Title :
A Novel Reconfigurable Wideband Circularly Polarized Transmitter Implemented by Indirect-Controlled-Phased-Source
Author :
Wan, Kwun-Chiu ; Xue, Quan
Author_Institution :
Hong Kong City Univ., Kowloon
fDate :
6/29/1905 12:00:00 AM
Abstract :
A novel reconfigurable circularly polarized (CP) transmitter implemented by the indirect-controlled-phased-source (ICPS) technique is proposed. The proposed transmitter has the advantages of switchable polarization and wide axial ratio bandwidth. A wideband CP transmitter, with a bandwidth of 31.33% ranging from 700 to 960 MHz, is demonstrated by integrating a dual L-probe-fed patch antenna and two ICPS elements. The simulation and experimental results are presented and show good agreement.
Keywords :
antenna feeds; broadband antennas; electromagnetic wave polarisation; microstrip antennas; transmitting antennas; dual L-probe-fed patch antenna; frequency 700 MHz to 960 MHz; indirect-controlled-phased-source technique; reconfigurable wideband circularly polarized transmitter; switchable polarization; wide axial ratio bandwidth; Bandwidth; Capacitors; Frequency; Patch antennas; Phase locked loops; Phase shifters; Polarization; Radio transmitters; Radiofrequency identification; Wideband; Phase control; phase control; phase locked loops; phase shifters; phase-locked loops (PLLs); phased arrays;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.913326
