Lightweight ceramic lens for microwave antenna
Abstract
Abstract A PROCESS FOR MAKING A LENS, GENERALLY IN THE SHAPE OF A SPHERE, COMPOSED OF A DIELECTRIC MATERIAL HAVING A DIELECTRIC CONSTANT WHICH MAY HAVE A VALUE ANYWHERE BETWEEN 2 AND 20, FOR THE SPECIFIC GRAVITY RNAGE OF 0.70 TO 2.50, SUITABLE FOR USE AT A TEMPERATURE OF UP TO 1200* C., WITH CERTAIN COMPOSITIONS AND AT FREQUENCIES UP TO MICROWAVE FREQUENCIES OF 100 GHZ, COMPRISING THE STEPS OF: (1) PREPARING A POROUS, LIGHTWEIGHT, CERAMIC GRAIN; (2) BLENDING THE GRAIN WITH A MIXTURE OF ORGANIC AND CERAMIC BINDERS; (3) FORMING THE MATERIAL INTO A DESIRED SHAPE, FOLLOWED BY BURNING OUT THE ORGANIC BINDERS. THE FORMING MAY TAKE ONE OF TWO FORMS: (A) HYDROSTATIC PRESSING IN A RUBBER MOLD; OR (B) SINTERING IN A REFRACTORY MOLD, ALSO DESIGNATED KILN BONDING: (4) DRY MACHINING THE LENS TO PRECISE SPERICAL DIMENSIONS; AND (5) COATING THE MACHINED LENS WITH A CERAMIC OR CERAMICPLASTIC SEALING SYSTEM.
Inventors
- 👤 W Lent
- 👤 J Flores
Bibliographic Details
Claims Analysis
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