| 摘要 |
PURPOSE:To save the cost remarkably by adopting the constitution that physical arrangement of components is mad symmetrical along a signal flow direction in pairs with two frequency converters for horizontal and vertical polarized light amplifiers so as to use a local oscillator power supply circuit and a chassis case in common. CONSTITUTION:Horizontal and vertical polarized signals sh, sv outputted from a polarized wave converter 31 are inputted respectively to frequency converters 33, 43 via low noise amplifiers 32, 42 and converted into an intermediate frequency signal. The physical arrangement of the components of the low noise amplifiers 32, 42, the frequency converters 33, 43 and intermediate frequency amplifiers 35, 45 pairs is constituted to be symmetrical along the signal flow. The local oscillation signal of a local oscillator 34 is inputted to the frequency converters 33, 43. Further, an output of the power supply circuit 37 is fed to the low noise amplifiers 32, 42, the intermediate frequency amplifiers 35, 45 and the local oscillator 34. Through the constitution above, a horizontal and a vertical polarized wave signal are given to output terminals 36, 46 respectively.
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