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

fYear

2014

fDate

6-11 July 2014

Firstpage

1682

Lastpage

1683

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6905167

Filename

6905167