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Design and performance of sliced-aperture corrugated feed horn antennas

Rev. Sci. Instrum. 76, 124703 (2005); doi:10.1063/1.2148990

Published 27 December 2005

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J. Singal
University of California, Santa Barbara, Code 665, Building 21, Greenbelt, Maryland 20771

E. Wollack and A. Kogut
NASA Goddard Space Flight Center, Code 665, Building 21, Greenbelt, Maryland 20771

M. Limon and P. Mirel
Science Systems and Applications, Inc., Code 665, Building 21, Greenbelt, Maryland 20771

P. Lubin
University of California, Santa Barbara, Broida Hall, Santa Barbara, California 93106

M. Seiffert
Jet Propulsion Laboratory, 4800 Oak Drive, Pasadena, California 91109
We report on the design of corrugated feed horn microwave antennas at 3.3, 5.6, 7.8, and 10.2 GHz for the absolute radiometer for cosmology, astrophysics, and diffuse emission experiment. These horns have low sidelobe symmetrical beams with 12° full width at half power, and three noteworthy features: a 30° slice at the aperture, a profiled rather than a linear taper, and a slowly varying groove depth along the length of the horn. The profiled taper and varying groove depth provided a narrow beam given the existing physical spatial constraints of the instrument in which the horns are used. The 30° slice was necessary for instrumental considerations and has a minimal effect on the symmetry of the beam. The slice reduces the effective aperture radius and overall length to that corresponding to an unsliced horn with an aperture at roughly the middle of the slice and does not introduce any undesirable effects. ©2005 American Institute of Physics
History: Received 26 August 2005; accepted 3 November 2005; published 27 December 2005
Permalink: http://link.aip.org/link/?RSINAK/76/124703/1
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KEYWORDS and PACS

Keywords
PACS
  • 84.40.Ba
    Antennas: theory, components and accessories
  • 07.57.Kp
    Bolometers; infrared, submillimeter wave, microwave, and radiowave receivers and detectors
  • 95.55.Jz
    Radio telescopes and instrumentation; heterodyne receivers
  • YEAR: 2005

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PUBLICATION DATA

ISSN:
0034-6748 (print)   1089-7623 (online)
Publisher:
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REFERENCES (7)
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  6. G. L. James, IEEE Trans. Antennas Propag. AP-30, 1057 (1982).
  7. J. A. Murphy, R. Colgan, C. O'Sullivan, B. Maffei, and P. Ade, Infrared Phys. Technol. 42, 515 (2001).

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