Practical design of single feed truncated corner microstrip antenna

被引：5

作者：

Niroojazi, M ^{[1
]}

Azarmanesh, MN ^{[1
]}

机构：

[1] Dept Elect Engn, Urmia 57159, Iran

来源：

SECOND ANNUAL CONFERENCE ON COMMUNICATION NETWORKS AND SERVICES RESEARCH, PROCEEDINGS | 2004年

关键词：

microstrip antenna; loss effects; return loss; axial ratio;

D O I：

10.1109/DNSR.2004.1344707

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

In this paper, two samples of direct fed circularly polarized (CP) microstrip antennas at 2.45 GHz printed on different substrates with high and low loss tangent have been reported. A stub is used in feed network to make the frequency with minimum return loss f(r) (resonant frequency) equal to the frequency with minimum axial ratio f(cp) (circular polarization frequency). Effect of losses on the return loss, resonant frequency and their bandwidth are examined. Experimental results of antennas showed the impedance bandwidth (2:1 VSWR) about 49 MHz and 37 MHz for FR4 and RT/Duroid substrates, respectively. Axial ratio of 0.5 dB for low losses antenna and 2.5 dB for high losses antenna are obtained.

引用

页码：25 / 29

页数：5

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