US3273082A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temperature compensated reciprocal ferrite phase shifter
Assignee: Lignes Telegraphiques et Telephoniques LTT SA
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Filing: 1963-12-11
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Granted: 1966-09-13
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Expires: 1983-12-11
Abstract
No abstract record available.
Inventors
- 👤 Chiron Bernard Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:52
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/18; H01P1/19
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
VARIABLE PHASE SHIFTING PHASE SHIFTER FOR ULTRA-HIGHFREQUENCY ELECTROMAGNETIC WAVES, INCLUDING A PORTION OF WAVEGUIDE WITHIN WHICH IS LOCATED AT LEAST ONE ELEMENT OF FERROMAGNETIC MATERIAL FOR ULTRA-HIGH-FREQUENCIES AND HAVING GYROMAGNETIC PROPERTIES SUCH AS FERRITE, A COIL WOUND AROUND SAID WAVEGUIDE THROUGH WHICH IS ADAPTED TO PASS A D.C. CURRENT WHICH CAN BE MADE TO VARY IN INTENSITY TO VARY THE PHASE SHIFT OF THE PHASE SHIFTER, AND AT LEAST ONE TUBULAR FERRITE CORE, CALLED "FIELD COMPENSATION" FERRITE CORE, OF LARGE VARIATION IN PERMEABILITY WITH VARIATION IN TEMPERATURE LOCATED BETWEEN SAID WAVEGUIDE AND SAID COIL WOUND AROUND SAID WAVEGUIDE, THE DIMENSIONS OF SAID FERRITE CORE OR CORES AND THE TYPE OF FERRITE BEING SELECTED SUCH THAT THE VARIATION IN PHASE SHIFT WITH VARIATION IN TEMPERATURE IS APPROXIMATELY COMPENSATED OVER A LARGE TEMPERATURE RANGE.
Claim 2
Dependent Claim
132 words
VARIABLE PHASE SHIFTING PHASE SHIFTER FOR ULTRA-HIGHFREQUENCY ELECTROMAGNETIC WAVES, INCLUDING A PORTION OF WAVEGUIDE WITHIN WHICH IS LOCATED AT LEAST ONE ELEMENT OF FERROMAGNETIC MATERIAL FOR ULTRA-HIGH-FREQUENCIES AND HAVING GYROMAGNETIC PROPERTIES SUCH AS FERRITE, A COIL WOUND AROUND SAID WAVEGUIDE THROUGH WHICH IS ADAPTED TO PASS A D.C. CURRENT WHICH CAN BE MADE TO VARY IN INTENSITY TO VARY THE PHASE SHIFT OF THE PHASE SHIFTER, AND AT LEAST ONE TUBULAR FERRITE CORE, CALLED "FIELD COMPENSATION" FERRITE CORE, OF LARGE VARIATION IN PERMEABILITY WITH VARIATION IN TEMPERATURE LOCATED BETWEEN SAID WAVEGUIDE AND SAID COIL WOUND AROUND SAID WAVEGUIDE, THE DIMENSIONS OF SAID FERRITE CORE OR CORES AND THE TYPE OF FERRITE BEING SELECTED SUCH THAT THE VARIATION IN PHASE SHIFT WITH VARIATION IN TEMPERATURE IS APPROXIMATELY COMPENSATED OVER A LARGE TEMPERATURE RANGE.
References Cited (Backward Citations)
DE1073049B
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |