摘要 |
PURPOSE:To expect reduction in an interference wave against interference fading and to compensate the reduction in the reception power of a synthesized output even against an attenuation fading. CONSTITUTION:A power distributer 13a branches a reception signal S13 into two and endless phase shifters 11a, 11b control the phases of two branched signals based on control signals C1, C2 so that the deviation in the amplitude of the reception signals S11, S13 is minimized. Power synthesizers 12a, 12b synthesize the output signals of the endless phase shifters 11a, 11b and reception signals S11, S12 and give the result to power distributers 13b, 13c. Amplitude deviation detectors 17a, 17b detect the amplitude deviation of output signals of the power distributers 13d, 13e and endless phase shifter control circuits 18a, 18b generate the control signals C1, C2 based on the result of detection and the control signals are imparted to the endless phase shifters 11a, 11b. |