A New Dual-Band, Dual-Polarized and Single Feed Reconfigurable Antenna
Keywords:
Annular-ring slot antenna, dual-band, dual-polarized, reconfigurable antennaAbstract
In this paper, a new single feed reconfigurable annular-ring slot antenna for polarization and frequency diversity for WLAN and WiMAX applications is proposed. This antenna has a simple structure; it contains two concentric circular slots, and four tuning stubs on one side of the substrate, and a 50 ? microstrip feed line and two stubs on the other side. The proposed antenna can be switched between two resonant frequencies, 2.4 GHz (WLAN) and 3.5 GHz (WiMAX). Furthermore, it can be switched between left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP) at both resonant frequencies. Using seven switches (PIN diode), on both sides of the substrate. Details of the antenna design are shown and the results are also exhibited and discussed. Simulation and experimental results indicate that the proposed antenna demonstrates a good impedance bandwidth at the two resonant frequencies, and satisfactory axial ratios in the circularly polarized states.
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References
C. A. Balanis, Antenna Theory Analysis and Design, 3 rd ed., Wiley, 2005.
Y. B. Chen, T. B. Chen, Y. C. Jiao, and F. S. Zhang, “A reconfigurable microstrip antenna with switchable polarization,” Journal of Electromagnetic Waves and Applications, vol. 20, no. 10, pp. 1391-1398, 2006.
M. T. Zhang, Y. B. Chen, Y. C. Jiao, and F. S. Zhang, “Dual circularly polarized antenna of compact structure for RFID application,” Journal of Electromagnetic Waves and Applications, vol. 20, no. 14, pp. 1895-1900, 2006.
K. Chung, Y. Nam, T. Yan, and J. Chio, “Reconfigurable microstrip patch antenna with switchable polarization, ETRI Journal, no. 3, pp. 379-382, June 28, 2006.
N. Jin, F. Yang, and Y. Rahmat Samii, “A novel patch antenna with switchable slot (PASS): dualfrequency operation with reversed circular polarizations,” IEEE Trans. Antennas Propag., vol. 54, no. 3, pp. 1031-1034, Mar. 2006.
Y. J. Sung, “Reconfigurable patch antenna for polarization diversity,” IEEE Trans. Antennas Propag., vol. 56, no. 9, pp. 3053-3054, Sep. 2008.
D. H. Hyun, J. W. Baik, S. H. Lee, and Y. S. Kim, “Reconfigurable microstrip antenna with polarization diversity,” Electronics Letters, vol. 44, no. 8, pp. 509-510, Apr. 10, 2008.
S. Rezvani, Z. Atlasbaf, and K. A. Forooraghi, “New compact reconfigurable patch antenna for polarization and frequency diversity,”Electromagnetics, pp. 287-293, 2012.
S. Rezvani, Z. Atlasbaf, and K. Forooraghi, “A novel miniaturized reconfigurable slotted microstrip patch antenna with DGS,” Electromagnetics, pp. 349-354, 2011.
D. M. Pozar, Microwave Engineering, 2 nd ed., New York: Wiley, 1998.
Data Sheet MA4P274-1141T PIN Diodes, MACom. Application Note.
