| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide radio communication equipment capable of preventing the phase rotation of the equipment output by compensating the phase even in the case of using a by-pass circuit whose phase is suddenly changed and executing stable communication. SOLUTION: In a circuit for by-passing an amplifier 6 arranged on the final stage of transmission, a phase compensation circuit consisting of a variable capacitance capacitor 9 capable of adjusting cutoff frequency by voltage and a coil 10 is inserted into a halfway of a by-pass side line (by-pass route). The rotational amount of the amplifier 6 is previously measured in order to absorb the dispersion of individual amplifiers 6 and the measured result is stored in an EEPROM 17, so that the circuit can correspond also to a case that the amplifier 6 whose gain is changed is used.</p> |
