| 摘要 |
In a moving body satellite communication apparatus for performing communication with a satellite by an antenna with a radome mounted on a moving body such as an aircraft, loss due to transmission through the radome, and distortion of polarization characteristics are compensated in the inside of the antenna. Variable phase shifters 9 a and 9 b and variable attenuators 19 a and 19 b, and variable phase shifters 10 a and 10 b and variable attenuators 20 a and 20 b are respectively controlled as one body in each channel, and the whole power EIRP radiated from the antenna is also optimally controlled by a common variable attenuator 21 inserted independently from the variable attenuators 19 a and 19 b, and therefore, radome correction and EIRP control can be simultaneously realized by a relatively simple circuit.
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