An Integral Large Scan Angle Beamforming Phase Shifter

Abstract

The invention discloses an integral-type large-scanning-angle beam forming phase shifter which comprises a power division network, a phase shifter body and a transmission mechanism of the phase shifter body. Signals feed an antenna array element of a beam former through the power division network, the power division network and the phase shifter body are designed integrally, the power division network comprises a plurality of independent power division units, the phase shifter body comprises a plurality of phase shifting units, and the power division units are parallelly arranged in the phase shifter body; a first power division unit is positioned in the middle, each two adjacent power division units on two sides of the first division unit are serially connected through the corresponding phase shifting unit and then parallelly connected through the first power division unit, the tail end of the power division network is in microstrip line connection, a power division ratio is designed for each power division unit according to amplitude of the antenna array element, and the transmission mechanism adjusts electrical length of each phase shifting unit. The integral-type large-scanning-angle beam forming phase shifter has the advantages of wide frequency band, low insertion loss, simple, convenient and structure, low cost, high phase control accuracy, simple servo structure, convenience in mounting and use and the like.

Description

technical field [0001] The present invention relates to the field of beam synthesis technology, in particular to an integral large scanning angle beam synthesis phase shifter. Background technique [0002] The phased scanning antenna is developed from the array antenna. By changing the feed amplitude and phase of each sub-array in the array antenna, the beam pointing of the entire array is changed. The broadband phased array antenna has been widely used in military and civilian fields. attention and rapid development. [0003] The scanning method of the phased scanning array antenna is divided into two types: mechanical scanning and electronic scanning. The electronic scanning method is limited in application because of its complex circuit, high cost, and limited phase control accuracy. The mechanical phased scanning array antenna uses the mechanical movement of the entire antenna system or a part of it to realize beam scanning, and uses the mechanical movement of the entir...

AI Technical Summary

Problems solved by technology

In order to solve the technical problems of the general phased beam scanning array antenna, such as complex circuit, limited phase control accuracy, arbitrary design of antenna array form, high cost, etc.

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