Broadband radial waveguide power divider/combiner in abnormal-cycloid transition structure

Abstract

The invention discloses a broadband radial waveguide power divider/combiner in an abnormal-cycloid transition structure, and belongs to the field of a microwave/millimeter wave passive device. The broadband radial waveguide power divider/combiner comprises a standard rectangular waveguide, a rectangular waveguide-coaxial waveguide transition structure, a coaxial waveguide, the abnormal-cycloid transition structure, a radial waveguide provided with a multi-stage step impedance matching structure and N paths of standard output rectangular waveguides. The broadband radial waveguide power divider/combiner has the advantages of large power capacity, wide frequency band, compact structure, low insertion loss and reflection loss, good amplitude consistency and phase consistency of each output port and easy processing and assembling and the like.

Description

Technical field [0001] The invention belongs to the field of microwave / millimeter wave passive devices, and specifically relates to a broadband radial waveguide power distribution / combiner with a cycloid-like transition structure. Background technique [0002] The solid-state power amplifier is one of the core modules in the millimeter wave communication system, and its power output level and working bandwidth determine the overall communication system performance. The output power of a single-chip microwave solid-state chip is limited, and it is difficult to achieve high-power output requirements. In order to meet the high-power output requirements of the application system, the usual technical approach is to use power synthesis technology to combine the output power of multiple solid-state chips. [0003] The technical solutions for microwave and millimeter wave power synthesis usually include: planar power distribution / synthesis technology, spatial power synthesis technology and...

AI Technical Summary

Problems solved by technology

However, this tapered ridge configuration reduces the power capability of the power splitter / combiner

In addition, according to the requirements of impedance matching, the radial curve gradient ridge array must be connected to the standard coaxial inner conductor through a certain length of rectangular coaxial inner conductor, which will make the volume of the entire power distribution / combiner larger and increase the design the complexity

At the same time, this gradual structure requires high machining accuracy, making it difficult to realize the process.

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