Patent US4933651A successfully refreshed from Google Patents.
US4933651A
Expired / Lapsed
US
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Multichannel combiner/divider
Assignee: Thales SA
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Filing: 1989-03-14
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Granted: 1990-06-12
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Expires: 2009-03-14
Abstract
Abstract Disclosed is a device to combine or divide the power values of electromagnetic signals and, more particularly, a device of the radial mode. In a combiner/divider which comprises two metallic disks defining an annular space of propagation, each channel is separated from the adjacent channel by a radial slot which is placed in the lower disk and extends from the central aperture to the peripheral ring. Furthermore, each channel thus defined has a radial ridge. The invention can be applied to transmitters, notably those used in radars.
Inventors
- 👤 Guy Benahim
- 👤 Jean-Michel Dutaut
- 👤 Jean-Claude Giraudon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:24
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
188 words
A multichannel combiner/divider for microwave signals at a wavelength b, comprising: a pair of substantially circular metallic disks, superimposed in space one over the other, so as to define a closed cavity having a central circular aperture receiving an input coaxial line and having a plurality of N radial channels each communicating at one end with said central aperture and having an opposite end; a peripheral ring fixed to the upper and lower disks, said ring carrying a plurality of N couplers with each coupler having a corresponding coaxial line to which said opposite ends of said radial channels are in communication; N corresponding internal couplers with one corresponding to each external coaxial line, said internal couplers being placed at regular intervals on said ring; wherein each of said channels is provided with a radial radiation concentrating ridge essentially centered inside the channel and extending from about the central aperture towards the corresponding coupler and wherein each channel is provided with a pair of radial slots arranged on either side of the coupler of said channel, each of said pair of lateral slots being placed between adjacent channels.
Claim 2
Dependent Claim
188 words
A multichannel combiner/divider for microwave signals at a wavelength b, comprising: a pair of substantially circular metallic disks, superimposed in space one over the other, so as to define a closed cavity having a central circular aperture receiving an input coaxial line and having a plurality of N radial channels each communicating at one end with said central aperture and having an opposite end; a peripheral ring fixed to the upper and lower disks, said ring carrying a plurality of N couplers with each coupler having a corresponding coaxial line to which said opposite ends of said radial channels are in communication; N corresponding internal couplers with one corresponding to each external coaxial line, said internal couplers being placed at regular intervals on said ring; wherein each of said channels is provided with a radial radiation concentrating ridge essentially centered inside the channel and extending from about the central aperture towards the corresponding coupler and wherein each channel is provided with a pair of radial slots arranged on either side of the coupler of said channel, each of said pair of lateral slots being placed between adjacent channels.
Claim 3
Dependent Claim
24 words
A combiner/divider according to claim 1, wherein each radial slot has a length close to b/4 or to a whole number multiple of b/4,
Claim 4
Dependent Claim
38 words
A combiner/divider according to claim 2, wherein the slots have a length close to a whole number multiple of b/4, the edges of each radial slot being connected by resistors placed at distances of b/4 from one another.
Claim 5
Dependent Claim
17 words
A combiner/divider according to claim 1, wherein the radial ridge is fixed to at least one disk.
Claim 6
Dependent Claim
23 words
A combiner/divider according to claim 1, wherein the height of the radial ridge is smaller than the distance e between the circular disks.
Claim 7
Dependent Claim
15 words
A combiner/divider according to claim 1, wherein the height of the radial ridge is variable.
Claim 8
Dependent Claim
42 words
A combiner/divider according to claim 1, wherein the coupler is formed by an L-shaped blade, one branch of which is fixed to one of the two disks while the other branch is electrically connected to the central conductor of the coaxial line.
Claim 9
Dependent Claim
24 words
A combiner/divider according to claim 7, wherein the blade has a central ridge in the extension of the radial ridge of the transmission channel.
Claim 10
Dependent Claim
28 words
A combiner/divider according to claim 8, wherein the radial ridge of the blade of the coupler has an inclined edge, the height of which decreases towards the periphery.
Claim 11
Dependent Claim
44 words
A combiner/divider according to claim 1, wherein the radial slots on one of the two disks do not extend to the central aperture and wherein the other disk has radial slots placed in the vertical planes of the radial slots of the first disk.
Claim 12
Dependent Claim
23 words
A combiner/divider according to claim 10, wherein the radial slots of the other disk partly cover the radial slots of the first disk.
Claim 13
Dependent Claim
18 words
A combiner/divider according to claim 1, comprising means to absorb the microwave energy radiated by the radial slots.
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) | 1993-06-11 | 1993-12-11 | 1994-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-06-11 | 1997-12-11 | 1998-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-06-11 | 2001-12-11 | 2002-06-12 | $7700.00 | Window Closed / Lapsed |