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A wideband dual‐polarized antenna for 2G/3G/4G mobile communication base station systems is presented in this article. The proposed antenna is composed of two pairs (four) of metal sheets as the main radiation elements. Downward stubs at the end corners of the metal sheets are used to reduce the size of the antenna and for the convenience of tuning. Cylinder with slots is placed at the center of the antenna as balun. Cable is used for the feeding and part of the outer conductor is removed for tuning. An antenna prototype was fabricated. The measured results show that a bandwidth of 53% (1.70–2.95 GHz) for VSWRs < 1.5 is obtained for both polarization ports, which can cover the 2G/3G/4G mobile communication frequency band (1.71–2.69 GHz). The isolation between two ports is larger than 28 dB and the radiation patterns of the antenna are stable over the entire operating frequency band (1.71–2.69 GHz). © 2016 Wiley Periodicals, Inc. Microwave Opt Technol Lett 58:1329–1332, 2016

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Abstract-A compact dual-polarized antenna element integrated with balun is proposed. Two pairs of dipoles are employed for the dual-polarizations of the antenna, and strong mutual coupling between them is introduced to widen the bandwidth of the antenna. Bent dipoles are used to reduce the size of the antenna. The simulated and measured results show that the proposed antenna can cover the bandwidth ranging from 790 MHz to 960 MHz with VSWR < 1.5 and isolation > 26 dB. The antenna element is also fabricated and tested. The measured results show that the antenna can be a good candidate for the design of European Digital Dividend/CDMA800/GSM900 mobile communication base station antenna.

Abstract-A compact dual-band dual-polarized antenna is proposed in this paper. The two pair dipoles with strong end coupling are used for the lower frequency band, and cross-placed patch dipoles are used for the upper frequency band. The ends of the dipoles for lower frequency band are bent to increase the coupling between adjacent dipoles, which can benefit the compactness and bandwidth of the antenna. Breaches are introduced at the ends of the dipoles of the upper band, which also benefit the compactness and matching of the antenna. An antenna prototype was fabricated and measured. The measured results show that the antenna can cover from 790 MHz to 960 MHz (19.4%) for lower band and from 1710 MHz to 2170 MHz (23.7%) for upper band with VSWR < 1.5. It is expected to be a good candidate design for base station antennas.