Title :
A low-cost, wideband RFID tag antenna on metallic surfaces using proximity-coupled feed
Author :
Jeong, Seung-Hwan ; Son, Hae-Won ; Yeo, Junho
Author_Institution :
Div. of Electron. & Inf. Eng., Chonbuk Nat. Univ., Jeonju, South Korea
Abstract :
A low-cost, wideband antenna for radio frequency identification (RFID) tags mountable on metallic surfaces is presented. A novel proximity-coupled feed structure, in which the direction of the microstrip feedline is parallel to that of the resonant length of the radiating patch and one end of the feedline is shorted to the ground, is proposed to perform simple and wideband impedance matching between an antenna and a tag chip without any additional matching networks. The proposed design is verified by simulation and measurement. The measured 3 dB return loss bandwidth is about 49 MHz, which totally covers the 26 MHz bandwidth requirement in North America.
Keywords :
antenna feeds; broadband antennas; impedance matching; microstrip antennas; microstrip lines; radiofrequency identification; North America; frequency 26 MHz; frequency 49 MHz; gain 3 dB; metallic surfaces; microstrip feedline direction; proximity coupled feed structure; radiating patch resonant length; radio frequency identification; wideband RFID tag antenna; wideband impedance matching; Antenna feeds; Antenna measurements; Bandwidth; Broadband antennas; Impedance matching; Microstrip antennas; RFID tags; Radiofrequency identification; Resonance; Semiconductor device measurement; metal tag; microstrip antenna; radio frequency identification (RFID); tag antenna; wideband antenna;
Conference_Titel :
Microwave Conference, 2009. APMC 2009. Asia Pacific
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-2801-4
Electronic_ISBN :
978-1-4244-2802-1
DOI :
10.1109/APMC.2009.5385470
