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#13
October 14th 14, 09:27 AM
posted to rec.radio.amateur.antenna
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Short antenna = reduced power
"gareth" wrote in message
... Quoting from Electromagnetism By F.N.H.Robinson in the Oxford Physics Series 1973 edition ISBN 0 19 8518913 Chapter 11, Radiation, page 102 Formula 11.11 Has in the equation for radiated power the term (2*PI*L/LAMBDA)**2 where L is the antenna length and LAMBDA the wavelength, thereby showing that the radiated power decreases when the antenna length decreases. I will read up further and report further... Ramo, Whinnery and Van Duzer gives the same derivation, including the derivation of radiation resistance. |
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