Eight Element Antenna Array with Enhanced Bandwidth


  • K. Prahlada Rao Dept. of PG Studies and Research in Applied Electronics, Gulbarga University, Gulbarga, India
  • R.M. Vani University Science Instrumentation Centre, Gulbarga University, Gulbarga, India
  • P.V. Hunagund Dept. of PG Studies and Research in Applied Electronics, Gulbarga University, Gulbarga, India




 Electromagnetic band gap structure, microstrip antenna array, mutual coupling, return loss, silver coating


The paper presents the improvement in the performance of eight element microstrip antenna array. The overall bandwidth of the proposed microstrip antenna array is equal to 262.7 % as compared to 4.98 % of the conventional antenna array. The proposed microstrip antenna array is producing good reduction in mutual coupling values at the resonant frequency of 5.53 GHz. The proposed microstrip antenna array is producing a healthy size reduction of 60.03 %. FR-4 glass epoxy substrate is used as dielectric substrate which has a dielectric constant of 4.2 and loss tangent of 0.0245. The microstrip antenna arrays are designed using Mentor Graphics IE3D simulation software.


Bahl IJ, Bhartia P. Microstrip antennas. Artech House 1980.

Constantine Balanis A. Antenna theory, analysis and design. 2nd ed., John Wiley & Sons, 1997.

Yang F, Rahmat-Sahii Y. Electromagnetic band gap structures in antenna engineering 2009. https://doi.org/10.1017/CBO9780511754531

Miligan TA. Modern antenna design engineering. 1st ed., Mc. Graw Hill 1985.

Reinhold L, Bretchko P. RF circuit design: theory and applications 2009.

Elsheakh DN, Abdallah EA, Iskander MF, Elsadek HA. Microstrip antenna array with new 2D-electromagnetic band gap structure shapes to reduce harmonics and mutual coupling. Progress in Electromagnetic Research C, 2010; 12: 203-213. https://doi.org/10.2528/PIERC09112008

Rajasekhar A, Vara Prasad K. Mutual coupling reduction of microstrip antenna array by using the electromagnetic band gap structures. International Research Journal of Engineering and Technology 2017; 4: 1988-1993.

Rashmi A, Pandhare, Prasanna L, Abegaonkar MP. Miniaturized microstrip antenna array using defected ground structure with enhanced performance. Engineering Science and Technology, an International Journal 2016; 19: 1360- 1367. https://doi.org/10.1016/j.jestch.2016.03.007

Sanjiwani Patil S, Joshi VV. Performance improvement of microstrip antenna using EBG structure. International Journal of Emerging Technology and Advanced Engineering 2015; 5: 74-78.

Shahrokh J, Hossein M. Compact 1°—4 patch antenna array by means of EBG structures with enhanced bandwidth. Microwave and Optical Technology Letters 2016; 58: 2983- 2989. https://doi.org/10.1002/mop.30197

Soroush V, Shahrooz A, Mahsa K, Hedayati. A novel compact defected ground structure and its application in mutual coupling reduction of a microstrip antenna. Turkish Journal of Electrical Engineering and Computer Sciences 2016; 24: 3664-3670. https://doi.org/10.3906/elk-1404-517

Vidya Babare B, Deosarkar SB. Reconfigurable microstrip antenna array. International Journal of Engineering Research and Technology 2013; 2: 2782-2786.