Patent US5051747A successfully refreshed from Google Patents.
US5051747A
Expired / Lapsed
US
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Interface for cables
Assignee: Carco Electronics
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Filing: 1990-02-27
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Granted: 1991-09-24
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Expires: 2010-02-27
Abstract
Abstract A system for introducing N cables into an anechoic chamber, where N≧1 comprising a channel having an electrically conductive interior, and an electrically conductive entrance in communication with the chamber such that the cables can extend from the channel into the chamber. The system is also comprised of a housing made of a conductive material disposed such that it forms an electrically conductive seal with the channel entrance. There is also a lossy material disposed inside and essentially filling the housing through which the cables extend. In a preferred embodiment, electricaly magnetic radiation having a frequency of up to 100 GHZ is essentially prevented from escaping the chamber. The present invention also pertains to an interface through which N cables, where N≧1, are introduced into a first region having electromagnetic radiation with a frequency at least above 10 GHZ from a second region essentially isolated from the first region such that essentially no electromagnetic radiation between a frequency of 10 GHZ and 100 GHZ escapes from the first region to the second region through the interface.
Inventors
- 👤 Mark W. Harshman
- 👤 Stephen H. Black
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:00
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0018
Claims Analysis
Total Claims: 27
Claim 1
Independent Claim
50 words
An anechoic chamber interface through which cables are introduced into an anechoic chamber comprising: a housing made of a conductive material; and a lossy material disposed inside and filling essentially the housing through which the cables extend, said cables having an insulation layer throughout the housing that the cables extend.
Claim 2
Dependent Claim
50 words
An anechoic chamber interface through which cables are introduced into an anechoic chamber comprising: a housing made of a conductive material; and a lossy material disposed inside and filling essentially the housing through which the cables extend, said cables having an insulation layer throughout the housing that the cables extend.
Claim 3
Dependent Claim
25 words
An interface as described in claim 1 wherein the cables extend through the housing isolated from each other and the housing by the lossy material.
Claim 4
Dependent Claim
69 words
An interface as described in claim 2 wherein the housing has a first side and a second side; and including a first plate and a second plate that sealingly fit to the housing at the first side and second side, respectively, such that the lossy material cannot escape from inside the housing, said first plate and second plate having cable holes through which the cables extend through the housing.
Claim 5
Dependent Claim
41 words
An interface as described in claim 3 including an RF connector disposed such that it forms an electrically conductive seal with the housing in proximity to its second side and the cables that extend therethrough further extend to the RF connector.
Claim 6
Dependent Claim
31 words
An interface as described in claim 3 wherein the housing has an opening with a sealingly attachable cover covering the opening, said lossy material introduced into the housing through the opening.
Claim 7
Dependent Claim
32 words
An interface as described in claim 5 including a potting material disposed on the outside of the first plate and second plate which have the cables extending therethrough via the cable holes.
Claim 8
Dependent Claim
17 words
An interface as described in claim 6 wherein the housing is essentially cylindrical and made of copper.
Claim 9
Dependent Claim
17 words
An interface as described in claim 7 wherein the first and second plates are made of nylon.
Claim 10
Independent Claim
67 words
A system for introducing N cables into an anechoic chamber comprising: a channel having an electrically conductive interior, and an electrically conductive entrance through which the cables extend into the chamber; a housing made of a conductive material disposed such that it forms an electrically conductive seal with the channel entrance; and a lossy material disposed inside and filling essentially the housing through which the cables extend.
Claim 11
Independent Claim
67 words
A system for introducing N cables into an anechoic chamber comprising: a channel having an electrically conductive interior, and an electrically conductive entrance through which the cables extend into the chamber; a housing made of a conductive material disposed such that it forms an electrically conductive seal with the channel entrance; and a lossy material disposed inside and filling essentially the housing through which the cables extend.
Claim 12
Dependent Claim
25 words
A system as described in claim 9 wherein the cables extend through the housing isolated from each other and the housing by the lossy material.
Claim 13
Dependent Claim
81 words
A system as described in claim 10 wherein the housing has a first side and a second side; and including a first plate and a second plate that sealingly fit to the housing at the first side and second side, respectively, such that the lossy material cannot escape from inside the housing, said first plate and second plate having cable holes through which the cables extend through the housing, said first side forming an electrically conductive seal with the channel entrance.
