Abstract
Standing waves between transmit and receive feedhorns in quasi-optical systems often limit the achievable performance of mm-wave and sub-mm-wave instrumentation. Even with high performance corrugated feedhorns and perfect frequency independent optics, significant standing waves can occur because of the resonant build-up of higher order modes between feedhorns. In this paper we describe a new design of wideband corrugated feedhorn that significantly reduces standing wave effects, is scalable to any frequency, is shorter than standard horns and is suitable for a wide range of optical configurations. In addition it produces far-field beam patterns with much reduced sidelobes. We will describe the theory behind this new feedhorn design, outline scaling laws and present experimental results confirming the analysis.
Original language | English |
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Title of host publication | 2007 Joint 32ND International conference on Infrared and Millimeter Waves and 15TH International Conference on Terahertz Electronics |
Place of Publication | NEW YORK |
Publisher | IEEE |
Pages | 922-923 |
Number of pages | 2 |
Volume | 1 and 2 |
ISBN (Print) | 9781424414383 |
DOIs | |
Publication status | Published - 2007 |
Event | Joint 32nd International Conference on Infrared and Millimeter Waves/15th International Conference on Terahertz Electronics - Cardiff Duration: 3 Sept 2007 → 9 Sept 2007 |
Conference
Conference | Joint 32nd International Conference on Infrared and Millimeter Waves/15th International Conference on Terahertz Electronics |
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City | Cardiff |
Period | 3/09/07 → 9/09/07 |