Silicon-based gap-coupled direct millimeter-wave signal detection instrument

Abstract

The invention relates to a silicon-based slot-coupled direct type millimeter wave signal detecting instrument, comprising three large modules, including a sensor, an analog-digital converter, an MCS51 single-chip microcomputer, and a liquid crystal display; the sensor is composed of a coplanar waveguide, slot coupling structures, a phase shifter, a single-pole double-throw switch, a Wilkinson power divider, a Wilkinson power combiner and a direct type thermoelectric power sensor; the silicon-based slot-coupled direct millimeter wave signal detecting instrument is manufactured on a high-resistance Si substrate; the two slot coupling structures above measure signal frequency, and the two slot coupling structures below measure signal phase; the Wilkinson powder divider and the Wilkinson power combiner are mainly composed of a coplanar waveguide, an asymmetric coplanar strip line, and an isolating resistor; the direct type thermoelectric power sensor is mainly composed of a coplanar waveguide, two thermocouples and a blocking capacitor. The analog-digital converter portion is composed of STM32 and AD620 peripheral circuits. The MCS51 single-chip microcomputer is used for formula computing; the liquid crystal display portion is composed of a liquid crystal display screen; these structures are simple and efficient, and the efficiency of the silicon-based slot-coupled direct type millimeter wave signal detecting instrument is improved greatly.

Description

technical field [0001] The invention provides a silicon-based gap-coupled direct millimeter-wave signal detection instrument, which belongs to the technical field of micro-electro-mechanical systems (MEMS). Background technique [0002] Today's era is an era of increasingly profound development of information science and technology, and various electronic circuit technologies are emerging one after another. In the microwave field, the detection technology of various parameters of microwave signals is a science and technology that people need very much. The millimeter wave signal is an electromagnetic wave with a wavelength in the range of one to ten millimeters. It is in the area where microwaves and far-infrared waves overlap. Simply put, millimeter waves are the extension of microwaves to high frequencies or the development of light waves to low frequencies. In the past, people only Deep research is being done on microwaves and low-frequency signals below microwaves, but w...

AI Technical Summary

Problems solved by technology

Among them, frequency, phase and power are the three major parameters that describe a complete millimeter wave signal. The detection of millimeter wave is the measurement of these three parameters. However, with the rapid increase of military demand, most of the original signal detection instruments can no longer Meet the current needs, especially various high-frequency problems in the microwave frequency band, which have always restricted the development of signal detectors

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