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US4293833A
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Millimeter wave transmission line using thallium bromo-iodide fiber
Assignee: The AT&T MVPD Group LLC
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Filing: 1979-11-01
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Granted: 1981-10-06
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Expires: 1999-11-01
Abstract
Abstract Millimeter wave transmission lines are disclosed for propagating electromagnetic waves of a wavelength ranging from about 10 mm to about 0.4 mm. The transmission lines comprise a fiber of co-crystallized thallium bromo-iodide consisting of from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide. The fiber may be cladded with a dielectric material having a dielectric constant less than that of the fiber. A number of alternate fiber and cladding cross-sectional configurations are disclosed including circular, square, rectangular, and elliptical.
Inventors
- 👤 Adrian E. Popa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 10:49
CPC Classifications
H; H01; H01P; H01P3/00; H01P3/16
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
58 words
A transmission line comprising: a fiber of co-crystalized thallium bromo-iodide consisting of from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide, and means for launching electromagnetic waves of a wavelength ranging from about 10 millimeters to about 0.4 millimeter onto said fiber.
Claim 2
Dependent Claim
58 words
A transmission line comprising: a fiber of co-crystalized thallium bromo-iodide consisting of from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide, and means for launching electromagnetic waves of a wavelength ranging from about 10 millimeters to about 0.4 millimeter onto said fiber.
Claim 3
Dependent Claim
23 words
A transmission line according to claim 1 wherein said fiber has a transverse extent ranging from about 0.1 millimeter to about 3 millimeters.
Claim 4
Dependent Claim
33 words
A transmission line according to claim 1 wherein a cladding of a dielectric material having a dielectric constant less than that of said fiber is disposed about the lateral surface of said fiber.
Claim 5
Dependent Claim
22 words
A transmission line according to claim 3 wherein said fiber has a circular cross-section, and said cladding has a circular cross-sectional perimeter.
Claim 6
Dependent Claim
22 words
A transmission line according to claim 3 wherein said fiber has a square cross-section, and said cladding has a square cross-sectional perimeter.
Claim 7
Dependent Claim
22 words
A transmission line according to claim 3 wherein said fiber has a square cross-section, and said cladding has a circular cross-sectional perimeter.
Claim 8
Dependent Claim
22 words
A transmission line according to claim 3 wherein said fiber has an elliptical cross-section, and said cladding has an elliptical cross-sectional perimeter.
Claim 9
Dependent Claim
22 words
A transmission line according to claim 3 wherein said fiber has an elliptical cross-section, and said cladding has a circular cross-sectional perimeter.
Claim 10
Dependent Claim
22 words
A transmission line according to claim 3 wherein said fiber has a rectangular cross-section, and said cladding has a rectangular cross-sectional perimeter.
Claim 11
Dependent Claim
22 words
A transmission line according to claim 3 wherein said fiber has a rectangular cross-section, and said cladding has a circular cross-sectional perimeter.
Claim 12
Dependent Claim
36 words
A transmission line according to any of claims 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10 wherein said electromagnetic waves are of a wavelength ranging from about 8.6 millimeters to about 3.2 millimeters.
Claim 13
Independent Claim
65 words
A method for transmitting millimeter wave energy comprising launching electromagnetic waves of a wavelength ranging from about 10 millimeters to about 0.4 millimeter onto a fiber of co-crystallized thallium bromo-iodide consisting of from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide, and removing said electromagnetic waves from said fiber.
Claim 14
Independent Claim
65 words
A method for transmitting millimeter wave energy comprising launching electromagnetic waves of a wavelength ranging from about 10 millimeters to about 0.4 millimeter onto a fiber of co-crystallized thallium bromo-iodide consisting of from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide, and removing said electromagnetic waves from said fiber.
Claim 15
Dependent Claim
23 words
A method according to claim 12 wherein said electromagnetic waves are of a wavelength ranging from about 8.6 millimeters to about 3.2 millimeters.
Claim 16
Dependent Claim
61 words
A new use for a KRS-5 waveguide which is comprised of co-crystalized thallium bromo-iodide having from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide, wherein said new use comprises: utilizing said KRS-5 waveguide to transmit electromagnetic energy in the 0.4 to 10 millimeter wavelength range.
Claim 17
Dependent Claim
61 words
A new use for a KRS-5 waveguide which is comprised of co-crystalized thallium bromo-iodide having from about 40 mole percent to about 46 mole percent thallium bromide and from about 60 mole percent to about 54 mole percent thallium iodide, wherein said new use comprises: utilizing said KRS-5 waveguide to transmit electromagnetic energy in the 0.4 to 10 millimeter wavelength range.
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) | 1984-10-05 | 1985-04-06 | 1985-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-05 | 1989-04-06 | 1989-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-05 | 1993-04-06 | 1993-10-06 | $7700.00 | Window Closed / Lapsed |