Radiometer front-end and terminal equipment

Abstract

The invention is applicable to technical fields such as terahertz security inspection, material detection, remote sensing, and medical diagnosis, and provides a radiometer front end and terminal equipment, including: a metal box body, a groove is opened on the upper side, and a plurality of protrusions are arranged in the groove. platform; the two-stage low-noise amplifier chip and the detector chip are sequentially arranged on the corresponding boss; the quartz probe is arranged in the groove of the metal box and is located on the left side of the boss corresponding to the two-stage low-noise amplifier chip; video The amplifier is set in the groove of the metal box and is located on the right side of the corresponding boss of the detector chip; the electrical connection between adjacent devices; the temperature compensation bias circuit is connected to at least one of the two-stage low-noise amplifier chips Chip connection, which can significantly reduce the volume of each circuit, has a high degree of integration, can realize automatic assembly, reduce assembly difficulty, and can realize engineering and mass production.

Description

technical field [0001] The invention belongs to the technical fields of terahertz security inspection, material detection, remote sensing and medical diagnosis, and in particular relates to a radiometer front end and terminal equipment. Background technique [0002] A radiometer is a high-sensitivity receiver used to measure the thermal radiation of objects and is the main tool for passive microwave remote sensing. At present, microwave radiometers based on ground-based (including ground and ship-borne platforms), space-based (including aircraft, missile, balloon platforms), satellite-based (including satellite, spacecraft, space shuttle platforms) and other carrier platforms have been developed rapidly. The radiometer has also developed from the meter-wave radiometer to the current millimeter-wave, sub-millimeter-wave and even terahertz radiometers. Terahertz can pass through non-metallic and non-polar materials with little attenuation, and realize terahertz imaging detect...

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Problems solved by technology

[0005] In view of this, the embodiment of the present invention provides a radiometer front-end and terminal equipment to solve the problems of poor integration and difficult assembly in the prior art, and changes in ambient temperature will cause significant fluctuations in the output voltage of the radiometer. The problem of voltage drift

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