Analysis and design of a metal-backed RFID tag antenna

摘要

In this paper, an improved metal-backed RFID tag antenna is presented. The proposed antenna is designed to operate at 915 MHz with MONZA3 RFID chip. Ground material effect is studied for different material cases. The designed antenna achieves very good radiation characteristics with directive main lobe, and good impedance matching, which makes it suitable for metal-objects RFID applications.