US3193831A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Logarithmic periodic antenna
Assignee: Commscope Technologies LLC
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Filing: 1961-11-22
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Granted: 1965-07-06
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Expires: 1981-11-22
Abstract
No abstract record available.
Inventors
- 👤 Richard F H Yang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:48
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/10; H01Q19/12; H01Q19/15; H01Q11/00; H01Q11/02; H01Q11/10; H01Q11/105
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
101 words
IN A LOGARITHMIC PERIODIC ANTENNA COMPRISING A PAIR OF TAPERED PLANE RADIATING PORTIONS DISPOSED AT AN ANGLE AND FED AT THE APEX, THE IMPROVED CONSTRUCTION HAVING A COAXIAL TRANSMISSION FEED LINE IN THE PLANE BISECTING THE ANGLE BETWEEN THE TWO PORTIONS AND EACH PORTION HAVING A GROUNDED CONDUCTOR ELEMENT CONNECTED TO THE OUTER CONDUCTOR OF THE TRANSMISSION LINE AND COMPLEMENTARY FED CONDUCTOR ELEMENT CONNECTED TO THE INNER CONDUCTOR OF THE TRANSMISSION LINE, THE GROUNDED CONDUCTOR ELEMENTS AND THE FED CONDUCTOR ELEMENTS, RESPECTIVELY, OF THE TWO PORTIONS BEING OF SUBSTANTIALLY INDENTICAL CONSTRUCTION BUT HAVING MIRROR-IMAGE SYMMETRY WITH RESPECT TO SAID BISECTING PLANE.
Claim 2
Dependent Claim
101 words
IN A LOGARITHMIC PERIODIC ANTENNA COMPRISING A PAIR OF TAPERED PLANE RADIATING PORTIONS DISPOSED AT AN ANGLE AND FED AT THE APEX, THE IMPROVED CONSTRUCTION HAVING A COAXIAL TRANSMISSION FEED LINE IN THE PLANE BISECTING THE ANGLE BETWEEN THE TWO PORTIONS AND EACH PORTION HAVING A GROUNDED CONDUCTOR ELEMENT CONNECTED TO THE OUTER CONDUCTOR OF THE TRANSMISSION LINE AND COMPLEMENTARY FED CONDUCTOR ELEMENT CONNECTED TO THE INNER CONDUCTOR OF THE TRANSMISSION LINE, THE GROUNDED CONDUCTOR ELEMENTS AND THE FED CONDUCTOR ELEMENTS, RESPECTIVELY, OF THE TWO PORTIONS BEING OF SUBSTANTIALLY INDENTICAL CONSTRUCTION BUT HAVING MIRROR-IMAGE SYMMETRY WITH RESPECT TO SAID BISECTING PLANE.
References Cited (Backward Citations)
US3005986A
Cited
US2977597A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-05 | 1969-01-04 | 1969-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-05 | 1973-01-04 | 1973-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-05 | 1977-01-04 | 1977-07-06 | $7700.00 | Window Closed / Lapsed |