EP3389133A1 - Câble de guide d'ondes diélectrique - Google Patents

Câble de guide d'ondes diélectrique Download PDF

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Publication number
EP3389133A1
EP3389133A1 EP17181915.4A EP17181915A EP3389133A1 EP 3389133 A1 EP3389133 A1 EP 3389133A1 EP 17181915 A EP17181915 A EP 17181915A EP 3389133 A1 EP3389133 A1 EP 3389133A1
Authority
EP
European Patent Office
Prior art keywords
dielectric
waveguide cable
dielectric waveguide
layer
cable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP17181915.4A
Other languages
German (de)
English (en)
Inventor
Florian Westenkirchner
Raimund Klapfenberger
Rainer BIPPUS
Dr. Gunnar Armbrecht
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rosenberger Hochfrequenztechnik GmbH and Co KG
Original Assignee
Rosenberger Hochfrequenztechnik GmbH and Co KG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rosenberger Hochfrequenztechnik GmbH and Co KG filed Critical Rosenberger Hochfrequenztechnik GmbH and Co KG
Publication of EP3389133A1 publication Critical patent/EP3389133A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/16—Dielectric waveguides, i.e. without a longitudinal conductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/12—Hollow waveguides
    • H01P3/122—Dielectric loaded (not air)
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/12—Hollow waveguides
    • H01P3/127—Hollow waveguides with a circular, elliptic, or parabolic cross-section