Claim 14
Dependent Claim
55 words
A system as described in claim 11 including an RF connector disposed such that it forms an electrically conductive seal with the housing in proximity to its second side and the cables that extend therethrough further extend to the RF connector, said channel, housing and RF connector connected together such that they form a waveguide.
Claim 15
Dependent Claim
31 words
A system as described in claim 11 wherein the housing has an opening with a sealingly attachable cover covering the opening, said lossy material introduced into the housing through the opening.
Claim 16
Dependent Claim
32 words
A system as described in claim 13 including a potting material disposed on the outside of the first plate and second plate which have the cables extending therethrough via the cable holes.
Claim 17
Dependent Claim
17 words
A system as described in claim 14 wherein the housing is essentially cylindrical and made of copper.
Claim 18
Dependent Claim
24 words
A system as described in claim 15 wherein the first and second plates are made of nylon and the lossy material is powdered graphite.
Claim 19
Dependent Claim
122 words
An anechoic chamber interface for introducing N cables into an anechoic chamber, where N≧1, and essentially preventing electromagnetic radiation having a frequency of up to 100 GHZ from escaping the chamber comprised of a first portion which essentially prevents electromagnetic radiation between 10 GHZ and 100 GHZ from escaping the chamber, and a second portion which essentially prevents electromagnetic radiation between 100 MHZ and 10 GHZ from escaping the chamber, said first portion and second portion connected to form a waveguide, wherein the first portion includes a housing made of a conductive material; and a lossy material disposed inside and filling essentially the housing through which the cables extend, said cables having an insulation layer throughout the housing that the cables extend.
Claim 20
Dependent Claim
122 words
An anechoic chamber interface for introducing N cables into an anechoic chamber, where N≧1, and essentially preventing electromagnetic radiation having a frequency of up to 100 GHZ from escaping the chamber comprised of a first portion which essentially prevents electromagnetic radiation between 10 GHZ and 100 GHZ from escaping the chamber, and a second portion which essentially prevents electromagnetic radiation between 100 MHZ and 10 GHZ from escaping the chamber, said first portion and second portion connected to form a waveguide, wherein the first portion includes a housing made of a conductive material; and a lossy material disposed inside and filling essentially the housing through which the cables extend, said cables having an insulation layer throughout the housing that the cables extend.
Claim 21
Dependent Claim
101 words
An interface through which N cables, where N≧1, are introduced into a first region having electromagnetic radiation with a frequency at least above 10 GHZ from a second region essentially isolated from the first region such that essentially no electromagnetic radiation between a frequency of 10 GHZ and 100 GHZ escapes from the first region to the second region through the interface, said interface comprising: a housing made of a conductive material; and a lossy material disposed inside and filling essentially the housing through which the cables extend, said cables having an insulation layer throughout the housing that the cables extend.
Claim 22
Dependent Claim
101 words
An interface through which N cables, where N≧1, are introduced into a first region having electromagnetic radiation with a frequency at least above 10 GHZ from a second region essentially isolated from the first region such that essentially no electromagnetic radiation between a frequency of 10 GHZ and 100 GHZ escapes from the first region to the second region through the interface, said interface comprising: a housing made of a conductive material; and a lossy material disposed inside and filling essentially the housing through which the cables extend, said cables having an insulation layer throughout the housing that the cables extend.
Claim 23
Dependent Claim
27 words
An interface as described in claim 8 wherein the thickness of the insulation layer is less than one half the wavelength of radiation sought to be attenuated.
Claim 24
Dependent Claim
22 words
An interface as described in claim 19 wherein the attachable cover includes a copper o-ring to seal the cover with the housing.
Claim 25
Dependent Claim
21 words
A system as described in claim 16 wherein said cables have an insulation layer throughout the housing that the cable extends.
Claim 26
Dependent Claim
27 words
A system as described in claim 21 wherein the thickness of the insulation layer is less than one half the wavelength of radiation sought to be attenuated.
Claim 27
Dependent Claim
22 words
A system as described in claim 22 wherein the attachable cover includes a copper o-ring to seal the cover with the housing.
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) | 1994-09-23 | 1995-03-25 | 1995-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-23 | 1999-03-25 | 1999-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-23 | 2003-03-25 | 2003-09-24 | $7700.00 | Window Closed / Lapsed |