Patent US3253342A successfully refreshed from Google Patents.
US3568110A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular power combining techniques using solid state devices for dc-to-rf energy conversion
Assignee: Fairchild Semiconductor Corp
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Filing: 1969-06-16
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Granted: 1971-03-02
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Expires: 1989-06-16
Abstract
Abstract Microwave power sources capable of operating over different frequency ranges and each containing a plurality of active solid state devices for direct conversion of DC energy to RF energy, are constructed by tandemly-connecting power source modules selected from a limited number of module types. Each module, which is merely bolted to adjacent modules, possesses a microwave cavity containing a single symmetrically or asymmetrically mounted active solid state device.
Inventors
- 👤 Ferdo Ivanek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:22
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/04; H03F3/10; H03F3/12; H03B; H03B9/00; H03B9/12; H03B9/14; H03B9/143
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
131 words
Microwave power source comprising: a first and a second tandemly-connected module, said first and second module each comprising a housing containing at least two parallel opposite faces, a microwave waveguide cavity within said housing opening on each of said two parallel opposite faces; and an active solid state device selectively placed within said cavity, such that its longitudinal axis is parallel to said two parallel faces, the solid state device in said first module being symmetrically placed equidistant from each of said two parallel faces, while the solid state device in said second module is asymmetrically placed relative to said two parallel faces; and means for aligning and joining said first and second second modules such that the cavities in each of said modules are aligned to form a microwave waveguide.
Claim 2
Dependent Claim
131 words
Microwave power source comprising: a first and a second tandemly-connected module, said first and second module each comprising a housing containing at least two parallel opposite faces, a microwave waveguide cavity within said housing opening on each of said two parallel opposite faces; and an active solid state device selectively placed within said cavity, such that its longitudinal axis is parallel to said two parallel faces, the solid state device in said first module being symmetrically placed equidistant from each of said two parallel faces, while the solid state device in said second module is asymmetrically placed relative to said two parallel faces; and means for aligning and joining said first and second second modules such that the cavities in each of said modules are aligned to form a microwave waveguide.
Claim 3
Dependent Claim
134 words
A microwave power source comprising: a plurality of tandemly-connected modules, each module comprising: a housing possessing at least a first set of two parallel faces, with a microwave cavity extending from one to the other face; and an active solid state device selectively mounted in said cavity with the longitudinal axis of said solid state device parallel to said two parallel faces; the solid state device in each of a selected number of said plurality of tandemly-connected modules being symmetrically mounted with respect to the first set of two parallel faces of each of said selected number of modules, while the Solid state device in each of the remainder of said plurality of tandemly-connected modules is asymmetrically mounted with respect to the first set of two parallel faces of each of said remaining modules.
Claim 4
Dependent Claim
134 words
A microwave power source comprising: a plurality of tandemly-connected modules, each module comprising: a housing possessing at least a first set of two parallel faces, with a microwave cavity extending from one to the other face; and an active solid state device selectively mounted in said cavity with the longitudinal axis of said solid state device parallel to said two parallel faces; the solid state device in each of a selected number of said plurality of tandemly-connected modules being symmetrically mounted with respect to the first set of two parallel faces of each of said selected number of modules, while the Solid state device in each of the remainder of said plurality of tandemly-connected modules is asymmetrically mounted with respect to the first set of two parallel faces of each of said remaining modules.
Claim 5
Dependent Claim
87 words
Structure as in claim 2 in which said housing possesses in addition to said first set of two parallel faces, a second set of two parallel faces and a third set of two parallel faces, said first, second, and third sets of parallel faces being mutually perpendicular, and said cavity contains two sets of mutually perpendicular pairs of walls, parallel to said second and said third sets of parallel faces respectively, said cavity having openings in each of the faces in said first set of parallel faces.
Claim 6
Dependent Claim
44 words
Structure as in claim 3 in which the longitudinal axis of said solid state device is parallel to both the first set of parallel faces, and the second set of parallel faces, said longitudinal axis being perpendicular to said third set of parallel faces.
Claim 7
Dependent Claim
14 words
Structure as in claim 2 in which said solid state device is a diode.
Claim 8
Dependent Claim
25 words
Structure as in claim 2 in which said solid state device is a device which directly converts DC power to RF power at microwave frequencies.
Claim 9
Dependent Claim
22 words
Structure as in claim 2 in which each module housing contains means for aligning and joining said module to similar microwave modules.
Claim 10
Dependent Claim
25 words
Structure as in claim 7 wherein said means for aligning comprise four holes in said housing perpendicular to said first set of two parallel faces.
Claim 11
Dependent Claim
14 words
Structure as in claim 2 wherein said microwave power source comprises a microwave oscillator.
Claim 12
Dependent Claim
14 words
Structure as in claim 2 wherein said microwave power source comprises a microwave amplifier.
Claim 13
Dependent Claim
120 words
A microwave power source comprising: a plurality of tandemly-connected modules, each module comprising: a housing possessing at least a first set of two parallel faces, with a microwave cavity extending from one to the other face; and an active solid state device selectively mounted in said cavity with the longitudinal axis of said solid state device parallel to said two parallel faces; the solid state device in each of said plurality of tandemly-connected modules being asymmetrically mounted with respect to the first set of two parallel faces so as to allow the spacings between the solid state devices in adjacent modules to be controlled by controlling the way in which said tandemly-connected modules are oriented with respect to each other.
Claim 14
Dependent Claim
120 words
A microwave power source comprising: a plurality of tandemly-connected modules, each module comprising: a housing possessing at least a first set of two parallel faces, with a microwave cavity extending from one to the other face; and an active solid state device selectively mounted in said cavity with the longitudinal axis of said solid state device parallel to said two parallel faces; the solid state device in each of said plurality of tandemly-connected modules being asymmetrically mounted with respect to the first set of two parallel faces so as to allow the spacings between the solid state devices in adjacent modules to be controlled by controlling the way in which said tandemly-connected modules are oriented with respect to each other.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |