Patent US5421885A successfully refreshed from Google Patents.
Patent US3666983A successfully refreshed from Google Patents.
US3666983A
Expired / Lapsed
US
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Wave propagating structure for crossed field devices
Assignee: Raytheon Co
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Filing: 1970-12-28
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Granted: 1972-05-30
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Expires: 1990-12-28
Abstract
Abstract A wave propagating structure having broad bandwidth capability is disclosed for crossed field electron beam interaction devices. The thermal dissipation characteristics are programmed and customized taking into consideration beam coupling impedance, dielectric loading and suppression of undesired space harmonic modes. A structure such as a modified helix delay line is arranged with groupings of individual elements in parallel and such groupings are serially connected. A fluid coolant is circulated through the delay line and the dielectric constant characteristics of such coolant may be selected to vary the frequency determining dispersion parameters of predetermined portions of the propagating wave.
Inventors
- 👤 Hans-Joachim Krah
- 👤 John S Sklenak
- 👤 William A Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:25
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/005; H01J23/16; H01J23/24; H01J23/26; H01J25/00; H01J25/34; H01J25/42; H01J25/44
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
104 words
In combination: means for directing a beam of electrons along a predetermined interaction path; means for propagating electromagnetic wave energy adjacent to said path in energy exchanging relationship with said beam; said propagating means comprising predetermined groupings of a plurality of hollow periodic parallel disposed circuit elements with each of said elements having at least one end supported by nonelectrically-conductive means; an electrically conductive member interconnecting adjacent elements to advance said wave energy; and means for circulating a cooling fluid through said circuit elements; said groupings of circuit elements being serially interconnected to provide programmed thermal dissipation over selected regions of said propagating means.
Claim 2
Dependent Claim
104 words
In combination: means for directing a beam of electrons along a predetermined interaction path; means for propagating electromagnetic wave energy adjacent to said path in energy exchanging relationship with said beam; said propagating means comprising predetermined groupings of a plurality of hollow periodic parallel disposed circuit elements with each of said elements having at least one end supported by nonelectrically-conductive means; an electrically conductive member interconnecting adjacent elements to advance said wave energy; and means for circulating a cooling fluid through said circuit elements; said groupings of circuit elements being serially interconnected to provide programmed thermal dissipation over selected regions of said propagating means.
Claim 3
Dependent Claim
80 words
A periodic electromagnetic wave propagating structure comprising: a plurality of parallel disposed hollow circuit elements in a cooling array with predetermined programmed groupings of said elements for intense thermal energy dissipation over a selected portion of the overall length of the structure; said elements being supported by nonelectrically-conductive means; said groupings of circuit elements being serially interconnected; an electrically conductive member interconnecting adjacent elements to advance said wave energy; and means for circulating a cooling fluid through said circuit elements.
Claim 4
Dependent Claim
80 words
A periodic electromagnetic wave propagating structure comprising: a plurality of parallel disposed hollow circuit elements in a cooling array with predetermined programmed groupings of said elements for intense thermal energy dissipation over a selected portion of the overall length of the structure; said elements being supported by nonelectrically-conductive means; said groupings of circuit elements being serially interconnected; an electrically conductive member interconnecting adjacent elements to advance said wave energy; and means for circulating a cooling fluid through said circuit elements.
Claim 5
Dependent Claim
28 words
The wave propagating structure according to claim 2 wherein said grouping of elements for more intense thermal energy dissipation covers a minor portion of the overall structure length.
Claim 6
Dependent Claim
148 words
A crossed field electron interaction Device comprising: an envelope; a periodic electromagnetic wave energy propagating structure; an electrode coextensive with and spaced from said structure to define an interaction path; means for generating and directing a beam of electrons along said path in energy exchanging relationship with said wave energy traveling along said structure; crossed electric and magnetic fields disposed with said interaction path; said wave propagating structure comprising predetermined groupings of a plurality of hollow periodic parallel disposed circuit elements each supported by nonelectrically conductive means; and an electrically conductive member for providing electrical circuit continuity interconnecting adjacent elements; output means for coupling energy appended to one end of said propagating structure; and means for circulating a cooling fluid through said circuit elements; said groupings of circuit elements being serially interconnected to provide for programmed more intense thermal energy dissipation over selected regions of said propagating structure.
Claim 7
Dependent Claim
148 words
A crossed field electron interaction Device comprising: an envelope; a periodic electromagnetic wave energy propagating structure; an electrode coextensive with and spaced from said structure to define an interaction path; means for generating and directing a beam of electrons along said path in energy exchanging relationship with said wave energy traveling along said structure; crossed electric and magnetic fields disposed with said interaction path; said wave propagating structure comprising predetermined groupings of a plurality of hollow periodic parallel disposed circuit elements each supported by nonelectrically conductive means; and an electrically conductive member for providing electrical circuit continuity interconnecting adjacent elements; output means for coupling energy appended to one end of said propagating structure; and means for circulating a cooling fluid through said circuit elements; said groupings of circuit elements being serially interconnected to provide for programmed more intense thermal energy dissipation over selected regions of said propagating structure.
Claim 8
Dependent Claim
34 words
The device according to claim 4 wherein one region provides for more intense thermal energy dissipation over approximately one-third of the overall length of said propagating structure adjacent to the output energy coupling end.
Claim 9
Dependent Claim
34 words
The device according to claim 4 wherein said region of more intense thermal energy dissipation is coupled to separate means for circulating a cooling fluid independently of the remainder of the wave propagating structure.
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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) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |