Probe Compensated Single Feed Circularly Polarized Fractal-Shaped Microstrip Antennas

被引：2
|
作者：
Rao, P. Nageswara [1 ]
Sarma, N. V. S. N. [1 ]
机构：
[1] Natl Inst Technol, Dept Elect & Commun Engn, Warangal, Andhra Pradesh, India
来源：
INTERNATIONAL JOURNAL OF RF AND MICROWAVE COMPUTER-AIDED ENGINEERING | 2009年 / 19卷 / 06期
关键词：
fractal boundary; Minkowski; Koch; axial ratio; circular polarization; probe compensation; PATCH ANTENNA; TUNING STUB; DESIGN;
D O I：
10.1002/mmce.20388
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
A single feed circularly polarized fractal boundary microstrip antenna with improved axial ratio bandwidth is presented. The low-axial ratio bandwidth of single feed circularly polarized microstrip antenna is due to its probe reactance. In this article, the inherent disadvantage of this low-AR bandwidth is overcome by compensating the probe reactance by incorporating capacitance in the form of small patch between the radiating patch and the probe. The perturbation of the patch is done using fractal curve as boundary. The proposed antenna exhibits impedance and axial ratio bandwidths of 9 and 2.2% respectively at 2.4 GHz. (C) 2009 Wiley Periodicals, Inc. Int J RF and Microwave CAE 19: 647-656, 2009.
引用
收藏
页码：647 / 656
页数：10
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