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#1
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On 23 Feb, 20:05, Gene Fuller wrote:
art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art |
#2
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On 23 Feb 2007 20:35:50 -0800, "art" wrote:
I never dreamt that I would find an actual array with all elements resonant being discussed You don't have to dream, we've discussed many multi resonant arrays. I've pointed you to a site with 100's of them, and Roy is the author on the best of them, four squares. It's quite conventional discussion here actually, but few coming to this group know how to manage the mutual coupling (something that Gauss wrote about). The many differences between Roy's writing and yours is that he supplies accurate design details, complete models, references, coupling parameters, and characteristics, all that are repeatedly VERIFIED. There is only one question that remains, really, what is IT that you are claiming? 73's Richard Clark, KB7QHC |
#3
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On Fri, 23 Feb 2007 23:52:56 -0800, Richard Clark
wrote: There is only one question that remains, really, what is IT that you are claiming? Hmm, killer question no doubt. A Broadway producer once sagely noted that if you cannot express your idea on the back of business card, you don't really have much to offer. If we are to rummage through the dusty attic of rambling thoughts: Pretty much everybody scorned the idea that antennas could be made better than the yagi because all was known let alone a completely new line of designs which were not made up of parassitic elements let alone of mainly resonant elements in cluster form for choice of polarity. Would it be galling, Art, for you to be the last to know that Roy has been publishing Gaussian antennas (not his term, thankfully) for years and distributed freely with every copy of his modeling software? Would it be unsettling to realize that Hams have been building them for decades? Would you be stunned to learn that their theory has been explained since Marconi was only operating at 5WPM? Surprised? Consult the Radiotelegraphy chapter of "Standard Handbook for Electrical Engineers," 1907-1917. Pay attention to the design called "Bellini-Tosi directive antenna." "By placing the moving coil in the proper position signals can be sent in any plane desired." This was at least 20 years before Yagi and Uda. An online reference to them 101 years ago: http://souvenirs-de-mer.blogdns.net/article64.html or from 102 years ago: http://72.14.253.104/search?q=cache:...ient=firefox-a dating back 107 years ago: http://dspt.club.fr/Applications.htm This topic is so old it creaks everytime the casket is robbed. 73's Richard Clark, KB7QHC |
#4
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![]() "art" wrote in message ups.com... On 23 Feb, 20:05, Gene Fuller wrote: art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art STATICS, I assume you man electrostatics is not a subset of magnetism but in a lot a lot of ways an analogy can bee drawn between the two. For example the attractive force betwen to charged particles is inversely proportional to the square of the distance, this is also true for magnetic particles but they really have nothing to do with each other.. Art sometimes I think you are confusing what Gauss wrote about statistics with statics. He did a lot more work with mathmatics including statistics than he ever did with magnatism. Your references to Gaussian field further strengthens my belief since Gausian field refers to a statistical distribution also known as a Guassian distibution, aka normal distribution. Jimmie |
#5
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On 24 Feb, 11:00, "Jimmie D" wrote:
"art" wrote in message ups.com... On 23 Feb, 20:05, Gene Fuller wrote: art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art STATICS, I assume you man electrostatics is not a subset of magnetism but in a lot a lot of ways an analogy can bee drawn between the two. For example the attractive force betwen to charged particles is inversely proportional to the square of the distance, this is also true for magnetic particles but they really have nothing to do with each other.. Art sometimes I think you are confusing what Gauss wrote about statistics with statics. He did a lot more work with mathmatics including statistics than he ever did with magnatism. Your references to Gaussian field further strengthens my belief since Gausian field refers to a statistical distribution also known as a Guassian distibution, aka normal distribution. Jimmie- Hide quoted text - - Show quoted text - There is no doubt that Gauss was more interested in mathematics than electromagnetism since he was a mathematician and where he is most known. But mathematics has been the basis for exploration of our universe in that both are bound by equilibrium ( see George Greens work that was later parlayed