Paper Title
Performance Enhancement Of Circular Patch By Modified Ground Microstrip Feed Design

This paper described the design of circular microstrip patch antenna operating at 3.8 GHz, suitable for various wireless communication systems covering the 2–12 GHz frequency band, with below -10db return loss. The design and development also focuses on bandwidth enhancement by introduction of modified microstrip feed in circular patch antenna in order to make an ultra wideband (uwb) antenna covering significant bandwidth. Computer Simulation Technology (CST) Microwave Studio is used as an effective tool for 3D electromagnetic simulation of high frequency components. A microstrip structure with modified ground plane is used to feed the antenna structure. The objective of this project is to compare the bandwidth enhancement of a circular patch antenna by introduction of an effective modified microstrip feed design .The simulation result so obtained shows substantial bandwidth enhancement. Then later a simple comparison of circular patch with two different feeding technique, in respect of return loss and impedance bandwidth have been produced.