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Patent US3697995A successfully refreshed from Google Patents.
US3697995A
Expired / Lapsed
US
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Increased power electronically scanning integrated antenna system
Assignee: Teledyne Ryan Aeronautical Corp
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Filing: 1967-11-20
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Granted: 1972-10-10
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Expires: 1987-11-20
Abstract
Abstract This invention concerns an electronically scanning integrated antenna system that has free running oscillators for providing large power output to each antenna and utilizes frequency multipliers, preferably step recovery diode multipliers, for controlling the frequency and phase of the free running oscillators outputs independently of the means for providing modulated intelligence to the radiated beam.
Inventors
- 👤 Peter H Kafitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:33
CPC Classifications
H; H01; H01Q; H01Q3/00; H01Q3/26; H01Q3/30
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
117 words
A transmitting antenna element comprising, a frequency multiplier for providing an RF signal, a free running oscillator means responsive to said RF signal for providing RF power to an antenna, which RF power has the frequency and phase of said RF signal, biasing means for selectively varying the phase of said RF signal, oscillator means for providing an alternating positive and negative signal, said frequency multiplier comprising a step recovery diode means being responsive to said alternating signal, said biasing means selectively varies the time of the snap point of said step recovery diode means during the negative half cycle of said alternating signal, and modulator means for providing a modulating signal to said free running oscillator.
Claim 2
Dependent Claim
117 words
A transmitting antenna element comprising, a frequency multiplier for providing an RF signal, a free running oscillator means responsive to said RF signal for providing RF power to an antenna, which RF power has the frequency and phase of said RF signal, biasing means for selectively varying the phase of said RF signal, oscillator means for providing an alternating positive and negative signal, said frequency multiplier comprising a step recovery diode means being responsive to said alternating signal, said biasing means selectively varies the time of the snap point of said step recovery diode means during the negative half cycle of said alternating signal, and modulator means for providing a modulating signal to said free running oscillator.
Claim 3
Dependent Claim
97 words
An electronically scanned transmitting antenna array comprising, a plurality of antennas, a frequency multiplier for each of said antennas for providing an RF signal having a given frequency and phase, a free running oscillator for each of said antennas and responsive to said RF signal for providing RF power to a respective antenna, which RF power has the frequency and phase of said RF signal, biasing means for selectively varying the phase of the RF output signals from each of said frequency multipliers, and a master modulator for providing a modulated signal to said free running oscillators.
Claim 4
Dependent Claim
97 words
An electronically scanned transmitting antenna array comprising, a plurality of antennas, a frequency multiplier for each of said antennas for providing an RF signal having a given frequency and phase, a free running oscillator for each of said antennas and responsive to said RF signal for providing RF power to a respective antenna, which RF power has the frequency and phase of said RF signal, biasing means for selectively varying the phase of the RF output signals from each of said frequency multipliers, and a master modulator for providing a modulated signal to said free running oscillators.
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) | 1975-10-10 | 1976-04-10 | 1976-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-10 | 1980-04-10 | 1980-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-10 | 1984-04-10 | 1984-10-10 | $7700.00 | Window Closed / Lapsed |