Wideband Loop Antenna with Electronically Switchable Circular Polarization

Article English OPEN
Zhang, Long ; Gao, Steven ; Luo, Qi ; Young, Paul R. ; Li, Qingxia (2016)

This paper presents a novel printed antenna with wide bandwidth, high gain and reconfigurable circular polarizations. A loop antenna is printed on both sides of a dielectric substrate: a dual PIN diode loaded loop is printed on one side while a dual gap loaded smaller loop is printed on the other side. By controlling the ON/OFF states of the PIN diodes, the polarization of the proposed antenna can be switched electronically to right-hand circular polarization (RHCP) or left-hand circular polarization (LHCP) over a wideband frequency range. A prototype is fabricated and measured to verify the performance of the antenna. The measured results indicate that the antenna achieves an impedance bandwidth of over 30%, and a 3-dB axial ratio (AR) bandwidth of 12.7% and 14.9% for RHCP and LHCP, respectively. The measured gain is around 8 dBic for LHCP state and 7 dBic for RHCP state. Due to advantages of wide overlapped bandwidth, simple feeding structure and high gain, this antenna is promising for applications in dual-CP wireless communication systems.
  • References (17)
    17 references, page 1 of 2

    [1] F. Yang and Y. Rahmat-Samii, "A reconfigurable patch antenna using switchable slots for circular polarization diversity," Microw. Opt. Technol. Lett, vol. 12, pp. 96-98, 2002.

    [2] S. Gao, A. Sambell, and S. Zhong, "Polarization-agile antennas," IEEE Antennas Propag. Mag., vol. 48, pp. 28-37, 2006.

    [3] P.-Y. Qin, Y. Guo, and C.-H. Liang, "Effect of antenna polarization diversity on MIMO system capacity," IEEE Antennas Wireless Propag. Lett., vol. 9, pp. 1092-1095, 2010.

    [4] B. A. Cetiner, E. Akay, E. Sengul, and E. Ayanoglu, "A MIMO system with multifunctional reconfigurable antennas," IEEE Antennas Wireless Propag. Lett., vol. 5, pp. 463-466, 2006.

    [5] S. Gao, Q. Luo, and F. Zhu, Circularly polarized antennas: John Wiley & Sons, 2013.

    [6] P.-Y. Qin, A. R. Weily, Y. Guo, and C.-H. Liang, "Polarization reconfigurable U-slot patch antenna," IEEE Trans. Antennas Propag., vol. 58, pp. 3383-3388, 2010.

    [7] S.-H. Hsu and K. Chang, "A novel reconfigurable microstrip antenna with switchable circular polarization," IEEE Antennas Wireless Propag. Lett., vol. 6, pp. 160-162, 2007.

    [8] A. Khidre, K.-F. Lee, F. Yang, and A. Z. Elsherbeni, "Circular polarization reconfigurable wideband E-shaped patch antenna for wireless applications," IEEE Trans. Antennas Propag., vol. 61, pp. 960-964, 2013.

    [9] S.-L. S. Yang and K.-M. Luk, "A wideband L-probes fed circularly-polarized reconfigurable microstrip patch antenna," IEEE Trans. Antennas Propag., vol. 56, pp. 581-584, 2008.

    [10] H. Scott and V. Fusco, "Polarization agile circular wire loop antenna," IEEE Antennas Wireless Propag. Lett., vol. 1, pp. 64-66, 2002.

  • Similar Research Results (2)
  • Metrics
    views in OpenAIRE
    views in local repository
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    Kent Academic Repository - IRUS-UK 0 73
Share - Bookmark