Pressure-formed parabolic reflectors for millimeter wavelengths

An empirical investigation of metallic diaphragms deformed by uniform normal pressure to produce accurate parabolic reflectors is discussed. 30-cm diameter ( f/D =0.4 ) reflectors produced by this technique were measured mechanically and found to have maximum deviations of only 0.5 mm or \lambda/20...

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Bibliographic Details
Published in:I.R.E. transactions on antennas and propagation 1968-11, Vol.16 (6), p.762-764
Main Authors: Semplak, R., Turrin, R.
Format: Article
Language:English
Subjects:
Antenna arrays
Antennas and propagation
Dielectrics
Electrooptical waveguides
Optical reflection
Phased arrays
Polarization
Rectangular waveguides
Resonance
Surface waves
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Summary:An empirical investigation of metallic diaphragms deformed by uniform normal pressure to produce accurate parabolic reflectors is discussed. 30-cm diameter ( f/D =0.4 ) reflectors produced by this technique were measured mechanically and found to have maximum deviations of only 0.5 mm or \lambda/20 at 30 GHz from a true paraboloid within a circle of 14-cm radius. Electrical measurements at 30 GHz are discussed.
ISSN:0018-926X
0096-1973
1558-2221
DOI:10.1109/TAP.1968.1139297