Definitions

  • the present invention relates to a dielectric waveguide cable and a method of manufacturing a dielectric waveguide cable.
  • Gigahertz electromagnetic wave non-dielectric waveguide cables are known.
  • Dielectric waveguide cables such as fiber or POF for the optical transmission of signals with a frequency in the terahertz range have long been known.
  • Such cables usually have quartz glass or PMMA (polymethylmethacrylate).
  • the EP 1 619 311 5 A1 shows an advantageous dielectric waveguide cable for use in the gigahertz range.
  • All of the aforementioned dielectric waveguide cables have the problem that the core must withstand the processing temperature at which the sheath is applied to the core.
  • the core of the processing temperature does not stand, it will fuse the core with the shell. This adversely affects the transmission characteristics of the waveguide cable.
  • the present invention has the object to provide a dielectric waveguide cable with improved transmission properties.
  • the idea underlying the present invention is to protect a first dielectric of a dielectric waveguide cable during production by a separating layer.
  • the separation layer is disposed between two dielectrics and prevents the dielectrics from melting together during manufacture due to high temperatures.
  • the first dielectric does not bond to the second dielectric, as this would blur the transition between the first dielectric and the second dielectric.
  • the release layer of the invention may be provided in a waveguide cable between a core and a cladding and / or between a cladding and a cladding or between other adjacent dielectric layers.
  • a separation layer having a higher melting point or vaporization point when a liquid separation layer is selected than the processing temperature at which the second dielectric is applied to the separation layer.
  • a separating layer can be selected which does not join or mix with the dielectrics even above its melting or vaporization point.
  • the manufacturing process has a particularly advantageous effect when the release layer is applied to the core of a dielectric waveguide cable before a second dielectric is applied to the release layer by means of extrusion or foam extrusion.
  • the separating layer is free of oil and / or grease. Oils or greases can evaporate at high production temperatures or form undesirable residues. Such residues have been found to be detrimental to the transmission characteristics of a waveguide cable.
  • oil or grease-containing release layers having a high evaporation temperature preferably above about 250 ° C or above 300 ° C, may be used.
  • the separating layer is formed as a film or as a film.
  • the thickness of such a separation layer is between 15 .mu.m and 200 .mu.m, preferably about 25 .mu.m. It is possible to form the release layer as a commercially available film and to apply it to the core or as a film which can be sprayed, for example, as a liquid release agent on the first dielectric to form the release layer. Interface thicknesses in this range have little or negligible effect on the attenuation of the waveguide, so that there are no further restrictions on the permittivity of the separation layer.
  • the melting point of the separating layer is greater than a respective melting point of the first dielectric and of the second dielectric. While this is not mandatory, since separation of the first dielectric from the second dielectric is also effected upon melting of the separation layer, however, the desired effect may be increased by a significant transition between the first and second dielectrics when the separation layer is at the processing temperature Dielectrics withstands.
  • Particularly advantageous are separating layers with melting points of at least 250 ° C., in particular 300 ° C. These temperatures are well above the processing temperature of common materials for the first and second dielectrics, for example PE. Common processing temperatures for the dielectrics are between 130 ° C and 170 ° C.
  • separating layers comprising PTFE or boron nitride are suitable for achieving the desired separation of the first dielectric from the second dielectric.
  • the release layer according to the invention can prevent the core of the waveguide cable from bonding to the sheath when the release layer is formed between the core and the sheath.
  • the release layer of the invention can also prevent the sheath from bonding to the sheath of the waveguide cable when the release layer is formed between the sheath and the sheath.
  • the separating layer according to the invention can be used between any dielectric components of a waveguide cable.
  • the foaming of the shell causes the storage of air in the shell, whereby a particularly clear transition in the permittivity between the core and the shell is achieved. If the core and the shell were to fuse together when the shell was being foamed, the transition in permittivity would be significantly worsened.
  • the separating layer comprises metal, e.g. Aluminum on.
  • the release layer may be formed as aluminum foil or other metallic foil.
  • Aluminum has a high melting temperature of> 600 ° C and is therefore also suitable for materials of the dielectrics with higher melting points than PE.
  • a difference between the permittivity of the first dielectric and the permittivity of the second dielectric is between 0.3 and 2.0, in particular between 0.5 and 1.2, more particularly approximately 0.8.
  • Solid materials with a permittivity of less than 2.0 are currently unknown. These differences in permittivity are thus achieved by incorporating a certain amount of air into the second dielectric. Due to a large difference in the permittivity between the first dielectric and the second dielectric, the guidance of the electromagnetic wave in the first dielectric is improved. As a result, a guide of the electromagnetic wave is possible even with small bending radii.
  • the first and / or the second dielectric comprises polyethylene (PE) and / or polypropylene (PP) and / or polytetrafluoroethylene (PTFE).
  • PE polyethylene
  • PP polypropylene
  • PTFE polytetrafluoroethylene
  • an additive for increasing the temperature resistance may be mixed.
  • the second dielectric is formed as a PE foam, and / or as a braid and / or as at least one band, which surrounds the first dielectric, and / or as a fleece.
  • a waveguide cable according to the invention is used in an optoelectronic connector.
  • dielectric waveguide cable according to the invention is used to transmit an electromagnetic signal from plug contacts to an electronic component, such as an antenna.
  • Plastic foams are suitable for the storage of air with sufficient mechanical stability.
  • the second dielectric may also comprise a plurality of foam, braid or ribbon components.
  • a foam may have multiple dielectric layers of different materials separated by a release layer.
  • the second dielectric can be designed particularly advantageously with respect to mechanical and electrical properties.
  • the permittivity of the second dielectric can be further adjusted.
  • the third dielectric TPE in particular TPE S.
  • TPE in particular TPE S, is a dielectric with a particularly large loss factor and advantageous mechanical properties, in particular with regard to resistance to kinking, and also high flame resistance.
  • the present invention is particularly suitable for use in a dielectric waveguide cable according to the patent application EP 16193115 A1 , the disclosure of which is hereby incorporated by reference in this application.
  • the invention is not limited to this application and can also be used in other dielectric waveguide cables.
  • the FIG. 1 shows a dielectric waveguide cable 10 according to a first embodiment of the invention.
  • the waveguide cable 10 comprises a dielectric core 12 for transmitting an electromagnetic wave, a dielectric sheath 14 for shielding the wave to be transmitted, and a dielectric sheath 16 for mechanical protection of the dielectric waveguide cable 10.
  • a dielectric separation film 18 sprayed on the core is formed.
  • FIG. 2 shows a dielectric waveguide cable 22 according to a second embodiment of the invention. Similar to FIG. 1, the cable 22 has a core 12, a shell 14 and a jacket 16. Between the core 12 and the shell 14, a dielectric release film 20 made of PTFE, which has been applied to the core, is formed.
  • a film may be formed or that between the shell and the shell and a film may be formed.
  • a film differs from a film in that a film is in a solid state of aggregation, whereas a film can also be in a liquid state of aggregation. It can be provided that the film becomes solid or remains liquid after a drying time or curing time.
  • cables according to FIG. 1 and FIG. 2 can also be combined with each other, so that both between the core and the shell and between the shell and the shell in each case a separating layer can be provided.

