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Astigmatism in tapered slot antennas

Bowen, J. (1995) Astigmatism in tapered slot antennas. International Journal of Infrared and Millimeter Waves, 16 (10). pp. 1733-1756. ISSN 0195-9271

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To link to this article DOI: 10.1007/BF02068685

Abstract/Summary

A series of scale model measurements of transverse electromagnetic mode tapered slot antennas are presented. They show that the beam launched by this type of antenna is astigmatic. It is shown how an off-axis spherical mirror can be used to correct this astigmatism to allow efficient coupling to quasi-optical systems. A millimetre wave antenna and mirror combination is described and, with the aid of solid state noise diodes, the coupling of the launched beam to a quasi-optical spectrometer is shown to be in good agreement with that predicted by the scale model measurements.

Item Type:Article
Refereed:Yes
Divisions:Faculty of Science > School of Systems Engineering
ID Code:18903
Publisher:Spinger

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