Design & Simulation of a Compact UWB Microstrip Filtenna

Abstract

In this research paper, design & simulation of a super wide band microstrip patch antenna, a ultrawideband (UWB) microstrip filter and a UWB microstrip filtenna using HFSS vs 15 software have been proposed. Firstly, a rectangular shape monopole patch antenna and a parallel coupled microstrip UWB bandpass filter (BPF) are separately designed. The proposed antenna is designed on a low cost FR4 substrate with height of 1.6mm and loss tangent of 0.02. The antenna is then integrated with UWB bandpass filter. The integrated antenna filter system is called UWB filtering antenna or filtenna. Simulated results in the terms of peak gain and bandwidth for the proposed antenna are obtained 5.9 dBi and 16.9 GHz in the frequency range 3.1 to 20 GHz, respectively. It is seen that the BPF shows the simulated transmission characteristics in the entire UWB band in better extend. The simulated result of the proposed filtenna exhibits better frequency response in UWB range as well as better out of band rejection capability. Compact size and bandwidth of the proposed UWB microstrip filtenna which exhibits better UWB band characteristics are obtained as 15 x 27 mm2 and 7.46 GHz in the frequency range 3.1 to 10.6 GHz, respectively.