Title :
Binary RFID chip impedance measurement for UHF tag antenna design
Author :
Hongbin Ge ; Yuan Yao ; Junsheng Yu ; Xiaodong Chen
Author_Institution :
Sch. of Electron. Eng., BUPT, Beijing, China
Abstract :
In this paper, a novel experimental solution for the characterization of the binary input impedance of Ultra High Frequency (UHF) band Radio Frequency Identification (RFID) transponder chip is presented. The proposed method is easy to setup using common test instruments. The tag chip is directly soldered to a 50-Ω subminiature A (SMA) connector, and then connected to a vector network analyzer (VNA) and a RFID emulator through a three ports power divider. The impedances measurement results with respect to frequency and input power on the chip are useful in practical RFID applications for optimal tag antenna design in order to enhance the entire RFID system performance.
Keywords :
UHF antennas; electric impedance measurement; power dividers; radiofrequency identification; transponders; RFID emulator; UHF tag antenna design; VNA; binary RFID chip impedance measurement; binary input impedance characterization; common test instruments; optimal tag antenna design; subminiature A connector; tag chip; three-port power divider; ultrahigh-frequency band radiofrequency identification transponder chip; vector network analyzer; Antenna measurements; Frequency measurement; Impedance; Impedance measurement; Radiofrequency identification; Semiconductor device measurement; UHF measurements;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE
Conference_Location :
Memphis, TN
Print_ISBN :
978-1-4799-3538-3
DOI :
10.1109/APS.2014.6905167
