Patent US3145356A successfully refreshed from Google Patents.
US3145356A
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Different sized waveguides coupled by a narrow tapered dielectric rod
Assignee: National Research Development Corp UK
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Filing: 1961-10-06
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Granted: 1964-08-18
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Expires: 1981-10-06
Abstract
No abstract record available.
Inventors
- 👤 Clarricoats Peter John Bell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 01:29
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01P5/082; H01P5/02; H01P5/022; H01P5/024
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
128 words
APPARATUS FOR COUPLING TOGETHER TWO ELECTROMAGNETIC WAVEGUIDES OF DIFFERENT CROSS-SECTIONAL DIMENSIONS COMPRISING A ROD OF DIELECTRIC MATERIAL EXTENDING BETWEEN THE TWO WAVEGUIDES, THE ROD HAVING SUCH CROSS-SECTION AND PERMITTIVITY THAT THE WAVELENGTH OF ELECTROMAGNETIC ENERGY PROPAGATED IN THE ROD IS LESS THAN THE WAVELENGTH OF SUCH ENERGY IN FREE SPACE AND IN WHICH THE CROSS-SECTION OF THE ROD IS SUFFICIENTLY LARGE TO PERMIT SUBSTANTIALLY THE WHOLE OF THE ENERGY OF A WAVE TRANSMITTED ACROSS THE COUPLING TO BE CONCENTRATED IN THE ROD, WITHOUT BEING SO LARGE RELATIVE TO THE CROSS-SECTION OF THE SMALLER WAVEGUIDE AS TO ALLOW THE WALLS OF SAID SMALLER WAVEGUIDE TO APPRECIABLY AFFECT THE PROPAGATION CHARACTERISTICS OF THE ENERGY CONCENTRATED IN THE ROD, WHEREBY WAVE ENERGY MAY BE PROPAGATED THROUGH SAID COUPLING IN EITHER SENSE.
Claim 2
Dependent Claim
128 words
APPARATUS FOR COUPLING TOGETHER TWO ELECTROMAGNETIC WAVEGUIDES OF DIFFERENT CROSS-SECTIONAL DIMENSIONS COMPRISING A ROD OF DIELECTRIC MATERIAL EXTENDING BETWEEN THE TWO WAVEGUIDES, THE ROD HAVING SUCH CROSS-SECTION AND PERMITTIVITY THAT THE WAVELENGTH OF ELECTROMAGNETIC ENERGY PROPAGATED IN THE ROD IS LESS THAN THE WAVELENGTH OF SUCH ENERGY IN FREE SPACE AND IN WHICH THE CROSS-SECTION OF THE ROD IS SUFFICIENTLY LARGE TO PERMIT SUBSTANTIALLY THE WHOLE OF THE ENERGY OF A WAVE TRANSMITTED ACROSS THE COUPLING TO BE CONCENTRATED IN THE ROD, WITHOUT BEING SO LARGE RELATIVE TO THE CROSS-SECTION OF THE SMALLER WAVEGUIDE AS TO ALLOW THE WALLS OF SAID SMALLER WAVEGUIDE TO APPRECIABLY AFFECT THE PROPAGATION CHARACTERISTICS OF THE ENERGY CONCENTRATED IN THE ROD, WHEREBY WAVE ENERGY MAY BE PROPAGATED THROUGH SAID COUPLING IN EITHER SENSE.
References Cited (Backward Citations)
US2207845A
Cited
US2292496A
Cited
US2422191A
Cited
US2503549A
Cited
US2625605A
Cited
US2742612A
Cited
US2802994A
Cited
US2906974A
Cited
US3010083A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-08-18 | 1968-02-17 | 1968-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-08-18 | 1972-02-17 | 1972-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-08-18 | 1976-02-17 | 1976-08-18 | $7700.00 | Window Closed / Lapsed |