Design Analysis and Performance Comparison of Microstrip and CPW Antenna at UHF Band

摘要

Microwave-frequency signals are conveyed by using the Microstrip antennas. It is capable of dual and triple frequency operations and has light weight and low cost. Similarly, larger bandwidth can be achieved by Coplanar Waveguide (CPW) structure. Gain can be enhanced using the Defected Ground Structure (DGS). This paper presents the performance comparison of the design of a microstrip antenna and the coplanar waveguide antenna at the frequencies of 900MHz and 2.4GHz. This is used for the RFID short – range reading applications.