volume | PIER Journals

Abstract

A novel broadband horizontally polarized (HP) omnidirectional planar antenna is developed for mobile communications. The proposed antenna consists of four printed arc dipoles that form a circular loop for HP omnidirectional radiation. A broadband feeding network which includes four broadband baluns and an impedance matching circuit is designed to excite the four arc dipoles. An eight-element linear antenna array is developed for 2G/3G base stations. A broadband power divider is used to feed the antenna array. Experimental results show that the HP omnidirectional antenna element has a bandwidth of 31% (1.66-2.27 GHz) while its array has a bandwidth of 34% (1.67-2.35 GHz) and an omnidirectional antenna gain of ~8 dBi. Both of the antenna element and its array have good omnidirectivity over the 10-dB return loss bandwidth. Simulated and measured results for the antenna element and its array are presented.

1. Secmen, M. and A. Hizal, "A dual-polarization wide-band patch antenna for indoor mobile communication applications," Progress In Electromagnetics Research, Vol. 100, 189-200, 2010.
doi:10.2528/PIER09112607 Google Scholar

2. Tze-Meng, O. and T. K. Geok, "A dual-band omni-directional microstrip antenna," Progress In Electromagnetics Research, Vol. 106, 363-376, 2010.
doi:10.2528/PIER10052411 Google Scholar

3. Chen, A., T. Jiang, Z. Chen, and D. Su, "A novel low-profile wideband UHF antenna," Progress In Electromagnetics Research, Vol. 121, 75-88, 2011.
doi:10.2528/PIER11081302 Google Scholar

4. Xu, H.-Y., H. Zhang, K. Lu, and X. F. Zeng, "A holly-lesf-shaped monopole antenna with low RCS for UWB application," Progress In Electromagnetics Research, Vol. 117, 30-50, 2011. Google Scholar

5. Judasz, T. J. and B. B. Balsley, "Improved theoretical and experimental models for the coaxial colinear antenna," IEEE Trans. on Antennas Propag., Vol. 31, No. 3, 289-296, Mar. 1989.
doi:10.1109/8.18724 Google Scholar

6. Sierra-Perez, M., F. L. Heras-Andres, and J. A. G. de Lope, "Low-cost printed collinear array antenna," IEEE Antennas and Propagation Magazine., Vol. 57, No. 1, 23-30, 2001.
doi:10.1109/74.979364 Google Scholar

7. Balanis, C. A., Antenna Theory Analysis and Design, 246-255, 3rd Edition, Tempe, AZ, 2005.

8. Chiu, C.-W. and C.-H. Chang, "Multiband folded loop antenna for smart phones," Progress In Electromagnetics Research, Vol. 102, 213-226, 2010.
doi:10.2528/PIER10011601 Google Scholar

9. Ando, A., A. Kondo, and S. Kubota, "A study of radio zone length of dual-polarized omnidirectional antennas mounted on rooftop for personal handy-phone system," IEEE Trans. on Vech. Tech., Vol. 57, No. 1, 2-10, 2008.
doi:10.1109/TVT.2007.905432 Google Scholar

10. Ando, A., K. Cho, and T. Hori, "Dielectric-loaded slotted-cylinder antennas offering reduced base station interference for personal communication services," IEEE Antennas and Propagation Society International Symposium, Vol. 3, 1454-1457, 1998. Google Scholar

11. Iigusa, K. and M. Tanaka, "A horizontally polarized slot-array antenna on a coaxial cylinder," Asia-Pacific Microwave Conference, 1444-1447, 2000. Google Scholar

12. Phongcharoenpanich, C., P. Wounchourn, S. Kosulvit, and M. Krainiksh, "A horizontally polarized omnidirectional beam antenna using array of axial slot on cylindrical surface," The 3rd International Conference on Microwave and Millimeter Wave Technology, 576-579, 2002. Google Scholar

13. Alford, A. and A. G. Kandoian, "Ultra-high frequency loop antenn," Trans. on AIEE, Vol. 59, 843-848, 1940. Google Scholar

14. Chuang, H. R., "Omni-directional horizontally polarized Alford loop strip antenna,", US Patent 5767809, Jun. 16,1998. Google Scholar

15. Nakano, H., R. Satake, and J. Yamauchi, "Horizontally polarized,omnidirectional antenna with a single feed," IEEE International Conference on Wireless Information Technology and Systems(ICWITS), 2011. Google Scholar

16. Nakano, H., R. Satake, and J. Yamauchi, "Realization of a horizontally polarized, low-profile, omnidirectional antenna with an EBG reflector," Proceedings of the Fourth European Conference on Antennas and Propagation (EuCAP), 2011. Google Scholar

17. Jiang, C., X.-W. Dai, and Y.-C. Jiao, "A novel compact horizontally polarized omnidirectional antenna," International Symposium on Signals Systems and Electronics (ISSSE), 2010. Google Scholar

18. Lin, C.-C., L.-C. Kuo, and H.-R. Chuang, "A horizontally po-larized omnidirectional printed antenna for WLAN applications," IEEE Trans. on Antennas and Propag., Vol. 54, No. 11, 3551-3556, 2006.
doi:10.1109/TAP.2006.884307 Google Scholar

19. Ahn, C.-H., S.-W. Oh, and K. Chang, "A dual-frequency omnidirectional antenna for polarization diversity of MIMO and wireless communication applications," IEEE Antennas Wireless Propag. Lett., Vol. 8, 966-969, 2009. Google Scholar

20. Fenn, A., "Arrays of horizontally polarized loop-fed slotted cylinder antennas," IEEE Trans. on Antennas Propag., Vol. 33, No. 4, 375-382, 1985.
doi:10.1109/TAP.1985.1143597 Google Scholar

21. Wu, B. Q. and K.-M. Luk, "A wideband low-profile conical beam antenna with horizontal polarization," Asia Pacific Microwave Conference, 1806-1808, 2009.
doi:10.1109/APMC.2009.5384138 Google Scholar

22. Morrow, J. D., "Polarization-adjustable omnidirectional dipole array," IEEE Antennas Wireless Propag. Lett., Vol. 2, 223-225, 2003.
doi:10.1109/LAWP.2003.819662 Google Scholar

23. Borja, A. L., P. S. Hall, L. Qing, and H. Iizuka, "Omnidirectional loop antenna with left-handed loading," IEEE Antennas Wireless Propag. Lett., Vol. 6, 495-498, 2007.
doi:10.1109/LAWP.2007.905016 Google Scholar

24. Edward, B. and D. Rees, "A broadband printed dipole with integrated balun," Microwave J., 339-344, May 1987. Google Scholar

25. Li, R. L., T. Wu, B. Pan, K. Lim, J. Laskar, and M. M. Tentzeris, "Equivalent-circuit analysis of a broadband printed dipole with adjusted integrated balun and array for base station applications," IEEE Trans. on Antennas and Propag., Vol. 57, 2180-2184, Jul. 2009. Google Scholar

Dr. Xu Lin Quan

Prof. Rong-Lin Li

Dr. Jian Ye Wang

Dr. Yue Hui Cui