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IJRSP Vol.40(5) [October 2011] >

Title: Design of broadband circular patch microstrip antenna with diamond shape slot
Authors: Garima
Bhatnagar, D
Saini, J S
Saxena, V K
Joshi, L M
Keywords: Circular patch microstrip antenna
Microstrip antenna
Broadband antenna
Issue Date: Oct-2011
Publisher: NISCAIR-CSIR, India
PACS No.: 84.40.Ba
Abstract: The radiation performance of a circular patch microstrip antenna having a concentric diamond shape slot has been presented in this paper. The side lengths and angles of the inserted diamond shape slot have been optimized to achieve a single layer multi frequency microstrip antenna applicable for C band space communication systems. For simulation work, IE3D simulation software has been applied and later this antenna has been designed and tested by applying glass epoxy FR-4 substrate. The proposed antenna provides much improved bandwidth (measured impedance bandwidth 0.87 GHz or 13.58%) than a conventional circular patch antenna. The gain of proposed antenna is almost constant in the frequency range where broadband performance is realized, however, it is improved considerably in comparison to a conventional circular patch antenna. The performance of proposed antenna has been compared with that of a conventional circular patch antenna having identical patch radius. The measured co and cross polar patterns of proposed antenna at one of the three resonance frequencies have been presented.
Page(s): 275-281
CC License:  CC Attribution-Noncommercial-No Derivative Works 2.5 India
ISSN: 0975-105X (Online); 0367-8393 (Print)
Source:IJRSP Vol.40(5) [October 2011]

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