Improvement of multiple loop antenna for near-field UHF RFID applications

Author

Pansomboon, Rassamitut ; Phongcharoenpanich, Chuwong ; Kawdungta, Supakit

Author_Institution

Fac. of Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand

fYear

2014

fDate

4-6 Aug. 2014

Firstpage

139

Lastpage

140

Abstract

In this paper, the design of multiple loop antenna is presented for near-field UHF radio frequency identification (RFID) applications. The proposed antenna is operated at 920-925 MHz along the standard of the RFID frequency band in Thailand. The antenna can generate the magnetic field distribution in three principal directions in the operating area. The prototype antenna was fabricated on FR4 substrate with overall size of 13.90 cm × 16.10 cm × 0.6 mm. The proposed antenna has a good impedance matching and uniform magnetic field distribution.

Keywords

UHF antennas; impedance matching; loop antennas; magnetic fields; radiofrequency identification; substrate integrated waveguides; FR4 substrate; RFID frequency band; Thailand; frequency 920 MHz to 925 MHz; impedance matching; multiple loop antenna improvement; near-field UHF RFID applications; near-field UHF radio frequency identification applications; uniform magnetic field distribution; Antenna measurements; Directive antennas; Magnetic fields; Microwave antennas; Radiofrequency identification; UHF antennas; Loop antenna; Near-Field; UHF RFID;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetics (iWEM), 2014 IEEE International Workshop on

Conference_Location

Sapporo

Type

conf

DOI

10.1109/iWEM.2014.6963675

Filename

6963675