US3103011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Inductively loaded folded antenna
Assignee: Individual
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Filing: 1961-09-18
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Granted: 1963-09-03
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Expires: 1981-09-18
Abstract
No abstract record available.
Inventors
- 👤 Elwin W Seeley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 01:36
CPC Classifications
H; H01; H01Q; H01Q9/00; H01Q9/04; H01Q9/30; H01Q9/42
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
235 words
AN ANTENNA IN WHICH THE RESONANT LENGTH AND RESONANT RADIATION CAN BE VARIED COMPRISING FIRST AND SECOND PARALLEL SPACED-APART CONDUCTORS MOUNTED AT ONE END THEREOF NORMAL TO A CONDUCTING GROUND PLANE AND CONDUCTIVELY CONNECTED TOGETHER AT THE OPPOSITE END, SAID FIRST AND SECOND CONDUCTORS EACH HAVING AN INDUCTANCE COIL IN SERIES THEREWITH ALONG THE LENGTH THEREOF FOR INDUCTIVELY LOADING SAID ANTENNA, THE OPTIMUM POSITION OF SAID INDUCTANCE COILS ALONG SAID FIRST AND SECOND CONDUCTORS FOR THE LEAST AMOUNT OF POWER LOSS BEING A DISTANCE APPROXIMATELY TWO-THIRDS OF THE LENGTH OF EACH CONDUCTOR FROM ITS GROUND PLANE END, SAID FIRST CONDUCTOR BEING GROUNDED TO SAID GROUND PLANE AND SAID SECOND CONDUCTOR BEING DRIVEN BY ENERGY FED THERETO BY MEANS OF A COAXIAL FEED LINE CONNECTED THEREWITH, THE GROUNDED FIRST CONDUCTOR AND THE DRIVEN SECOND CONDUCTOR HAVING DIFFERENT DIAMETERS AND THE RESONANT RADIATION OF THE ANTENNA BEING VARIABLE BY CHANGING THE RATIO OF THE DIAMETERS OF THE FIRST CONDUCTOR TO THE SECOND CONDUCTOR; THE RESONANT LENGTH OF SAID ANTENNA BEING ADJUSTABLE BY VARYING THE VALUE OF THE INDUCTANCE COILS, THE DISTANCE THE INDUCTANCE COILS ARE POSITIONED FROM SAID GROUNDED PLANE, AND THE AXIAL SPACING OF SAID FIRST AND SECOND CONDUCTORS; SAID ANTENNA BEING CAPACITIVELY LOADED BY MEANS OF SAID OPPOSITE END OF EITHER OF SAID FIRST AND SECOND CONDUCTORS HAVING AN ARRAY OF A PLURALITY OF ELEMENTS MOUNTED THEREON AND EXTENDING RADIALLY OUTWARD THEREFROM IN SPOKE-LIKE FORM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |