A multi-channel input microwave gain control module
A gain control, multi-channel technology, applied in gain control, amplification control, electrical components, etc., can solve the problems of not meeting system index requirements, poor stability, single function, etc., achieving light weight, low cost, and multiple integrated functions. Effect
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[0025] Such as figure 1 As shown, a multi-channel input microwave gain control module includes:
[0026] A limiter protection circuit that limits the amplitude of the input high-power signal;
[0027] A switch selection circuit for signal selection of the target channel;
[0028] Gain control circuit for amplifying, passing through or attenuating the signal entering the module;
[0029] A module control circuit that controls the switch selection circuit and the gain control circuit.
[0030] Such as figure 2As shown in the dotted line block diagram 201, a limiter protection circuit of a multi-channel input microwave gain control module, four limiter PIN diodes D1, D2, D3, D4 are installed on the microstrip line in parallel, wherein the limiter PIN diode The positive electrodes of D1, D2, and D3 are connected to the microstrip line, and the negative electrodes are respectively grounded. The negative electrode of the limiting PIN diode D4 is connected to the microstrip line...
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