Survey of Microstrip Patch Antennas for Ultrawideband Applications

Emerging needs of very high data rate have developed for short distance transmissions in recent times. In applications such as wireless monitor, radio diagnosis etc high data rate with low power consumption is needed for efficient working. Ultrawideband (UWB) has been identified as the key technology to achieve high data rates of around 500Mbps. Federal Communications Commission has allotted a 3.1– 10.6 GHz spectrum for UWB. For efficient and effective transmission at such high frequencies suitable antennas are needed. Thus there is a challenge to design such antennas that can work on UWB range. Microstrip patch antenna design has been widely used in UWB as found in the literature survey. In this work, such design efforts by various researchers have been reviewed. On the basis of shape of patch used, obtained observations are tabulated. It has been found that with the optimization of previously proposed designs, application oriented amendments can be achieved. There is a tradeoff between different parameters of antenna such as its size, bandwidth coverage, gain and losses. Different applications on the basis of features that the antenna offers have been highlighted.