This paper presents a new dual-band, dual-polarized 1£4
antenna array design for telecommunication base station. One of
the bands covers global system for mobile communication (GSM)
band, while the other covers both digital communication system
(DCS) and universal mobile telecommunication system (UMTS) bands.
The antenna is based upon an aperture stacked patch layout and
incorporates a simple and novel dual-layered feeding technique to
achieve dual polarized radiation. For feeding the array elements,
a corporate feed network is used. In order to achieve appropriate
matching in both bands, a three-section Chebyshev transformer has
been designed. The proposed antenna shows good port decoupling,
less than ¡30 dB for dual linear polarization over its operating bands.
Peak antenna gains about 11 dBi and 11.6 dBi have been obtained for
lower and upper bands, respectively. The e®ort was directed toward
the design of a single standalone dual-polarized antenna to cover all
three bands.