Decoupling of Microstrip Antennas with Defected Ground Structure Using the Common/Differential Mode Theory

Bingyi Qian; Xiaoming Chen; Ahmed Kishk

doi:10.1109/LAWP.2021.3064972

Decoupling of Microstrip Antennas with Defected Ground Structure Using the Common/Differential Mode Theory

Bingyi Qian
, Xiaoming Chen
, Ahmed Kishk

电子与信息学部

Xi'an Jiaotong University
Concordia University

科研成果: 期刊稿件 › 文章 › 同行评审

121 引用（Scopus）

摘要

A compact structure with slot splitting meandered lines defected ground is proposed to reduce the mutual coupling between two microstrip antennas with a center-to-center distance of 0.38λ. The meandered line defected ground structure is symmetrically etched on the ground between the microstrip antennas. The proposed structure is optimized and explained by the common/differential mode theory. For experimental verification, the structure is fabricated and measured. Simulation and measurement results with excellent agreement show that the mutual coupling can be reduced significantly using the proposed structure. In addition, significant improvement is achieved in radiation efficiency, realized gain, and the decoupled array's envelope correlation coefficient.

源语言	英语
期刊论文编号	9373933
页（从-至）	828-832
页数	5
期刊	IEEE Antennas and Wireless Propagation Letters
卷	20
期	5
DOI	https://doi.org/10.1109/LAWP.2021.3064972
出版状态	已出版 - 5月 2021

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title = "Decoupling of Microstrip Antennas with Defected Ground Structure Using the Common/Differential Mode Theory",

abstract = "A compact structure with slot splitting meandered lines defected ground is proposed to reduce the mutual coupling between two microstrip antennas with a center-to-center distance of 0.38λ. The meandered line defected ground structure is symmetrically etched on the ground between the microstrip antennas. The proposed structure is optimized and explained by the common/differential mode theory. For experimental verification, the structure is fabricated and measured. Simulation and measurement results with excellent agreement show that the mutual coupling can be reduced significantly using the proposed structure. In addition, significant improvement is achieved in radiation efficiency, realized gain, and the decoupled array's envelope correlation coefficient.",

keywords = "Common and differential modes, defected ground structure (DGS), microstrip antenna, mutual coupling",

author = "Bingyi Qian and Xiaoming Chen and Ahmed Kishk",

note = "Publisher Copyright: {\textcopyright} 2002-2011 IEEE.",

year = "2021",

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doi = "10.1109/LAWP.2021.3064972",

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T1 - Decoupling of Microstrip Antennas with Defected Ground Structure Using the Common/Differential Mode Theory

AU - Qian, Bingyi

AU - Chen, Xiaoming

AU - Kishk, Ahmed

PY - 2021/5

Y1 - 2021/5

N2 - A compact structure with slot splitting meandered lines defected ground is proposed to reduce the mutual coupling between two microstrip antennas with a center-to-center distance of 0.38λ. The meandered line defected ground structure is symmetrically etched on the ground between the microstrip antennas. The proposed structure is optimized and explained by the common/differential mode theory. For experimental verification, the structure is fabricated and measured. Simulation and measurement results with excellent agreement show that the mutual coupling can be reduced significantly using the proposed structure. In addition, significant improvement is achieved in radiation efficiency, realized gain, and the decoupled array's envelope correlation coefficient.

AB - A compact structure with slot splitting meandered lines defected ground is proposed to reduce the mutual coupling between two microstrip antennas with a center-to-center distance of 0.38λ. The meandered line defected ground structure is symmetrically etched on the ground between the microstrip antennas. The proposed structure is optimized and explained by the common/differential mode theory. For experimental verification, the structure is fabricated and measured. Simulation and measurement results with excellent agreement show that the mutual coupling can be reduced significantly using the proposed structure. In addition, significant improvement is achieved in radiation efficiency, realized gain, and the decoupled array's envelope correlation coefficient.

KW - Common and differential modes

KW - defected ground structure (DGS)

KW - microstrip antenna

KW - mutual coupling

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VL - 20

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EP - 832

JO - IEEE Antennas and Wireless Propagation Letters

JF - IEEE Antennas and Wireless Propagation Letters

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M1 - 9373933

ER -

Decoupling of Microstrip Antennas with Defected Ground Structure Using the Common/Differential Mode Theory

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