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#1
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EH-antenna: sensation or fraude?
I have been reading about the EH-antenna on many web sites and in magazines, but they were only "kitchen recipies" of how to build it - without any theoretical explanation. Practical result reports were mostly contradictory - from being equal to a full size dipole, to statements that the antenna does not radiate at all, but the coaxial lead does. The other day I ran across the EH-antenna home web site (http://EH-antenna.com) where finally I could find the expected theory - which left me embarassed. It comes out that the EH antenna uses an until now unknown kind of magnetic field - completely different from the usual H-field. "The EH-antenna is a revolutionary concept because it does not fit the classical theory" - I can read on that Web-site. In a classical dipole the phase-shift between the E and the H field is 90 degrees. In the EH-antenna it is 0 (zero) degrees! A certain Russian phisicist Vladmir Korobeynikov reworked the famous Maxwell's four equations and they are now called "enhanced ones". Possibly he will be candidated for the Nobel prize in physics (!?). Since magnetic force-lines are closed and cannot be cut apart, underwater EH-antennas allegedly work equally well - a bonanza for submarines! It also seems that those force-lines spread across the whole Universe in zero time - which challenges the Einstein's theory of the limited speed of light to 300 000 km/sec. If all this is only partly true, this will be the greatest discovery after Heinrich Herz discovered radio waves 130 years ago. They also say that the best communication is made between the two EH-antennas. Has anybody tried that already? I do not wish to be a primitive Earthian who does not accept progress in science; however, life has taught me to be cautious. I would like to read an official report about the EH-antenna phenomenon from a competent scientific institution, a University, a research laboratory, or similar. Any comments? Bozidar, 9a2hl |
#2
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![]() "Bozidar Pasaric" wrote in message et.hr... EH-antenna: sensation or fraude? I have been reading about the EH-antenna on many web sites and in magazines, but they were only "kitchen recipies" of how to build it - without any theoretical explanation. Practical result reports were mostly contradictory - from being equal to a full size dipole, to statements that the antenna does not radiate at all, but the coaxial lead does. The other day I ran across the EH-antenna home web site (http://EH-antenna.com) where finally I could find the expected theory - which left me embarassed. It comes out that the EH antenna uses an until now unknown kind of magnetic field - completely different from the usual H-field. And the crap begins to flow, now that classical physics has been slain. Ed wb6wsn |
#3
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![]() And the crap begins to flow, now that classical physics has been slain. Ed wb6wsn Physics? You want physics? I'll show you physics :-) "The voltage and current applied to a Hertz antenna are in phase, therefore the E and H fields are not in phase, thus radiation does not occur until a great distance from the antenna. A proper phase shift network allows the Hertz antenna to become an EH Antenna where a 90 degree phase delay between the current and voltage applied to the antenna cause the E and H fields to be in phase, therefore the EH antenna is able to transfer power from the transmitter directly to radiation. This is the basis of the EH Antenna patent." http://www.eh-antenna.com/library/EH...DEFINITION.pdf |
#5
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Walter Maxwell wrote:
On 14 Oct 2004 08:46:50 -0700, (k4wge) wrote: And the crap begins to flow, now that classical physics has been slain. Ed wb6wsn Physics? You want physics? I'll show you physics :-) "The voltage and current applied to a Hertz antenna are in phase, therefore the E and H fields are not in phase, thus radiation does not occur until a great distance from the antenna. A proper phase shift network allows the Hertz antenna to become an EH Antenna where a 90 degree phase delay between the current and voltage applied to the antenna cause the E and H fields to be in phase, therefore the EH antenna is able to transfer power from the transmitter directly to radiation. This is the basis of the EH Antenna patent." http://www.eh-antenna.com/library/EH...DEFINITION.pdf I f there really is an issued patent on the EH antenna, the paragraph above is proof that the Patent Office examiner who approved the patent application for issuance was completely snowed by the applicant's patent attorney who wrote the application. This doesn't happen too often, but it does happen. Unless the patent examiner is extremely well versed in electromagnetic theory he could easily be persuaded that the EH principle is valid, while it is not. Walt Maxwell, W2DU About the only thing the Patent Office will deny a patent on based on science is perpetual motion mechines; all bets are off on anything else. -- Jim Pennino Remove -spam-sux to reply. |
#6
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![]() This doesn't happen too often, but it does happen. Unless the patent examiner is extremely well versed in electromagnetic theory he could easily be persuaded that the EH principle is valid, while it is not. Walt Maxwell, W2DU Who was the examiner? They have some really great seasoned guys there in that department, and a rolling list of rookies. 73, Chip N1IR |
#7
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Hate to break the news, Walt, but it happens very, very often. Even
