Alan0354
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I am learning Antenna.
http://ptuece.loremate.com/awp/node/2
In question 15, It tries to relate directivity with effective area by using two antenna A1 and A2. I can follow the derivation to the last part where we let \[P_1\;=\;P_2\]. Then it said according to reciprocity, \[P_{1-2}\;=\;P_{2-1}\]. Can anyone explain why this is true even if the two antennas have different directivity and effective area?
Thanks
Alan
http://ptuece.loremate.com/awp/node/2
In question 15, It tries to relate directivity with effective area by using two antenna A1 and A2. I can follow the derivation to the last part where we let \[P_1\;=\;P_2\]. Then it said according to reciprocity, \[P_{1-2}\;=\;P_{2-1}\]. Can anyone explain why this is true even if the two antennas have different directivity and effective area?
Thanks
Alan