EP0360415B1 - Dielektrischer Wellenleiter - Google Patents
Dielektrischer Wellenleiter Download PDFInfo
- Publication number
- EP0360415B1 EP0360415B1 EP89308429A EP89308429A EP0360415B1 EP 0360415 B1 EP0360415 B1 EP 0360415B1 EP 89308429 A EP89308429 A EP 89308429A EP 89308429 A EP89308429 A EP 89308429A EP 0360415 B1 EP0360415 B1 EP 0360415B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- tetrafluoroethylene
- sheet
- electromagnetic wave
- dielectric sheet
- transmission circuit
- 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.)
- Expired - Lifetime
Links
Images
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
Definitions
- This invention relates to a transmission circuit for the transmission of electromagnetic waves of extremely short wavelength, such as microwaves, millimetre waves and submillimetre waves, and particularly relates to a planar transmission circuit.
- Coaxial cables, waveguides, microstrip lines, dielectric lines and other such devices are currently used to transmit these types of electromagnetic waves.
- a core of round or rectangular cross-section is formed by a dielectric of low dielectric loss and relatively high permittivity for transmitting the travelling wave energy of the electromagnetic wave, and the core is surrounded by a dielectric of lower permittivity.
- Surface waveguides composed of an inhomogeneous dielectric film are known from ELECTRONICS AND COMMUNICATIONS IN JAPAN, vol. 51-B, no. 3, 1968, pages 50-54; N. KUMAGAI et al.: "Surface waveguide consisting of inhomogeneous dielectric thin film".
- Other forms of high frequency transmission device have not been considered, and there is thus a problem of how to form circuit networks and to increase circuit density.
- a high frequency transmission circuit comprising a planar dielectric sheet having a continuous porosity, whereby a dielectric material of greater permittivity than the dielectric sheet is impregnated into portions of said dielectric sheet in the thickness direction thereof to form an electromagnetic wave propagating circuit in said planar dielectric sheet.
- a high frequency transmission circuit comprising a continuously porous, planar dielectric sheet having an electromagnetic wave propagating circuit therein formed by a dielectric material of higher permittivity impregnated into the dielectric sheet in the thickness direction thereof.
- the dielectric material forming the electromagnetic wave propagating circuit may be a tetrafluoroethylene-hexafluoropropylene copolymer, a tetrafluoroethylene-perfluoroalkylvinyl ether copolymer, a tetrafluoroethylene-ethylene copolymer or a tetrafluoroethylene dispersion.
- planar dielectric sheet is preferably porous, expanded polytetrafluoroethylene.
- the invention provides a high frequency transmission circuit having good transmission characteristics and capable of being used to expand the circuit in the planar direction.
- Any desired high frequency circuit can be formed with a thin continuously porous, planar dielectric sheet by lamination or other methods.
- the creation of high density, high frequency transmission circuits can also be accomplished.
- Figure 1 shows a high frequency transmission circuit 1 created by forming electromagnetic wave transmission portions 3 and 4 in portions of a porous, planar dielectric sheet 2, the latter being composed of continuously porous, expanded polytetrafluoroethylene film, and optionally laminating a protective film 5 to the upper and lower surfaces of the sheet 2.
- the protective films 5 may each be a prepreg sheet of porous, expanded polytetrafluoroethylene.
- a binder or alternatively, a tetrafluoroethylene resin dispersion and a binder, may be impregnated and fixed in portions of the sheet 2 to form the electromagnetic wave transmission portions 3 and 4.
- the binder may be a Teflon (R.T.M.) adhesive.
- These electromagnetic wave transmission portions 3 and 4 may be formed, for example, as shown in Figure 2, by applying an inverse pattern circuit mask 6 to the planar dielectric sheet 2, then applying the resin powder and binder composition to this circuit pattern portion and allowing natural impregnation to occur due to gravity, or applying a similar mask 6 to the bottom surface of the planar dielectric sheet 2 and facilitating impregnation by means of a vacuum pump 8.
- electromagnetic wave transmission portions 3 and 4 are formed having a permittivity higher than the planar dielectric sheet 2.
- the continuous porosity of the planar dielectric sheet 2 should be of the smallest scale possible, and that the continuous pores should be aligned as much as possible in the direction of the thickness of planar dielectric sheet 2, i.e. perpendicularly to the plane of the sheet, or that the porosity should be high in the thickness direction.
- the present invention allows a high frequency transmission circuit to be formed as a thin sheet, and the rectangular shape of the electromagnetic wave transmission portions maintains the plane of polarization, connections can be made without introducing significant error in the direction of the electromatic waves, and multiple layer devices can easily be produced.
