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Design of Dual Band Rectangular Microstrip Antenna with C-Shaped Defected Ground Structure

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International Journal of Computer Applications
© 2014 by IJCA Journal
Volume 90 - Number 1
Year of Publication: 2014
Authors:
Gurpreet Singh
Ranjit Singh Momi
Deepak Kumar Syal
10.5120/15538-4211

Gurpreet Singh, Ranjit Singh Momi and Deepak Kumar Syal. Article: Design of Dual Band Rectangular Microstrip Antenna with C-Shaped Defected Ground Structure. International Journal of Computer Applications 90(1):15-18, March 2014. Full text available. BibTeX

@article{key:article,
	author = {Gurpreet Singh and Ranjit Singh Momi and Deepak Kumar Syal},
	title = {Article: Design of Dual Band Rectangular Microstrip Antenna with C-Shaped Defected Ground Structure},
	journal = {International Journal of Computer Applications},
	year = {2014},
	volume = {90},
	number = {1},
	pages = {15-18},
	month = {March},
	note = {Full text available}
}

Abstract

In this research paper, the design of C-shaped Defected Ground Structure (DGS) antenna is proposed to realize dual-band characteristics for C-band and X-band applications. The proposed antenna consists of C-shaped slot incorporated in ground plane which resonates at two different frequencies (fr1 and fr2) of 7. 41 GHz and 9. 28 GHz which lie in C-band and X-band respectively. A very good return loss (S11) of -30. 79 dB and -40. 75 dB are obtained at first and second resonant frequencies respectively for C-shaped DGS antenna. The Bandwidth of C-shaped DGS antenna is increased by 825 MHz and 1182. 8 MHz respectively at two different bands than the bandwidth of the Conventional Rectangular Microstrip Patch Antenna (CRMPA). Also VSWR is much improved with C-shaped DGS antenna. The comparison of simulated results of proposed and CRMPA has also been presented in this paper. The main contribution of this paper is the miniaturization of ground plane of 23% using C-shaped DGS which is very much encouraging.

References

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