volume | PIER Journals

Abstract

Aperture efficiency determines the percentage of radiation power incident upon the antenna available at the feed-point. Because the geometry of reflector is fixed, the behavior is primarily a function of the feed. The feed line that connects (transmit/receive) RF to the feed becomes an integral part of the system, so achieving maximum aperture efficiency depends on the capacity of feed line. This paper proposes a microstrip feed line behavioral model for parabolic reflector antenna systems, using an open loop characterization approach. Dielectric material loss intensity varies from material to material. This is consequently used for the effective design of feed line, because characteristic impedance of transmission line varies with material type and the material properties. This causes the reflection loss due to mismatched impedance at the source and load. Loss tangential factor of each material has significant effect on the loss profile. The developed model is analyzed with losses of the feed pattern, and the distance between the edge and the vertex. The proposed attenuation factor can be used to predict loss intensity per feed line length, at different terrestrial and satellite communications frequency bands.

1. Rohrdantz, B., T. Jaschke, T. Reuschel, S. Radzijewski, A. Sieganschin, and A. F. Jacob, "An electronically scannable reflector antenna using a planar active array feed at Ka-band," IEEE Trans. Microw. Theory Techn., Vol. 65, No. 5, 1650-1661, May 2017.
doi:10.1109/TMTT.2017.2663402 Google Scholar

2. Dubok, A., G. Gerini, and A. B. Smolders, "Extreme scanning double shape-reflector antenna with multiple interactions for focal plane array applications," IEEE Trans. Antenna Prop., Vol. 68, No. 7, 5686-5690, Jan. 2020.
doi:10.1109/TAP.2019.2963617 Google Scholar

3. Wu, Q., X. Jiang, and C. Zhang, "Attenuation of orbital angular momentum beam transmission with a parabolic antenna," IEEE Antennas Wireless Propag. Lett., Vol. 20, No. 10, 1849-1853, Jul. 2021.
doi:10.1109/LAWP.2021.3094978 Google Scholar

4. Rohrdantz, B., K. Kuhlmann, A. Stark, A. Geise, and A. F. Jacob, "Digital beamforming antenna array with polarization multiplexing for mobile high-speed satellite terminal at Ka-band," J. Eng., Vol. 1, No. 1, 9, Feb. 2016.
doi:10.31186/jenggano.1.1.9-17 Google Scholar

5. Famoriji, O. J., S. Yang, Y. Li, W. Chen, A. Fadamiro, Z. Zhang, and F. Lin, "Design of a simple circularly polarized dual-frequency reconfigurable microstrip patch antenna array for millimeter-wave applications," IET Microwave, Antennas & Propagation, Vol. 13, No. 10, 1671-1677, Aug. 2019.
doi:10.1049/iet-map.2018.5973 Google Scholar

6. Debbarma, K., N. Truong, S. K. Sharma, and J. S. Chieh, "2-D beam steering performance of a triple mode horn antenna integrated with risley prism and phase correcting surface," IEEE Open Journal of Antennas Prop., Vol. 3, 752-761, Jun. 2022.
doi:10.1109/OJAP.2022.3187373 Google Scholar

7. Clarricoats, P. J. B. and A. D. Olver, "Corrugated horns for microwave antennas," Peter Peregrinus, London, U.K., 1994. Google Scholar

8. Kildal, P. S. and S. A. Skyttemyr, "Dipole-disk antenna with beam-forming ring," IEEE Trans. Antennas Propag., Vol. 30, No. 4, 529-534, 1982.
doi:10.1109/TAP.1982.1142875 Google Scholar

9. Cutler, C. C., "Parabolic-antenna design for microwaves," Proc. IRE, Vol. 35, No. 11, 1284-1294, 1947.
doi:10.1109/JRPROC.1947.233571 Google Scholar

10. Poulton, G. T. and T. S. Bird, "Improved rear-radiating waveguide cup feeds," Proc. IEEE Antennas Propag. Int. Symp., Mill Valley, CA, Vol. 1, 79{82, 1986. Google Scholar

