US3202996A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Log-periodic rhombic antenna array
Assignee: Control Data Corp
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Filing: 1962-12-26
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Granted: 1965-08-24
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Expires: 1982-12-26
Abstract
No abstract record available.
Inventors
- 👤 Robert L Tanner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:26
CPC Classifications
H; H01; H01Q; H01Q11/00; H01Q11/02; H01Q11/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
AN ANTENNA ARRAY COMPRISING FIRST AND SECOND FEED LINES OF FINITE LENGTH, FIRST AND SECOND INPUT TERMINALS ON SAID FIRST AND SECOND FEED LINES DISPOSED INTERMEDIATE THEIR ENDS, GENERATOR MEANS CONNECTED BETWEEN SAID INPUT TERMINALS, A PLURALITY OF RHOMBIC ELEMENTS EACH RESPECTIVELY INCLUDING FIRST AND SECOND IDENTICAL RHOMBIC HALVES EACH COMPRISED OF A PAIR OF WIRES OF EQUAL LENGTH, EACH OF SAID PLURALITY OF RHOMBIC ELEMENTS BEING OF IDENTICAL SHAPE BUT OF A DIFFERENT SIZE, AND MEANS CONCENTRICALLY CONNECTING SAID FIRST RHOMBIC HALVES TO SAID FIRST FEED LINE AND SAID SECOND RHOMBIC HALVES TO SAID SECOND FEED LINE.
Claim 2
Dependent Claim
98 words
AN ANTENNA ARRAY COMPRISING FIRST AND SECOND FEED LINES OF FINITE LENGTH, FIRST AND SECOND INPUT TERMINALS ON SAID FIRST AND SECOND FEED LINES DISPOSED INTERMEDIATE THEIR ENDS, GENERATOR MEANS CONNECTED BETWEEN SAID INPUT TERMINALS, A PLURALITY OF RHOMBIC ELEMENTS EACH RESPECTIVELY INCLUDING FIRST AND SECOND IDENTICAL RHOMBIC HALVES EACH COMPRISED OF A PAIR OF WIRES OF EQUAL LENGTH, EACH OF SAID PLURALITY OF RHOMBIC ELEMENTS BEING OF IDENTICAL SHAPE BUT OF A DIFFERENT SIZE, AND MEANS CONCENTRICALLY CONNECTING SAID FIRST RHOMBIC HALVES TO SAID FIRST FEED LINE AND SAID SECOND RHOMBIC HALVES TO SAID SECOND FEED LINE.
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) | 1968-08-23 | 1969-02-22 | 1969-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-23 | 1973-02-22 | 1973-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-23 | 1977-02-22 | 1977-08-24 | $7700.00 | Window Closed / Lapsed |