A series-parallel phase shifter

Abstract

The invention discloses a series parallel connection phase shifter which comprises a signal transmission line and a dielectric plate clamped between two surfaces of the signal transmission line; the signal transmission line comprises a first main rod and a second main rod, a joint of the first main rod and the second main rod extends to form an input port, the other end of the fist main rod extends to form a first cross rod and a second cross rod, the first cross rod is provided with a first output port, the second cross rod is provided with a second output port, the other end of the second main rod extends to form a third cross rod and a fourth cross rod, the third cross rod is provided with a third output port, the fourth cross rod is provided with a fourth output port, the dielectric plate comprises a first dielectric plate, a second dielectric plate, a third dielectric plate and a fourth dielectric plate, the first dielectric plate and the second dielectric plate are connected in parallel, the first dielectric plate and the third dielectric plate are connected in series, and the second dielectric plate and the fourth dielectric plate are connected in series, so that the functions of short size of the phase shifter and multiple output ports are achieved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a series-parallel phase shifter. Background technique [0002] A phase shifter is a device that can adjust the phase of a wave. At present, the phase shifter is widely used in various fields and is an important part of the wireless antenna system. [0003] At present, there are mainly two types of phase shifters in the industry: the first is to achieve the purpose of phase shifting by adjusting the length of the medium covering the electromagnetic wave transmission path; the second is to achieve the purpose of phase shifting by changing the length of the electromagnetic wave transmission path; among them , the first type of phase shifter includes a transmission line and a dielectric plate. By adjusting the relative position between the medium plate and the transmission line, the overlapping area between the medium plate and the transmission line is adjusted, thereb...

AI Technical Summary

Problems solved by technology

[0004] The first type of phase shifter is divided into series phase shifter and parallel phase shifter; the series phase shifter outputs multiple For signals with different phases, the advantage is that there are many output ports, but the disadvantage is that the strip line is long in size, complex in machining and large in signal loss; the parallel phase shifter is to install a dielectric plate on multiple connected strip lines. The phase converter has the advantage of short size, but at the same time has the problem of few output ports

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