90-degree phase synthesis switch intermediate-frequency amplification assembly circuit

Abstract

The invention discloses a 90-degree phase synthesis switch intermediate-frequency amplification assembly circuit. The circuit comprises the following components: a, a signal synthesis circuit for synthesizing two RF signals whose phase difference is 90 degrees into one RF signal for output; b, a low-pass filter circuit whose input end is connected with the output end of the signal synthesis circuit for suppressing a high-order mode in the synthesized RF signal; c, a switch circuit, wherein the output end of the low-pass filter circuit is connected with the input end of the switch circuit, and whether a filtered RF signal is output or cut off is selected through control signals sent by the control end of the switch circuit; d, a signal amplification circuit whose input end is connected with the output end of the switch circuit; and e, a feed network which provides stable working voltages for the signal amplification circuit. The 90-degree phase synthesis switch intermediate-frequency amplification assembly circuit can realize synthesis and filtering of two RF signals whose phase difference is 90 degrees, suppresses interference signals under the effect of the control signals, realizes the function of amplifying gated RF output signals and also has the advantages of small volume, high anti-interference capability, convenient application and the like.

Description

technical field [0001] The invention relates to the technical field of microwave hybrid integrated circuits, in particular to a 90° phase synthesis switch intermediate frequency amplifying component circuit. Background technique [0002] In traditional microwave hybrid integration, discrete devices are selected according to the functional requirements of the components, and the electrical connection of the discrete devices is completed by means of insertion or placement to form components with certain electrical functions. This microwave hybrid integration method, due to the large size of each discrete device, is convenient for assembly and welding. In addition, the large size of the discrete device also makes the device location and layout distance larger, reducing the electromagnetic compatibility of components and other problems. Heavy weight restricts the application requirements of system miniaturization and light weight. [0003] In actual specific applications, it is...

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Problems solved by technology

At present, there is no component circuit with similar technical index requirements in the market

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