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US3103011A Expired / Lapsed US ⏱️ 0.0 years remaining

Inductively loaded folded antenna

Assignee: Individual
•
Filing: 1961-09-18
•
Granted: 1963-09-03
•
Expires: 1981-09-18
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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)

CH220059A Cited
US2495399A Cited
GB653876A Cited
US2998604A Cited

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

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