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Defected Ground Structured Microstrip Patch Antenna with Quad L – Shaped Slot for Gain Enhancement at 4.8 GHz Frequency

G. Viswanadh Raviteja, Inkulu Lakshman, B. Yogita Sai Sruthi, B. Manish Kumar, K. Sarojini Anuradha. Published in Circuits and Systems.

Communications on Applied Electronics
Year of Publication: 2018
Publisher: Foundation of Computer Science (FCS), NY, USA
Authors: G. Viswanadh Raviteja, Inkulu Lakshman, B. Yogita Sai Sruthi, B. Manish Kumar, K. Sarojini Anuradha

Viswanadh G Raviteja, Inkulu Lakshman, Yogita Sai B Sruthi, Manish B Kumar and Sarojini K Anuradha. Defected Ground Structured Microstrip Patch Antenna with Quad L – Shaped Slot for Gain Enhancement at 4.8 GHz Frequency. Communications on Applied Electronics 7(21):1-5, October 2018. BibTeX

	author = {G. Viswanadh Raviteja and Inkulu Lakshman and B. Yogita Sai Sruthi and B. Manish Kumar and K. Sarojini Anuradha},
	title = {Defected Ground Structured Microstrip Patch Antenna with Quad L – Shaped Slot for Gain Enhancement at 4.8 GHz Frequency},
	journal = {Communications on Applied Electronics},
	issue_date = {October 2018},
	volume = {7},
	number = {21},
	month = {Oct},
	year = {2018},
	issn = {2394-4714},
	pages = {1-5},
	numpages = {5},
	url = {},
	doi = {10.5120/cae2018652787},
	publisher = {Foundation of Computer Science (FCS), NY, USA},
	address = {New York, USA}


A microstrip patch antenna with L-shaped slots and defected ground structure is discussed in this paper. This antenna is designed with FR4 epoxy as a substrate having dielectric constant 4.4 and the thickness of the substrate is 1.6mm. A Conventional microstrip patch antenna is first taken into consideration, thereby L shaped slots are cut near to the four edges. In order to further improve the antenna characteristics, the defective ground is considered. The designed antenna is simulated in HFSS software. The performance parameters of the antenna such as Return loss, VSWR and gain are studied, with return loss -36.61 dB, VSWR as 1.03 and gain of 10.28 dB for 4.8442 GHz frequency. Also, comparison of these parameters among conventional antenna, a slotted patch antenna and slotted patch with the defected ground is made and the important findings are tabulated.


  1. Majid, A.F. and Mukhlis, Y., 2017, November. Design of circular ring microstrip patch antenna with an H-shaped slot on the ground plane for WiMAX. In Informatics and Computing (ICIC), 2017 Second International Conference on (pp. 1-7). IEEE.
  2. Kiruthika, R., Shanmuganantham, T. and Gupta, R.K., 2016, December. A fan shaped triple band microstrip patch antenna with DGS for X-band applications. In Control, Instrumentation, Communication and Computational Technologies (ICCICCT), 2016 International Conference on (pp. 292-297). IEEE.
  3. Raviteja, G.V., 2018. Design and analysis of a novel dual trapezoidal slot-based rectangular microstrip antenna for wide area network using WiMax application. Microwave and Optical Technology Letters, 60(4), pp.1057-1060.
  4. Derneryd, A., 1978. A theoretical investigation of the rectangular microstrip antenna element. IEEE Transactions on Antennas and Propagation, 26(4), pp.532-535.
  5. Yang, Z., Zhang, H., Zhou, N. and Wu, B., 2014, August. A dual band U-shaped slot antenna for WLAN and WiMAX applications. In PIERS Proceedings (pp. 1486-1489).
  6. Lee, C.I., Lin, W.C., Lin, Y.T. and Lee, Y.T., 2010, July.A novel H-shaped slot-coupled antenna for the integration of power amplifier. In PIERS Proceedings (pp. 385-389).
  7. Ismail, S.N.S., Rahim, S.K.A., Ibrahim, A., Sabran, M.I. and Mohamad, H., 2015, November. Dual band inverted h-shaped slot monopole antenna for WLAN applications. In Communications (MICC), 2015 IEEE 12th Malaysia International Conference on (pp. 197-200). IEEE.
  8. Lee, K.F., Yang, S.L.S. and Kishk, A.A., 2008. Dual band multiband U-slot patch antennas. IEEE Antennas and Wireless Propagation Letters, 7, pp.645-647.
  9. Raviteja, G.V., An X-Band based 2 X 1 Microstrip Antenna Array with Combined H and Dual U Slot Design Operating at 11 GHz Frequency. Communications, 7, pp.15-20.
  10. Rameswarudu, E.S. and Sridevi, P.V., 2016, February. Bandwidth enhancement defected ground structure microstrip patch antenna for K and Ka band applications. In Advances in Electrical, Electronics, Information, Communication and Bio-Informatics (AEEICB), 2016 2nd International Conference on (pp. 407-410). IEEE.
  11. Belekar, V.M., Mukherji, P. and Pote, M., 2017, March. Improved microstrip patch antenna with enhanced bandwidth, efficiency and reduced return loss using DGS. In Wireless Communications, Signal Processing and Networking (WiSPNET), 2017 International Conference on (pp. 2471-2474). IEEE.
  12. Upadhyay, D. and Dwivedi, R.P., 2014, September. Antenna miniaturization techniques for wireless applications. In Wireless and Optical Communications Networks (WOCN), 2014 Eleventh International Conference on (pp. 1-4). IEEE.
  13. Kaur, N. and Sivia, J.S., 2016, May. On the design defected ground plane based L slotted microstrip patch antenna for C band applications. In Research Advances in Integrated Navigation Systems (RAINS), International Conference on (pp. 1-4). IEEE.


Patch antenna, L slots, defected ground structure, truncated ground, C band applications.