Electric lamp and discharge devices: systems – Cathode ray tube circuits – Combined cathode ray tube and circuit element structure
Patent
1967-01-16
1978-06-06
Hubler, Malcolm F.
Electric lamp and discharge devices: systems
Cathode ray tube circuits
Combined cathode ray tube and circuit element structure
315 393, H01J 2534
Patent
active
040938921
ABSTRACT:
Ring-and-bar slow wave electronic interaction circuits of the singly and/or doubly connected variety are supported from a surrounding conductive barrel structure via the intermediary of ceramic comb structures which extend along the slow wave circuit. The ceramic "teeth" of the comb structure are brazed at their ends to the connecting bars of the slow wave circuit to enhance thermal conduction from the circuit. The free space between the teeth avoids excessive dielectric loading of the circuit. The "spines" of the ceramic combs are brazed to the barrel to provide good thermally conductive paths from the combs to the barrel for cooling of the slow wave circuit. A microwave tube employing a doubly connected ring-and-bar circuit, supported as aforedescribed, provides a high power structure having a small signal gain bandwidth between 3.7 db points of 6 GHz at Ku band.
REFERENCES:
patent: 2768322 (1956-10-01), Fletcher
patent: 2853642 (1958-09-01), Birdsall et al.
patent: 2885641 (1959-05-01), Birdsall et al.
patent: 3370197 (1968-02-01), Dix
Cole Stanley Z.
Hubler Malcolm F.
Stoddard Robert K.
Varian Associates Inc.
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