Design of Multiband Microstrip Antenna for Wi-MAX Application

The ever increasing demand of communication equipment and the emergence of new technologies require an efficient design of antenna that is of smaller size for wider range of frequency such as Wi-MAX. Because of the various advantages like low profile, ease of integration, low cost etc. microstrip antenna found vast application in communication system. Here we report the investigation on multiband microstrip patch antenna for Wi-MAX and other wireless application using probe feed technique. Analysis is done on the two different substrate that is the FR-4 and RT Duroid 5880 with dielectric constant 4.3and 2.2 respectively. The antenna is simulated using CST (Computer Simulation Technology) microwave studio v2011 and the antenna parameter like return loss, VSWR, Gain, Bandwidth would be analyzed. The design procedure for multiband microstrip patch antenna for Wi-Max and other wireless application is illustrated.