This paper presents a low profile and low-cost patch antenna with dual circularly polarized (CP) capability in X-band at a canter frequency of 8.3 GHz. The dual-CP antenna is divided into three layers, composed of a parasitic square patch, radiation square patch with four equal arms, and 90˚ patch coupler. Two arms of the radiation patch are connected to the 90˚ hybrid coupler using two metalized vias. right-handed circular polarization (RHCP) and Left-handed circular polarization (LHCP) is achieved by exciting two different ports. To validate the proposed design, the prototype of dual-CP antenna is fabricated and measured. Based on the measurement, the structure of proposed antenna has an excellent circular-polarization purity of less than 3-dB over the whole operational frequency bandwidth of the antenna (8 GHz-8.47 GHz) with a wide 3-dB axial ratio (AR) beamwidth of 133˚ across the angular range from -55° to +78° at 8.3 GHz.
2. Li, H. D., X. Y. Du, J. Y. Yin, J. Ren, and Y. Yin, "Differentially fed dual-circularly polarized antenna with slow wave delay lines," IEEE Trans. Antennas Propag., Vol. 68, No. 5, 4066-4071, 2020.
doi:10.1109/TAP.2019.2949706
3. Mousavi, Z., P. Rezaei, and V. Rafii, "Single layer CPSSA array with change polarization diversity in broadband application," Int. J. RF Microwave Computer-Aided Eng., Vol. 27, No. 4, e21075, 2017.
doi:10.1002/mmce.21075
4. Wu, Z., M. C. Tang, T. Shi, and R. W. Ziolkowski, "Two-port, dual-circularly polarized, low-profile broadside-radiating electrically small huygens dipole antenna," IEEE Trans. Antennas Propag., Vol. 69, No. 1, 514-519, 2021.
doi:10.1109/TAP.2020.2999747
5. Sun, M., Z. Zhang, K. An, X. Wang, Y. Jiang, and A. Chen, "Dual-sense circular polarization antenna based on reconfigurable orthogonal network," Int. J. Antennas Propag., Vol. 2019, Article ID 1670786, 2019.
6. Sharma, P. and K. Gupta, "Analysis and optimized design of single feed circularly polarized microstrip antennas," IEEE Trans. Antennas Propag., Vol. 31, No. 6, 949-955, 1983.
doi:10.1109/TAP.1983.1143162
7. Adrian, A. and D. H. Schaubert, "Dual aperture-coupled microstrip antenna for dual or circular polarisation," Electron. Lett., Vol. 23, No. 23, 1226-1228, 1987.
doi:10.1049/el:19870854
8. Mousavi, Z. and P. Rezaei, "Millimetre-wave beam-steering array antenna by emphasising on improvement of Butler matrix features," IET Microwaves, Antennas & Propagation, Vol. 13, No. 9, 1287-1292, 2019.
doi:10.1049/iet-map.2018.5340
9. Caso, R., A. Buffi, M. R. Pino, P. Nepa, and G. Manara, "An annular-slot coupling feeding technique for dual-feed circularly polarized patch arrays," 2010 IEEE Antennas and Propagation Society International Symposium, 1-4, Toronto, 2010.
10. Ali, M. M. M. and A. Sebak, "Printed RGW circularly polarized differential feeding antenna array for 5G communications," IEEE Trans. Antennas Propag., Vol. 67, No. 5, 3151-3160, 2019.
doi:10.1109/TAP.2019.2900411
11. Ding, K., C. Gao, T. Yu, D. Qu, and B. Zhang, "Gain-improved broadband circularly polarized antenna array with parasitic patches," IEEE Antennas Wirel. Propag. Lett., Vol. 16, 1468-1471, 2017.
doi:10.1109/LAWP.2016.2646400
12. Xu, H., J. Zhou, K. Zhou, Q. Wu, Z. Yu, and W. Hong, "Planar wideband circularly polarized cavity-backed stacked patch antenna array for millimeter-wave applications," IEEE Trans. Antennas Propag., Vol. 66, No. 10, 5170-5179, 2018.
doi:10.1109/TAP.2018.2862345
13. Midya, M., S. Bhattacharjee, S. C. Bakshi, and M. Mitra, "CPW-fed dual-band dual-sence circularly polarized square slot antenna," 2018 IEEE Indian Conf. Antennas Propagation, 4-6, 2018.
