A Compact Broadband Cross-Shaped Circularly Polarized Planar Monopole Antenna With a Ground Plane Extension

被引：68

作者：

Gyasi, Kwame Oteng ^{[1
]}

Wen, Guangjun ^{[1
]}

Inserra, Daniele ^{[1
]}

Huang, Yongjun ^{[1
]}

Li, Jian ^{[1
]}

Ampoma, Affum Emmanuel ^{[1
]}

Zhang, Haobin ^{[2
]}

机构：

[1] Univ Elect Sci & Technol China, Sch Commun & Informat Engn, Ctr RFIC & Syst Technol, Chengdu 611731, Sichuan, Peoples R China

[2] Southwest China Res Inst Elect Equipment, Sci & Technol Elect Informat Control Lab, Chengdu 610036, Sichuan, Peoples R China

来源：

IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS | 2018年 / 17卷 / 02期

基金：

中国国家自然科学基金;

关键词：

Axial ratio (AR); broadband; circular polarization (CP); monopole antenna; AXIAL-RATIO BANDWIDTH; SQUARE SLOT ANTENNA;

D O I：

10.1109/LAWP.2018.2789430

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 presents a new broadband circularly polarized (CP) planar monopole antenna with a simple structure and compact size. Broadband CP operation is achieved by vertically extending one side of the ground plane, while a cross-shaped monopole structure and the presence of a slot in the ground plane assure a broad impedance bandwidth. The antenna is successfully simulated, and a prototype is fabricated. Measurement results indicate that the 3 dB axial-ratio bandwidth is about 42.6% (2.6 GHz, 4.8-7.4 GHz), fully covered by a -10 dB impedance bandwidth of 55.5% (3.35 GHz, 4.36-7.71 GHz). Furthermore, the proposed antenna can be used together with a metallic reflector to obtain directive radiation patterns with enhanced broadside gain.

引用

页码：335 / 338

页数：4

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