US5105170A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide coupling networks
Assignee: BAE Systems PLC
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Filing: 1990-07-13
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Granted: 1992-04-14
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Expires: 2010-07-13
Abstract
Abstract A waveguide coupling network for the output or input network of a shared power amplification module comprises a plurality of waveguides interconnected by side or top wall coupling to make up a network in which the phase and amplitude coherence of the network is substantially preserved.
Inventors
- 👤 Jai S. Joshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:34
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/12; H01P5/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
203 words
A waveguide network for receiving a plurality of signals and distributing them between a plurality of channels, said network comprising: a substantially coplanar group of first, second, third and fourth waveguide means, each of said waveguide means being of generally L-shape and having an upstream region and a downstream region, further including means for coupling the upstream regions of the first and second waveguide means together, the upstream regions of the third and fourth waveguide means together, the downstream regions of the first and third waveguide means together, and the downstream regions of the second and fourth waveguide means together, wherein and further including a substantially coplanar group of fifth, sixth, seventh and eighth waveguide means each having a generally L-shape, an upstream region and a downstream region, further including means for coupling the upstream regions of the fifth and sixth waveguide means together, the upstream regions of the seventh and eighth waveguide means together, the downstream regions of the fifth and seventh waveguide means together, and the downstream regions of the sixth and eighth waveguide means together, with means for coupling said first, second, third and fourth waveguide means to an associated one of the fifth, sixth, seventh and eighth waveguide means.
Claim 2
Dependent Claim
203 words
A waveguide network for receiving a plurality of signals and distributing them between a plurality of channels, said network comprising: a substantially coplanar group of first, second, third and fourth waveguide means, each of said waveguide means being of generally L-shape and having an upstream region and a downstream region, further including means for coupling the upstream regions of the first and second waveguide means together, the upstream regions of the third and fourth waveguide means together, the downstream regions of the first and third waveguide means together, and the downstream regions of the second and fourth waveguide means together, wherein and further including a substantially coplanar group of fifth, sixth, seventh and eighth waveguide means each having a generally L-shape, an upstream region and a downstream region, further including means for coupling the upstream regions of the fifth and sixth waveguide means together, the upstream regions of the seventh and eighth waveguide means together, the downstream regions of the fifth and seventh waveguide means together, and the downstream regions of the sixth and eighth waveguide means together, with means for coupling said first, second, third and fourth waveguide means to an associated one of the fifth, sixth, seventh and eighth waveguide means.
Claim 3
Dependent Claim
62 words
A waveguide network according to claim 1, wherein said first, second, third and fourth waveguide means are stacked on associated ones of said fifth, sixth, seventh and eighth waveguide means, with the longitudinal axes of said first mentioned group of waveguide means lying in a common plane parallel to that containing the longitudinal axes of said second mentioned group of waveguide means.
Claim 4
Dependent Claim
155 words
A waveguide network comprising eight substantially L-shaped waveguide means each having an upstream region and a downstream region, arranged in two contiguous generally parallel groups of four, the waveguide means in each group being arranged such that each upstream region of a waveguide means is coupled to the upstream region of an adjacent one of the other waveguide means in the group and each downstream region is coupled to the downstream region of an adjacent one of the other waveguide means in the group, whereby each group defines a generally cruciform arrangement with two opposed pairs of signal receiving means and two opposed pairs of signal outlet means, the signal outlet means of each pair thereof in one group being coupled to respective ones of the signal outlet means in the corresponding pair in the other group, whereby the signal supplied to any signal receiving means is distributed between each of the eight waveguide means.
Claim 5
Dependent Claim
155 words
A waveguide network comprising eight substantially L-shaped waveguide means each having an upstream region and a downstream region, arranged in two contiguous generally parallel groups of four, the waveguide means in each group being arranged such that each upstream region of a waveguide means is coupled to the upstream region of an adjacent one of the other waveguide means in the group and each downstream region is coupled to the downstream region of an adjacent one of the other waveguide means in the group, whereby each group defines a generally cruciform arrangement with two opposed pairs of signal receiving means and two opposed pairs of signal outlet means, the signal outlet means of each pair thereof in one group being coupled to respective ones of the signal outlet means in the corresponding pair in the other group, whereby the signal supplied to any signal receiving means is distributed between each of the eight waveguide means.
Claim 6
Dependent Claim
128 words
A shared power amplifier having an input network, amplifier means and an output network arranged such that the input terminals of the input network have a one-to-one correspondence with the output terminals of the output network, and wherein said output network comprises substantially coplanar first, second, third and fourth waveguide means, each of said waveguide means being of generally L-shape and having an upstream region for receiving a respective signal from said amplifier means and a downstream region, further including means for coupling the upstream regions of said first and second waveguide means together, the upstream regions of said third and fourth waveguide means together, the downstream regions of said first and third waveguide means together, and the downstream regions of said second and fourth waveguide means together.
Claim 7
Dependent Claim
128 words
A shared power amplifier having an input network, amplifier means and an output network arranged such that the input terminals of the input network have a one-to-one correspondence with the output terminals of the output network, and wherein said output network comprises substantially coplanar first, second, third and fourth waveguide means, each of said waveguide means being of generally L-shape and having an upstream region for receiving a respective signal from said amplifier means and a downstream region, further including means for coupling the upstream regions of said first and second waveguide means together, the upstream regions of said third and fourth waveguide means together, the downstream regions of said first and third waveguide means together, and the downstream regions of said second and fourth waveguide means together.
Claim 8
Dependent Claim
42 words
A shared power amplifier according to claim 4, wherein the phase and amplitude coherence of the paths between any one of the input terminals of the input network and any one of the output terminals of the output network are substantially maintained.
Claim 9
Dependent Claim
121 words
A shared power amplifier having an input network, amplifier means and an output network arranged such that the input terminals of the input network have a one-to-one correspondence with the output terminals of the output network, and wherein said output network comprises, first, second, third and fourth waveguide means, each of said waveguide means having an upstream region for receiving a respective signal from said amplifier means and a downstream region, further including means for coupling the upstream regions of said first and second waveguide means together, the upstream regions of said third and fourth waveguide means together, the downstream regions of said first and third waveguide means together, and the downstream regions of said second and fourth waveguide means together.
Claim 10
Dependent Claim
121 words
A shared power amplifier having an input network, amplifier means and an output network arranged such that the input terminals of the input network have a one-to-one correspondence with the output terminals of the output network, and wherein said output network comprises, first, second, third and fourth waveguide means, each of said waveguide means having an upstream region for receiving a respective signal from said amplifier means and a downstream region, further including means for coupling the upstream regions of said first and second waveguide means together, the upstream regions of said third and fourth waveguide means together, the downstream regions of said first and third waveguide means together, and the downstream regions of said second and fourth waveguide means together.
References Cited (Backward Citations)
US2568090A
Cited
US2585173A
Cited
GB818450A
Cited
GB820632A
Cited
US2909655A
Cited
GB871383A
Cited
GB929289A
Cited
GB890846A
Cited
GB926343A
Cited
GB1005378A
Cited
GB1180714A
Cited
EP0041877A1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-04-14 | 1995-10-14 | 1996-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-04-14 | 1999-10-14 | 2000-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-04-14 | 2003-10-14 | 2004-04-14 | $7700.00 | Window Closed / Lapsed |