Patent US3710390A successfully refreshed from Google Patents.
US3710390A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Monopulse switching system
Assignee: Raytheon Co
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Filing: 1957-05-01
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Granted: 1973-01-09
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Expires: 1977-05-01
Abstract
Abstract 6. An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and a plurality of intercoupled hybrid junctions having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said plurality of hybrid junctions being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; a receiver responsive to a microwave error signal and a reference signal and adapted to develop demodulated error voltages representative of the azimuth and elevation of said target; and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and coupling and said simultaneous lobing antenna to said receiver, said switching circuit being adapted to develop said microwave error signal and including a microwave two-channel switch, a microwave phase inverter, adder means, and an electronic reference generator for developing said reference signal and first and second control signals, said switch being coupled to said phase inverter and to said generator and responsive to said first control signal for sequentially applying either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being coupled to said generator and being responsive to said second control signal for sequentially introducing a 180* phase shift to the sequentially applied azimuth or elevation signal, and adder means coupling said phase inverter to said sum terminal and being adapted to mix the sequentially phase-inverted signal from said phase inverter and said sum signal to develop said microwave error signal.
Inventors
- 👤 D Kreinheder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:28
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/66; G01S13/68
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
184 words
In an electronic lobe switching system for locating a target in space and including a monopulse antenna having three output terminals Which provide respectively a sum signal, an azimuth signal and an elevation signal, a receiver responsive to a microwave error signal and a reference signal and adapted to develop corresponding demodulated error voltages therefrom, and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and adapted to develop therefrom said microwave error signal, said switching circuit coupling said monopulse antenna to said receiver and comprising: a phase inverter; a microwave two-channel switch coupled to said phase inverter and responsive to a first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal to selectively impart a 180* phase shift to the selectively applied azimuth or elevation signal; and adder means coupled to said phase inverter and responsive to said sum signal and the selectively phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 2
Dependent Claim
184 words
In an electronic lobe switching system for locating a target in space and including a monopulse antenna having three output terminals Which provide respectively a sum signal, an azimuth signal and an elevation signal, a receiver responsive to a microwave error signal and a reference signal and adapted to develop corresponding demodulated error voltages therefrom, and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and adapted to develop therefrom said microwave error signal, said switching circuit coupling said monopulse antenna to said receiver and comprising: a phase inverter; a microwave two-channel switch coupled to said phase inverter and responsive to a first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal to selectively impart a 180* phase shift to the selectively applied azimuth or elevation signal; and adder means coupled to said phase inverter and responsive to said sum signal and the selectively phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 3
Dependent Claim
184 words
In an electronic lobe switching system for locating a target in space and including a monopulse antenna having three output terminals Which provide respectively a sum signal, an azimuth signal and an elevation signal, a receiver responsive to a microwave error signal and a reference signal and adapted to develop corresponding demodulated error voltages therefrom, and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and adapted to develop therefrom said microwave error signal, said switching circuit coupling said monopulse antenna to said receiver and comprising: a phase inverter; a microwave two-channel switch coupled to said phase inverter and responsive to a first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal to selectively impart a 180* phase shift to the selectively applied azimuth or elevation signal; and adder means coupled to said phase inverter and responsive to said sum signal and the selectively phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 4
Dependent Claim
184 words
In an electronic lobe switching system for locating a target in space and including a monopulse antenna having three output terminals Which provide respectively a sum signal, an azimuth signal and an elevation signal, a receiver responsive to a microwave error signal and a reference signal and adapted to develop corresponding demodulated error voltages therefrom, and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and adapted to develop therefrom said microwave error signal, said switching circuit coupling said monopulse antenna to said receiver and comprising: a phase inverter; a microwave two-channel switch coupled to said phase inverter and responsive to a first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal to selectively impart a 180* phase shift to the selectively applied azimuth or elevation signal; and adder means coupled to said phase inverter and responsive to said sum signal and the selectively phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 5
Dependent Claim
214 words
In an electronic lobe switching system for locating a target in space and including a monopulse antenna having three output terminals which provide respectively a sum signal, an azimuth signal and an elevation signal, a receiver responsive to a microwave error signal and a reference signal and adapted to develop corresponding demodulated error voltages therefrom, and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and adapted to develop therefrom said microwave error signal, said switching circuit coupling said monopulse antenna to said receiver and comprising: a phase inverter; an electronic reference generator adapted to develop said reference signal, a first control signal and a second control signal; a microwave two-channel switch coupled to said phase inverter and to said generator and responsive to said first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being coupled to said generator and being responsive to said second control signal to sequentially impart a 180 degree phase shift to the selectively applied azimuth or elevation signal; and adder means coupled to said phase inverter and responsive to said sum signal and the sequentially phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 6
