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Asimov
That's right, because every thing is known about antennas And when something new comes along many will say they knew that all the time Art "Asimov" wrote in message ... " bravely wrote to "All" (21 Feb 05 19:20:16) --- on the heady topic of " F to B and F to rear" How about stuffing a dielectric type material between the elements so that the antenna can be made a lot shorter though it still remains electrically resonnant? How about making antennas 3 dimensional instead of on a single plane? How about using newly discovered materials exploiting their strange new properties.? I don't mean to upset any apple carts but this stuff has been done for almost 200 years and no really new ideas have been introduced since the past half century. A*s*i*m*o*v au From: " au Xref: aeinews rec.radio.amateur.antenna:5555 au The idea of 'reflectors' is perhaps the wrong approach, I prefer the au term deflectors au as one sees when rays hit a knife edge. Also close coupling enables au elements to au be current heavy and others voltage heavy such that it would appear au that a element was doing nothing when in fact it is the link for more au current loaded elements au in cluster form. A wall that you suggest can indeed reflect and absorb au radio waves but a au wall is beyond my means thus resonance remains a important function of au change. au But then close coupling of elements together with the deflection au aproach has been au dissed many times over the years with me and always ends in derision au of the author au Time will tell but experimentation can be enjoyable especially when a au trail of past results au suggests that my rubicon is at hand and close to submission to RADCOM au where experimentation is still valued. au Heh, no politics here or religeon so all can join in without fear au especially those who are willing au to consider and pursue 'outside of the box' ideas that others au distain., in order to gain better au understanding au Regards au Art au "Buck" wrote in message au ... On Mon, 21 Feb 2005 17:10:00 GMT, " wrote: Roy allow me to be a bit more directive regarding my pursuit. I am trying to see what methods that can be used for maximum gain. Having made many a long boom yagi 80 feet and 13 elements I have come to the cinclusion that thinking must move away from Yagi's. If one starts with a balloon squeezed in the center we get the figure 8 pattern. I think we all can agree on that My logic is that we must find a way to move all the volume at the rear to the front thus increasing the front diameter before we begin to massage it. The present thinking is one sqeeze at the rear is the best that one can do. It is here that I part company with the norm. If we move all the volume to the front then talk of gain/boom length becomes moot. .... Acme Corp: Unlimited credit for disadvantaged coyotes. |
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