Analysis of disk patch antenna with parasitic elements in single and multilayer structures

In this article, the analysis of disk patch antenna with two parasitic elements in single layer and in multilayer layer configurations is presented. The bandwidth of the antenna significantly depends on gap separation (s) and thickness h₂. Bandwidth of the antenna in single-layer gap-coupled structure is found to be 19.01%, and it improves up to 45.57% in multilayer patch. Further, an enhanced radiation of 8.33 dB is achieved in multilayer patch as compared with simple disk patch. The theoretical results obtained from the analysis are compared with IE3D simulated and experimental results, which are in good agreement. © 2010 Wiley Periodicals, Inc. Microwave Opt Technol Lett 52:865–870, 2010; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.25076