Characteristic mode analysis of a compact circularly polarized rotated square slot antenna

被引：5

作者：

Gyasi, Kwame Oteng ^{[1
]}

Boukarkar, Abdelheq ^{[2
]}

Kwakye, Kingsford Sarkodie Obeng ^{[1
]}

Ellis, Mubarak Sani ^{[1
]}

Ahmed, Abdul-Rahman ^{[1
]}

Kponyo, Jerry John ^{[1
]}

Basit, Muhammad Abdul ^{[3
]}

Shoaib, Nosherwan ^{[4
]}

机构：

[1] Kwame Nkrumah Univ Sci & Technol, Dept Telecommun Engn, Kumasi, Ghana

[2] Ecole Super Ali CHABATI, Algiers, Algeria

[3] Univ Engn & Technol, Dept Elect Engn, Taxila, Pakistan

[4] Natl Univ Sci & Technol NUST, Sch Elect Engn & Comp Sci SEECS, Islamabad, Pakistan

来源：

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2023年 / 65卷 / 06期

关键词：

broadband antennas; characteristic mode analysis; circularly polarized antennas; microstrip slot antennas; PLANAR MONOPOLE ANTENNA; DESIGN; STRIPS; PAIR;

D O I：

10.1002/mop.33616

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：

Presented in this paper is a circularly polarized (CP) wide 45 degrees rotated slot antenna with a broad bandwidth. Characteristic mode analysis is initially carried out to show that, by simply rotating a square slot, CP waves can be radiated if it is properly excited. A simple 50 omega feedline is then designed to excite the slot for the generation of broadband CP waves. The antenna has a total volume of 30 x 30 x 1.6 mm(3). Measurement results indicate a broad S-11 <= -10 dB impedance bandwidth of 85.7% (3.2-8 GHz), a broadband 3 dB axial ratio bandwidth of 57.1% (3.5-6.3 GHz) and a peak gain of 3.6 dBi are obtained by the antenna. The proposed antenna possesses stable radiation patterns as well as relatively flat gain over its operational bandwidth in addition to being compact. It can thus be used for wireless technologies such as WiMAX 3.5 and 5.5 GHz, WLAN 5.2 and 5.8 GHz in addition to Industrial, Scientific, and Medical 5.8 GHz.

引用

页码：1762 / 1769

页数：8

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