DocumentCode :
737332
Title :
Dual Circularly-Polarized Patch Antenna Using Even and Odd Feed-Line Modes
Author :
Narbudowicz, Adam ; Xiulong Bao ; Ammann, M.J.
Author_Institution :
Antenna & High Freq. Res. Centre, Dublin Inst. of Technol., Dublin, Ireland
Volume :
61
Issue :
9
fYear :
2013
Firstpage :
4828
Lastpage :
4831
Abstract :
This communication proposes a new patch antenna with dual circularly polarized capability at 2.575 GHz. The design exploits the even and odd modes in a coplanar waveguide transmission line and enables simultaneous right- and left-handed circular polarization, with two individual excitation ports. A patch antenna is fed by multimode transmission line and the advantages and disadvantages are discussed. A prototyped antenna realized up to 20 dB isolation between ports with S21 <; -10 dB bandwidth of 87 MHz. Realized gains for the two modes of operation are 5.77 and 7.23 dBic. The proposed structure is compact and easy to manufacture.
Keywords :
antenna feeds; coplanar waveguides; microstrip antennas; polarisation; telecommunication transmission lines; bandwidth 87 MHz; coplanar waveguide transmission line; dual circularly polarized capability; dual circularly-polarized patch antenna; even feed-line modes; frequency 2.575 GHz; multimode transmission line; odd feed-line modes; right-left handed circular polarization; Antenna feeds; circular polarization; dual polarization; microstrip antennas;
fLanguage :
English
Journal_Title :
Antennas and Propagation, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-926X
Type :
jour
DOI :
10.1109/TAP.2013.2269471
Filename :
6542713
Link To Document :
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