A Compact Wideband Dual-Polarized Printed Antenna with Coaxial Feeds for TD-SCDMA Application


In this article, a low-profile wideband dual-polarized planar printed dipole antenna, fed by coaxial lines, is investigated for the TD-SCDMA operation. The antenna is composed of two printed dipoles, two pairs of feeding coaxial lines and a ground. The single-polarized planar printed rectangular dipole and petal dipole, with the similar configuration, are first studied, exhibiting the potential wideband operation. Two petal dipoles are then cross-arranged to design a dual-polarized planar printed antenna, giving a lower profile and a better bandwidth covering the Chinese TD-SCDMA band (1880-2400 MHz). The dual-polarized antenna is simply excited by two pairs of coaxial feeds. Simulated and measured results show that the antenna achieves a common impedance bandwidth of 42% at both ports, good isolation of more than 25 dB, stable radiation patterns and the gain of about 7 dBi over the operating bandwidth.

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Liu, Y. , Tang, W. , Ge, Y. and Li, G. (2015) A Compact Wideband Dual-Polarized Printed Antenna with Coaxial Feeds for TD-SCDMA Application. Wireless Engineering and Technology, 6, 1-8. doi: 10.4236/wet.2015.61001.

Conflicts of Interest

The authors declare no conflicts of interest.


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