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Double-shielded housing for RF circuitry

  • US 4,717,990 A
  • Filed: 05/30/1986
  • Issued: 01/05/1988
  • Est. Priority Date: 05/30/1986
  • Status: Expired due to Fees
First Claim
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1. An electronic apparatus comprising a housing, said housing being an integrally cast housing and being of an electrically conductive material, said housing having outer walls including a base wall and side walls and further having at least one partition wall, said outer walls together defining an inner space of said housing, an electronic circuit board, said circuit board being removably fastened within said inner space and including at least two electronic circuits located at different sections of said circuit board, said circuit board further being provided with at least one aperture separting said sections from each other, at least one partition wall extending from one of said outer walls into said inner space through said aperture, so as to subtantially divide said inner space into two individual compartments each containing one of said sections of said circuit board, and a first shielding component of an electrically conductive material, said first shielding component being arranged in electrical contact with said housing, so as to substantially close only one of said individual compartments in relation to the other compartment an in relation to the environment, and further provide a shielding of one electronic circuit when the substantially closed compartment in relation to the other electronic circuit and in relation to the environment.

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