Basal lamina integrated waveguide compensation type wideband phase shifter

Abstract

The invention relates to a substrate integrated waveguide compensated type wideband phase shifter which can be widely applied to substrate integrated waveguide devices and systems which have special requirements for phase position such as beam shaping network, difference channels, recoverable antenna arrays and the like, thus realizing integrated design; the phase shifter has a planar circuit structure; an upper-layer metal bonded copper surface (1) and a lower-layer metal bonded copper surface (2) are respectively arranged on the two surfaces of a medium substrate (3), and two rows of metallized through holes (4) penetrate through the medium substrate (3) to connect the upper-layer metal bonded copper surface (1) and the lower-layer metal bonded copper surface (2) for forming a No.1 substrate integrated waveguide branch (5), and the other two rows of the metallized through holes (4) penetrate through the medium substrate (3) to connect the upper-layer metal bonded copper surface (1) and the lower-layer metal bonded copper surface (2) for forming a No.2 substrate integrated waveguide branch (6); the phase shifter has extreme wide band, good amplitude equalization degree, compact structure, low loss and low parasitic cross coupling, and is easy to be integrated with other passive circuits and active circuits. The phase shifter is manufactured on the medium substrate, therefore,the cost is low and the precision is high.

Description

technical field [0001] Phase shifter is one of the key technologies of microwave and millimeter wave devices. The substrate-integrated waveguide compensation broadband phase shifter can be widely used in substrate-integrated waveguide devices and systems that have special requirements for phase, such as beamforming networks, differential circuits, and return antenna arrays, to achieve integrated design. Background technique [0002] The research of phase shifter mainly focuses on two aspects: broadband characteristics and amplitude equalization. Among them, it is particularly difficult to implement a broadband phase shifter. In order to be integrated with circuits designed based on different transmission line structures, the phase shifter also needs to be realized by different transmission line structures. For broadband phase shifters, the most well-known are the "Schiffman phase shifters" implemented on striplines, microstrip lines, or coplanar waveguides and the broadban...

AI Technical Summary

Problems solved by technology

However, compared with various devices with excellent performance that have been realized by using substrate-integrated waveguides, the phase shifter based on this new structure design is particularly backward, and has become a bottleneck that limits the performance of substrate-integrated waveguide devices (that is, the device's The bandwidth can only be determined by the bandwidth of the phase shifter)

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