Dependent Claim
214 words
In an electronic lobe switching system for locating a target in space and including a monopulse antenna having three output terminals which provide respectively a sum signal, an azimuth signal and an elevation signal, a receiver responsive to a microwave error signal and a reference signal and adapted to develop corresponding demodulated error voltages therefrom, and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and adapted to develop therefrom said microwave error signal, said switching circuit coupling said monopulse antenna to said receiver and comprising: a phase inverter; an electronic reference generator adapted to develop said reference signal, a first control signal and a second control signal; a microwave two-channel switch coupled to said phase inverter and to said generator and responsive to said first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being coupled to said generator and being responsive to said second control signal to sequentially impart a 180 degree phase shift to the selectively applied azimuth or elevation signal; and adder means coupled to said phase inverter and responsive to said sum signal and the sequentially phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 7
Dependent Claim
256 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and hybrid junction means having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said hybrid junction means being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; a receiver responsive to a microwave error signal and a reference signal and adapted to develop demodulated error voltages representative of the azimuth and elevation of said target; and a switching circuit coupling said simultaneous lobing antenna to said receiver, said switching circuit including a phase inverter; a microwave two-channel switch coupled to said phase inverter and responsive to a first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal to selectively impart a 180* phase shift to the selectively applied azimuth or elevation signal, and adder means coupled to said phase inverter and responsive to saId sum signal and the selectively phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 8
Dependent Claim
256 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and hybrid junction means having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said hybrid junction means being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; a receiver responsive to a microwave error signal and a reference signal and adapted to develop demodulated error voltages representative of the azimuth and elevation of said target; and a switching circuit coupling said simultaneous lobing antenna to said receiver, said switching circuit including a phase inverter; a microwave two-channel switch coupled to said phase inverter and responsive to a first control signal to selectively apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal to selectively impart a 180* phase shift to the selectively applied azimuth or elevation signal, and adder means coupled to said phase inverter and responsive to saId sum signal and the selectively phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 9
Dependent Claim
286 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and hybrid junction means having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said hybrid junction means being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; a receiver responsive to a microwave error signal and a reference signal and adapted to develop demodulated error voltages representative of the azimuth and elevation of said target; and a switching circuit coupling said simultaneous lobing antenna to said receiver, said switching circuit including a phase inverter, an electronic reference generator adapted to develop said reference signal, a first control signal and a second control signal, a microwave two-channel switch coupled to said phase inverter and to said generator and responsive to said first control signal to sequentially apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being coupled to said generator and being responsive to said second control signal to sequentially impart a 180 degree phase shift to the sequentially applied azimuth or elevation signal, and adder means coupled to said phase inverter and responsive to said sum signal and the sequentially phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 10
Dependent Claim
286 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and hybrid junction means having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said hybrid junction means being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; a receiver responsive to a microwave error signal and a reference signal and adapted to develop demodulated error voltages representative of the azimuth and elevation of said target; and a switching circuit coupling said simultaneous lobing antenna to said receiver, said switching circuit including a phase inverter, an electronic reference generator adapted to develop said reference signal, a first control signal and a second control signal, a microwave two-channel switch coupled to said phase inverter and to said generator and responsive to said first control signal to sequentially apply either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being coupled to said generator and being responsive to said second control signal to sequentially impart a 180 degree phase shift to the sequentially applied azimuth or elevation signal, and adder means coupled to said phase inverter and responsive to said sum signal and the sequentially phase-inverted signal derived from said phase inverter and adapted to develop said microwave error signal therefrom.
Claim 11
Dependent Claim
290 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and a plurality of intercoupled hybrid junctions having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said plurality of hybrid junctions being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; a receiver responsive to a microwave error signal and a reference signal and adapted to develop demodulated error voltages representative of the azimuth and elevation of said target; and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and coupling said simultaneous lobing antenna to said receiver, said switching circuit being adapted to develop said microwave error signal and including a microwave two-channel switch, a microwave phase inverter, and adder means, said switch being coupled to said phase inverter and responsive to a first control signal for sequentially applying either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal for sequentially introducing a 180* phase shift to the sequentially applied azimuth or elevation signal, and adder means coupling said phase inverter to said sum terminal and being adapted to mix the sequentially phase-inverted signal from said phase inverter and said sum signal to develop said microwave error signal.
