Abstract

In general, antenna is designed for transmit or receive electromagnetic waves. Among different kinds of antenna Microstrip patch antenna is most widely used antenna because of its low profile, easy fabrication and inexpensive. The microstrip patch antenna has another advantage that it can be designed for any shape. There are four different shapes are taken for this analysis. But the major problem with these antennas is narrow bandwidth. In this paper microstrip patch antenna is designed for four different shapes and substrates. The substrate materials are taken according to the dielectric constant values. And the antenna parameters such as gain, directivity, bandwidth and returnloss are variable with different shapes and substrates. Then the antenna parameters are noted and compared using Advanced Design System (ADS) software.