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Record Details

Record 50 of 18902
Filters for Submillimeter Electromagnetic Waves
Author and Affiliation:
Berdahl, C. M.(Caltech)
Abstract: New manufacturing process produces filters strong, yet have small, precise dimensions and smooth surface finish essential for dichroic filtering at submillimeter wavelengths. Many filters, each one essentially wafer containing fine metal grid made at same time. Stacked square wires plated, fused, and etched to form arrays of holes. Grid of nickel and tin held in brass ring. Wall thickness, thickness of filter (hole depth) and lateral hole dimensions all depend upon operating frequency and filter characteristics.
Publication Date: May 01, 1986
Document ID:
19860000291
(Acquired Nov 04, 1995)
Accession Number: 86B10291
Subject Category: FABRICATION TECHNOLOGY
Report/Patent Number: NPO-16498
Document Type: NASA Tech Brief
Publication Information: NASA Tech Briefs; p. P. 136; (ISSN 0145-319X); 10; 3
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: No Copyright
NASA Terms: DICHROISM; ELECTROMAGNETIC WAVE FILTERS; MESH
Availability Source: National Technology Transfer Center (NTTC), Wheeling, WV
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