Millimeter-wave double-pole double-throw switch circuit

Abstract

The invention relates to a millimeter-wave double-pole double-throw switch circuit comprising four input-output ports and four gating control circuits matched with the four input-output ports. The nillimeter-wave double-pole double-throw switch circuit is characterized in that branched circuits connected with the four input-output ports are connected in the cross shape; the first input-output port and the third input-output port on two ends of the same branched circuit and form symmetric branched circuit structures taking the crossing point as the center with the second input-output port and the fourth input-output port on two ends of another branched circuit; and the four input-output ports of all the branched circuits are connected to the crossing point through the gating control circuits. The millimeter -wave double-pole double-throw switch circuit controls the passageway of the millimeter-wave signal through the gating control circuits, thereby eliminating the phase errors generated by different chips, having improved reliability and consistence, reducing the use amount of the precious metal and lowering the cost. In addition, the millimeter-wave double-pole double-throw switch circuit uses one chip to realize the function of two chips, thereby reducing the assembling and debugging load and improving the efficiency of the system.

Description

technical field [0001] The invention relates to a switch circuit, in particular to a switch circuit for controlling and switching transmission signals of a millimeter wave electronic system, more specifically to a millimeter wave double-pole double-throw switch circuit. technical background [0002] With the gradual maturity of millimeter-wave monolithic integrated circuits and millimeter-wave technology, integrated millimeter-wave transceiver systems have begun to be widely used in communication, identification, radar, guidance and other fields. The millimeter-wave switch chip is an indispensable part of the millimeter-wave transceiver system, and its function is to control the path of the millimeter-wave signal and realize the switching between transceivers. [0003] In the traditional multi-antenna transceiver system, two "back-to-back" single-pole double-throw (also known as SPDT) switch circuits are usually used to realize the function of the double-pole double-throw (a...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem of poor consistency and high cost of millimeter-wave transmission and reception switching in the prior art, the present invention provides a simple structure, low cost, and can be integrated in one chip to realize two-way transmission and reception of millimeter-wave signals. throw switch circuit

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