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Improved polarization purity for circular microstrip antenna with defected patch surface

Published online by Cambridge University Press:  07 October 2014

Abhijyoti Ghosh
Affiliation:
Department of ECE, Mizoram University, Aizawl, Mizoram 796004, India
Sudip Kumar Ghosh
Affiliation:
Department of ECE, Siliguri Institute of Technology, P.O-Sukna, Darjeeling, Siliguri, WB 734009, India. Phone: +91 9434813286
Dia Ghosh
Affiliation:
Department of ECE, Siliguri Institute of Technology, P.O-Sukna, Darjeeling, Siliguri, WB 734009, India. Phone: +91 9434813286
Sudipta Chattopadhyay*
Affiliation:
Department of ECE, Siliguri Institute of Technology, P.O-Sukna, Darjeeling, Siliguri, WB 734009, India. Phone: +91 9434813286
*
Corresponding author: S. Chattopadhyay Email: sudipta_tutun@yahoo.co.in

Abstract

A simple and compact microstrip antenna of circular geometry with circular cut defected patch surface has been proposed for significant suppression of cross-polarized (XP) radiation compared with maximum co-polarized gain without affecting the co-polarized radiation pattern at its dominant mode. This will enhance the polarization purity in the radiation performance of the proposed antenna. About 27–28 dB isolation between co-polarized and XP radiations is achieved with the proposed structure. The present structure is simple and easy to develop commercially. The investigation of the new structure is carried out with a view to eliminate orthogonal resonance, which is generally attributed for high XP radiation from the microstrip patch antenna with conventional circular geometry. Comprehensive study on the resonance and radiation characteristics of the new geometry is presented. The present investigation provides an insightful visualization-based understanding of XP suppression with the present structure.

Type
Research Papers
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2014 

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References

REFERENCES

[1]Kumar, G.; Ray, K. P.: Broadband Microstrip Antennas, Artech House, Norwood, Mass, USA, 2003.Google Scholar
[2]Huynh, T.; Lee, K. F.; Lee, R. Q.: Cross-polarization characteristics of rectangular patch antennas. Electron. Lett., 24 (1988), 463464.CrossRefGoogle Scholar
[3]Lee, K. F.; Luk, K. M.; Tam, P. Y.: Cross-polarization characteristics of circular patch antennas. Electron. Lett., 28 (1992), 587589.CrossRefGoogle Scholar
[4]Garg, R.; Bhartia, P.; Bahl, I.; Ittipiboon, A.: Microstrip Antenna Design Handbook, Artech House, Norwood, USA, 2001.Google Scholar
[5]Chen, Z. N.; Michael, Y. W. C.: Broad-band suspended probe-fed plate antenna with low cross-polarization levels. IEEE Trans. Antennas Propag., 51 (2003), 345346.CrossRefGoogle Scholar
[6]Petosa, A.; Ittipiboon, A.; Gagnon, N.: Suppression of unwanted probe radiation in wideband probe-fed microstrip patches. Electron. Lett., 35 (1999), 355357.Google Scholar
[7]Schejbal, V.; Kovarik, V. A: Method of cross-polarization reduction. IEEE Antennas Propag. Mag., 48 (2006), 108111.Google Scholar
[8]Li, P.; Lai, H. W.; Luk, K. M.; Lau, K. L.: A wideband patch antenna with cross-polarization suppression. IEEE Antennas Wirel. Propag. Lett., 3 (2004), 211214.Google Scholar
[9]Chen, Z. N.; Chia, M. Y. W.: Broad-band suspended probe-fed plate antenna with low cross-polarization level. IEEE Trans. Antennas Propag., 51 (2003), 345346.CrossRefGoogle Scholar
[10]Wong, K. L.; Tang, C. L.; Chiou, J. Y.: Broad-band probe-fed patch antenna with a W-shaped ground plane. IEEE Trans. Antennas Propag., 50 (2002), 827831.CrossRefGoogle Scholar
[11]Hsu, W. H.; Wong, K. L.: Broad-band probe-fed patch antenna with a U-shaped ground plane for cross-polarization reduction. IEEE Trans. Antennas Propag., 50 (2002), 352355.CrossRefGoogle Scholar
[12]Guha, D.; Biswas, M.; Antar, Y. M. M.: Microstrip patch antenna with defected ground structure for cross polarization suppression. IEEE Antennas Wirel. Propag. Lett., 4 (2005), 455458.Google Scholar
[13]Kumar, C.; Guha, D.: New defected ground structures (DGSs) to reduce cross-polarized radiation of circular microstrip antennas. Applied Electromagnetics Conf. AEMC2009, Kolkata, India, 2009.CrossRefGoogle Scholar
[14]Guha, D.; Kumar, C.; Pal, S.: Improved cross-polarization characteristics of circular microstrip antenna employing arc-shaped defected ground structure (DGS). IEEE Antennas Wirel. Propag. Lett., 8 (2009), 13671369.Google Scholar
[15]Guha, D.; Biswas, S.; Kumar, C.: Annular ring shaped DGS to reduce mutual coupling between two microstrip patches. Applied Electromagnetics Conf. AEMC2009, Kolkata, India, 2009.Google Scholar
[16]Kumar, C.; Guha, D.: A New Look into the Cross-polarized Radiation form of a Circular Microstrip Antenna and Suppression using Dot-shaped DGS. IEEE AP-S Symp., Toronto, 2010.Google Scholar
[17]Kumar, C.; Guha, D.: Nature of cross-polarized radiation from probe-fed circular microstrip antennas and their suppression using different geometries of defected ground structure (DGS). IEEE Trans. Antennas Propag., 60 (2012), 92101.CrossRefGoogle Scholar
[18]High Frequency Structure Simulator v. 14.Google Scholar