Interdigital local oscillator filter apparatus
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United States of America Patent
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Apr 16, 1991
Issued Date -
N/A
app pub date -
May 23, 1989
filing date -
Sep 30, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An integrated local oscillator interdigital filter apparatus in a down converter is mounted on the same printed circuit board. The housing of the interdigital filter is cut from sheet metal, with a conductive surface on the printed circuit board as one side. A method for construction of the interdigital filter is also set forth.
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