Volume 7, Issue 4, July 2019, Page: 101-108
A Broadband Millimeter-Wave Waveguide Power Divider with High Isolation
Hua Zhang, Nanjing Electronic Devices Institute, Nanjing, China
Deng Yun Shao, Nanjing Electronic Devices Institute, Nanjing, China
Yun Shao, Nanjing Electronic Devices Institute, Nanjing, China
Received: May 27, 2019;       Accepted: Jul. 16, 2019;       Published: Aug. 5, 2019
DOI: 10.11648/j.ajpa.20190704.12      View  97      Downloads  23
Abstract
In this paper, an E-plane stepped-impedance transformer and Y-junction bifurcation are used to form a waveguide power divider with ceramic substrate loaded with thin film resistors. This structure is realized high isolation in V-band by inserting a ceramic substrate at the H-plane center of the Y-junction waveguide bifurcation, both sides of which loaded with thin film resistors. The waveguide power divider was fabricated with aluminium-50% silicon, and has characteristics of light weight, lower coefficient of thermal expansion, good thermal conductivity, and its properties are more compatible with those of ceramic substrate. The principle and design procedure are described in detail. A V-band E-plane waveguide power divider is designed, fabricated, and measured. The measured results show that insertion loss is less than 0.4dB in the frequency range of 50~60GHz, with typical isolation levels of 25dB between the two output ports and amplitude imbalance less than 0.19dB, phase imbalance less than 1.4°. The measured and simulated results show good amplitude, phase, and isolation characteristics validating the proposed power divider.
Keywords
Millimeter-wave Waveguide Power Divider, High Isolation, Wide Bandwidth, Aluminium-50% Silicon
To cite this article
Hua Zhang, Deng Yun Shao, Yun Shao, A Broadband Millimeter-Wave Waveguide Power Divider with High Isolation, American Journal of Physics and Applications. Vol. 7, No. 4, 2019, pp. 101-108. doi: 10.11648/j.ajpa.20190704.12
Copyright
Copyright © 2019 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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