Design, Development and Analysis of Aperture monopole patch Antenna for UWB Communication with multiple notched capabilities

Abstract

Abstract Present work illustrate CPW fed apertured monopole patch antenna having multiple interfering bands filtering capabilities. The proposed antenna contains three complementary improved inverted U-shaped slots on the radiating patch to filter out interfering signals namely WiMAX (3.3 to 3.6 GHz), C-band now extended for 5G application (3.7 GHz to 4.2 GHz) and WLAN (5.15 to 5.85 GHz) (combined lower 5.15–5.35 GHz and upper 5.725–5.825 GHz, WLAN). The ground plane is surrounded over the radiator with few modifications on the top corner to enhance impedance matching and hence to obtain optimized overall bandwidth. The projected antenna is made up on substrate of FR-4 (er=4.4) with height of 1.6mm and all the characteristics has been studied with VNA in anechoic chamber environment. The simulated and physically verified responses are in very close treaty to each other. Filtering capability is cross verified with ADS systematic software and lumped-equivalent circuit model also proposed with respective values of all the elements used. Time domain and current distribution analysis has also been undertaken to strengthen the functioning of antenna.