NI AWR Design Environment
Ultra-high-frequency (UHF) radio-frequency identification (RFID) tag antennas, commonly used for inventory and tracking, need to be inexpensive, compact, and robust for the environment in which they will be installed. New antenna synthesis tools have proven very effective in the design of antennas for a wide variety of applications. Now these tools are being applied to overcome the challenges of designing RFID tag antennas. This article describes how the AntSyn antenna synthesis and optimization tool, along with the NI AWR Design Environment, are employed to combat these challenges. It also presents an example RFID tag antenna created with this technology.