A Novel Broadband Radial Curved Gradient Ridge Spatial Power Divider/Combiner

Abstract

The present invention proposes a novel broadband radial curve gradient ridge space power distribution / combiner, including: a coaxial curve impedance transformation structure, N impedance curve gradient radial ridge arrays and rectangular waveguide arrays; each impedance curve gradient radial The ridge is composed of a curved impedance gradient structure and a gradient rectangular coaxial inner conductor; the rectangular inner conductor is connected to the standard coaxial inner conductor, and the signal transmission is realized in the non-standard rectangular waveguide; Enter the extended waveguide disk, and then use the radial curve gradient ridge array and the coaxial conversion structure to directly distribute the signals with equal amplitude and phase to the N-way coaxial, and the distributed signals are output through the standard coaxial to realize the distribution of the N-way signals with Synthesis. The power distribution / synthesizer of the present invention has wide working frequency band, large output power, low power loss, high amplitude and phase consistency, many power distribution / synthesis channels, compact structure and convenient application.

Description

technical field [0001] The invention relates to the field of microwave and millimeter wave technologies, in particular to a power distribution / combiner. Background technique [0002] With the wide application of microwave and millimeter wave technology in the fields of radar, guidance and satellite communication, the requirements for the bandwidth, gain and output power of microwave and millimeter wave signal sources are getting higher and higher. Microwave and millimeter-wave solid-state power amplifier chips have the advantages of small size, light weight, high reliability, and compact circuit structure, and have become an important part of millimeter-wave radar, guidance, communication, and testing systems. [0003] However, because the output power of a single solid-state device is affected by the physical characteristics of its own semiconductor and the limitations of heat dissipation, processing technology, impedance matching and other issues, it is far from reaching t...

AI Technical Summary

Problems solved by technology

This technical solution can distribute and combine the input signals with equal amplitude and same phase, but limited by the size of the waveguide, it is difficult to apply this solution to the microwave low frequency band, and it is impossible to realize the power distribution and synthesis of multi-channel signals in the microwave frequency band

In addition, the bifurcation of the waveguide and the waveguide is easy to excite high-order modes, which deteriorates the echo reflection at the input port, thus greatly affecting its insertion loss and power combining efficiency.

Therefore, if figure 2 The technical scheme shown also has certain limitations

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