Mutual coupling reduction between finite spaced planar antenna elements using modified ground structure

Muhammad Shahzad Sadiq; Cunjun Ruan; Hamza Nawaz; M. Ali Babar Abbasi; Symeon Nikolaou

doi:10.3390/electronics10010019

Mutual coupling reduction between finite spaced planar antenna elements using modified ground structure

Muhammad Shahzad Sadiq, Cunjun Ruan^*, Hamza Nawaz, M. Ali Babar Abbasi, Symeon Nikolaou

^*Corresponding author for this work

Queen's University Belfast

Research output: Contribution to journal › Article › peer-review

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Abstract

In this paper, a modified ground structure capable of reducing mutual coupling to provide isolation between adjacent antenna elements is presented. The proposed modified ground structure is a combination of a strategically located ground slot, asymmetric partial ground and a substrate-integrated pin wall. The use of the modified ground structure causes a more than 28 dB (measured value) mutual coupling reduction. The modified ground structure has been optimized and validated with a finite spaced planar 2 × 1 antenna array operating at 4.16 GHz, intended for unmanned aerial vehicle radar altimeter applications. The patch antennas built with the MGS exhibit high gain (greater than 6 dBi throughout the operational band), along with inter-element coupling as low as −65 dB. Mutual coupling reduction at lower contours is beneficial for altimeter applications.

Original language	English
Article number	19
Number of pages	8
Journal	Electronics (Switzerland)
Volume	10
Issue number	1
Early online date	25 Dec 2020
DOIs	https://doi.org/10.3390/electronics10010019
Publication status	Published - Jan 2021

Bibliographical note

Funding Information:
This work is supported by the National Natural Science Foundation of China (Grant No. 61831001).

Publisher Copyright:
© 2020 by the authors. Licensee MDPI, Basel, Switzerland.

Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.

Keywords

Altimeter
Antenna array
Modified ground structure
Mutual coupling reduction

ASJC Scopus subject areas

Control and Systems Engineering
Signal Processing
Hardware and Architecture
Computer Networks and Communications
Electrical and Electronic Engineering

Access to Document

10.3390/electronics10010019Licence: CC BY

Mutual Coupling Reduction between Finite Spaced Planar Antenna Elements Using Modified Ground Structure
Copyright 2021 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.
Final published version, 23.7 MBLicence: CC BY

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Cite this

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abstract = "In this paper, a modified ground structure capable of reducing mutual coupling to provide isolation between adjacent antenna elements is presented. The proposed modified ground structure is a combination of a strategically located ground slot, asymmetric partial ground and a substrate-integrated pin wall. The use of the modified ground structure causes a more than 28 dB (measured value) mutual coupling reduction. The modified ground structure has been optimized and validated with a finite spaced planar 2 × 1 antenna array operating at 4.16 GHz, intended for unmanned aerial vehicle radar altimeter applications. The patch antennas built with the MGS exhibit high gain (greater than 6 dBi throughout the operational band), along with inter-element coupling as low as −65 dB. Mutual coupling reduction at lower contours is beneficial for altimeter applications.",

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note = "Funding Information: This work is supported by the National Natural Science Foundation of China (Grant No. 61831001). Publisher Copyright: {\textcopyright} 2020 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.",

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AU - Sadiq, Muhammad Shahzad

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AU - Nawaz, Hamza

AU - Ali Babar Abbasi, M.

AU - Nikolaou, Symeon

N1 - Funding Information: This work is supported by the National Natural Science Foundation of China (Grant No. 61831001). Publisher Copyright: © 2020 by the authors. Licensee MDPI, Basel, Switzerland. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

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