years ago, when I was doing some consulting work on a patent case and read a couple of hundred antenna patents, there was a great deal of pseudo- and voodoo-science in issued patents. These days, it's rampant. My favorite example is US patent #6,025,810, "Hyper-Light-Speed Antenna", but I'm sure even this is far from the most egregious. Roy Lewallen, W7EL Walter Maxwell wrote: I f there really is an issued patent on the EH antenna, the paragraph above is proof that the Patent Office examiner who approved the patent application for issuance was completely snowed by the applicant's patent attorney who wrote the application. This doesn't happen too often, but it does happen. Unless the patent examiner is extremely well versed in electromagnetic theory he could easily be persuaded that the EH principle is valid, while it is not. Walt Maxwell, W2DU |
#8
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Sorry to hear that, Roy. I was very much involved with the RCA Patent Dept in
my early years with RCA, 1949 to 1957. During that time the US Patent Office examiners were smart and tough. A patent used to be worth something. Walt On Thu, 14 Oct 2004 10:54:49 -0700, Roy Lewallen wrote: Hate to break the news, Walt, but it happens very, very often. Even years ago, when I was doing some consulting work on a patent case and read a couple of hundred antenna patents, there was a great deal of pseudo- and voodoo-science in issued patents. These days, it's rampant. My favorite example is US patent #6,025,810, "Hyper-Light-Speed Antenna", but I'm sure even this is far from the most egregious. Roy Lewallen, W7EL Walter Maxwell wrote: I f there really is an issued patent on the EH antenna, the paragraph above is proof that the Patent Office examiner who approved the patent application for issuance was completely snowed by the applicant's patent attorney who wrote the application. This doesn't happen too often, but it does happen. Unless the patent examiner is extremely well versed in electromagnetic theory he could easily be persuaded that the EH principle is valid, while it is not. Walt Maxwell, W2DU |
#9
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Roy Lewallen wrote:
Hate to break the news, Walt, but it happens very, very often. Even years ago, when I was doing some consulting work on a patent case and read a couple of hundred antenna patents, there was a great deal of pseudo- and voodoo-science in issued patents. These days, it's rampant. My favorite example is US patent #6,025,810, "Hyper-Light-Speed Antenna", but I'm sure even this is far from the most egregious. Roy Lewallen, W7EL Walter Maxwell wrote: I f there really is an issued patent on the EH antenna, the paragraph above is proof that the Patent Office examiner who approved the patent application for issuance was completely snowed by the applicant's patent attorney who wrote the application. This doesn't happen too often, but it does happen. Unless the patent examiner is extremely well versed in electromagnetic theory he could easily be persuaded that the EH principle is valid, while it is not. Walt Maxwell, W2DU Firstly, sorry for the 'e' in 'fraud' which does not belong there. In fact, I asked for help from the hams' fraternity ('all the people know all' ) - and in connection with the US PTO patent No. 6,486,846 B1, issued on November 26, 2002 to Robert T. Hart. I live on the fifth floor of a condominium building, and like many hams, I have no space on the roof for a proper antenna. So, an EH-antenna would be ideal - if it worked. I have not tried to build it yet, but I am trying to learn about it as much as possible before that. Obviously, my question has two aspects: a practical and a theoretical one. The practical one: "The proof of a pie is in eating it." Has anyone built it and can testify it is successful at least as much as a standard dipole - according to the inventor's statements? I have not found such an answer yet. The theoretical one: My theoretical education in that field is rather amateurish, but still I think I can put some questions: On the EH-antenna homepage (http://EH-antenna.com) I found a statement that in the classical dipole the E and the H fields are a result of a LINEAR movement of electric charges, while those fields in the EH-antenna are a result of the ROTATION of those charges - a feature unknown until now. Nowhere in textbooks could I find any word about this possible phenomenon. In science discoveries must be double confirmed at least, but here this is not the case. By the way, it was interesting to read that once an issued US Patent was a guarantee that the patent at least worked, but today it seems it is only a certificate that someone was the first to register his idea or wouldbe invention. If so, I could even understand that, because today the USPTO should have armies of different experts and endless laboratories to test all the applications. However, it would be fair to openly proclaim such a principle. In my country (Croatia) the situation is similar. (The other day I read in the newspapers that someone got a patent for superconductivity at normal temperatures (through some alloys), although, to my knowledge, nobody saw it work.) Imagine a coil without ohmic resistance, or long distance lines without any losses! I am still dreaming about an ideal antenna having not more than 10% of wavelength and 100% efficiency. Thanks for all the posts, anyhow. Bozidar, 9a2hl |
#10
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![]() "k4wge" wrote in message om... And the crap begins to flow, now that classical physics has been slain. Ed wb6wsn Physics? You want physics? I'll show you physics :-) I prefer one of these: Physics? Physics?!? we don't need no stinking Physics! or The Physics? You want the Physics? You can't handle the Physics! |
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