Millimeter-wave high-isolation 3dB power distributor

Abstract

The invention discloses a millimeter-wave high-isolation 3dB power distributor which comprises an input waveguide, a first output waveguide and a second output waveguide. The first output waveguide and the second output waveguide are connected with the input waveguide, matched structures with the same size and shape are arranged at the connection position between the first output waveguide and the input waveguide and the connection position between the second output waveguide and the input waveguide respectively, a ceramic wafer is arranged at the cross position between the two matched structures, film resistors are coated on the front side and the back side of the ceramic wafer, and the ceramic wafer is fixedly connected with the input waveguide. The millimeter-wave high-isolation 3dB power distributor is of an E-T structure. Compared with a traditional magic T structure, one end port is reduced, and the size of the power distributor is reduced. By means of the matched structures, the matching between the output waveguides and the input waveguide is improved, the insertion loss of the power distributor is reduced, and the phase balance of the power distributor is improved. Meanwhile, the millimeter-wave high-isolation 3dB power distributor has the advantages of being good in amplitude balance, high in isolation, simple in structure, convenient to operate and the like. In addition, the millimeter-wave high-isolation 3dB power distributor is convenient to popularize and apply in the industry.

Description

technical field [0001] The invention belongs to the technical field of power dividers, in particular to a millimeter-wave high-isolation 3dB power divider. Background technique [0002] The power divider is a multi-port microwave device that divides the input power into several output powers that are equal or unequal. The performance of the microwave power divider, such as insertion loss, isolation, phase balance and amplitude balance, will have an important impact on the performance of the entire system. At present, the common power divider mainly adopts microstrip line or waveguide distributed parameter power divider. Among them, the cavity waveguide power divider has small insertion loss and good amplitude balance, but its disadvantages are poor isolation and complicated manufacturing process. Contents of the invention [0003] The purpose of the present invention is to overcome the above-mentioned problems in the prior art, and provide a millimeter-wave high-isolation...

AI Technical Summary

Problems solved by technology

At present, the common power divider mainly adopts microstrip line or waveguide distributed parameter power divider. Among them, the cavity waveguide power divider has small insertion loss and good amplitude balance, but its disadvantages are poor isolation and complicated manufacturing process.

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