volume | PIER Journals

Abstract

A dual circularly polarized (CP) antenna is proposed in this paper. By employing suspended strip line to feed the patch at the two diagonal positions with 90º phase difference, single circular polarization is firstly obtained. Then dual circular polarization is excited by an L-shaped strip. The two feeding ports near the edges of the L-shaped strip arms provide the conversion between left-hand circular polarization (LHCP) and right-hand circular polarization (RHCP). Measured results show that the proposed antenna has 10-dB return loss bandwidth of 30.5% (2.08-2.83 GHz), 10-dB isolation bandwidth of 15.7% (2.29-2.68 GHz), 3-dB axial ratio (AR) bandwidth of 25.1% (2.16-2.78 GHz).

1. Wang, Z. B., S. J. Fang, S. Q. Fu, and S. L. Jia, "Single-fed broadband circularly polarized stacked patch antenna with horizontally meandered strip for universal UHF RFID applications," IEEE Transactions on Microwave Theory and Techniques, Vol. 59, No. 4, 1066-1073, 2011.
doi:10.1109/TMTT.2011.2114010 Google Scholar

2. Chen, Z. N., X. M. Qing, and H. L. Chung, "A universal UHF RFID reader antenna," IEEE Transactions on Microwave Theory and Techniques, Vol. 57, No. 5, 1275-1282, 2009.
doi:10.1109/TMTT.2009.2017290 Google Scholar

3. Lai, X. Z., Z. M. Xie, Q. Q. Xie, and X. L. Cen, "A dual circularly polarized RFID reader antenna with wideband isolation," IEEE Antennas Wireless Propagation Letters, Vol. 12, 1630-1633, 2013.
doi:10.1109/LAWP.2013.2294173 Google Scholar

4. Zhao, G., L. N. Chen, and Y. C. Jiao, "Design of a broadband dual circularly polarized square slot antenna," Microwave and Optical Technology Letters, Vol. 50, No. 10, 2639-2642, 2008.
doi:10.1002/mop.23741 Google Scholar

5. Narbudowicz, A., X. L. Bao, and M. J. Ammann, "Dual circularly-polarized patch antenna using even and odd feed-line modes," IEEE Transactions on Antennas and Propagation, Vol. 61, No. 9, 4828-4831, 2013.
doi:10.1109/TAP.2013.2269471 Google Scholar

6. Aloni, E. and R. Kastner, "Analysis of a dual circularly polarized microstrip antenna fed by crossed slots," IEEE Transactions on Antennas and Propagation, Vol. 42, No. 8, 1053-1058, 1994.
doi:10.1109/8.309996 Google Scholar

7. Harouni, Z., L. Cirio, L. Osman, A. Gharsallah, and O. Picon, "A dual circularly polarized 2.45-GHz rectenna for wireless power transmission," IEEE Antennas Wireless Propagation Letters, Vol. 10, 306-309, 2011.
doi:10.1109/LAWP.2011.2141973 Google Scholar

8. Haboubi, W., H. Takhedmit, J.-D. Lan Sun Luk, S.-E. Adami, B. Allard, F. Costa, C. Vollaire, O. Picon, and L. Cirio, "An efficient dual-circularly polarized rectenna for RF energy harvesting in the 2.45GHz ISM band," Progress In Electromagnetics Research, Vol. 148, 31-39, 2014.
doi:10.2528/PIER14031103 Google Scholar

9. Lai, X. Z., Z. M. Xie, and X. L. Cen, "Design of dual circularly polarized antenna with high isolation for RFID application," Progress In Electromagnetics Research, Vol. 139, 25-39, 2013.
doi:10.2528/PIER13030609 Google Scholar

10. Zhang, C. H., X. L. Liang, X. D. Bai, J. P. Geng, and R. H. Jin, "A broadband dual circularly polarized patch antenna with wide beamwidth," IEEE Antennas Wireless Propagation Letters, Vol. 13, 1457-1460, 2014.
doi:10.1109/LAWP.2014.2333760 Google Scholar

Dr. Jianjun Wu

Dr. Hao Yang

Professor Ying-Zeng Yin