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.
References
[1]
Wong, H., Lau, K.L. and Luk, K.M. (2004) Design of Dual-Polarized L-Probe Patch Antenna Arrays with High Isolation. IEEE Transactions on Antennas and Propagation, 52, 45-52. http://dx.doi.org/10.1109/TAP.2003.822402
[2]
Wu, B.Q. and Luk, K.M. (2009) A Broadband Dual-Polarized Magneto-Electric Dipole Antenna with Simple Feeds. IEEE Antennas and Wireless Propagation Letters, 8, 60-63. http://dx.doi.org/10.1109/LAWP.2008.2011656
[3]
Secmen, M. and Hizal, A. (2010) A Dual-Polarized Wide-Band Patch Antenna for Indoor Mobile Communication Applications. Progress in Electromagnetics Research (PIER), 100, 189-200. http://dx.doi.org/10.2528/PIER09112607
[4]
Lian, R.N. and Zheng, S.F. (2014) A Single-Layer Wideband Dual-Polarized Antenna with High Isolation. Progress In Electromagnetics Research C, 49, 115-122. http://dx.doi.org/10.2528/PIERC14031904
[5]
Adrian and Schaubert, D.H. (1987) Dual Aperture-Coupled Microstrip Antenna for Dual or Circular Polarization. Electronics Letters, 23, 1226-1228. http://dx.doi.org/10.1049/el:19870854
[6]
Zhou, Z.W., Yang, S.W. and Nie, Z.P. (2007) A Novel Broadband Printed Dipole Antenna with Low Cross-Polarization. IEEE Transactions on Antennas and Propagation, 55, 3091-3093.
http://dx.doi.org/10.1109/TAP.2007.908570
[7]
Li, R.L., Wu, T. and Pan, B. (2009) Equivalent-Circuit Analysis of a Broadband Printed Dipole with Adjusted Integrated Balun and an Array for Base Station Applications. IEEE Transactions on Antennas and Propagation, 57, 2180-2184. http://dx.doi.org/10.1109/TAP.2009.2021967
[8]
Vallecchi, A. and Gentilli, G.B. (2005) Design of Dual-Polarized Series-Fed Microstrip Arrays with Low Losses and High Polarization Purity. IEEE Transactions on Antennas and Propagation, 53, 1791-1798.
http://dx.doi.org/10.1109/TAP.2005.846732
[9]
Huang, Y.-H. and Zhou, S.-G. (2013) Compact and Wideband Dual-Polarized Antenna with High Isolation for Wireless communication. Progress in Electromagnetics Research Letters, 38, 171-180.
http://dx.doi.org/10.2528/PIERL13020102
[10]
Moradi, K. and Nikmehr, S. (2012) A Dual-Band Dula-Polarized Microstrip Array Antenna for Base Stations. Progress in Electromagnetics Research, 123, 527-541. http://dx.doi.org/10.2528/PIER11111610
