US3670196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Helix delay line for traveling wave devices
Assignee: Raytheon Co
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Filing: 1971-02-24
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Granted: 1972-06-13
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Expires: 1991-02-24
Abstract
Abstract A helix type wave propagating delay line structure for high power broadband traveling wave devices is disclosed having a parallel plate transmission line support arrangement with a dielectric interface. Improved thermal energy dissipation is provided with a minimum of disruption of the electrical circuit parameters necessary for electron beam-RF wave interaction. The phase velocity characteristics of the parallel plate support and helix delay line structures are substantially similar.
Inventors
- 👤 Burton H Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:04
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/26; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49016
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
75 words
A traveling wave device comprising: a helical periodic electromagnetic wave energy propagating structure having predetermined electrical characteristics over a predetermined frequency range; means for generating and directing a beam of electrons adjacent to said propagating structure; and a plurality of continuously connected support means disposed coextensive with and contacting said wave propagating structure; said support means defining therebetween a helical parallel plate transmission line having substantially the same electrical characteristics as said wave propagating structure.
Claim 2
Dependent Claim
75 words
A traveling wave device comprising: a helical periodic electromagnetic wave energy propagating structure having predetermined electrical characteristics over a predetermined frequency range; means for generating and directing a beam of electrons adjacent to said propagating structure; and a plurality of continuously connected support means disposed coextensive with and contacting said wave propagating structure; said support means defining therebetween a helical parallel plate transmission line having substantially the same electrical characteristics as said wave propagating structure.
Claim 3
Dependent Claim
89 words
A traveling wave device comprising: a plurality of continuously wound circuit elements forming a helical periodic electromagnetic wave energy propagating structure having predetermined pitch and phase velocity characteristics; means for generating and directing a beam of electrons along the longitudinal axis of said wave propagating structure; and a plurality of continuously connected support means disposed coextensive with and contacting each of said circuit elements; said support means defining therebetween a helical parallel plate transmission line having substantially the same pitch and phase velocity characteristics as said wave propagating structure.
Claim 4
Dependent Claim
89 words
A traveling wave device comprising: a plurality of continuously wound circuit elements forming a helical periodic electromagnetic wave energy propagating structure having predetermined pitch and phase velocity characteristics; means for generating and directing a beam of electrons along the longitudinal axis of said wave propagating structure; and a plurality of continuously connected support means disposed coextensive with and contacting each of said circuit elements; said support means defining therebetween a helical parallel plate transmission line having substantially the same pitch and phase velocity characteristics as said wave propagating structure.
Claim 5
Dependent Claim
21 words
A device according to claim 2 wherein said support means define interface means of a dielectric material contacting each circuit element.
Claim 6
Dependent Claim
90 words
A traveling wave device comprising: an envelope; a plurality of continuously wound circuit elements forming helical periodic electromagnetic wave energy propagating structure having predetermined pitch and phase velocity characteristics; means for generating and directing a beam of electrons along the longitudinal axis of said wave propagating structure; and a plurality of continuously connected support means contacting each of said circuit elements and said envelope; said support means defining therebetween a coaXial helical parallel plate transmission line having substantially the same pitch and phase velocity characteristics as said wave propagating structure.
Claim 7
Dependent Claim
90 words
A traveling wave device comprising: an envelope; a plurality of continuously wound circuit elements forming helical periodic electromagnetic wave energy propagating structure having predetermined pitch and phase velocity characteristics; means for generating and directing a beam of electrons along the longitudinal axis of said wave propagating structure; and a plurality of continuously connected support means contacting each of said circuit elements and said envelope; said support means defining therebetween a coaXial helical parallel plate transmission line having substantially the same pitch and phase velocity characteristics as said wave propagating structure.
Claim 8
Dependent Claim
23 words
A device according to claim 4 wherein said envelope comprises an annular chamber and means for circulating a fluid medium within said chamber.
Claim 9
Dependent Claim
19 words
A device according to claim 5 wherein said chamber is substantially filled with a plurality of thermally conductive bodies.
Claim 10
Dependent Claim
30 words
A device according to claim 4 wherein a tubular conduit is disposed between said envelope and support means with said conduit being coupled to means for circulating a fluid medium.
Claim 11
Dependent Claim
100 words
A traveling wave device comprising: an envelope; a plurality of continuously wound circuit elements forming helical electromagnetic wave energy propagating structure having a predetermined periodicity; means for generating and directing a beam of electrons along the longitudinal axis of said wave propagating structure; and a plurality of conductive lamination members having radial land portions angularly displaced in a predetermined manner to define a substantially helical support array with each of said land portions contacting a circuit element; said land portions defining therebetween a coaxial substantially helical parallel plate transmission line having substantially the same periodicity as said wave propagating structure.
Claim 12
Dependent Claim
100 words
A traveling wave device comprising: an envelope; a plurality of continuously wound circuit elements forming helical electromagnetic wave energy propagating structure having a predetermined periodicity; means for generating and directing a beam of electrons along the longitudinal axis of said wave propagating structure; and a plurality of conductive lamination members having radial land portions angularly displaced in a predetermined manner to define a substantially helical support array with each of said land portions contacting a circuit element; said land portions defining therebetween a coaxial substantially helical parallel plate transmission line having substantially the same periodicity as said wave propagating structure.
Claim 13
Dependent Claim
28 words
A device according to claim 8 wherein said lamination members have a circular body portion collectively defining a portion of said envelope when said members are joined together.
Claim 14
Dependent Claim
25 words
A device according to claim 8 wherein each of said radial land portions define an interface of a dielectric material adjacent to the circuit elements.
Claim 15
Dependent Claim
30 words
A device according to claim 8 wherein each of said lamination members comprise a substantially circular body of a conductive material and a radial land portion of a dielectric material.
Claim 16
Dependent Claim
22 words
A device according to claim 8 wherein each of said land portions define a sector having an angular dimension of approximately 30*.
Claim 17
Dependent Claim
18 words
A device according to claim 8 wherein said land portions are disposed substantially mutually perpendicular to each other.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-13 | 1975-12-13 | 1976-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-13 | 1979-12-13 | 1980-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-13 | 1983-12-13 | 1984-06-13 | $7700.00 | Window Closed / Lapsed |