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Type: Journal article
Title: Design and simulation of a high efficiency Rotman lens for mm-wave collision avoidance sensor
Author: Hall, L.
Hansen, H.
Abbott, D.
Citation: Microelectronics Journal, 2002; 33(1-2):153-159
Publisher: Elsevier Advanced Technology
Issue Date: 2002
ISSN: 0026-2692
Statement of
Leonard Hall, Hedley Hansen and Derek Abbott
Abstract: Multi-beam approaches using beamforming antenna array architectures have been identified as one solution for overcoming the limited fields-of-view provided by highly directional mm-wave sensors. They are also ideal front end systems for collision avoidance devices. Rotman lenses offer a compact, rugged and reliable alternative to electronically scanned antenna technologies but architectures that operate at frequencies <20 GHz perform poorly at higher frequencies on account of greater losses and dispersion. This paper outlines the design process for providing Rotman-based lenses, examining various levels of simulation that are needed for designs that function at K and W-band frequencies. The impact of using microstrip structures is demonstrated. A key advantage of our approach is that it is compatible with monolithic fabrication, leading the way towards smart collision avoidance sensors.
Keywords: Smart antenna; Rotman lens; Beamforming; microantenna arrays
RMID: 0020020278
DOI: 10.1016/S0026-2692(01)00114-8
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Appears in Collections:Electrical and Electronic Engineering publications

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