Rectangular Waveguide Radial Power Combiner

Abstract

The invention discloses a rectangular waveguide radial power combiner, aiming to provide a rectangular waveguide radial power combiner with wide frequency band, high efficiency and high power capacity. The present invention is realized through the following technical scheme: the mode converter is an S-tube double-curved circular waveguide in the form of an S-shaped double-curved tube body, and the waveguide port 4 at the fixed end of the bottom is connected to the power synthesis cavity in the disc, and the free end is fixedly connected to the cone The square window waveguide cavity of the body-shaped waveguide; on the hollow platform of the disk, there are rectangular waveguide input ports directed to the power combining cavity according to the circular angle and distributed around the center to match the radial uniform circular array of the circular platform; the mode converter will be rectangular Dominant mode TE in waveguide 10 Mode Conversion to TM with Radial Rotation Characteristic of Electric Field in S-Tube Double Bend Circular Waveguide 01 mode, through the main mode TE in the input port channel of the connected power combining cavity and each radially distributed rectangular waveguide 10 mode coupling, and finally complete the equal-amplitude and in-phase synthesis of each input port.

Description

technical field [0001] The invention relates to the field of microwave / millimeter wave circuits, in particular to microwave / millimeter wave modules and components including mode converters, which are mainly used in multi-channel high-efficiency power synthesis of rectangular waveguides. Background technique [0002] Microwave / millimeter wave power synthesis technology is usually divided into chip-level synthesis and circuit-level synthesis. Chip-level synthesis connects multiple amplifier dies in parallel to achieve output power superposition. Its physical size is generally much smaller than the wavelength, thus limiting the synthesis scale. Circuit-level power synthesis can be divided into two types: resonant and non-resonant according to the realization principle. Typical resonant power combiners are based on rectangular or cylindrical cavities, and are widely used in narrowband power amplifiers and oscillators. The disadvantages are poor phase noise and frequency stabilit...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of low efficiency of the current cascaded multi-channel waveguide power combiner in the millimeter wave high frequency band, and propose a rectangular waveguide radial power combiner with wide frequency band, high efficiency and high power capacity for multi-channel one-time synthesis. , in order to achieve the purpose of increasing the output power of the millimeter-wave high-band synthetic amplifier

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