Design and Performance Analysis of a Novel Elliptical Microstrip Patch Antenna Targeting Applications in ISM Band

Abstract

The growth of portable wireless communication devices has pushed researchers pay great attention to design miniature compact antennas. The most prized among miniature antenna choices is the microstrip patch antenna. These antennas have significant advantages such as conformability to host surface, light weight, low profile and easy installation. In this paper a novel design of a compact elliptical microstrip patch antenna is proposed for Industrial, Scientific and Medical (ISM) band (2.45GHz) applications e.g., Radio Frequency Identification (RFID) Applications. The proposed antenna consists of elliptical patch on FR-4 (PCB) substrate followed by partial ground at the back of the substrate. The overall size of the proposed antenna is 45×38 mm². It also compares the performance of the designed antenna for four different dielectric materials such as Dacron fabric ( ), Dupont 951( ), Teflon ( ) and Taconic RF-35P ( ) material to investigate their characteristics and performance. After analysis on the different materials, Dacron showed the best performance among all.