A HORN-REFLECTOR ANTENNA FOR HIGH-PERFORMANCE SUBMILLIMETER-WAVE IMAGING ARRAYS

Authors
WITHINGTON S YASSIN G BUFFEY M NORDEN C
Citation
S. Withington et al., A HORN-REFLECTOR ANTENNA FOR HIGH-PERFORMANCE SUBMILLIMETER-WAVE IMAGING ARRAYS, International journal of infrared and millimeter waves, 18(2), 1997, pp. 341-358
Citations number
11
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied",Optics
Journal title
International journal of infrared and millimeter waves → ACNP
ISSN journal
01959271
Volume
18
Issue
2
Year of publication
1997
Pages
341 - 358
Database
ISI
SICI code
0195-9271(1997)18:2<341:AHAFHS>2.0.ZU;2-G
Abstract
We have developed an antenna for high-performance submillimetrewave im aging arrays. The antenna comprises a corrugated horn with an off-axis paraboloidal reflector at its aperture. The corrugated horn is machin ed directly into two halves of a split aluminium block. This approach avoids electroforming and is compatible with E-plane circuit technolog y. The resulting antenna is light weight and is ideal for space applic ations. For compatibility with submillimetre-wave optics, the the beha viour has been calculated by using Gaussian-Hermite modes, and the int egrity of the theory has been verified by modelling the behaviour of a 17GHz antenna. The manufacturing procedure has been investigated by m achining and testing a horn-reflector antenna for 450-500GHz. Our next step is to extend the technique to 1THB.