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Three-shaped-reflector beam-scanning pillbox antenna suitable for mm wavelengths


Hay, SG and Smith, SL and Timms, GP and Archer, JW, Three-shaped-reflector beam-scanning pillbox antenna suitable for mm wavelengths, IEEE Transactions on Antennas and Propagation, 59, (7) pp. 2495-2501. ISSN 0018-926X (2011) [Refereed Article]

Copyright Statement

Copyright 2011 IEEE

DOI: doi:10.1109/TAP.2011.2152335


We describe the design and measured performance of an improved beam-scanning fan-beam antenna suitable for mm wavelengths. The fan beam is scanned in the direction orthogonal to the fan and can be polarized either in or orthogonal to this direction. The pillbox design is improved by the introduction of a third cylindrical reflector and optimum shaping of all reflector profiles using an iterative diffraction analysis that includes aberration and blockage effects. Good agreement between the calculated and measured results is obtained, confirming a beamwidth of 0.3 and a scan range of 13.5 (45 beamwidths) for both polarizations at 186 GHz.

Item Details

Item Type:Refereed Article
Keywords:feeds, antenna radiation patterns, antenna measurements, reflector antennas, optimization, aperture antennas
Research Division:Engineering
Research Group:Electronics, sensors and digital hardware
Research Field:Photonic and electro-optical devices, sensors and systems (excl. communications)
Objective Division:Expanding Knowledge
Objective Group:Expanding knowledge
Objective Field:Expanding knowledge in engineering
UTAS Author:Timms, GP (Dr Gregory Timms)
ID Code:118319
Year Published:2011
Web of Science® Times Cited:12
Deposited By:Engineering
Deposited On:2017-07-10
Last Modified:2017-10-19

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