Dual-Band Loop Antenna for UHF RFID and ISM Band

This work presents the development and design of a loop antenna for dual-band RFID applications at 860 - 960 MHz and 2.4 GHz. The antenna is compact and has a loop structure with vias to enhance the radiating efficiency. The antenna performance is simulated using CST Microwave Studio software and the results show good impedance matching, omnidirectional radiation patterns, and reasonable gain and efficiency at both bands. The proposed antenna is suitable for RFID applications.