Dual-band CPW-Fed Circularly Polarized Slot Antenna with Improved Ground Plane Structure

被引：5

作者：

Chen, Bo ^{[1
]}

Zhang, Fushun ^{[1
]}

机构：

[1] Xidian Univ, Natl Lab Sci & Technol Antennas & Microwave, Xian 710071, Shaanxi, Peoples R China

来源：

PROGRESS IN ELECTROMAGNETICS RESEARCH LETTERS | 2014年 / 46卷

关键词：

Circular polarization - Microwave antennas - Electric impedance - Antenna feeders - Bandwidth - Antenna grounds;

D O I：

10.2528/PIERL14040601

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：

In this letter, a new design of dual-band circularly polarized (CP) slot antenna is proposed. By embedding a vertical stub, a T-shaped strip and a slit to the ground plane, the CPW-fed slot antenna can radiate right-handed circularly polarized (RHCP) wave in two bands 3.0 GHz and 5.0 GHz. The designed antenna with a size of 33 x 27 x 1 mm(3) is fed by a 50-Ohm SMA connector and fabricated on a low-cost FR-4 substrate. Experimental results show that the measured 10-dB return loss impedance bandwidths are 20.4% for the lower band and 23% for the upper band, and the measured 3-dB axial-ratio (AR) bandwidths are 14.1% and 15.8%, with respect to 3 GHz and 5 GHz, respectively.

引用

页码：31 / 36

页数：6

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