A Wideband Miniaturized 3 dB Hybrid Coupler for Passive Beam Switching Application

Kazim, J. U. R. , Abbas, H. , Ur Rehman, M. , Imran, M. A. and Abbasi, Q. H. (2022) A Wideband Miniaturized 3 dB Hybrid Coupler for Passive Beam Switching Application. In: 2021 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, Singapore, 04-10 Dec 2021, pp. 693-694. ISBN 9781728146706 (doi: 10.1109/APS/URSI47566.2021.9704554)

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Abstract

This paper proposes a wideband miniaturized 3 dB 90° hybrid coupler for passive beam switching application. The hybrid coupler is usually employed in an antenna array feed network in a butler matrix. For ease of fabrication and measurement, the operating frequency of the hybrid 90° coupler is designed from 700–960 MHz. Hence, an operating bandwidth of around 30% is achieved at the center frequency of 830 MHz. A size reduction of 83% is accomplished along with a fractional bandwidth of 30% by carefully adopting a meander structure with optimized spacing to enhance the capacitance within the structure. The proposed design is fabricated on Rogers 4360 substrate and measured results of the prototype show good agreement with simulated results.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Imran, Professor Muhammad and Ur Rehman, Dr Masood and Abbas, Dr Hasan and Kazim, Jalil Ur Rehman and Abbasi, Dr Qammer
Authors: Kazim, J. U. R., Abbas, H., Ur Rehman, M., Imran, M. A., and Abbasi, Q. H.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
College of Science and Engineering > School of Engineering > Systems Power and Energy
ISBN:9781728146706
Published Online:16 February 2022
Copyright Holders:Copyright © 2021 IEEE
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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