Input impedance, bandwidth and efficiency of an edge modulated microstrip antenna

被引：1
|
作者：
Khanra, DN [1 ]
Chowdhury, SK
Mallick, AK
机构：
[1] VS Mahavidyalaya, Dept Phys, Manikpara 721513, India
[2] Jadavpur Univ, Dept Elect & Telecommun Engn, Calcutta 700032, W Bengal, India
[3] Indian Inst Technol, Dept Elect & Elect Commun Engn, Kharagpur 721302, W Bengal, India
来源：
IETE JOURNAL OF RESEARCH | 1998年 / 44卷 / 1-2期
关键词：
input impedance; bandwidth; edge-modulated; microstrip antenna;
D O I：
10.1080/03772063.1998.11416029
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：
A sinusoidally edge-modulated microstrip patch antenna has been analysed using the modal expansion cavity model. The investigations have been carried out to explore the input impedance, bandwidth and radiation efficiency of the modulated structure against its physical parameters like the modulation depth and periodicity. The simulated results clearly show that the bandwidth increases with modulation depth under certain conditions of excitation. The analysis further shows that the modulated structure provides a lot of flexibility in matching the antenna to the standard feeder lines. Experimental results tally satisfactorily with the theoretical data.
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页码：49 / 60
页数：12
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