US3290625A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Yig filter
Assignee: Texas Instruments Inc
•
Filing: 1964-02-27
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Granted: 1966-12-06
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Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Bartram
- 👤 Richard C Brown
- 👤 Joe A Simpson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:36
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/215; H01P1/218
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
125 words
IN A HIGH FREQUENCY TRANSMISSION CHANNEL HAVING INPUT AND OUTPUT PATHS EACH HAVING A CENTRAL CONDUCTOR, A FILTER WHICH COMPRISES; (A) A FIRST YIG SPHERE ENCOMPASSED BY THE END PORTION OF THE FIRST OF SAID CENTRAL CONDUCTORS, (B) A SECOND YIG OF SPHERICAL SHAPE ENCOMPASSED BY THE END PORTION OF THE SECOND OF SAID CENTRAL CONDUCTORS WHEREIN SAID YIG''S ARE ALIGNED ON A COMMON AXIS, (E) AN ELECTROSTATIC SHIELD BETWEEN SAID YIG''S HAVING A HOLE THERETHROUGH CENTERED ON SAID AXIS, AND (D) MEANS FOR IMPRESSING A VARIABLE MAGNETIC FIELD WHICH PASSES THROUGH THE SPHERES AT RIGHT ANGLES TO SAID AXIS TO VARY THE CENTER FREQUENCY OF THE BAND OF ELECTROMAGNETIC ENERGY TO BE TRANSMITTED FROM ONE OF SAID CONDUCTORS TO THE OTHER THROUGH SAID HOLE.
Claim 2
Dependent Claim
125 words
IN A HIGH FREQUENCY TRANSMISSION CHANNEL HAVING INPUT AND OUTPUT PATHS EACH HAVING A CENTRAL CONDUCTOR, A FILTER WHICH COMPRISES; (A) A FIRST YIG SPHERE ENCOMPASSED BY THE END PORTION OF THE FIRST OF SAID CENTRAL CONDUCTORS, (B) A SECOND YIG OF SPHERICAL SHAPE ENCOMPASSED BY THE END PORTION OF THE SECOND OF SAID CENTRAL CONDUCTORS WHEREIN SAID YIG''S ARE ALIGNED ON A COMMON AXIS, (E) AN ELECTROSTATIC SHIELD BETWEEN SAID YIG''S HAVING A HOLE THERETHROUGH CENTERED ON SAID AXIS, AND (D) MEANS FOR IMPRESSING A VARIABLE MAGNETIC FIELD WHICH PASSES THROUGH THE SPHERES AT RIGHT ANGLES TO SAID AXIS TO VARY THE CENTER FREQUENCY OF THE BAND OF ELECTROMAGNETIC ENERGY TO BE TRANSMITTED FROM ONE OF SAID CONDUCTORS TO THE OTHER THROUGH SAID HOLE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |