DocumentCode
755002
Title
Compact oscillator-type active antenna for UHF RFID reader
Author
Yun, G.
Author_Institution
Dept. of Radio Mobile Commun. Eng., Honam Univ., Gwangju
Volume
43
Issue
6
fYear
2007
Firstpage
3
Lastpage
4
Abstract
A diamond-shaped microstrip ring patch, as a radiator of an oscillator-type active antenna, is proposed for easier impedance matching, smaller patch size, and circular polarisation. The active antenna has been built and measured. The fabricated antenna including the active circuitry has a size about 65% of that using a regular-size square microstrip antenna. Test results show potential possibilities for use as a transmitter of an RFID reader around 915 MHz
Keywords
UHF antennas; active antennas; antenna radiation patterns; impedance matching; microstrip antennas; radio transmitters; radiofrequency identification; UHF RFID reader; active circuitry; circular polarization; compact active antenna; impedance matching; microstrip ring patch; oscillator-type active antenna; small patch size; transmitter;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:20070072
Filename
4138065
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