A ka-band miniaturized waveguide three-way equal power distribution combiner

Abstract

The invention discloses a Ka frequency band miniaturization waveguide three-path equipower distribution synthesizer and belongs to the field of millimeter-wave power synthesis. The Ka frequency band miniaturization waveguide three-path equipower distribution synthesizer is achieved through a waveguide structure and comprises a radio frequency input port, a radio frequency tuning post and a radio frequency output port, wherein after the radio frequency tuning post divides two paths of radio frequency signals with the power ratio of 1:1 into four paths, the power ratio is 2:1:1:2, and after two middle paths of signals with the power ratio of 1 are synthesized, the four paths of signals with the power ratio of 2:1:1:2 are changed into three paths of signals with the power ratio of 2:2:2. The Ka frequency band miniaturization waveguide three-path equipower distribution synthesizer resolves the problem that the power distribution or synthesis process of a traditional three-path power distribution or synthesis network is achieved by two stages, so that the size is large; the structure has the advantages of being convenient to machine and install, small in size, quite low in insertion loss, convenient to achieve and the like; the path number of the power distribution / synthesis network can be flexibly controlled in actual application, and the Ka frequency band miniaturization waveguide three-path equipower distribution synthesizer is widely applied to a high-power synthesis amplifier.

Description

technical field [0001] The invention relates to a Ka frequency band miniaturized waveguide three-way equal power distribution synthesizer, which belongs to the field of Ka frequency band high power synthesis. Background technique [0002] Many scholars and research institutions at home and abroad have done in-depth research on the three-way power distribution / combiner. In terms of microstrip planar circuits, Jui-ChiehChiu used five microstrip coupling lines to realize a three-way power splitter in the Ka frequency band. The power splitter has an insertion loss of less than 5.1dB at 30GHz and an isolation of greater than 17dB. LinLi and KeWu implemented a three-way power divider / combiner using fan-shaped microstrip lines at the low end of the Ka band, and the power divider achieved a combined efficiency of 79.5% at 25GHz. [0003] The power divider / combiner in the form of a waveguide is widely used in the millimeter wave frequency band due to its advantages such as low loss....

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Problems solved by technology

[0004] The technology of the present invention solves the problem: overcomes the deficiencies in the prior art, and proposes a Ka-band miniaturized waveguide three-way equal power distribution synthesizer, which solves the problem that the power division / combination link of the traditional three-way power distribution / combination network is realized in two stages resulting in bulky

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