as the works of other mathematicians centuries later)and it is in matters in equilibrium that most of the masters opened up the secrets of nature. Because laws are based on mathematics they can flow easily from subject to subject as opposed to theorems. Another thing that Gauss found was the mathematics so usefull in todays communication fields i.e. cell communications and the Gauss name has been attached to antenna arrays purely by virtue of the use of mathematics derived from more than a century ago and yet Gauss can not be faulted by not refering to cell comunications as well as not being faulted to his lack of reference to antennas or yagis. The important point that one must draw from the masters is that mathematics is all about equilibrium which is also the basic law of nature and if one doesnt understand the underpinnings of equilibrium then one cannot build on what the masters have given us Art |
#6
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On 24 Feb, 11:00, "Jimmie D" wrote:
"art" wrote in message ups.com... On 23 Feb, 20:05, Gene Fuller wrote: art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art STATICS, I assume you man electrostatics is not a subset of magnetism but in a lot a lot of ways an analogy can bee drawn between the two. For example the attractive force betwen to charged particles is inversely proportional to the square of the distance, this is also true for magnetic particles but they really have nothing to do with each other. Whoooa kind sir where is that written? Thats like saying kinetic energy is not related to potential energy. Where on earth did that saying come from? I'll be on the net for a while if you want to debate that. I cleared all the snow off my driveway and the following day i went down on ice.Now my leg is wrapped up straight and I am on crutches. Make the rest of my day happy Art .. Art sometimes I think you are confusing what Gauss wrote about statistics with statics. He did a lot more work with mathmatics including statistics than he ever did with magnatism. Your references to Gaussian field further strengthens my belief since Gausian field refers to a statistical distribution also known as a Guassian distibution, aka normal distribution. Jimmie- Hide quoted text - - Show quoted text - |
#7
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![]() "art" wrote in message oups.com... On 24 Feb, 11:00, "Jimmie D" wrote: "art" wrote in message ups.com... On 23 Feb, 20:05, Gene Fuller wrote: art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art STATICS, I assume you man electrostatics is not a subset of magnetism but in a lot a lot of ways an analogy can bee drawn between the two. For example the attractive force betwen to charged particles is inversely proportional to the square of the distance, this is also true for magnetic particles but they really have nothing to do with each other. Whoooa kind sir where is that written? Thats like saying kinetic energy is not related to potential energy. Where on earth did that saying come from? I'll be on the net for a while if you want to debate that. I cleared all the snow off my driveway and the following day i went down on ice.Now my leg is wrapped up straight and I am on crutches. Make the rest of my day happy Art . Art sometimes I think you are confusing what Gauss wrote about statistics with statics. He did a lot more work with mathmatics including statistics than he ever did with magnatism. Your references to Gaussian field further strengthens my belief since Gausian field refers to a statistical distribution also known as a Guassian distibution, aka normal distribution. Jimmie- Hide quoted text - - Show quoted text - I dont work for yoU AND HAVE NO ATTENTION OF WORKING FOR YOU CANT YOU GO OUT AND FIND SOMETHING FOR YOURSELF. |
#8
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On Feb 23, 11:35 pm, "art" wrote:
On 23 Feb, 20:05, Gene Fuller wrote: art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art- Hide quoted text - - Show quoted text - no need to be surprised at having an antenna with elements that are all phased. I doubt if ther is anyone on the news group that doesnt know that a Yagi Uda antenna doesnt represent some kind of comprimise to an antenna with all of the elements feed. No one has ever said otherwise although you have claimed they have. The problem with having all the elements feed is that it is impractical to control power distribution and phasing when changing frequencies. The Yagi Uda overcomes this problem at a slight cost in gain. Your idea of an antenna with multiple fed resonant elements is a giant step backwards to a day when high gain steerable antennas were impractical most of the hams who didnt have the money or the real estate for huge arrays Antenna with multiple resonant element all being fed is very common in RADAR and space communication, you can achive very high gains in this manner just as you have stated. It is also very expensive, has narrow bandwidth and is a mechanical nightmare. NASA, AM BCB, commercial shortwave stations and various other agencies and private companies sometimes have a need for this type of antenna and they they have the money to build them, few hams do. The Yagi Uda antenna just fills a practical niche in antenna requirements. No ham I know of ever thought the Yagi antenna was the end-all of antennas as you have claimed. While it may not have the highest gain it certainly is the most practical antenna for a lot of us. Jimmie |
