Title :
Dual-polarized broadband dipole
Author :
Perruisseau-Carrier, Julien ; Hee, T.W. ; Hall, P.S.
Author_Institution :
Lab. d´´Electromagn. et d´´Acoust., Ecole Polytech. Fed. de Lausanne, Switzerland
fDate :
6/25/1905 12:00:00 AM
Abstract :
A dual-polarized, broadband antenna made up of two single-polarized dipoles is presented. The antenna is mounted on a ground plane to produce a low-profile structure. Two fractal-like elements are used, but a very wide bandwidth is only achieved by making adjustments to the shape to reduce the coupling between the two polarizations. The resulting improved element exhibits an input return loss better than -10 dB over a 1:3.5 band. The isolation is better than about -30 dB, and the radiation characteristics are satisfactory within the bandwidth.
Keywords :
UHF antennas; antenna radiation patterns; broadband antennas; dipole antennas; electromagnetic coupling; electromagnetic wave polarisation; fractals; microwave antennas; 1 to 4.5 GHz; EM coupling reduction; broadband antenna; dual-polarized broadband dipole antenna; fractal-like elements; ground plane; radiation characteristics; radiation patterns; return loss; Antenna feeds; Antenna measurements; Bandwidth; Broadband antennas; Coaxial components; Dipole antennas; Fractals; Polarization; Reflector antennas; Shape;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2004.824165
