Abstract
In this paper, the theoretical far-field patterns and Gaussianbeam coupling efficiencies are investigated for a double-slot antenna placed on quartz hemispherical lenses with varying extension lengths. The radiation patterns of the double-slot antenna are computed using ray-tracing inside the lens and electric and magnetic field integration on the spherical dielectric surface. The theoretical results are equally valid for double-dipole, log-periodic, and spiral antennas, and are presented in extension length/radius and radius/λ. Therefore, the results yield universal design curves for quartz lenses of different diameters and at different frequencies and using different antennas. The results indicate that forsingle units, there exists a wide range of extension lengths (ext. length/radius=0.61 to 0.76) which result in high Gaussian-coupling efficiencies to moderately highf/# systems. Forimaging array applications with high packing densities, an extension length/radius=0.82 to 0.93 (depending on frequency) will result in peak directivity and highest packing density but lower Gaussian-coupling efficiencies.
Similar content being viewed by others
References
D.F. Filipovic, S.S. Gearhart, and G.M. Rebeiz, “Double-slot antennas on extended hemispherical and elliptical silicon dielectric lenses,”IEEE Trans. on Microwave Theory Tech., October, 1993.
D.B. Rutledge, D.P. Neikirk and D.P. Kasilingam, “Integrated circuit antennas,”Infrared and Millimeter-Waves, vol. 10, K.J. Button, Ed., New York: Academic Press, pp. 1–90, 1983.
M.J. Wengler, D.P. Woody, R.E. Miller, and T.G. Phillips, “A low noise receiver for millimeter and submillimeter wavelengths,”Int. J. Infrared and Millimeter Waves, vol. 6, pp. 697–706, 1985.
Q. Hu, Z.A. Mears, P.L. Richards, and S.L. Loyd, “Millimeter-wave quasioptical SIS mixers,”IEEE Trans. Magn., vol. 25, pp. 1380–1383, 1989.
T.H. Büttgenbach, “A fixed tuned broadband matching structure for submillimeter SIS receivers,”IEEE Trans. on Applied Superconductivity, vol. 2, no. 3, pp. 165–175, 1992.
J. Zmuidzinas, “Quasi-optical slot antenna SIS mixers,”IEEE Trans. on Microwave Theory Tech., vol. MTT-40, no. 9, pp. 1797–1804, 1991.
A. Skalare, H. van de Stadt, Th. de Graauw, R.A. Panhuyzen, M.M.T.M. Dierichs, “Double Dipole Antenna SIS Receivers at 100 and 400 GHz,”Third Int. Symp. on Space Terahertz Technology, Ann Arbor, MI, pp. 222–233, March 1992.
M. Born and E. Wolf,Principles of Optics. New York: Permagon Press, pp. 252–252, 1959.
T.H. Büttgenbach, “An improved solution for integrated array optics in quasi-optical mm and submm receivers: the hybrid antenna,” to appear in theIEEE Trans. on Microwave Theory Tech., October, 1993.
A.R. Kerr, P.H. Siegel, and R.J. Mattauch, “A simple quasi-optical mixer for 100–120GHz,”IEEE-MTT Int. Microwave Symp. Digest, pp. 96–98, 1977.
M. Kominami, D.M. Pozar, and D.H. Schaubert, “Dipole and slot elements and arrays on semi-infinite substrates,”IEEE Trans. Antennas Propagat., vol. AP-33, pp. 600–607, June 1985.
B.K. Kormanyos, C.C. Ling, and G.M. Rebeiz, “A planar wideband millimeter-wave subharmonic receiver,” inIEEE/MTT-S Int. Microwave Symp. Dig., 1991, pp.213–216; alsoIEEE Trans. Microwave Theory Tech., to be published (Oct. 1993).
Zmuidzinas, private communication, 1993.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Filipovic, D.F., Rebeiz, G.M. Double-slot antennas on extended hemispherical and elliptical quartz dielectric lenses. Int J Infrared Milli Waves 14, 1905–1924 (1993). https://doi.org/10.1007/BF02096363
Received:
Issue Date:
DOI: https://doi.org/10.1007/BF02096363