US6011698A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit protection from radio frequency energy
Assignee: Delphi Technologies Inc
•
Filing: 1996-11-12
•
Granted: 2000-01-04
•
Expires: 2016-11-12
Abstract
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.
Inventors
- 👤 Ervin Roland Buehler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 00:03
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0052; H05K5/00; H05K5/0026; H05K5/0043
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
77 words
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.
Claim 2
Dependent Claim
77 words
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.
Claim 3
Dependent Claim
17 words
The invention as defined in claim 1 wherein the ground lead and the antenna are one piece.
Claim 4
Dependent Claim
28 words
The invention as defined in claim 1 wherein the leads and the antenna are formed from the same part, and the ground lead is integral with the antenna.
Claim 5
Dependent Claim
17 words
The invention as defined in claim 1 wherein the antenna comprises a U-shaped loop around the circuit.
Claim 6
Dependent Claim
17 words
The invention as defined in claim 1 wherein the antenna comprises a complete loop around the circuit.
Claim 7
Dependent Claim
17 words
The invention as defined in claim 1 wherein the antenna lies in the plane of the substrate.
Claim 8
Dependent Claim
28 words
The invention as defined in claim 1 wherein: the leads are attached to the circuit below the substrate; and the antenna lies above the plane of the substrate.
Claim 9
Dependent Claim
67 words
In combination: 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.
Claim 10
Dependent Claim
67 words
In combination: 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.
Claim 11
Dependent Claim
17 words
The invention as defined in claim 8 wherein the antenna comprises a foil strip along the wall.
Claim 12
Dependent Claim
17 words
The invention as defined in claim 8 wherein the antenna comprises a conductive paste along the wall.
References Cited (Backward Citations)
US5111199A
Cited
US5321240A
Cited
US5428214A
Cited
US5612532A
Cited
US5598032A
Cited
US5627552A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-01-03 | 2003-07-05 | 2004-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-01-03 | 2007-07-05 | 2008-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-01-03 | 2011-07-05 | 2012-01-04 | $7700.00 | Window Closed / Lapsed |