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On Sat, 1 Nov 2014 15:26:52 -0000, "gareth"
wrote: ***** Without the remnants of non-radiated power, there could NOT be a standing wave! That's quite true. Standing waves require a transmission line. If all the RF has been radiated, and there are no "remnants" left in the transmission line, there can be no standing waves because there is no RF. Think about the other boundary conditions. If you unplug the coax cable and antenna, and then transmit into an open circuit, there are no standing waves. All the RF power is converted to heat in the output stage. There's no transmission line upon which to produce standing waves and there's no antenna to radiate. Without a transmission line or antenna, there can be no radiation and therefore, not standing waves. The other extreme is also true. If you have an infinitely long lossless coaxial cable, with either an open, short, or black hole at the far end, there are no reflections because the wave will never quite reach the open or short to produce a reflection. Without a reflection, there can be no standing waves. -- Jeff Liebermann 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558 |
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