Double-throw switch loading phase shifter

Abstract

The invention discloses a double-throw switch loading phase shifter. The double-throw switch loading phase shifter comprises an input port P1, a switch output port P2, a switch output port P3, a switch output port P4, an output port P5, a switch output port P6, a voltage control port P7, a voltage control port P8, a voltage control port P9, a voltage control port P10 and a phase shifter; the phaseshifter is composed of a switch chip WKD1, a switch chip WKD2, and two transmission lines of unequal length, namely a straight-through strip line L1 and a straight-through strip line L2; the two transmission lines have the same propagation coefficient beta and different length difference delta x; an initial reference line is connected through switch switching, then the reference line is disconnected, a phase shifting line is connected, and the phase shifting amount delta theta of an output port is equal to beta delta x; and due to the fact that the propagation coefficient beta is determined,the phase shift can reach 90 degrees by designing the length difference of the two transmission lines. According to the double-throw switch loading phase shifter provided by the invention, the 90-degree phase shift is achieved well, the structure is simple, and the performance is better.

Description

technical field [0001] The invention relates to a phase shifter, in particular to a double-throw switch loaded phase shifter. Background technique [0002] With the rapid development of mobile communication, radar communication and other wireless communication technologies and military and national defense electronic systems, miniaturization, high performance, and low cost have become the key development directions in the field of microwave radio frequency, which proposes higher performance for microwave radio frequency devices. Require. The function of the phase shifter is to shift the signal phase by a certain angle. It is generally used in systems that need to control the phase of the waveform and require high phase accuracy. The main indicators describing the performance of this component are: operating frequency range, input and output standing wave ratio, return loss, insertion loss, phase difference, etc. Among them, the existing phase shifter is difficult to achieve...

AI Technical Summary

Problems solved by technology

The main indicators describing the performance of this component are: operating frequency range, input and output standing wave ratio, return loss, insertion loss, phase difference, etc. Among them, the existing phase shifter is difficult to achieve 90° phase shift, so it cannot meet the application requirements

In addition, there is no phase shifter packaged in the LTCC process in the prior art, resulting in defects such as large loss and poor temperature stability in the existing phase shifter

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