Wave transmission lines and networks – Coupling networks – Delay lines including long line elements
Patent
1990-09-04
1992-12-22
LaRoche, Eugene R.
Wave transmission lines and networks
Coupling networks
Delay lines including long line elements
315 35, H01J 2327
Patent
active
051736691
ABSTRACT:
The helix (10) of a slow-wave structure of a traveling wave tube is supported by a number of spaced dielectric blocks (34, 36) that are carried by a helical ribbon (26) in registry with the helix (10) itself. Registration of the ribbon (26) and its blocks (34, 36) with the helix structure (10) is facilitated by first winding a guide wire (40) in the spaces (16) between successive turns of the helix (10), to extend into and protrude radially outwardly from the spaces (16). After use of the guide wire (40) to align the ribbon-supported dielectric blocks (34, 36), the guide wire (40) is removed and the assembly of helix (10), blocks (34, 36) and supporting ribbon (26) is secured in its tubular envelope (20) by brazing, coining or heat-shrinking.
REFERENCES:
patent: 2889487 (1959-06-01), Birdsall et al.
patent: 3519964 (1970-07-01), Chorney et al.
patent: 3670196 (1972-06-01), Smith
patent: 3691630 (1972-09-01), Burgess et al.
patent: 4185225 (1980-01-01), Doehler et al.
patent: 4229676 (1980-10-01), Manoly
patent: 4278914 (1981-07-01), Harper
patent: 4647816 (1987-03-01), Heynisch
Denson-Low W. K.
Gudmestad Terje
Hughes Aircraft Company
LaRoche Eugene R.
Lee Benny T.
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