Design and Analysis of UWB Microstrip Patch Antenna

In this project we have proposed a CPW-Fed Microstrip patch antenna which is specially designed for UWB applications. Antenna rectangular slot is considered for this design. CPW is the feeding comprising of a side-plane conductor as ground and a center strip carrying the signal. This slot works as a radiator. The bandwidth of proposed antenna resides in the band of UWB specified by FCC for commercial use range from 3.1 GHz to 10.6 GHz. But we have excluded a small range of bandwidth approximately 5.1-6 GHz which is the bandwidth for WLAN signals so that this antenna works fluently in the ultra wide band gap without any interference in WLAN frequencies. First, a conventional rectangular slot antenna is designed and then the rectangular shape is modified by a self-inverted configuration to achieve higher bandwidth. To improve the gain and efficiency, modification has been done. Primary aim throughout this project tenure was to achieve maximum S - parameter frequencies below -10 db in order to get best efficiency. The antenna was designed and simulated using Zeland IE3D for the results of return loss, gain, efficiency, radiation pattern (2D & 3D),current view in the antenna, total field and s - parameter. All the modifications of the design were also done on the same software.