volume | PIER Journals

Abstract

In fusion reaction, plasma parameters such as the density and temperature of electrons should be diagnosed continuously. There are various methods to diagnose plasma parameters. In these, reflectometry systems are widely used to measure the electron density and plasma physics study. In reflectometry systems, antenna plays an important role as a transmitter/receiver element. This paper presents the design of a D-band (110-170 GHz) corrugated horn antenna suitable for reflectometry system. The simulated results for antenna are compared with that of the measurements. Further, different structures are proposed to ease fabrication complexities and reduce cost.

1. Laviron, C., A. J. H. Donne, M. E. Manso, and J. Sanchez, "Reflectometry techniques for density profile measurements on fusion plasmas," Plasma Physics and Controlled Fusion, Vol. 38, 905, 1996.
doi:10.1088/0741-3335/38/7/002 Google Scholar

2. Conway, G. D., "Microwave reflectometry for fusion plasma diagnosis," Nucl. Fus., Vol. 46, S665-S669, 2006.
doi:10.1088/0029-5515/46/9/S01 Google Scholar

3. Sakaguchi, M., H. Idei, T. Saito, and T. Shigematsu, "Development of full D-band corrugated horn antenna for ECRH system," Plasma and Fusion Research, Vol. 8, 1405163-1405163, 2013.
doi:10.1585/pfr.8.1405163 Google Scholar

4. Olver, A. D., P. J. B. Clarricoats, A. A. Kishk, and L. Shafai, Microwave Horns and Feeds, IEE, 1994.
doi:10.1049/PBEW039E

5. Schorr, M. G. and J. F. J. Beck, "Electromagnetic field of a conical horn," Appl. Phys. J., Vol. 21, 795-801, 1950.
doi:10.1063/1.1699761 Google Scholar

6. Balanis, C. A., Antenna Theory, Wiley, New York, NY, USA, 1997.

7. Potter, P. D., "A new horn antenna with suppressed sidelobes and equal beamwidths," Microw. J., Vol. 6, 71-78, 1961. Google Scholar

8. Simons, A. J. and A. F. Kay, "The scalar feed --- A high performance feed for large paraboloid reflectors," Design and Construction of Large Steerable Aerials, Vol. 21, 213-217, 1966. Google Scholar

9. Clarricoats, P. J. B., A. D. Olver, and M. S. A. S. Rizk, "A dielectric loaded conical feed with low crosspolar radiation," Proc. URSI Symp. Electromagn. Theory, 351-354, 1983. Google Scholar

10. Chung, J. Y., "Ultra-wideband dielectric-loaded horn antenna with dual-linear polarization capability," Progress In Electromagnetics Research, Vol. 102, 397-411, 2010.
doi:10.2528/PIER10022703 Google Scholar

11. Lier, E., "Hybrid-mode horn antenna with design-specific aperture distribution and gain," Antennas and Propagation Society International Symposium, 502-505, 2003. Google Scholar

12. Hwang, R. B., H. W. Liu, and C. Y. Chin, "A metamaterial-based E-plane horn antenna," Progress In Electromagnetics Research, Vol. 93, 275-289, 2009.
doi:10.2528/PIER09050606 Google Scholar

13. Cupido, L., E. De la Luna, C. Antonucci, A. Guigon, F. J. van Amerongen, W. A. Bongers, A. J. H. Donne, et al. "New millimeter-wave access for JET reflectometry and ECE," Fusion Engineering and Design, Vol. 74, 707-713, 2005.
doi:10.1016/j.fusengdes.2005.06.312 Google Scholar

14. McElhinney, P., C. R. Donaldson, L. Zhang, and W. He, "A high directivity broadband corrugated horn for W-band gyro-devices," IEEE Transactions on Antennas and Propagation, Vol. 61, 1453-1456, 2013.
doi:10.1109/TAP.2012.2228840 Google Scholar

15. Teniente, J., D. Goni, R. Gonzalo, and C. del-Rio, "Choked Gaussian antenna: Extremely low sidelobe compact antenna design," IEEE Antennas and Wireless Propagation Letters, Vol. 1, 200-202, 2002.
doi:10.1109/LAWP.2002.807959 Google Scholar

16. Granet, C., T. S. Bird, and G. L. James, "Comments on choked Gaussian antenna: Extremely low sidelobe compact antenna design," IEEE Antennas and Wireless Propagation Letters, Vol. 2, 363-364, 2003.
doi:10.1109/LAWP.2003.820716 Google Scholar

17. Teniente, J., A. Martinez, B. Larumbe, A. Ibanez, and R. Gonzalo, "Design guidelines of horn antennas that combine horizontal and vertical corrugations for satellite communications," IEEE Transactions on Antennas and Propagation, Vol. 63, 1314-1323, 2015.
doi:10.1109/TAP.2015.2390630 Google Scholar

18. Gibson, H. J., B. Thomas, L. Rolo, M. C. Wiedner, A. E. Maestrini, and P. De. Maagt, "A novel spline-profile diagonal horn suitable for integration into THz split-block components," IEEE Transactions on Terahertz Science and Technology, Vol. 7, 657-663, 2017.
doi:10.1109/TTHZ.2017.2752423 Google Scholar

19. Jyoti, R., S. Chakrabarty, R. Dey, and T. Kurian, "Synthesis and analysis of multi-mode profile horn using mode matching technique and evolutionary algorithm," IET Microwaves, Antennas and Propagation, Vol. 1, 276-282, 2016. Google Scholar

20. Vishnu, G. J., S. Chaudhary, and D. A. Pujara, "Performance comparison of a corrugated horn with a spline profile horn for plasma diagnostics," 2017 Nirma University International Conference on Engineering (NUiCONE), 1-4, 2017. Google Scholar

21. Stix, T. H., Waves in Plasmas, Springer Science & Business Media, 1992.

22. Thompson, W. B., An Introduction to Plasma Physics, Elsevier, 2013.

23. James, G. L., "Analysis and design of TE11-to-HE11 corrugated cylindrical waveguide mode converters," IEEE Transactions on Microwave Theory and Techniques, Vol. 29, 1059-1066, 1981.
doi:10.1109/TMTT.1981.1130499 Google Scholar

24. Granet, C. and G. L. James, "Design of corrugated horns: A primer," IEEE Antennas and Propagation Magazine, Vol. 47, 76-84, 2005.
doi:10.1109/MAP.2005.1487785 Google Scholar

25. Pujara, D. A., "Project report: Design, fabrication and testing of a corrugated horn antenna for millimeter wave plasma diagnostics,", Board of Research in Nuclear Sciences, Department of Atomic Energy, 2019. Google Scholar

26. Wylde, R. J., "Millimetre-wave Gaussian beam-mode optics and corrugated feed horns," IEE Proceedings H (Microwaves, Optics and Antennas), Vol. 131, 258-262, IET Digital Library, 1984.
doi:10.1049/ip-h-1.1984.0053 Google Scholar

Mr. Gupta Jay Vishnu

Prof. Dhaval A. Pujara

Dr. Hitesh Pandya