US4066927A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-band low-reflection attenuated delay line
Assignee: Siemens AG
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Filing: 1976-06-08
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Granted: 1978-01-03
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Expires: 1996-06-08
Abstract
Abstract A delay line for traveling-wave tubes, particularly a wideband low-reflection attenuated line for millimeter waves, in the form of a hollow guide having successive transverse walls which define successive line cells, each of such walls having a central opening for the passage of the electron beam and at least one coupling opening, elongated attentuating members being disposed in the respective cells with their longitudinal axes extending parallel to the longitudinal axis of the delay line. The attenuating members are of like effective length and the matching cell lying immediately ahead of and/or behind the attenuating section of the tube contains, in each case, at least one matching member.
Inventors
- 👤 Franz Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:09
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/16; H01J23/24; H01J23/30
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
137 words
In a wide-band, low-reflection attenuated delay line for traveling wave tubes, particularly for the amplification of millimeter waves, the combination of a hollow guide forming an attenuation section having transverse walls defining respective line cells therebetween, which walls each having a central opening for the passage of the electron beam and at least one coupling slot, elongated attenuating members disposed in the respective cells with their longitudinal axes extending at least approximately parallel to the longitudinal axis of the delay line, said attenuating members having a substantially uniform effective penetration depth within the associated cells, and a line cell, forming a matching cell, disposed directly ahead of and/or behind the attenuation section for matching the latter to an adjacent section of the delay line, said matching cell, in each case, containing at least one matching member therein.
Claim 2
Dependent Claim
137 words
In a wide-band, low-reflection attenuated delay line for traveling wave tubes, particularly for the amplification of millimeter waves, the combination of a hollow guide forming an attenuation section having transverse walls defining respective line cells therebetween, which walls each having a central opening for the passage of the electron beam and at least one coupling slot, elongated attenuating members disposed in the respective cells with their longitudinal axes extending at least approximately parallel to the longitudinal axis of the delay line, said attenuating members having a substantially uniform effective penetration depth within the associated cells, and a line cell, forming a matching cell, disposed directly ahead of and/or behind the attenuation section for matching the latter to an adjacent section of the delay line, said matching cell, in each case, containing at least one matching member therein.
Claim 3
Dependent Claim
43 words
A delay line according to claim 1, wherein the ends of the attenuating members, where opposed to a transverse wall, are spaced from such wall, and, where opposed to a like end of an adjacent attenuating member, are spaced a predetermined distance apart.
Claim 4
Dependent Claim
25 words
A delay line according to claim 1, wherein the attenuating members are formed from a ceramic material uniformly coated with a layer of lossy material.
Claim 5
Dependent Claim
19 words
A delay line according to claim 1, wherein the matching members are formed from a ceramic or metal material.
Claim 6
Dependent Claim
17 words
A delay line according to claim 1, wherein each attenuating cell contains a plurality of attenuating members.
Claim 7
Dependent Claim
37 words
A delay line according to claim 1, wherein the attenuating members are secured to associated wall means by a press fit, whereby the attenuating members preferably have a lesser diameter where surrounded by the associated supporting wall.
Claim 8
Dependent Claim
32 words
A delay line according to claim 1, wherein respective apertured walls are provided, each of which subdivides a respective line cell, said attenuating members being supported by the corresponding associated aperture wall.
Claim 9
Dependent Claim
43 words
A delay line according to claim 7, wherein the ends of the attenuating members, where opposed to a transverse wall, are spaced from such wall, and, where opposed to a like end of an adjacent attenuating member, are spaced a predetermined distance apart.
Claim 10
Dependent Claim
25 words
A delay line according to claim 8, wherein the attenuating members are formed from a ceramic material uniformly coated with a layer of lossy material.
Claim 11
Dependent Claim
19 words
A delay line according to claim 9, wherein the matching members are formed from a ceramic or metal material.
Claim 12
Dependent Claim
17 words
A delay line according to claim 10, wherein each attenuating cell contains a plurality of attenuating members.
Claim 13
Dependent Claim
37 words
A delay line according to claim 11, wherein the attenuating members are secured to associated wall means by a press fit, whereby the attenuating members preferably have a lesser diameter where surrounded by the associated supporting wall.
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) | 1981-01-02 | 1981-07-04 | 1982-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-02 | 1985-07-04 | 1986-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-02 | 1989-07-04 | 1990-01-03 | $7700.00 | Window Closed / Lapsed |