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.
Filters for Submillimeter Electromagnetic Waves
NASA Tech Briefs ; 10 , 3
1986-05-01
Miscellaneous
No indication
English
Making High-Pass Filters For Submillimeter Waves
NTRS | 1991
|Large orbit gyrotron at submillimeter waves
IEEE | 2005
|Propagation of millimeter and submillimeter waves
TIBKAT | 1967
|Investigation of Iron Borate on the Submillimeter Waves
British Library Online Contents | 1995
|WA4-6 Large Orbit Gyrotron at Submillimeter Waves
British Library Conference Proceedings | 2005
|