Clamped beam direct heating on-line type unknown frequency microwave phase detector

Abstract

The invention provides a clamped beam direct heating on-line type unknown frequency microwave phase detector. The clamped beam direct heating on-line type unknown frequency microwave phase detector is constituted by cascading a six-interface clamped beam coupler, a channel selection switch, a microwave frequency detector, a microwave phase detector and a direct heating type microwave power sensor; the six-interface clamped beam coupler is composed of a coplanar waveguide, a medium layer, an air layer and a clamped beam; the power coupling from a first interface to a third interface and to a fourth interface and from the first interface to a fifth interface and to a sixth interface of the six-interface clamped beam coupler is the same respectively, and a signal to be detected is input through the first interface, is output to an inferior processing circuit through a second interface, is output to the microwave phase detector through the fourth interface and the sixth interface, and is output to the channel selection switch through the third interface and the fifth interface; a seventh interface and an eighth interface of the channel selection switch are connected to the direct heating type microwave power sensor, and a ninth interface and a tenth interface of the channel selection switch are connected to the microwave frequency detector; finally on-line phase detection from 0-360 degrees of an unknown frequency signal is achieved.

Description

technical field

[0001] The invention provides an on-line unknown-frequency microwave phase detector directly heated by a fixed-support beam, which belongs to the technical field of micro-electromechanical systems. Background technique

[0002] The phase detection of microwave signals is widely used in phase modulators, phase shift keying (PSK), phase-locked loops (PLL), antenna phase pattern testing, and phase characteristics measurement of various microwave devices. Therefore, it is necessary to grasp and control the phase of the signal in the microwave frequency band, and the phase of the microwave signal has become an important measurement parameter. The present invention is based on the Si technology to design an on-line microwave phase detector with unknown frequency, which is directly heated by a fixed support beam and realizes on-line phase detection. Contents of the invention

[0003] Technical problem: The phase detector in the traditional microwave circuit not o...

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