Enhancing Bandwidth of CP Microstrip Antenna by Using Parasitic Patches in Annular Sector Shapes to Control Electric Field Components

被引：54

作者：

Lin, Jiang-Feng ^{[1
]}

Chu, Qing-Xin ^{[1
]}

机构：

[1] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Guangdong, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 05期

基金：

中国国家自然科学基金;

关键词：

Axial ratio (AR); bandwidth; circularly polarized (CP); compact size; low profile; parasitic patch;

D O I：

10.1109/LAWP.2018.2825236

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter finds that bandwidth of a circularly polarized (CP) microstrip antenna can be enhanced by using two annular-sector-shaped parasitic patches. This is because the induced current on the parasitic patches involves both x- and y-components, hence it can control the theta and phi components of the electric field. For the purpose of demonstration, a bandwidth-enhanced CP microstrip antenna is proposed and analyzed. Except from low profile and compact size, its impedance matching can be adjusted while keeping the CP feature unchanged, which simplifies the design process. The axial-ratio bandwidth of the proposed antenna can be effectively increased from 1.3% to 3.3%, while its impedance bandwidth is increased from 4.3% to 6.0%.

引用

页码：924 / 927

页数：4

共 14 条

[1]

Altair, CADFEKO Suite 7.0

[2]

[Anonymous], 2016, Antenna Theory and Design

[3] A Ka-Band High-Gain Circularly Polarized Microstrip Antenna Array [J].

Chen, Aixin ;

Zhang, Yanjun ;

Chen, Zhizhang ;

Cao, Shunfeng .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2010, 9 :1115-1118

[4] A Wideband Sequential-Phase Fed Circularly Polarized Patch Array [J].

Deng, Changjiang ;

Li, Yue ;

Zhang, Zhijun ;

Feng, Zhenghe .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2014, 62 (07) :3890-3893

[5] Compact Broadband Circularly Polarized Antenna With Parasitic Patches [J].

Ding, Kang ;

Gao, Cheng ;

Qu, Dexin ;

Yin, Qin .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2017, 65 (09) :4854-4857

[6] Gain-Improved Broadband Circularly Polarized Antenna Array With Parasitic Patches [J].

Ding, Kang ;

Gao, Cheng ;

Yu, Tongbin ;

Qu, Dexin ;

Zhang, Bing .

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS, 2017, 16 :1468-1471

[7]

Khidre A, 2010, IEEE ANTENN PROPAG M, V52, P219, DOI 10.1109/MAP.2010.5687512

[8] Investigation of circularly polarized loop antennas with a parasitic element for bandwidth enhancement [J].

Li, RL ;

DeJean, G ;

Laskar, J ;

Tentzeris, MM .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2005, 53 (12) :3930-3939

[9] A Sequential-Phase Feed Using a Circularly Polarized Shorted Loop Structure [J].

Li, Yue ;

Zhang, Zhijun ;

Feng, Zhenghe .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2013, 61 (03) :1443-1447

[10] Wideband Circular Polarization Reconfigurable Antenna [J].

Lin, Wei ;

Wong, Hang .

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, 2015, 63 (12) :5938-+

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