A PHOTONIC SUBSTRATE U-SLOT DUAL BAND PATCH ANTENNA FOR UWB APPLICATIONS

This work deals with the design and fabrication of U-slot antenna based on photonic substrate for radio frequency identification (RFID) and WLAN/Wi-MAX operating in the low microwave frequency range. In this paper, we developed a alphabetical U cut shape microstrip patch antenna for the performance comparison with the normal microstrip patch antenna using the spectrum analyzer. The designed antenna device consists of rectangular microstrip patch antenna for receiving and transmitting purpose. Microstrip patch element is designed on Rogers RT5880 (lossy) substrate of dielectric constant ε= 2.2 and thickness h = 1.575mm on CST antenna designing software. The photonic concept in substrate is achieved by using air holes (radius r1 = 1mm and square lattice constant a = 7mm) in the substrate material. The return loss, radiation pattern & gain of this patch antenna show that it has auspicious characteristics for various wireless communication applications.