US3104359A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Travelling-wave tube oscillator
Assignee: NEC Corp
•
Filing: 1961-06-26
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Granted: 1963-09-17
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 Tachizawa Hiroshi
- 👤 Sato Akira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 18:51
CPC Classifications
H; H03; H03B; H03B9/00; H03B9/01; H03B9/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A TRAVELING-WAVE TUBE OSCILLATOR COMPRISING A TRAVELING-WAVE TUBE AMPLIFIER COMPOSED OF A TRAVELING-WAVE TUBE EQUIPPED WITH AN INPUT AND AN OUTPUT WAVEGUIDES, A DIRECTIONAL COUPLER HAVING FIRST, SECOND, AND THIRD ARMS, SAID FIRST ARM BEING CONNECTED TO SAID OUTPUT WAVEGUIDE, SAID SECOND ARM IN WHICH AN ELECTROMAGNETIC WAVE FROM SAID FIRST ARM PASSES BEING CONNECTED TO SAID INPUT WAVEGUIDE, SAID THIRD ARM THROUGH WHICH AN ELECTROMAGNETIC WAVE FROM SAID FIRST ARM PASSES BEING CAPABLE OF SENDING SAID ELECTROMAGNETIC WAVE TO SAID SECOND ARM, A DIODE INSTALLED IN SAID THIRD ARM SO AS TO SERVE AS AN IMPEDANCE AGAINST AN ELECTROMAGNETIC WAVE PROPAGATED THERETHROUGH, MEANS FOR DETECTING A PORTION OF THE OUTPUT OF SAID TRAVELING WAVE TUBE AMPLIFIER, MEANS RESPONSIVE TO SAID DETECTED OUTPUT FOR CONTROLLING THE IMPEDANCE OF SAID DIODE SO AS TO MAKE SAID IMPEDANCE APPROXIMATE THE CHARACTERISTIC IMPEDANCE OF SAID THIRD ARM.
Claim 2
Dependent Claim
144 words
A TRAVELING-WAVE TUBE OSCILLATOR COMPRISING A TRAVELING-WAVE TUBE AMPLIFIER COMPOSED OF A TRAVELING-WAVE TUBE EQUIPPED WITH AN INPUT AND AN OUTPUT WAVEGUIDES, A DIRECTIONAL COUPLER HAVING FIRST, SECOND, AND THIRD ARMS, SAID FIRST ARM BEING CONNECTED TO SAID OUTPUT WAVEGUIDE, SAID SECOND ARM IN WHICH AN ELECTROMAGNETIC WAVE FROM SAID FIRST ARM PASSES BEING CONNECTED TO SAID INPUT WAVEGUIDE, SAID THIRD ARM THROUGH WHICH AN ELECTROMAGNETIC WAVE FROM SAID FIRST ARM PASSES BEING CAPABLE OF SENDING SAID ELECTROMAGNETIC WAVE TO SAID SECOND ARM, A DIODE INSTALLED IN SAID THIRD ARM SO AS TO SERVE AS AN IMPEDANCE AGAINST AN ELECTROMAGNETIC WAVE PROPAGATED THERETHROUGH, MEANS FOR DETECTING A PORTION OF THE OUTPUT OF SAID TRAVELING WAVE TUBE AMPLIFIER, MEANS RESPONSIVE TO SAID DETECTED OUTPUT FOR CONTROLLING THE IMPEDANCE OF SAID DIODE SO AS TO MAKE SAID IMPEDANCE APPROXIMATE THE CHARACTERISTIC IMPEDANCE OF SAID THIRD ARM.
References Cited (Backward Citations)
US2795698A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-16 | 1967-03-18 | 1967-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-16 | 1971-03-18 | 1971-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-16 | 1975-03-18 | 1975-09-17 | $7700.00 | Window Closed / Lapsed |