11. Famoriji, O. J., K. F. Akingbade, E. O. Ogunti, W. Apena, A. Fadamiro, and F. Lin, "Analysis of phased array antenna system via spherical harmonics decomposition," IET Communications, Vol. 13, No. 18, 3097-3104, Nov. 2019.
doi:10.1049/iet-com.2018.5460 Google Scholar

12. Hansen, J., A. A. Kishk, P.S. Kildal, and O. Dahlsjo, "High performance reflector hat antenna with very low sidelobes for radio-link applications," Proc. Antennas Propag. Soc. Int. Symp., Vol. 2, 893-896, 1995. Google Scholar

13. James, G. L. and D. P. S. Malik, "Towards the theoretical design of splash-plate feeds," Electron. Lett., Vol. 11, No. 24, 593-594, 1975.
doi:10.1049/el:19750453 Google Scholar

14. Newham, P., "A high efficiency splash plate feed for small reflector antennas," Proc. IEEE Antennas Propag. Int. Symp., 420-423, 1985. Google Scholar

15. Pozarand, D. M. and D. Schaubert, "Microstrip antennas: the analysis and design of microstrip antennas and arrays," Institute of Electrical Engineers, London, U.K., 1994. Google Scholar

16. Qudrat-E-Maula, M. and L. Shafai, "Low-cost, microwave-fed printed dipole for prime focus reflector feed," IEEE Trans. Antenna Prop., Vol. 60, No. 11, 5428-5433, Nov. 2012.
doi:10.1109/TAP.2012.2208170 Google Scholar

17. Love, A. W., "Reflector antennas," IEEE Press, New York, 1978. Google Scholar

18. Balanis, C. A., "Antenna theory, analysis and design," John Wiley & Sons, Inc., 3rd Edition, Hoboken, New Jersey, 2005. Google Scholar

19. Famoriji, O. J., X. Yan, M. Khan, R. Kashif, A. Fadamiro, Md S. Ali, and F. Lin, "Wireless interconnect in multilayer chip-area-network for future multimaterial high-speed," Wireless Communications and Mobile Computing, Vol. Article ID 6083626, 2017, 2017. Google Scholar

20. Rahmat-Samii, Y. and R. Haupt, "Reflector antenna developments: A perspective on the past, present and future," IEEE Antennas Propag. Mag., Vol. 57, No. 2, 85-95, Sep. 2015.
doi:10.1109/MAP.2015.2414534 Google Scholar

21. Ivashina, M. V., M. N. M. Kehn, P Kildal, and R. Maaskant, "Decoupling efficiency of a wideband Vivaldi focal plane array feeding a reflector antenna," IEEE Trans. Antenna Prop., Vol. 57, No. 12, 373-382, Feb. 2009.
doi:10.1109/TAP.2008.2011184 Google Scholar

22. Hosseini, A., S. Kabiri, and F. D. Flaviis, "V-band high-gain printed quasi-parabolic reflector antenna with beam-steering," IEEE Trans. Antenna Prop., Vol. 65, No. 4, 1589-1598, Apr. 2017.
doi:10.1109/TAP.2017.2670324 Google Scholar

23. Silver, S., "Microwave antenna theory and design," McGraw-Hill MIT Radiation Lab. Series, Vol. 12, New York, 1949. Google Scholar

24. Famoriji, O. J., X. Yan, M. Khan, R. Kashif, A. Fadamiro, Md S. Ali, and F. Lin, "Wireless interconnect in multilayer chip-area-network for future multimaterial high-speed," Wireless Communications and Mobile Computing, Vol. 2017, Article ID 6083626, 2017. Google Scholar

25. Pozar, D. M., "Microwave engineering," John Wiley and Sons, INC, 2nd Edition, 1998. Google Scholar

26. Schnieder, F. and W. Heinrich, "Model of thin-film microstrip line for circuit design," IEEE Trans. on Microwave Theory and Techn., Vol. 49, 104-110, Jan. 2001.
doi:10.1109/22.899967 Google Scholar

Dr. Oluwole John Famoriji

Dr. Thokozani Shongwe