Perforated metal plate with dielectric-filled holes acts as dual-passband dichroic microwave plate. Use of dielectric enables use of smaller, more-closely-spaced holes, reducing undesired diffraction-grating lobes. Arrangement and sizes of holes, distances between them, and material and dimensions of dielectric plugs chosen to satisfy design requirements.
Dual-Passband Microwave Dichroic Plates
NASA Tech Briefs ; 16 , 6
1992-06-01
Sonstige
Keine Angabe
Englisch
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|Scattering From a Thick Dichroic Microwave Reflector
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