Landscapes

  • Insulated Conductors (AREA)
  • Waveguides (AREA)
EP17181915.4A 2017-04-10 2017-07-18 Câble de guide d'ondes diélectrique Withdrawn EP3389133A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17000605 2017-04-10

Publications (1)

Publication Number Publication Date
EP3389133A1 true EP3389133A1 (fr) 2018-10-17

Family

ID=58544682

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17181915.4A Withdrawn EP3389133A1 (fr) 2017-04-10 2017-07-18 Câble de guide d'ondes diélectrique

Country Status (3)

Country Link
EP (1) EP3389133A1 (fr)
CN (1) CN110574225A (fr)
WO (1) WO2018188838A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020126717A1 (fr) 2018-12-21 2020-06-25 Huber+Suhner Ag Câble de guide d'ondes diélectrique

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112928415B (zh) * 2021-03-11 2022-04-12 南通大学 一种介质复合型亚太赫兹介质波导传输线

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386043A (en) * 1964-07-31 1968-05-28 Bell Telephone Labor Inc Dielectric waveguide, maser amplifier and oscillator
US4463329A (en) * 1978-08-15 1984-07-31 Hirosuke Suzuki Dielectric waveguide
CA2449596A1 (fr) * 2003-12-05 2005-06-05 Stanislaw Bleszynski Systeme de cablage dielectrique pour micro-ondes millimetriques
US20140368301A1 (en) 2013-06-12 2014-12-18 Texas Instruments Incorporated Dielectric Waveguide with Conductive Coating

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN203982858U (zh) * 2013-11-14 2014-12-03 无锡华昊电器股份有限公司 电缆结构
CN103632759A (zh) * 2013-11-14 2014-03-12 无锡华昊电器股份有限公司 一种电缆结构
US9490869B1 (en) * 2015-05-14 2016-11-08 At&T Intellectual Property I, L.P. Transmission medium having multiple cores and methods for use therewith
WO2017003127A1 (fr) * 2015-06-30 2017-01-05 엘에스전선 주식회사 Fil supraconducteur

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3386043A (en) * 1964-07-31 1968-05-28 Bell Telephone Labor Inc Dielectric waveguide, maser amplifier and oscillator
US4463329A (en) * 1978-08-15 1984-07-31 Hirosuke Suzuki Dielectric waveguide
CA2449596A1 (fr) * 2003-12-05 2005-06-05 Stanislaw Bleszynski Systeme de cablage dielectrique pour micro-ondes millimetriques
US20140368301A1 (en) 2013-06-12 2014-12-18 Texas Instruments Incorporated Dielectric Waveguide with Conductive Coating

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020126717A1 (fr) 2018-12-21 2020-06-25 Huber+Suhner Ag Câble de guide d'ondes diélectrique
US11901602B2 (en) 2018-12-21 2024-02-13 Huber+Suhner Ag Dielectric waveguide cable having a tubular core with an inner surface coated by a high permittivity dielectric

Also Published As

Publication number Publication date
WO2018188838A1 (fr) 2018-10-18
CN110574225A (zh) 2019-12-13

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