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2022-11-20
Coplanar Series-Fed Spiral Antenna Arrays for Enlarged Axial Ratio Bandwidth
By
Progress In Electromagnetics Research Letters, Vol. 108, 1-8, 2023
Abstract
We study two array antennas to expand a 3 dB axial ratio bandwidth. Each array is located at a quarter wavelength above the ground plane and analyzed using the moment method. First, we use paired spiral elements fed by balanced parallel lines to avoid unwanted radiation from the feedline. It is found that the antenna shows an axial ratio bandwidth of 30%. Next, the elements are separated and fed by a single feedline to simplify the feed system. It is revealed that the antenna can radiate a circularly polarized wave under a feedline radiation of less than -16 dB. The frequency responses show that an axial ratio < 3 dB and VSWR < 2 are obtained in a bandwidth of 21%, where the gain is more than 13.3 dBi. The simulated results are verified with experimental ones.
Citation
Kazuhide Hirose, Yuki Tamura, Masaki Tsugane, and Hisamatsu Nakano, "Coplanar Series-Fed Spiral Antenna Arrays for Enlarged Axial Ratio Bandwidth," Progress In Electromagnetics Research Letters, Vol. 108, 1-8, 2023.
doi:10.2528/PIERL22100901
References

1. Mishra, G., S. K. Sharma, and J. S. Chieh, "A high gain series-fed circularly polarized traveling-wave antenna at W-band using a new butterfly radiating element," IEEE Trans. Antennas and Propag., Vol. 68, No. 12, 7947-7957, 2020.
doi:10.1109/TAP.2020.3000567

2. Bui, C. D., N. Nguyen-Trong, and T. K. Nguyen, "A planar dual-band and dual-sense circularly polarized microstrip patch leaky-wave antenna," IEEE Antennas Wireless Propag. Lett., Vol. 19, No. 12, 2162-2166, 2020.
doi:10.1109/LAWP.2020.3026067

3. Hilario Re, P. D., D. Comite, and S. K. Podilchak, "Single-layer series-fed planar array with controlled aperture distribution for circularly polarized radiation," IEEE Trans. Antennas and Propag., Vol. 68, No. 6, 4973-4978, 2020.
doi:10.1109/TAP.2019.2952001

4. Shen, S. J., C. Fumeaux, Y. Monnai, and W. Withayachumnankul, "Dual circularly polarized series-fed microstrip patch array with coplanar proximity coupling," IEEE Antennas Wireless Propag. Lett., Vol. 16, 1500-1503, 2017.

5. Hirose, K., Y. Kikkawa, and H. Nakano, "Dual-loop arrays fed by coplanar parallel lines for wideband circular polarization," IEEE Antennas Wireless Propag. Lett., Vol. 20, No. 4, 478-482, 2021.
doi:10.1109/LAWP.2021.3054587

6. Hirose, K., M. Nakatsu, and H. Nakano, "A loop antenna with enlarged bandwidth of circular polarization --- Its application in a comb-line antenna," Progress In Electromagnetics Reseach, Vol. 105, 175-184, 2020.
doi:10.2528/PIERC20071902

7. Harrington, R. F., Fields Computation by Moment Methods, Macmillan, 1968.

8. Hirose, K., K. Obuse, Y. Uchikawa, and H. Nakano, "Low-profile circularly polarized radiation elements --- Loops with balanced and unbalanced feeds," IEEE AP-S Int. Symp., 1-4, San Diego, USA, 2008.

9. Nakano, H., T. Oka, K. Hirose, and J. Yamauchi, "Analysis and measurements for improved crank-line antennas," IEEE Trans. Antennas and Propag., Vol. 45, No. 7, 1166-1172, 1997.
doi:10.1109/8.596910

10. Kraus, J. D., Antennas, 2nd Ed., MacGraw-Hill, 1988.

11. James, J. R. and P. S. Hall, Handbook of Microstrip Antennas, Peregrinus, 1989.

12. Cao, Y., S. Yan, J. Li, and J. Chen, "A pillbox based dual circularly-polarized millimeter-wave multi-beam antenna for future vehicular radar application," IEEE Trans. Vehicular Technology, Vol. 71, No. 7, 7095-7103, 2022.
doi:10.1109/TVT.2022.3162299

13. Nguyentrong, N., S. J. Chen, and C. Fumeaux, "High-gain dual-band dual-sense circularly polarized spiral series-fed patch antenna," IEEE Open J. of Antennas and Propag., Vol. 3, 343-352, 2022.
doi:10.1109/OJAP.2022.3161129