Hexagonal Nonradiating Edge-Coupled Patch Configuration for Bandwidth Enhancement of Patch Antenna

  IJETT-book-cover  International Journal of Engineering Trends and Technology (IJETT)          
© 2014 by IJETT Journal
Volume-11 Number-5
Year of Publication : 2014
Authors : Krishn Kant Joshi , NVSN Sarma


Krishn Kant Joshi , NVSN Sarma . "Hexagonal Nonradiating Edge-Coupled Patch Configuration for Bandwidth Enhancement of Patch Antenna", International Journal of Engineering Trends and Technology (IJETT), V11(5),231-236 May 2014. ISSN:2231-5381. www.ijettjournal.org. published by seventh sense research group


For increasing the impedance bandwidth of patch antenna two novel configurations are described for the ISM band applications. A hexagonal patch structure is used in both of the configurations. First structure uses six additional patches which are gap-coupled to the each nonradiating edge of the original hexagonal patch whereas in the second configuration fractals are used in each of the hexagonal of first order. HFSS is used for the simulation. The simulation result shows that with a regular hexagonal patch which gives 6% of impedance bandwidth, a slight improvement in bandwidth with respect to square patch can be achieved. Further with the two novel configurations up to 15.5% of the impedance is achieved. The result shows that the fractal configuration is suitable for the circularly polarized radiation. The simulated gain over the operating band is found to be more than 9-dB.


[1] Constantine A. Balanis, “Antenna Theory Analysis and Design,” A John Wiley & Sons, Inc., Publication.
[2] A. Mitchell, M. Lechm, D.M. Kokotoff, and R. B. Waterhouse, “Search for High-Performance Probe-Fed Stacked Patches Using Optimization,” IEEE Trans. Antennas Propag., vol. 51, no. 2, pp. 249–255, Feb. 2003.
[3] W.S.T. Rowe, and R.B. Waterhouse, “Broadband CPW Fed Stacked Patch Antenna,” Electron. Lett., vol. 35, no. 9, pp. 681–682, Apr. 1999.
[4] Aliakbar Dastranj, and Habibollah Abiri, “Bandwidth Enhancement of Printed E-Shaped Slot Antennas Fed by CPW and Microstrip Line,” IEEE Trans.Antennas Propag, vol. 58, no. 4, Apr. 2010.
[5] C. Wood, "Improved bandwidth of microstrip antennas using parasitic elements," Microwaves, Optics and Antennas, IEE Proceedings, vol.127, no.4, pp. 231-234, Aug. 1980.
[6] G. Kumar, and K.C. Gupta, "Broad-band Microstrip Antennas Using Additional Resonators Gap-coupled to the Radiating Edges,” IEEE Trans. Antennas Propag., vol.32, no.12, pp. 1375-1379, Dec. 1984.
[7] G. Kumar, and K.C Gupta, “Nonradiating Edges and Four Edges Gap-Coupled Multiple Resonator Broad-Band Microstrip Antennas” IEEE Trans Antennas Propag.,vol A.P- 33 no.-2 Fed 1985.
[8] P.B. Parmar, B.J. Makwana, and M.A. Jajal, "Bandwidth Enhancement of Microstrip Patch Antenna Using Parasitic Patch Configuration," International Conference on Communication Systems and Network Technologies (CSNT), pp. 53-57, May. 2012.
[9] J. Anguera, C. Puente, C. Bojra, and J. Soler, “Fractal-shaped antennas: A review,” Encyclopedia of RF and M. Eng., vol. 2, pp. 1620-1635, 2005.
[10] Krishn Kant Joshi and NVSN Sarma “Bandwidth Enhancement for Patch Antenna with Edge-coupled parasitic Fractal Patch Configurations” 30th Annual Review of Progress in Applied Computational Electromagnetics, March 23-27, 2014 –Jacksonville, FL ©2014 ACS.

Hexagonal patch, Edge gap-coupled, Parasitic patch, Return loss, Impedance bandwidth, Fractal.