US3239713A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High frequency mode transformation between balanced transmission line and waveguide, useful in travelling wave tubes
Assignee: MA Com Inc
•
Filing: 1963-03-25
•
Granted: 1966-03-08
•
Expires: 1983-03-25
Abstract
No abstract record available.
Inventors
- 👤 Kenneth R Evans
- 👤 Charles S Biechler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:42
CPC Classifications
H; H01; H01P; H01P5/00; H01P5/08; H01J; H01J23/00; H01J23/36; H01J23/40; H01J23/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
135 words
APPARATUS FOR TRANSFORMING A HIGH FREQUENCY SIGNAL BETWEEN A BALANCED MODE IN A TRANSMISSION LINE AND A DESIRED MODE IN A WAVEGUIDE COMPRISING: TRANSMISSION LINE MEANS HAVING AT LEAST A FIRST CONDUCTOR AND A SECOND CONDUCTOR ADAPTED TO PROPAGATE SAID SIGNAL IN A BALANCED MODE, WAVEGUIDE MEANS ADAPTED TO PROPAGATE SAID SIGNAL IN SAID DESIRED MODE, ANTENNA MEANS IN SAID WAVEGUIDE MEANS EXTENDING FROM AN INNER WALL TO THE AXIAL REGION THEREOF AND ORIENTED TO COUPLE WITH SAID SIGNAL IN SAID DESIRED MODE, SAID FIRST CONDUCTOR AND SAID SECOND CONDUCTOR EACH TERMINATING WITHIN SAID WAVEGUIDE SUBSTANTIALLY IN SAID REGION, AND MEANS DIRECTLY CONNECTING SAID FIRST CONDUCTOR WITH SAID ANTENNA MEANS IN SAID AXIAL REGION, SAID SECOND CONDUCTOR TERMINATING IN SAID AXIAL REGION SPACED FROM AND MAKING NO PHYSICAL OR ELECTRICAL CONTACT WITH SAID WAVEGUIDE MEANS.
Claim 2
Dependent Claim
135 words
APPARATUS FOR TRANSFORMING A HIGH FREQUENCY SIGNAL BETWEEN A BALANCED MODE IN A TRANSMISSION LINE AND A DESIRED MODE IN A WAVEGUIDE COMPRISING: TRANSMISSION LINE MEANS HAVING AT LEAST A FIRST CONDUCTOR AND A SECOND CONDUCTOR ADAPTED TO PROPAGATE SAID SIGNAL IN A BALANCED MODE, WAVEGUIDE MEANS ADAPTED TO PROPAGATE SAID SIGNAL IN SAID DESIRED MODE, ANTENNA MEANS IN SAID WAVEGUIDE MEANS EXTENDING FROM AN INNER WALL TO THE AXIAL REGION THEREOF AND ORIENTED TO COUPLE WITH SAID SIGNAL IN SAID DESIRED MODE, SAID FIRST CONDUCTOR AND SAID SECOND CONDUCTOR EACH TERMINATING WITHIN SAID WAVEGUIDE SUBSTANTIALLY IN SAID REGION, AND MEANS DIRECTLY CONNECTING SAID FIRST CONDUCTOR WITH SAID ANTENNA MEANS IN SAID AXIAL REGION, SAID SECOND CONDUCTOR TERMINATING IN SAID AXIAL REGION SPACED FROM AND MAKING NO PHYSICAL OR ELECTRICAL CONTACT WITH SAID WAVEGUIDE MEANS.
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) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |