Title :
A tunable antenna-filter module for simultaneous UHF RFID-based power facility monitoring and partial discharge measurement
Author :
Cheong, Pedro ; Lam, Sam Ngai ; Qui, Yao Quan ; Choi, Wai Wa ; Tam, Kam Weng
Author_Institution :
Wireless Commun. Lab., Univ. of Macau, Macao, China
Abstract :
In this paper, a tunable microstrip antenna-filter is proposed based on a double U-shaped defected ground structure (DGS) and compact tunable square-loop dual-mode bandpass filter using capacitively loaded resonator. The antenna structure consists of a simple trapezoid monopole with a DGS microstrip feedline for excitation and this also yields a broaden impedance bandwidth covering 0.8 GHz to 2 GHz for UHF RFID operation and electromagnetic emission of partial discharge of traditional power facilities. In addition, the capacitively stepped impedance resonator of the filter allows frequency tuning between 1.2 and 1.6 GHz so as to steer the principal emission detection of partial discharge.
Keywords :
band-pass filters; condition monitoring; defected ground structures; microstrip antennas; microstrip filters; partial discharge measurement; power plants; radiofrequency identification; resonator filters; bandwidth 0.8 GHz to 2 GHz; defected ground structure; dual-mode bandpass filter; microstrip antenna-filter module; partial discharge measurement; power facility monitoring; simultaneous UHF RFID; stepped impedance resonator; Antenna measurements; Band pass filters; Microstrip antennas; Partial discharges; Radiofrequency identification; Tuning; UHF antennas;
Conference_Titel :
Applications of Electromagnetism and Student Innovation Competition Awards (AEM2C), 2010 International Conference on
Conference_Location :
Taipei
Print_ISBN :
978-1-4244-6416-6
DOI :
10.1109/AEM2C.2010.5578752
