Hostname: page-component-cd9895bd7-hc48f Total loading time: 0 Render date: 2024-12-24T00:41:16.340Z Has data issue: false hasContentIssue false
  • English
  • Français

A bottom-feed omni-directional circularly polarized antenna array

Published online by Cambridge University Press:  31 May 2019

Xi Li ,
Lin Yang ,
Jia-Wei Zhao ,
Yi Liu  and
Fang-Zhou Sun
Xi Li*
Affiliation:
Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi'an, Shaanxi 710071, People's Republic of China
Lin Yang
Affiliation:
Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi'an, Shaanxi 710071, People's Republic of China
Jia-Wei Zhao
Affiliation:
Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi'an, Shaanxi 710071, People's Republic of China Twentith Research Institute of China Electronics Technology Group Corporation, No 1, Baisha Road, Yanta District, Xi'an City, Shaanxi Province, China
Yi Liu
Affiliation:
Science and Technology on Antenna and Microwave Laboratory, Xidian University, Xi'an, Shaanxi 710071, People's Republic of China
Fang-Zhou Sun
Affiliation:
Twentith Research Institute of China Electronics Technology Group Corporation, No 1, Baisha Road, Yanta District, Xi'an City, Shaanxi Province, China
*
Author for correspondence: Xi Li, E-mail: [email protected]
Get access Rights & Permissions [Opens in a new window]

Abstract

A bottom-feed omni-directional CP (circularly polarized) antenna array is proposed in this letter. The antenna array is composed of four elements (two printed ZPS (zero-phase-shift) line loops and two half-wavelength dipoles). The four elements are fed with the same phase and amplitude. The ZPS line loops provide the horizontal polarization while the dipoles provide the vertical polarization. Therefore, omni-directional circular polarization is formed in the far field. The feeding network consists of a 1–4 T-shaped power divider formed by parallel strip lines. In order to balance the amplitude of the feeding coaxial cable, the structure is used in the bottom to transfer parallel strip line to micro-strip line. Besides, the loops and the dipoles are placed on the different side of the network to guarantee the omni-directional radiation property. The measured impedance bandwidth of the fabricated antenna is 0.13 GHz (2.40–2.53 GHz) and the measured maximum CP gain at 2.45 GHz is 4.8 dBic.

Keywords

Bottom feedcircular polarizationhigh-gainomni-directional
Type
Research Papers
Information
International Journal of Microwave and Wireless Technologies , Volume 11 , Issue 10 , December 2019 , pp. 1075 - 1080
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2019 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1.Park, BC and Lee, JH (2011) Omni-directional circularly polarized antenna utilizing zeroth-order resonance of epsilon negative transmission line. IEEE Transactions on Antennas and Propagation 59, 2717–2721.Google Scholar
2.Yu, D, Gong, SX, Wan, YT, Yao, YL, Xu, YX and Wang, FW (2014) Wideband omni-directional circularly polarized antenna based on vortex slots and shorting vias. IEEE Transactions on Antennas and Propagation 62, 3970–3977.Google Scholar
3.Pan, YM, Zheng, SY and Hu, BJ (2014) Wideband and low-profile omni-directional circularly polarized patch antenna. IEEE Transactions on Antennas and Propagation 62, 4347–4351.Google Scholar
4.Li, B, Liao, SW and Xue, Q. Omni-directional circularly polarized antenna combining monopole and loop radiators. IEEE Antennas and Wireless Propagation Letters 12, 607–610.Google Scholar
5.Yu, D, Gong, SX, Wan, YT and Chen, WF. Omni-directional dual-band dual circularly polarized microstrip antenna using TM01 and TM02 modes. IEEE Antennas and Wireless Propagation Letters 12, 607–610.Google Scholar
6.Li, WW and Leung, KM (2013) Omni-directional circularly polarized dielectric resonator antenna with top-loaded Alford loop for pattern diversity design. IEEE Transactions on Antennas and Propagation 61, 563–570.Google Scholar
7.Narbudowicz, A, Bao, XL and Ammann, MJ (2012) Omnidirectional circularly-polarised microstrip patch antenna. Electronics Letters 48, 614–615.Google Scholar
8.Shi, J, Wu, X, Qing, XM and Chen, ZN (2016) An omnidirectional circularly polarized antenna array. IEEE Transactions on Antennas and Propagation 64, 574–581.Google Scholar
9.Cai, YM, Gao, S, Yin, YZ, Li, WT and Luo, Q (2016) Compact size low profile wideband circularly polarized omnidirectional patch antenna with reconfigurable polarization. 64, 2016–2021.Google Scholar
10.Wei, KP, Zhang, ZJ, Feng, ZH and Iskander, MF (2012) A MNG-TL loop antenna array with horizontally polarized omni-directional patterns. IEEE Transactions on Antennas and Propagation 60, 2702–2710.Google Scholar
11.Khalily, M, Kamarudin, MR, Mokayef, M and Jamaluddin, MH (2014) Omni-directional circularly polarized dielectric resonator antenna for 5.2-GHz WLAN applications. IEEE Antennas and Wireless Propagation Letters 13, 443–446.Google Scholar
12.Quan, XL and Li, RL (2013) A broadband dual-polarized omnidirectional antenna for base station. IEEE Transactions on Antennas and Propagation 61, 943–947.Google Scholar
13.Lau, KL and Luk, KM (2006) A wideband circularly polarized conical beam patch antenna. IEEE Transactions on Antennas and Propagation 54, 1591–1594.Google Scholar
14.Dai, XW, Wang, ZY, Liang, CH, Chen, X and Wang, LT (2013) Multiband and dual-polarized omnidirectional antenna for 2G/3G/LTE application. IEEE Antennas and Wireless Propagation Letters 12, 1492–1495.Google Scholar