US3600682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Microwave power amplifier networks including switching arrangements therefor
Assignee: NEC Corp
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Filing: 1969-05-13
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Granted: 1971-08-17
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Expires: 1989-05-13
Abstract
Abstract Multiplex signals are interconnected to two high-power amplifiers with microwave switches and hybrids in an arrangement so that each amplifier can selectively handle the signals of the other amplifier in case of failure of one of the amplifiers.
Inventors
- 👤 Kouichi Yoshimoto
- 👤 Susumu Kitazume
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:57
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/02; H04B1/04; H03; H03F; H03F1/00; H03F1/52; H03F1/54; H03F1/542
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
343 words
A microwave power amplifier network comprising: first and second microwave power amplifier means exhibiting a sufficient bandwidth to accommodate first and second multiplexed signals; input circuit means including first and second switch means adapted to separately apply said first multiplexed signals to one of said microwave power amplifier means and said second multiplexed signals to another of said microwave power amplifier means, said first and second switch means each including first and second input means, at least one output means, and means for selectively connecting said first and second input means to said at least one output means, said first input means of said first switch means being adapted to receive said first multiplexed signals, said first input means of said second switch means being adapted to receive said second multiplexed signals and said at least one output means of each of said first and second switch means being connected to individual ones of said first and second microwave power amplifier means by connector means adapted therefore; means for applying each of said first and second multiplexed signals to one of said first and second microwave power amplifier means in response to the detection of a failure in the other one of said microwave power amplifier means, said means for applying each of said first and second multiplexed signals to one of said first and second microwave power amplifier means including means for combining said first and second multiplexed signals and means for connecting said second input means of each of said first and second switch means to said means for combining said first and second multiplexed signals; and means for selectively applying output signals from said first and second microwave power amplifier means to transmitting antenna means, said means for selectively applying output signals including means for selectively applying output signals from only one of said first and second microwave power amplifier means to said transmitting antenna means and means for selectively applying combined output signals from each of said first and second microwave power amplifier means to said transmitting antenna means.
Claim 2
Dependent Claim
343 words
A microwave power amplifier network comprising: first and second microwave power amplifier means exhibiting a sufficient bandwidth to accommodate first and second multiplexed signals; input circuit means including first and second switch means adapted to separately apply said first multiplexed signals to one of said microwave power amplifier means and said second multiplexed signals to another of said microwave power amplifier means, said first and second switch means each including first and second input means, at least one output means, and means for selectively connecting said first and second input means to said at least one output means, said first input means of said first switch means being adapted to receive said first multiplexed signals, said first input means of said second switch means being adapted to receive said second multiplexed signals and said at least one output means of each of said first and second switch means being connected to individual ones of said first and second microwave power amplifier means by connector means adapted therefore; means for applying each of said first and second multiplexed signals to one of said first and second microwave power amplifier means in response to the detection of a failure in the other one of said microwave power amplifier means, said means for applying each of said first and second multiplexed signals to one of said first and second microwave power amplifier means including means for combining said first and second multiplexed signals and means for connecting said second input means of each of said first and second switch means to said means for combining said first and second multiplexed signals; and means for selectively applying output signals from said first and second microwave power amplifier means to transmitting antenna means, said means for selectively applying output signals including means for selectively applying output signals from only one of said first and second microwave power amplifier means to said transmitting antenna means and means for selectively applying combined output signals from each of said first and second microwave power amplifier means to said transmitting antenna means.
Claim 3
Dependent Claim
66 words
The microwave power amplifier network according to claim 1 wherein said means for selectively applying combined output signals from each of said first and second microwave power amplifier means to said transmitting antenna means includes hybrid circuit means operative to combine output signals from said first and second microwave power amplifier means as applied thereto and to apply said output signals to said transmitting antenna means.
Claim 4
Dependent Claim
64 words
The microwave power amplifier network according to claim 2 wherein said hybrid circuit means comprises magic tee means including first and second input arms and first and second output arms, said first and second input arms being coupled to said first and second microwave power amplifier means respectively, and one of said first and second output arms being coupled to said transmitting antenna means.
Claim 5
Dependent Claim
117 words
The microwave power amplifier network according to claim 3 wherein shutter means are provided in each of said first and second input arms of said magic tee means and in the output arm thereof which is not coupled to said transmitting antenna, said shutter means being adapted to be selectively pLaced in opened and shorted conditions whereupon said magic tee means may be selectively placed in a first condition wherein combined output signals from each of said first and second microwave power amplifier means are applied to said transmitting antenna means and a second condition wherein output signals from only one of said first and second microwave power amplifier means is applied to said transmitting antenna means.
Claim 6
Dependent Claim
115 words
The microwave power amplifier network according to claim 2 additionally comprising sixth and seventh switch means, said sixth and seventh switch means each including at least one input means, first and second output means and means for selectively connecting said first and second output means to said at least one input means; said at least one input means of said sixth switch means being connected to said first microwave power amplifier means, said at least one input means of said seventh switch means being connected to said second microwave power amplifier means; and said first output means of each of said sixth and seventh switch means being connected as inputs to said hybrid circuit means.
Claim 7
Dependent Claim
82 words
The microwave power amplifier network according to claim 5 additionally comprising eighth switch means including first and second input means, at least one output means, and means for selectively connecting said at least one output means to said first and second input means; said at least one output means of said eighth switch means being connected to said transmitting antenna means and said first input means of said eighth switch means being connected to said hybrid circuit means at an output thereof.
Claim 8
Dependent Claim
66 words
The microwave power amplifier network according to claim 6 wherein said sixth switch means includes an additional input means and additionally comprising means for connecting said second output means of said seventh switch means to said additional input means of said sixth switch means and means for connecting said second output of said sixth switch means to said second input means of said eighth switch means.
Claim 9
Dependent Claim
94 words
The microwave power amplifier network according to claim 6 additionally comprising: ninth switch means including first and second input means, at least one output means and means for selectively connecting said first and second input means to said at least one output means; means for connecting said second output means of said sixth and seventh switch means to the first and second input means, respectively, of said ninth switch means; and means for connecting said at least one output means of said ninth switch means to said second input of said eighth switch means.
Claim 10
Dependent Claim
56 words
The microwave power amplifier network according to claim 2 wherein said input circuit means includes third and fourth switch means, said third and fourth switch means each including at least one input means, first and second output means and means for selectively connecting said at least one input means to said first and second output means.
Claim 11
Dependent Claim
119 words
The microwave power amplifier network according to claim 9 wherein said at least one input means of said third switch means is adapted to receive said first multiplexed signals, said at least one input means of said fourth switch means is adapted to receive said second multiplexed signals, said first output means of said third switch means is connected to said first input means of said first switch means, said first output means of said fourth switch means is connected to said first input means of said second switch means and said second output means of each of said third and fourth switch means is connected as inputs to said means for combining said first and second multiplexed signals.
Claim 12
Dependent Claim
118 words
The microwave power amplifier network according to claim 2 wherein said connector means includes fifth switch means for selectively connecting said at least one output means of said first switch means to said first microwave power amplifier means and said at least one output means of said second switch means to said second microwavE power amplifier means when said fifth switch means is in a first state and for selectively connecting said at least one output means of said first switch means to said second microwave power amplifier means and said at least one output means of said second switch means to said first microwave power amplifier means when said fifth switch means is in a second state.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |