| 摘要 |
PROBLEM TO BE SOLVED: To make a conventional transmission and reception polarization sharing antenna feeding circuit smaller by uniting a transmission and distribution circuit for obtaining transmission polarization at an optional polarization angle and a reception and combination circuit capable of receiving reception polarization having an optional polarization angle as an amplitude constant value at a receiver terminal in a transmission and reception sharing circuit. SOLUTION: This transmission and reception polarization sharing antenna feeding circuit is made smaller and can share transmission and reception by introducing the distribution and combination circuit configured to be a circuit that has a variable phase shifter B in which only the phase shift quantity of transmission radio wave changes and a variable phase shifter A in which only the phase shift quantity of reception radio wave changes and by using the distribution and combination circuit in the transmission and reception polarization sharing feeding circuit. COPYRIGHT: (C)2005,JPO&NCIPI
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