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Proceedings Paper

Novel low-cost technique to manufacture submillimeter corrugated feedhorns
Author(s): Jean-Marie Munier; A. Maestrini; Morvan C. Salez; Matthieu Guillon; B. Marchand
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Paper Abstract

Corrugated feedhorns are commonly used with reflector antennas, either for emission or reception purposes, because of their very low side lobe beam patterns, their very good E-H plane symmetry and their important bandwidth. Unfortunately, the electroforming technique that is generally used to fabricate them requires the machining of single-use mandrel. Direct milling of the horn is also possible, either in a single block or in a split block, but this also requires to machine each desired horn. At submillimeter frequencies, machining of small corrugations in a mandrel or in a block is costly. We present in this paper a cost-effective technique to fabricate helicoidal corrugated feed horns, which consists in machining one reusable mandrel and to mold as many horns as needed.

Paper Details

Date Published: 3 July 2000
PDF: 15 pages
Proc. SPIE 4015, Radio Telescopes, (3 July 2000); doi: 10.1117/12.390443
Show Author Affiliations
Jean-Marie Munier, Observatoire de Paris (France)
A. Maestrini, Jet Propulsion Laboratory (France)
Morvan C. Salez, Observatoire de Paris (France)
Matthieu Guillon, Observatoire de Paris (France)
B. Marchand, Observatoire de Paris (France)

Published in SPIE Proceedings Vol. 4015:
Radio Telescopes
Harvey R. Butcher, Editor(s)

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