Advance in Electronic and Electric Engineering. ISSN 2231-1297, Volume 3, Number 4 (2013), pp. 515-520 © Research India Publications http://www.ripublication.com/aeee.htm Investigation of Circular Microstrip Patch Antenna using the Concept of Artificial Dielectric Mohammed Naseem 1 and Rajan Chaudhary 2 (Electronics Department), Airports Authority of India 2 Department of Electronics and Communication, Future Institute of Engineering and Technology Bareilly, India. Abstract NumerousMicrostrip patch antennas turnedenormouslypopular in mobile and radio wireless communication. This is because of comfort of investigation and fabrication, and their fascinating radiation features. However, they have fewretreats of narrow bandwidth, low efficiency and surface wave losses. In order to get over the restrictions of microstrip antennas such as lower gain (-6 dB), narrow bandwidth (< 5%), excitation of surface waves etc, a novelsolutiontechnique; Kock W.E, evoked the substitute of conventional dielectric by artificial dielectrics. As substrates has appealedraisingattention. Dissimilarto other techniques, this novelmethodemploys the implicitproperties of dielectric materials to improve microstrip antenna execution. These periodicstructures have the specificcharacteristic of defending the propagation of electromagnetic waves for particular frequencies and directions which are determined by the shape, symmetry, size, and the material used in their building. Few artificial dielectrics structures comprisepatterns engraved in the ground plane, drilled holes in dielectrics, and metallic patches arrangedthroughout microstrip structures. The objectives of this paper are to design, fabricate,simulate and the novel artificial dielectrics structure operating at 2.18GHz and 3.17Ghz frequency and examine the functioning of the circular microstrip antenna with and without artificial dielectrics structure. Those designs were simulated with Ansoft HFSS software. Simulated data were compared and counterpointed.