Low Cost Dual Polarized Base Station Element for Long Term Evolution

A broadband low profile dual polarized patch antenna for fourth generation long term evolution (4G LTE) is presented in this communication. By employing two wideband feeding mechanisms for the two input ports, a dual polarized patch antenna element with the characteristics of high input port isolati...

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Bibliographic Details
Published in:IEEE transactions on antennas and propagation 2014-11, Vol.62 (11), p.5861-5865
Main Authors: Mak, Ka Ming, Gao, Xia, Lai, Hau Wah
Format: Article
Language:English
Subjects:
Antenna measurements
Baluns
Bandwidth
Dual polarization
Evolution
Gain
Impedance
L-probe
long term evolution (LTE)
low profile
meandering probe
Noise levels
Patch antennas
Ports
Ports (Computers)
Wideband
wideband antenna
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Summary:A broadband low profile dual polarized patch antenna for fourth generation long term evolution (4G LTE) is presented in this communication. By employing two wideband feeding mechanisms for the two input ports, a dual polarized patch antenna element with the characteristics of high input port isolation and wide impedance bandwidth is successfully designed. A wide meandering probe (M-probe) and a pair of twin-L-probes are proposed to feed a patch for dual polarization. The proposed design with a wideband balun has impedance bandwidths of over 47% at the two input ports as well as over 37 dB isolation within the entire operating band. Over 8 dBi gain can be achieved at the two ports.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2014.2347411