A Compact Wideband Circularly Polarized Planar Monopole Antenna With Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth

被引：9
作者：
Alnahwi, Falih M. [1 ]
Al-Yasir, Yasir I. A. [2 ]
Ali, Nazar T. [2 ,3 ]
Gharbia, Ibrahim [2 ]
See, Chan Hwang [4 ]
Abd-Alhameed, Raed A. [2 ,5 ]
机构：
[1] Univ Basrah, Coll Engn, Dept Elect Engn, Basrah 61001, Iraq
[2] Univ Bradford, Fac Engn & Informat, Bradford BD7 1DP, W Yorkshire, England
[3] Khalifa Univ, Abu Dhabi, U Arab Emirates
[4] Edinburgh Napier Univ, Sch Engn & Built Environm, Edinburgh EH10 5DT, Midlothian, Scotland
[5] Basrah Univ, Coll Sci & Technol, Dept Informat & Commun Engn, Basra 61004, Iraq
来源：
IEEE ACCESS | 2022年 / 10卷
基金：
英国工程与自然科学研究理事会; 欧盟地平线“2020”;
关键词：
Axial ratio; circular polarization; planar antenna; wideband; SLOT ANTENNA;
D O I：
10.1109/ACCESS.2022.3196610
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
The antenna presented in this study is a compact wideband monopole with wideband circular polarization that can be used across the whole antenna bandwidth. A rectangular C-shaped patch is partially covered by a ground plane in the proposed planar monopole antenna. Inserting a rectangular stub to the ground plane, etching a slit at the antenna patch, and adding a semicircular stub at the top of the antenna feed line increase the antenna impedance bandwidth (BW) and axial ratio bandwidth (ARBW). An FR4 substrate with overall dimensions of 25 mm x 25 mm x 1.6 mm is used to create the antenna. The antenna's observed impedance BW is 70% (4.55 GHz in the 4.3-8.85 GHz band), while the measured broadside ARBW is improved to a value of 82.2 percent (5.3 GHz along the range 3.8-9.1 GHz). The impedanceBWis perfectly covered by the ARBW; hence the antenna can be considered circularly polarized throughout its operational spectrum. Within the antenna BW, the measured gain is greater than 1.5 dB.
引用
收藏
页码：81828 / 81835
页数：8
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