US3277488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Antenna decoupling by means of a lossy dielectric slab
Assignee: Individual
•
Filing: 1964-07-27
•
Granted: 1966-10-04
•
Expires: 1984-07-27
Abstract
No abstract record available.
Inventors
- 👤 John G Hoffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:32
CPC Classifications
H; H01; H01Q; H01Q17/00; H01Q17/001
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
AN ANTENNA DECOUPLING SYSTEM FOR REDUCING THE COUPLING BETWEEN FLUSH MOUNTED SLOT-TYPE ANTENNAS WITH OUT PRODUCING DETERIORATION IN THE ANTENNAS'' RADIATION PATTERMS COMPRISING: (A) A COMMON CONDUCTING GROUND PLANE, (B) A PAIR OF LONGITUDINAL SLOT-TYPE ANTENNAS FLUSH MOUNTED IN SAID COMMON CONDUCTING GROUND PLANE, (C) A THIN SLAB OF LOSSY DIELECTRIC MOUNTED ON SAID COMMON CONDUCTING GROUND PLANE BETWEEN SAID FLUSH MOUNTED ANTENNAS, (D) SAID LOSSY DIELECTRIC SLAB INCREASING THE SURFACE IMPEDANCE OF THE GROUND PLANE BETWEEN THE ANTENNAS AND DISSIPATING ENERGY COUPLED INTO THE DIELECTRIC.
Claim 2
Dependent Claim
86 words
AN ANTENNA DECOUPLING SYSTEM FOR REDUCING THE COUPLING BETWEEN FLUSH MOUNTED SLOT-TYPE ANTENNAS WITH OUT PRODUCING DETERIORATION IN THE ANTENNAS'' RADIATION PATTERMS COMPRISING: (A) A COMMON CONDUCTING GROUND PLANE, (B) A PAIR OF LONGITUDINAL SLOT-TYPE ANTENNAS FLUSH MOUNTED IN SAID COMMON CONDUCTING GROUND PLANE, (C) A THIN SLAB OF LOSSY DIELECTRIC MOUNTED ON SAID COMMON CONDUCTING GROUND PLANE BETWEEN SAID FLUSH MOUNTED ANTENNAS, (D) SAID LOSSY DIELECTRIC SLAB INCREASING THE SURFACE IMPEDANCE OF THE GROUND PLANE BETWEEN THE ANTENNAS AND DISSIPATING ENERGY COUPLED INTO THE DIELECTRIC.
References Cited (Backward Citations)
US2998602A
Cited
US2981949A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-10-03 | 1970-04-04 | 1970-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-03 | 1974-04-04 | 1974-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-03 | 1978-04-04 | 1978-10-04 | $7700.00 | Window Closed / Lapsed |