14. Mousavi, Z., P. Rezaei, M. B. Kakhki, and T. A. Denidni, "Beam-steering antenna array based on a butler matrix feed network with CP capability for satellite application," Journal of Instrumentation, Vol. 14, P07005-1-P07005-9, 2019.
15. Narbudowicz, A., X. Bao, and M. J. Ammann, "Dual circularly-polarized patch antenna using even and odd feed-line modes," IEEE Trans. Antennas Propag., Vol. 61, No. 9, 4828-4831, 2013.
doi:10.1109/TAP.2013.2269471
16. Mousavi, Z. and P. Rezaei, "A two-layer beam-steering array antenna with 4 × 4 modified Butler matrix fed network for switched beam application," Int. J. RF Microwave Computer-Aided Eng., Vol. 30, No. 2, e22028, 2020.
17. Wang, A., X. Li, X. J. Yi, L. Yang, J. Zhao, and A. Li, "Dual circularly polarised omnidirectional antenna," IET Microw. Antennas Propag., Vol. 13, No. 6, 870-873, 2019.
doi:10.1049/iet-map.2018.5933
18. Moubadir, M., I. Badaoui, N. A. Touhami, M. Aghoutane, and M. El Ouahabi, "A new circular polarization dual feed microstrip square patch antenna using branch coupler feeds for WLAN/HIPERLAN applications," Procedia Manuf., Vol. 32, 702-709, 2019.
doi:10.1016/j.promfg.2019.02.274
19. Parchin, N. O., H. J. Basherlou, and R. A. Abd-Alhameed, "Dual circularly polarized crescent-shaped slot antenna for 5G front-end systems," Progress In Electromagnetics Research Letters, Vol. 91, 41-48, 2020.
doi:10.2528/PIERL20040107
20. Fakharian, M., P. Rezaei, and A. Orouji, "Reconfigurable multiband extended U-slot antenna with switchable polarization for wireless applications," IEEE Antennas Propag. Mag., Vol. 57, No. 2, 194-202, 2015, doi: 10.1109/MAP.2015.2414665.
doi:10.1109/MAP.2015.2414665
21. Mousavirazi, Z., V. Rafiei, and T. A. Denidni, "Beam-switching antenna array with dual-circular-polarized operation for WiMAX applications," AEU --- Int. J. Electron. C., Vol. 137, 153796, 2021, doi: https://doi.org/10.1016/j.aeue.2021.153796.
doi:10.1016/j.aeue.2021.153796
22. Chu, Q., M. Ye, and X. Li, "A low-profile omnidirectional circularly polarized antenna using planar sector-shaped endfire elements," IEEE Trans. Antennas Propag., Vol. 65, No. 5, 2240-2247, 2017.
doi:10.1109/TAP.2017.2679481
23. Liu, N.-W., L. Zhu, and W.-W. Choi, "Low-profile wide-beamwidth circularly-polarised patch antenna on a suspended substrate," IET Microw. Antennas Propag., Vol. 10, No. 8, 885-890, May 2016.
doi:10.1049/iet-map.2016.0081
24. Zhang, X., L. Zhu, N. W. Liu, and D. P. Xie, "Pin-loaded circularlypolarised patch antenna with sharpened gain roll-off rate and widened 3-dB axial ratio beamwidth," IET Microw. Antennas Propag., Vol. 12, No. 8, 1247-1254, Mar. 2018.
doi:10.1049/iet-map.2017.0970
Submit