Claim 12
Dependent Claim
290 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and a plurality of intercoupled hybrid junctions having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said plurality of hybrid junctions being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; a receiver responsive to a microwave error signal and a reference signal and adapted to develop demodulated error voltages representative of the azimuth and elevation of said target; and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal and coupling said simultaneous lobing antenna to said receiver, said switching circuit being adapted to develop said microwave error signal and including a microwave two-channel switch, a microwave phase inverter, and adder means, said switch being coupled to said phase inverter and responsive to a first control signal for sequentially applying either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal for sequentially introducing a 180* phase shift to the sequentially applied azimuth or elevation signal, and adder means coupling said phase inverter to said sum terminal and being adapted to mix the sequentially phase-inverted signal from said phase inverter and said sum signal to develop said microwave error signal.
Claim 13
Dependent Claim
259 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and a plurality of intercoupled hybrid junctions having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said plurality of hybrid junctions being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal coupled to said simultaneous lobing antenna, said switching circuit being adapted to develop a microwave error signal and including a microwave two-channel switch, a microwave phase inverter and adder means, said switch being coupled to said phase inverter and responsive to a first control signal for sequentially applying either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal for sequentially introducing a 180* phase shift to the sequentially applied azimuth or elevation signal, and adder means coupling said phase inverter to said sum terminal and being adapted to mix the sequentially phase-inverted signal from said phase inverter and said sum signal to develop said microwave error signal.
Claim 14
Dependent Claim
259 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and a plurality of intercoupled hybrid junctions having four input terminals, a sum output terminal, an azimuth output terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said plurality of hybrid junctions being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal coupled to said simultaneous lobing antenna, said switching circuit being adapted to develop a microwave error signal and including a microwave two-channel switch, a microwave phase inverter and adder means, said switch being coupled to said phase inverter and responsive to a first control signal for sequentially applying either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being responsive to a second control signal for sequentially introducing a 180* phase shift to the sequentially applied azimuth or elevation signal, and adder means coupling said phase inverter to said sum terminal and being adapted to mix the sequentially phase-inverted signal from said phase inverter and said sum signal to develop said microwave error signal.
Claim 15
Dependent Claim
284 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and a plurality of intercoupled hybrid junctions having four input terminals, a sum output terminal, an azimuth outpuT terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said plurality of hybrid junctions being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal coupled to said simultaneous lobing antenna, said switching circuit being adapted to develop a microwave error signal and including a microwave two-channel switch, a microwave phase inverter, adder means, and an electronic reference generator for developing a reference signal and first and second control signals, said switch being coupled to said phase inverter and to said generator and responsive to said first control signal for sequentially applying either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being coupled to said generator and being responsive to said second control signal for sequentially introducing a 180 degree phase shift to the sequentially applied azimuth or elevation signal, and adder means coupling said phase inverter to said sum terminal and adapted to mix the sequentially phase-inverted signal from said phase inverter and said sum signal to develop said microwave error signal.
Claim 16
Dependent Claim
284 words
An electronic lobe switching system for locating a target in space comprising: a simultaneous lobing antenna including four symmetrically positioned radiators defining the corners of a square, and a plurality of intercoupled hybrid junctions having four input terminals, a sum output terminal, an azimuth outpuT terminal and an elevation output terminal, each of said radiators being coupled to one of said input terminals and adapted to excite a microwave signal therein representative of a microwave signal received from said target, said plurality of hybrid junctions being adapted to develop a sum signal in said sum terminal, an azimuth signal in said azimuth terminal and an elevation signal in said elevation terminal representative of the range, the azimuth and the elevation of said target respectively; and a switching circuit responsive to said sum signal, said azimuth signal and said elevation signal coupled to said simultaneous lobing antenna, said switching circuit being adapted to develop a microwave error signal and including a microwave two-channel switch, a microwave phase inverter, adder means, and an electronic reference generator for developing a reference signal and first and second control signals, said switch being coupled to said phase inverter and to said generator and responsive to said first control signal for sequentially applying either said azimuth signal or said elevation signal to said phase inverter, said phase inverter being coupled to said generator and being responsive to said second control signal for sequentially introducing a 180 degree phase shift to the sequentially applied azimuth or elevation signal, and adder means coupling said phase inverter to said sum terminal and adapted to mix the sequentially phase-inverted signal from said phase inverter and said sum signal to develop said microwave error signal.
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) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |