Abstract
Due to their smaller size and light weighted structures patch antennas are frequently now used in GPS transmitters and receivers and throughout modern communication technology. In this paper a miniaturaized patch antenna is presented using stack configuration. Various parameters such as gain, directivity, return loss, efficiency of antenna is demonstrated. Using Air, Teflon, Foam and FR4 (Lossy) as substrates FR4 (lossy) is kept fixed and other substrates are combined one by one to observe response of proposed antenna. The antenna showed dual and tri band response with different combination of mentioned substrates. The proposed antenna has been found useful for W-LAN, GSM, Radio Satellite, Fixed Satellite Services (RSS) & (FSS) and satellite communication systems.