Title :
Metamaterial-line based feed-networks for wideband circularly polarized antennas
Author :
Chung, Kwok L. ; Sun, X.L. ; Zhang, J. ; Zhu, Hailiang ; Cheung, S.W. ; Yuk, T.I.
Author_Institution :
Dept. of Electr. & Electron. Eng., Univ. of Hong Kong, Hong Kong, China
Abstract :
This paper presents a number of metamaterial-line based feed-networks for wideband circularly polarized (CP) antennas. These feed-networks were designed and fabricated using lumped-element integrated microstrip transmission-lines that were synthesized by using metamaterial transmission-line concept. Design examples for dual-fed, triple-fed and four-element CP antennas are demonstrated. Excellent performance and reduced substrate sizes were achieved.
Keywords :
metamaterial antennas; microstrip antennas; polarisation; dual-fed CP antenna; four-element CP antenna; lumped-element integrated microstrip transmission-lines; metamaterial-line based feed-networks; triple-fed CP antenna; wideband circularly polarized antenna; Antenna feeds; Broadband antennas; Metamaterials; Microstrip; Wideband;
Conference_Titel :
Antennas and Propagation Society International Symposium (APSURSI), 2012 IEEE
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4673-0461-0
DOI :
10.1109/APS.2012.6348479
