US3775694A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amplifier for microwaves comprising radial waveguide-hybrid coupler
Assignee: General Electric Co
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Filing: 1973-02-02
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Granted: 1973-11-27
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Expires: 1993-02-02
Abstract
Abstract A radial waveguide-3dB hybrid coupler in a circular configuration comprises two coaxial radial wave-guides, one with an input port and one with an output port, having a branch-guide hybrid coupler formed in the common broad wall. Dual arrays of one-port, reflective type, power amplifying modules are mounted at the periphery of the waveguide structure. Input power is coupled to both module arrays and reflected to the output port to provide gain-enhanced output power over broad bandwidths.
Inventors
- 👤 J Quine
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:06
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/54; H03F3/55; H03F2200/00; H03F2200/198
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
102 words
A microwave power combiner comprising a first radial waveguide having an input port and a second radial waveguide having an output port, a plurality of power amplifying modules mounted about the periphery of each of said radial waveguides, each module receiving incident waves and producing gain-enhanced reflected waves, and hybrid coupling means connecting said first and second radial waveguides and operative to couple input power applied to said input port to said power amplifying modules in both waveguides, and to couple the gain-enhanced reflected waves produced by said power amplifying modules in both waveguides to said output port to provide output power.
Claim 2
Dependent Claim
102 words
A microwave power combiner comprising a first radial waveguide having an input port and a second radial waveguide having an output port, a plurality of power amplifying modules mounted about the periphery of each of said radial waveguides, each module receiving incident waves and producing gain-enhanced reflected waves, and hybrid coupling means connecting said first and second radial waveguides and operative to couple input power applied to said input port to said power amplifying modules in both waveguides, and to couple the gain-enhanced reflected waves produced by said power amplifying modules in both waveguides to said output port to provide output power.
Claim 3
Dependent Claim
18 words
A construction according to claim 1 wherein said hybrid coupling means is comprised by a branch-guide hybrid coupler.
Claim 4
Dependent Claim
23 words
A construction according to claim 1 wherein said first and second radial waveguides are coaxially mounted circular waveguides with a common conductive wall.
Claim 5
Dependent Claim
18 words
A construction according to claim 3 wherein said hybrid coupling means is comprised by a branch-guide hybrid coupler.
Claim 6
Dependent Claim
34 words
A construction according to claim 3 wherein said hybrid coupling means is a branch-guide hybrid coupler comprised by a plurality of concentric annular conducting rings supported approximately in the plane of said common wall.
Claim 7
Dependent Claim
42 words
A construction according to claim 2 wherein said first and second radial waveguides each has an outer conductive wall with a plurality of radial higher order mode absorption slots, and microwave absorption material secured to the outer surfaces of said outer walls.
Claim 8
Dependent Claim
128 words
A microwave power combiner comprising a pair of coaxially mounted circular radial waveguides having a common conductive wall, one of said radial waveguides having a central input port and the other a central output port, an array of one-port power amplifying modules mounted about the entire periphery of each of said radial waveguides, each module receiving incident waves and producing gain-enhanced reflected waves, and a hybrid coupler comprising a plurality of spaced annular conducting rings supported approximately in the plane of said common wall that are operative to couple input power applied to said input port to said power amplifying modules in both waveguides, and to couple the gain-enhanced reflected waves produced by said power amplifying modules in both waveguides to said output port to provide output power.
Claim 9
Dependent Claim
128 words
A microwave power combiner comprising a pair of coaxially mounted circular radial waveguides having a common conductive wall, one of said radial waveguides having a central input port and the other a central output port, an array of one-port power amplifying modules mounted about the entire periphery of each of said radial waveguides, each module receiving incident waves and producing gain-enhanced reflected waves, and a hybrid coupler comprising a plurality of spaced annular conducting rings supported approximately in the plane of said common wall that are operative to couple input power applied to said input port to said power amplifying modules in both waveguides, and to couple the gain-enhanced reflected waves produced by said power amplifying modules in both waveguides to said output port to provide output power.
Claim 10
Dependent Claim
40 words
A construction according to claim 7 wherein said circular radial waveguides each have a conductive outer wall with a plurality of radial higher order mode absorption slots, and microwave absorption material secured to the outer surfaces of said outer walls.
Claim 11
Dependent Claim
20 words
A construction according to claim 8 further including coaxial transmission line to waveguide transitions at said input and output ports.
References Cited (Backward Citations)
US3582813A
Cited
US3733560A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-11-26 | 1977-05-28 | 1977-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-26 | 1981-05-28 | 1981-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-26 | 1985-05-28 | 1985-11-27 | $7700.00 | Window Closed / Lapsed |