Broadband Variable Radial Waveguide Power Combiner Using Multi-Section Impedance Matching Technique

Authors

  • Gang Xu School of Physical Electronics University of Electronic Science and Technology of China, Chengdu, 610054, China
  • Xue-Song Yang School of Physical Electronics University of Electronic Science and Technology of China, Chengdu, 610054, China
  • Jia-Lin Li School of Physical Electronics University of Electronic Science and Technology of China, Chengdu, 610054, China
  • Zhi-Ming Tian School of Physical Electronics University of Electronic Science and Technology of China, Chengdu, 610054, China

Keywords:

Broadband power combiner, microwave components, multi-section impedance matching, spatial power combiner, variable radial waveguide

Abstract

An L-band spatial variable radial waveguide power combiner with broad bandwidth and high power capacity is proposed. By adopting several techniques simultaneously, including multi-section impedance matching probes, grounded disc, and axial slots, the performance of the power combiner is improved. The parameters of the combiner are calculated, simulated and tested. It has a measured operation bandwidth ranging from 1.2 GHz to 2 GHz with VSWRs less than 1.4 at all ports. The extra insertion losses between the input ports and output port are less than 0.3 dB and the isolation between the input ports is better than 15 dB. The power capacity can reach 600 W and the combining efficiency achieves 90 %. The results from calculation, simulation, and measurement reasonably agree with each other.

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Published

2021-10-06

How to Cite

[1]
G. . Xu, X.-S. . Yang, J.-L. . Li, and Z.-M. . Tian, “Broadband Variable Radial Waveguide Power Combiner Using Multi-Section Impedance Matching Technique”, ACES Journal, vol. 28, no. 05, pp. 463–468, Oct. 2021.

Issue

2013: Vol 28 Iss 5

Section

General Submission