Circuit protection from radio frequency energy
First Claim
Patent Images
1. In combination:
- a molded plastic housing;
a circuit carried by a substrate mounted in the plastic housing;
a plurality of leads including a ground lead extending through the housing and coupled to the circuit;
an antenna electrically connected only to the ground lead, encapsulated in the plastic housing, and extending around the circuit perimeter, whereby radio frequency energy is at least partially dissipated by radiated emission from the antenna to reduce radio frequency energy in the circuit.
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Accused Products
Abstract
A hybrid circuit in a molded plastic housing has an antenna in the housing connected to the ground lead of the circuit for dissipating RF energy which is applied to the circuit due to electromagnetic interference, thereby increasing the degree of immunity of the circuit. Preferably the antenna is integral with the ground lead, is formed in a loop around the circuit and is embedded in the plastic housing.
65 Citations
10 Claims
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1. In combination:
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a molded plastic housing; a circuit carried by a substrate mounted in the plastic housing; a plurality of leads including a ground lead extending through the housing and coupled to the circuit; an antenna electrically connected only to the ground lead, encapsulated in the plastic housing, and extending around the circuit perimeter, whereby radio frequency energy is at least partially dissipated by radiated emission from the antenna to reduce radio frequency energy in the circuit. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In combination:
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an insulating housing having an inner wall defining a well; a circuit; a substrate carrying the circuit and seated in the well of the housing; a plurality of leads including a ground lead extending through the housing and coupled to the circuit; a loop antenna electrically connected only to the ground lead and extending along the inner walls around the circuit within the housing well. - View Dependent Claims (9, 10)
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Specification
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Current AssigneeDelphi Technologies, Inc. (BorgWarner Incorporated)
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Original AssigneeDelco Electronics Corporation (Motors Liquidation Co. GUC Trust)
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InventorsBuehler, Ervin Roland
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Primary Examiner(s)Picard, Leo P.
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Assistant Examiner(s)Gandhi, Jayprakash N.
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Application NumberUS08/748,223Time in Patent Office1,148 DaysField of Search361/212, 361/220, 361/56, 361/111, 361/119, 361/752, 361/799, 343/741, 343/841, 235/492, 235/385, 174/51, 439/108US Class Current361/799CPC Class CodesH05K 5/0043 comprising a frame housing ...H05K 9/0052 Shielding other than Farada...
