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K7ITM wrote:
"The Antenna-Transmission Line Analog." It's a good analog. For instance a 1/4WL open-wire open-circuit stub made with resistance wire with a resistivity of 0.0000021 ohms-m has a feedpoint impedance of 35 ohms according to EZNEC. The current distribution is a close approximation to a 1/4WL monopole. The additional resistance over copper approximates the energy lost to radiation in a 1/4WL monopole. -- 73, Cecil, IEEE, OOTC, http://www.w5dxp.com |
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