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IJRSP Vol.39 [2010] >
IJRSP Vol.39(2) [April 2010] >

Title: Design and analysis of a gap coupled split circular patch with elliptical slot filled with elliptical patch
Authors: Bhardwaj, Dheeraj
Sharma, Komal
Bhatnagar, D
Sancheti, S
Soni, B
Keywords: Gap coupled antenna
Microstrip antenna
Return loss
Impedance bandwidth
Impedance gain
Issue Date: Apr-2010
Publisher: CSIR
PACS No.: 84.40 Ba; 75.50 Gg
Abstract: The paper presents radiation performance of a gap coupled split circular patch with elliptical slot filled with elliptical patch. Initially, a circular elliptical ring slot antenna is taken and it is modified step by step to achieve an end product with desired performance. The performance of designed antenna after each step is presented systematically. The simulated and measured results of proposed antenna are compared with that of a circular elliptical ring slot antenna. The gap between two gap-coupled semi circular elliptical ring structures and the length of major and minor axis of inserted inner elliptical patch are optimized to achieve best performance. It is observed that with proposed modifications in circular patch geometry, impedance bandwidth, gain and radiation efficiency of antenna are improved considerably. The resonance frequency of end product is lower than that of a circular elliptical ring slot antenna which indicates that for achieving identical resonance frequencies from circular elliptical ring slot antenna and modified circular patch geometry, effective patch size of modified antenna must be reduced. The outcome results into a further compact circular patch antenna with much improved performance.
Page(s): 107-113
ISSN: 0975-105X (Online); 0367-8393 (Print)
Source:IJRSP Vol.39(2) [April 2010]

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