S-wave band miniature balanced filter power divider

Abstract

An S-wave band miniature balanced filter power divider disclosed by the present invention comprises a balanced filter and two miniature microwave power dividers, wherein the balanced filter comprises a first input port, a first input inductor, six-stage successive connected parallel resonant unit, a first output inductor, a second output inductor, a Z-shaped interstage coupling strip line, a first output port and a second output port. The first output port of the balanced filter is connected with the input port of the first microwave power divider, and the second output port is connected with the input port of the second microwave power divider. The two miniature microwave power dividers are composed of the compact three-dimensional stereo integrated structures. The above structures are all realized by a multi-layer low temperature co-fired ceramic technology. The S-wave band miniature balanced filter power divider of the present invention has four output signals of same power, has the advantages of being able to generate the quadrature phase, being easy to debug, being small in insertion loss, and is suitable for a system of the corresponding microwave frequency band, such as a communication system, a satellite communication system, etc.

Description

technical field [0001] The invention relates to a power divider, in particular to an S-band miniature balanced filter power divider. Background technique [0002] A power splitter (referred to as a power splitter) is an important microwave passive device. Power splitters are widely used in the field of wireless communications, mainly including microwave power amplification, linearization circuits, etc. From the mid-1950s to the 1960s, the world's first power splitter, called Wilkinson (Wilkinson) power splitter, was proposed in the world, which was realized by using the impedance transformation characteristics of a quarter-wavelength transmission line. With the rapid development of communication technology and the intensification of competition in the communication industry, new requirements have been put forward for the performance of Wilkinson power splitters. The traditional Wilkinson power splitter can only work in a single frequency band and its odd harmonics, which i...

AI Technical Summary

Problems solved by technology

[0004] But so far, there is still a lot of room for development in the technology of power dividers, and the development of modern communications requires higher performance power dividers

For example, if the withstand power is not large enough and the frequency band is not wide enough, it will affect the scope of use of the power divider and limit the development of the power divider

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