US3308456A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic scanning radar system
Assignee: Raytheon Co
•
Filing: 1958-01-03
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Granted: 1967-03-07
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Expires: 1978-01-03
Abstract
No abstract record available.
Inventors
- 👤 Berl D Levenson
- 👤 William R Welty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:45
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/42; G01S13/426; H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30; H01Q3/34; H01Q3/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
191 words
AN ELECTRONIC SCANNING RADAR SYSTEM INCLUDING APPARATUS FOR PRODUCING A SYNTHESIZED FAN-SHAPED RECEIVING BEAM, SAID APPARATUS COMPRISING A LINEAR ARRAY OF ELEMENTS; A MIXER CORRESPONDING TO EACH ONE OF SAID ELEMENTS OF SAID LINEAR ARRAY, EACH OF SAID MIXERS HAVING FIRST AND SECOND INPUT CIRCUITS AND AN OUTPUT CIRCUIT, SAID FIRST INPUT CIRCUIT OF EACH MIXER BEING COUPLED TO ITS CORRESPONDING ELEMENT; MEANS INTERCONNECTED BETWEEN THE OUTPUT CIRCUITS OF EACH TWO MIXERS WHICH MIXERS CORRESPOND TO ADJACENT PAIRS OF ELEMENTS OF SAID LINEAR ARRAY FOR INTRODUCING A PREDETERMINED PHASE DELAY IN A SIGNAL PROPAGATED THEREBETWEEN; DELAY LINE MEANS HAVING PERIODICALLY SPACED POINTS THEREALONG, SUCCESSIVE ONES OF WHICH CORRESPOND TO SUCCESSIVE ELEMENTS OF SAID LINEAR ARRAY; MEANS COUPLING THE SECOND INPUT CIRCUIT OF EACH OF SAID MIXERS TO SAID DELAY LINE MEANS AT THE SPACED POINT THEREALONG CORRESPONDING THERETO; AND MEANS FOR ENERGIZING SAID DELAY LINE MEANS AT A SELECTED POINT THEREALONG WITH ELECTROMAGNETIC ENERGY OF A PREDETERMINED FREQUENCY WHEREBY THE SIGNAL APPEARING ON THE OUTPUT CIRCUIT OF THE MIXER ASSOCIATED WITH THE ELEMENT WHICH CORRESPONDS TO SAID SELECTED POINT ALONG SAID DELAY LINE MEANS CONSTITUTES THE OUTPUT SIGNAL FROM SAID APPARATUS.
Claim 2
Dependent Claim
191 words
AN ELECTRONIC SCANNING RADAR SYSTEM INCLUDING APPARATUS FOR PRODUCING A SYNTHESIZED FAN-SHAPED RECEIVING BEAM, SAID APPARATUS COMPRISING A LINEAR ARRAY OF ELEMENTS; A MIXER CORRESPONDING TO EACH ONE OF SAID ELEMENTS OF SAID LINEAR ARRAY, EACH OF SAID MIXERS HAVING FIRST AND SECOND INPUT CIRCUITS AND AN OUTPUT CIRCUIT, SAID FIRST INPUT CIRCUIT OF EACH MIXER BEING COUPLED TO ITS CORRESPONDING ELEMENT; MEANS INTERCONNECTED BETWEEN THE OUTPUT CIRCUITS OF EACH TWO MIXERS WHICH MIXERS CORRESPOND TO ADJACENT PAIRS OF ELEMENTS OF SAID LINEAR ARRAY FOR INTRODUCING A PREDETERMINED PHASE DELAY IN A SIGNAL PROPAGATED THEREBETWEEN; DELAY LINE MEANS HAVING PERIODICALLY SPACED POINTS THEREALONG, SUCCESSIVE ONES OF WHICH CORRESPOND TO SUCCESSIVE ELEMENTS OF SAID LINEAR ARRAY; MEANS COUPLING THE SECOND INPUT CIRCUIT OF EACH OF SAID MIXERS TO SAID DELAY LINE MEANS AT THE SPACED POINT THEREALONG CORRESPONDING THERETO; AND MEANS FOR ENERGIZING SAID DELAY LINE MEANS AT A SELECTED POINT THEREALONG WITH ELECTROMAGNETIC ENERGY OF A PREDETERMINED FREQUENCY WHEREBY THE SIGNAL APPEARING ON THE OUTPUT CIRCUIT OF THE MIXER ASSOCIATED WITH THE ELEMENT WHICH CORRESPONDS TO SAID SELECTED POINT ALONG SAID DELAY LINE MEANS CONSTITUTES THE OUTPUT SIGNAL FROM SAID APPARATUS.
References Cited (Backward Citations)
US2426460A
Cited
US2430296A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |