CPW-Fed Stair-Shaped Slot Antennas With Circular Polarization

被引：61

作者：

Wang, Chien-Jen ^{[1
]}

Chen, Chih-Hsing ^{[1
]}

机构：

[1] Natl Univ Tainan, Dept Elect Engn, Tainan, Taiwan

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2009年 / 57卷 / 08期

关键词：

Circularly polarized; orthogonal electric field; quadrature phase difference; stair-shaped slot; RADIATION;

D O I：

10.1109/TAP.2009.2024586

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：

The design is described of a coplanar-waveguide (CPW)-fed circularly polarized slot antenna. The slot antenna and the feeding structure are fabricated on the same plane of the substrate so that circuit process and position alignment could be simplified. By etching a longitudinal slot at a middle point of a stair-shaped slot and tuning geometrical parameters, two orthogonal electric fields with quadrature phase difference excite a circularly-polarized wave. A bandwidth of 31.2% (2.30-3.15 GHz) is achieved with an axial ratio <3 dB and reflection coefficient < -10 dB. Details of the design procedure for the proposed antenna are described, and the results of the antenna performance are presented and discussed.

引用

页码：2483 / 2486

页数：4

共 8 条

[1] A novel design of a CPW-fed square slot antenna with broadband circular polarization [J].