Patent US6066866A successfully refreshed from Google Patents.
Patent US5508669A successfully refreshed from Google Patents.
US5508669A
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US
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High-frequency signal transmission system
Assignee: Individual
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Filing: 1994-02-24
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Granted: 1996-04-16
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Expires: 2014-02-24
Abstract
Abstract A high-frequency signal transmission system for use as a microwave antenna or filter has a plurality of cascaded conical or planar inner conductors each having a unitary exponential gradient, a pair of circular lines or impedance-matching lines having identical dimensions and connected respectively to opposite ends of the conical or planar inner conductor for providing a predetermined characteristic impedance, and a cylindrical or rectangular tubular outer conductor covering the conical or planar inner conductor and the circular or impedance-matching lines with a cavity defined between the conical or planar inner conductor and the cylindrical or rectangular tubular outer conductor.
Inventors
- 👤 Goro Sugawara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:35
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/201; H01P1/203; H01P1/2039; H01P1/202; H01Q; H01Q11/00; H01Q11/02; H01Q13/00; H01Q13/08
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
89 words
A high-frequency signal transmission system comprising: at least one conical inner conductor having a unitary exponential gradient, and having a normalized characteristic impedance at its center represented by two cascaded circuits of a conjugate-matched uniform-impedance line; a pair of circular lines having identical dimensions and connected respectively to opposite ends of said conical inner conductor for providing a predetermined characteristic impedance; and a cylindrical outer conductor covering said conical inner conductor and said circular lines with a cavity defined between said conical inner conductor and said cylindrical outer conductor.
Claim 2
Dependent Claim
89 words
A high-frequency signal transmission system comprising: at least one conical inner conductor having a unitary exponential gradient, and having a normalized characteristic impedance at its center represented by two cascaded circuits of a conjugate-matched uniform-impedance line; a pair of circular lines having identical dimensions and connected respectively to opposite ends of said conical inner conductor for providing a predetermined characteristic impedance; and a cylindrical outer conductor covering said conical inner conductor and said circular lines with a cavity defined between said conical inner conductor and said cylindrical outer conductor.
Claim 3
Dependent Claim
28 words
A high-frequency signal transmission system according to claim 1, including a plurality of cascaded conical inner conductors each having a unitary exponential gradient as said conical inner conductor.
Claim 4
Dependent Claim
20 words
A high-frequency signal transmission system according to claim 1, wherein said conical inner conductor comprises a natural base exponential line.
Claim 5
Dependent Claim
36 words
A high-frequency signal transmission system according to claim 1, further comprising a pair of coaxial connectors connected respectively to the opposite ends of said conical inner conductor and to opposite ends of said cylindrical outer conductor.
Claim 6
Dependent Claim
33 words
A high-frequency signal transmission system according to claim 1, wherein said conical inner conductor is made of a synthetic resin material with an electrically conductive layer disposed on an outer circumferential surface thereof.
Claim 7
Dependent Claim
26 words
A high-frequency signal transmission system according to claim 1, wherein said conical inner conductor comprises a hollow conical inner conductor made of an electrically conductive material.
Claim 8
Dependent Claim
29 words
A high-frequency signal transmission system according to claim 1, wherein said conical inner conductor has a characteristic impedance of 50Ω at a point located at half the length thereof.
Claim 9
Dependent Claim
95 words
A high-frequency signal transmission system comprising: at least one planar inner conductor having opposite sides each having a unitary exponential gradient, and having a normalized characteristic impedance at its center represented by two cascaded circuits of a conjugate-mated uniform-impedance line; a pair of impedance-matching lines having identical dimensions and connected respectively to opposite ends of said planar inner conductor for providing a predetermined characteristic impedance; and a rectangular tubular outer conductor covering said planar inner conductor and said impedance-matching lines with a cavity defined between said planar inner conductor and said rectangular tubular outer conductor.
Claim 10
Dependent Claim
95 words
A high-frequency signal transmission system comprising: at least one planar inner conductor having opposite sides each having a unitary exponential gradient, and having a normalized characteristic impedance at its center represented by two cascaded circuits of a conjugate-mated uniform-impedance line; a pair of impedance-matching lines having identical dimensions and connected respectively to opposite ends of said planar inner conductor for providing a predetermined characteristic impedance; and a rectangular tubular outer conductor covering said planar inner conductor and said impedance-matching lines with a cavity defined between said planar inner conductor and said rectangular tubular outer conductor.
Claim 11
Dependent Claim
20 words
A high-frequency signal transmission system according to claim 8, wherein said planar inner conductor comprises a natural base exponential line.
Claim 12
Dependent Claim
32 words
A high-frequency signal transmission system according to claim 8, including a plurality of cascaded planar inner conductors each having opposite sides each having a unitary exponential gradient as said planar inner conductor.
Claim 13
Dependent Claim
37 words
A high-frequency signal transmission system according to claim 8, further comprising a pair of coaxial connectors connected respectively to the opposite ends of said planar inner conductor and to opposite ends of said rectangular tubular outer conductor.
Claim 14
Dependent Claim
30 words
A high-frequency signal transmission system according to claim 1 wherein diameters of said pair circular lines are equal to the diameter of the intermediate portion of said conical inner conductor.
Claim 15
Dependent Claim
30 words
A high-frequency signal transmission system according to claim 2 wherein diameters of said pair circular lines are equal to the diameter of the intermediate portion of said conical inner conductor.
Claim 16
Dependent Claim
30 words
A high-frequency signal transmission system according to claim 3 wherein diameters of said pair circular lines are equal to the diameter of the intermediate portion of said conical inner conductor.
Claim 17
Dependent Claim
30 words
A high-frequency signal transmission system according to claim 4 wherein diameters of said pair circular lines are equal to the diameter of the intermediate portion of said conical inner conductor.
Claim 18
Dependent Claim
30 words
A high-frequency signal transmission system according to claim 5 wherein diameters of said pair circular lines are equal to the diameter of the intermediate portion of said conical inner conductor.
Claim 19
Dependent Claim
30 words
A high-frequency signal transmission system according to claim 6 wherein diameters of said pair circular lines are equal to the diameter of the intermediate portion of said conical inner conductor.
Claim 20
Dependent Claim
30 words
A high-frequency signal transmission system according to claim 7 wherein diameters of said pair circular lines are equal to the diameter of the intermediate portion of said conical inner conductor.
Claim 21
Dependent Claim
31 words
A high-frequency signal transmission system according to claim 8 wherein widths of said pair of impedance-matching lines are equal to the diameter of the intermediate portion of said planar inner conductor.
Claim 22
Dependent Claim
31 words
A high-frequency signal transmission system according to claim 9 wherein widths of said pair of impedance-matching lines are equal to the diameter of the intermediate portion of said planar inner conductor.
Claim 23
Dependent Claim
31 words
A high-frequency signal transmission system according to claim 10 wherein widths of said pair of impedance-matching lines are equal to the diameter of the intermediate portion of said planar inner conductor.
Claim 24
Dependent Claim
31 words
A high-frequency signal transmission system according to claim 11 wherein widths of said pair of impedance-matching lines are equal to the diameter of the intermediate portion of said planar inner conductor.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1999-04-16 | 1999-10-16 | 2000-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2003-04-16 | 2003-10-16 | 2004-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2007-04-16 | 2007-10-16 | 2008-04-16 | $7700.00 | Window Closed / Lapsed |