| CROSS-DISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY |
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Design of a Broadband E-Plane Power Combiner Based on Quarter-Arc Bent Rectangular Waveguides for Sub-THz and THz Wave |
| Xiao-Pin Tang**, Zi-Qiang Yang, Zong-Jun Shi, Feng Lan |
Terahertz Research Center, School of Physical Electronics, University of Electronic Science and Technology of China, Chengdu 610054
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| Cite this article: |
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Xiao-Pin Tang, Zi-Qiang Yang, Zong-Jun Shi et al 2016 Chin. Phys. Lett. 33 088401 |
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Abstract A method of designing an E-plane power combiner composed of two quarter-arc bent rectangular waveguides is proposed for sub-THz and THz waves. The quarter-arc bent-waveguide power combiner has a simple geometry which is easy to design and fabricate. By HFSS codes, the physical mechanism and performance of the power combiner are analyzed, and the relationship between the output characteristics and the structure/operating parameters is given. Simulation results show that our power combiner is suitable for the combining of two equal-power and reversed-phase signals, the bandwidth of the combiner is wide and can be adjusted by the radius of the quarter-arc, and the isolation performance of the combiner can be improved by adding thin film resistive septa at the junction of two quarter-arc bent waveguides. Meanwhile, an approximate method based on the analytic geometrical analysis is given to design this power combiner for different frequency bands.
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Received: 11 March 2016
Published: 31 August 2016
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| PACS: |
84.32.-y
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(Passive circuit components)
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07.50.-e
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(Electrical and electronic instruments and components)
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84.40.Az
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(Waveguides, transmission lines, striplines)
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