Abstract

This paper describes the performance analysis of various feeding approach for wireless microstrip patch antenna i.e for IMT (3G) applications. In this paper, four forms of feeding techniques (Microstrip line feed, coaxial probe feed, proximity coupled feed and aperture coupled feed) are used. From the four feeding techniques, microstrip line and coaxial probe feeds are contacting schemes, in which RF power is fed immediately to the radiating patch the use of a connecting detail along with a microstrip line whereas proximity and aperture coupled feeds are non-contacting schemes, in which electromagnetic discipline coupling is carried out to transfer power among the microstrip line and the radiating patch. This work describes four feeding strategies and gives a higher understanding of design parameters of an antenna and their impact on go back losses, bandwidth, VSWR and resonant frequency.