Broadband microwave and millimeter wave receiver

Abstract

The invention discloses a broadband microwave and millimeter wave receiver and belongs to the field of a microwave millimeter wave test. The broadband microwave and millimeter wave receiver comprises a radio frequency unit, a switch filter unit and a local oscillator unit. A radio frequency input end, adopting a soft medium substrate, of the switch filter unit is adhered on a vertical surface with an arched structure by bending 90 degrees; the radio frequency unit generates a radio frequency signal and inputs the radio frequency signal into the switch filter unit; and the radio frequency signal output by the switch filter unit and a local oscillator signal generated by the local oscillator unit are subjected to frequency mixing in a high local oscillator and low local oscillator combination mode, and an intermediate frequency signal is output. The broadband microwave and millimeter wave receiver has the advantages of relatively high working frequency, a low noise coefficient, a high instant bandwidth, high channel consistency, high integration degree and high direction finding precision and angle resolution.

Description

technical field [0001] The invention belongs to the field of microwave and millimeter wave testing, in particular to a broadband microwave and millimeter wave receiver. Background technique [0002] The reception and processing of radar electromagnetic radiation signals has always been the key technology and research hotspot in the field of electronic countermeasures and passive guidance. , A number of measures such as extended operating frequency, frequency agility, frequency diversity, and intra-pulse modulation have been generally adopted, and radar decoys are equipped. In order to adapt to changes in radar technology, passive guidance systems need to have higher operating frequency and instantaneous bandwidth. [0003] In the prior art, the direction of the RF connector is perpendicular to the plane of the microstrip circuit. Usually, the inner conductor of the connector or the inner conductor of the glass terminal is vertically interconnected with the microstrip line t...

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Problems solved by technology

[0003] In the prior art, the direction of the RF connector is perpendicular to the plane of the microstrip circuit. Usually, the inner conductor of the connector or the inner conductor of the glass terminal is vertically interconnected with the microstrip line through a gold tape or a gold mesh, but the higher the frequency, the less vertically interconnected. The greater the influence of continuity on the circuit, the greater the insertion loss of the circuit

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