In this paper, design of a profiled conical horn using piecewise biarc hermite polynomial interpolation is proposed. In order to improve the performance of the horn, a novel concept of `targeting the Region of Interest (RoI)' is used. The target specifications are decided based on the applicability of the horn in a reflectometry system for plasma diagnostics (D-band). Apart from the design details, the simulated results of the proposed horn are covered.
2. Milligan, T. A., Modern Antenna Design, John Wiley & Sons, 2005.
3. Olver, A. D., P. J. B. Clarricoats, A. A. Kishk, and L. Shafai, Microwave Horns and Feeds, Microwave Horns and Feeds, London, IEE, 1994.
4. Potter, P. D., "A new horn antenna with suppressed sidelobes and equal beam widths," Microw. J., Vol. 6, No. 6, 71-78, Jun. 1961.
5. Rudge, A. W. and N. A. Adatia, "New class of primary-feed antennas for use with offset parabolic reflector antennas," Elect. Lett., Vol. 11, No. 24, 597-599, Nov. 1975.
6. Sharma, S. B., D. A. Pujara, S. B. Chakrabarty, and V. K. Singh, "Improving the cross-polar performance of an offset parabolic reflector antenna using a rectangular matched feed," IEEE Antennas Wireless Propag. Lett., Vol. 8, 513-516, 2009.
7. Granet, C. and G. L. James, "Design of corrugated horns: A primer," IEEE Antennas Propag. Mag., Vol. 47, 76-84, Feb. 2005.
8. Dehdasht-Heydari, R., H. R. Hassani, and A. R. Mallahzadeh, "Quad ridged horn antenna for UWB applications," Progress In Electromagnetics Research, Vol. 79, 23-38, 2008.
9. Teniente, J., A. Martınez, B. Larumbe, A. Ibanez, and R. Gonzalo, "Design guidelines of horn antennas that combine horizontal and vertical corrugations for satellite communications," IEEE Trans. Antennas Propag., Vol. 63, No. 4, 1314-1323, Apr. 2015.
10. Vishnu, G. J., G. Jani, D. Pujara, and S. S.Menon, "U-band hybrid corrugated horn: An alternative to the conventional radial corrugated horns," IEEE Asia Pac. Microw. Conf., 853-856, Kuala Lumpar, 2017.
11. 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. Electromag. Theory, 351-354, Spain, Aug. 1983.
12. Chung, J. Y., "Ultra-wideband dielectric-loaded horn antenna with dual-linear polarization capability," Progress In Electromagnetics Research, Vol. 102, 397-411, 2010.
13. Lier, E., "Hybrid-mode horn antenna with design-specific aperture distribution and gain," IEEE Int. Symp. Antennas Propag. Soc., Vol. 4, 502-505, Jun. 2003.
14. Lim, A. A., "Comparative analysis between conical and Gaussian profiled horn antennas," Progress In Electromagnetics Research, Vol. 38, 147-166, 2002.
15. Granet, C., R. Bolton, and G. Moorey, "A smooth-walled spline-profile horn as an alternative to the corrugated horn for wide band millimeter-wave applications," IEEE Trans. Antennas Propag., Vol. 52, No. 3, 848-854, Mar. 2004.
16. Conway, G. D., "Microwave reflectometry for fusion plasma diagnosis," Nucl. Fus. J., Vol. 46, S665-S669, 2006.
17. Boor, C. D. and E. U. Mathematicien, A Practical Guide to Splines, Vol. 27, Springer-Verlag, New York, 1978.
18. Birkhoff, G. and C. R. de Boor, "Piecewise polynomial interpolation and approximation," Approxim. Func., 164-190, 1965.
19. Birkhoff, G., M. H. Schultz, and R. S. Varga, "Piecewise Hermite interpolation in one and two variables with applications to partial differential equations," Numerische Mathematik, Vol. 11, No. 3, 232-256, Mar. 1968.