#9
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On 27 Feb, 11:16, "JIMMIE" wrote:
On Feb 23, 11:35 pm, "art" wrote: On 23 Feb, 20:05, Gene Fuller wrote: art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art- Hide quoted text - - Show quoted text - no need to be surprised at having an antenna with elements that are all phased. I doubt if ther is anyone on the news group that doesnt know that a Yagi Uda antenna doesnt represent some kind of comprimise to an antenna with all of the elements feed. No one has ever said otherwise although you have claimed they have. The problem with having all the elements feed is that it is impractical to control power distribution and phasing when changing frequencies. The Yagi Uda overcomes this problem at a slight cost in gain. Your idea of an antenna with multiple fed resonant elements is a giant step backwards to a day when high gain steerable antennas were impractical most of the hams who didnt have the money or the real estate for huge arrays Antenna with multiple resonant element all being fed is very common in RADAR and space communication, you can achive very high gains in this manner just as you have stated. It is also very expensive, has narrow bandwidth and is a mechanical nightmare. NASA, AM BCB, commercial shortwave stations and various other agencies and private companies sometimes have a need for this type of antenna and they they have the money to build them, few hams do. The Yagi Uda antenna just fills a practical niche in antenna requirements. No ham I know of ever thought the Yagi antenna was the end-all of antennas as you have claimed. While it may not have the highest gain it certainly is the most practical antenna for a lot of us. Jimmie- Hide quoted text - - Show quoted text - Jimmie, I have to congratulate you on your posting and your width of knoweledge. I for one was unaware that what I call a gaussian array was in publication and I would really appreciate a pointer where I could obtain more information on this. I have a multitude of books with respect to fields and waves plus antennas but with the advance of new technologies it is difficult for my bill fold to keep pace. As a further favor could you repeat the program test I proffered in my latest posting? I am asking since I know that your responses would be very worthwhile in reading since you appear to be a scholar that searches for truth and you would not be afraid to publisize your program used and result for the benefit of all. Thank you for your input and hopefully you will continue sharing Best regards Art KB9MZ |
#10
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On 27 Feb, 11:16, "JIMMIE" wrote:
On Feb 23, 11:35 pm, "art" wrote: On 23 Feb, 20:05, Gene Fuller wrote: art wrote: On 23 Feb, 15:07, Gene Fuller wrote: To keep it simple, Gauss' Law is precisely one of the four standard Maxwell Equations. Gauss' Law has been part of electromagnetics and antenna theory for eons. As for electromechanics, who knows? 73, Gene W4SZ Gene, forgive me if I am incorrect but I am going to assume you have an engineering degree and are fully conversant with the work of the masters. I f I am not correct then we can stop at this point Otherwise I fully recommend that you check out the web foe a book on fields and waves or something like that by a professor at Rutgers University. In chapter 21 he delves very deeply into an array consisting of four elements all of which are resonant. Ofcourse he doesn't mention anything of mine but you will notice that the array he chose is actually what I refer to as a Gaussian array since it meets all the requirements that I have expoused on my page. He doesn't use computor programs but basic mathematics to provide all the desirables plus a radiation field. This array is really a derivitation of one designed some 50 years ago and is the only one I know that exists in literature. If you study this chapter and relate it to what I am expousing then possible you will see things with fresh eyes. But again if you are not fully educated in this field save your self from the bother. I personaly have a program that if you isert any fugure and tell it to obtain maximim gain I assure you it will not produce a yagi but a gaussian array........ and I am thrilled with that. Nuff said Art Art, You seem to have misunderstood my point. AAALLLLLL antennas, regardless of structure, material, efficiency, resonance, location, or phase of the moon are Gaussian. Gauss' Law is an integral part of classical electromagnetics. Nothing can escape. No, I do not have an engineering degree, but I do have several degrees in physics. Unfortunately, I am significantly dumber than a rock, so I have no more to offer in this thread. 73, Gene W4SZ- Hide quoted text - - Show quoted text - Watch out Gene, I stated that Statics was a subset of electromagnetics and I caught hell from everybody. Seems like things are infectional around here.The book that I proferred would really be to much for a lot of people no matter how much they over estimate their abilities especially when they try to debate reasons why the writer is incorrect! When I asked for academic help regarding research I got an Email from a guy at the space antenna agency who referred me to chapter 1 and 21. I never dreamt that I would find an actual array with all elements resonant being discussed Art- Hide quoted text - - Show quoted text - no need to be surprised at having an antenna with elements that are all phased. I doubt if ther is anyone on the news group that doesnt know that a Yagi Uda antenna doesnt represent some kind of comprimise to an antenna with all of the elements feed. No one has ever said otherwise although you have claimed they have. If I did it was unintensional. I have always stated that a Yagi because of its constructional ease is difficult to beat The problem with having all the elements feed is that it is impractical to control power distribution and phasing when changing frequencies. All problems can be overcome and I only pointed that out because in this case it was a possibility The Yagi Uda overcomes this problem at a slight cost in gain. Pretty hard to comment here since I am not sure of the application in mind Your idea of an antenna with multiple fed resonant elements is a giant step backwards to a day when high gain steerable antennas were impractical most of the hams who didnt have the money or the real estate for huge arrays If size is what you consider important then the gaussian array deserves to be looked into in that it maximises the use of volume and not of length to obtain a desirable which means less property area for a desired gain. Antenna with multiple resonant element all being fed is very common in RADAR and space communication, you can achive very high gains in this manner just as you have stated. Yes I have seen this in Antennas for everyone especially the crossed versions True they are resonant but they follow a empirical design where as the Gaussian design can be seen as superior It is also very expensive, has narrow bandwidth and is a mechanical nightmare. Absolutely not true, if an antenna uses parasitic elements it is the worst possible choice for antenna bandwidth. Progression of curves produced by the addition of reactances clearly points this out. NASA, AM BCB, commercial shortwave stations and various other agencies and private companies sometimes have a need for this type of antenna and they they have the money to build them, few hams do. Really they have to know about them before they can be considered of use and that is for industrial experts to decide. Checking thru patent files of the U.S. the only reference I came across under the heading of a gaussian antenna was not even a specific design of an antenna but a means of interpretation and channelisation of information gained using mathematical theorems of Gauss and Green. Can you help me in that area? The Yagi Uda antenna just fills a practical niche in antenna requirements. Absolutely but science moves on No ham I know of ever thought the Yagi antenna was the end-all of antennas as you have claimed. Well it is extremely popular tho I am sure that many would consider discarding it if it improved a Yagi a smidgeon, contesters are insane about that sort of thing While it may not have the highest gain it certainly is the most practical antenna for a lot of us. I totally agree, for the amateur operator it meets all rational means unless his plot width is half the width reqyuired for the gain provided by a yagi At that point many would be willing to look at alteranatives. Pretty hard to swing a long boom yagi around on a small ship so you look for alternatives. Weather people are devising means of measuring weather conditions by overlaying reflections of weather systems from vertical and horizontal radiation and then overlaying them with a minimum fo time difference which needs a different aproach to antennas. You can not tie up the advance of science by tying it to a Yagi. I am not saying you are of that attitude but there are so many that resiswt change regardless of the cost Jimmie- Hide quoted text - - Show quoted text - Very nice discussion, thanks, not like some of the abusive forms that have been directed at me which presented zero substance in support of provided content which amplifys their inadequacies to all Very best regards and thanks. Art KB9MZ |
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