- the invention relies upon impregnation into a continuously porous, planar dielectric sheet to form electromagnetic wave transmission circuit portions, thin devices can be produced and very high density transmission circuits can be made.
Claims (8)
- Hochfrequenz-Übertragungs-Kreis mit einer ebenen di-elektrischen Schicht (2), dadurch gekennzeichnet, daß die genannte Schicht eine kontinuierliche Porosität aufweist, wodurch ein dielektrisches Material mit einer größeren Dielektrizitätskonstanten als die dielektrische Schicht in Abschnitten der genannten dielektrischen Schicht in deren Dicken-Richtung imprägniert wird, um in der genannten ebenen dielektrischen Schicht (2) einen Fortpflanzungs-Kreis (3, 4) für elektromagnetische Wellen zu bilden.
- Übertragungs-Kreis nach Anspruch 1, bei welchem das dielektrische Material des Fortpflanzungs-Kreises (3, 4) für elektromagnetische Wellen ein Tetrafluorethylen-Hexafluorpropylen-Copolymer ist.
- Übertragungs-Kreis nach Anspruch 1, bei welchem das dielektrische Material des Fortpflanzungs-Kreises (3, 4) für elektromagnetische Wellen ein Tetrafluorethylen-Perfluoralkylvinyl-Ether-Copolymer ist.
- Übertragungs-Kreis nach Anspruch 1, bei welchem das dielektrische Material des Fortpflanzungs-Kreises (3,4) für elektromagnetische Wellen ein Tetrafluorethylen-Ethylen-Copolymer ist.
- Übertragungs-Kreis nach Anspruch 1, bei welchem das dielektrische Material des Fortpflanzungs-Kreises (3, 4) für elektromagnetische Wellen eine Tetrafluorethylen-Dispersion ist.
- Übertragungs-Kreis nach einem der vorhergehenden Ansprüche, bei welchem die genannte ebene dielektrische Schicht (2) ein poröses expandiertes Polytetrafluorethylen ist.
- Übertragungs-Kreis nach einem der vorhergehenden Ansprüche, bei welchem die kontinuierlichen Poren der ebenen dielektrischen Schicht (2) hauptsächlich in der Dicken-Richtung der Schicht ausgerichtet sind.
- Übertragungs-Kreis nach einem der vorhergehenden Ansprüche, welcher eine Schutz-Folie (5) aufweist, die auf mindestens eine Seite der ebenen dielektrischen Schicht (2) laminiert ist.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT89308429T ATE99838T1 (de) | 1988-08-19 | 1989-08-18 | Dielektrischer wellenleiter. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP63206178A JPH0254602A (ja) | 1988-08-19 | 1988-08-19 | 高周波伝送回路 |
JP206178/88 | 1988-08-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0360415A1 EP0360415A1 (de) | 1990-03-28 |
EP0360415B1 true EP0360415B1 (de) | 1994-01-05 |
Family
ID=16519105
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP89308429A Expired - Lifetime EP0360415B1 (de) | 1988-08-19 | 1989-08-18 | Dielektrischer Wellenleiter |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0360415B1 (de) |
JP (1) | JPH0254602A (de) |
AT (1) | ATE99838T1 (de) |
AU (1) | AU3943889A (de) |
DE (1) | DE68912043T2 (de) |
GB (1) | GB2222314A (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB9621049D0 (en) * | 1996-10-09 | 1996-11-27 | Secr Defence | Dielectric composites |
JP3886459B2 (ja) * | 2003-01-28 | 2007-02-28 | 株式会社神戸製鋼所 | 誘電体線路の製造方法 |
CN102260378B (zh) * | 2011-05-06 | 2013-03-20 | 广东生益科技股份有限公司 | 复合材料、用其制作的高频电路基板及其制作方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1047896B (de) * | 1952-04-15 | 1958-12-31 | Siemens Ag | Aus ein- oder mehrschichtigem dielektrischem Stoff bestehende Wellenfuehrungsanordnung |
FR1372610A (fr) * | 1963-08-06 | 1964-09-18 | Ligne de transmission avec diélectrique | |
US4463329A (en) * | 1978-08-15 | 1984-07-31 | Hirosuke Suzuki | Dielectric waveguide |
JP2700553B2 (ja) * | 1988-03-31 | 1998-01-21 | 株式会社 潤工社 | 伝送回路 |
-
1988
- 1988-08-19 JP JP63206178A patent/JPH0254602A/ja active Pending
-
1989
- 1989-08-09 AU AU39438/89A patent/AU3943889A/en not_active Abandoned
- 1989-08-18 GB GB8918931A patent/GB2222314A/en not_active Withdrawn
- 1989-08-18 EP EP89308429A patent/EP0360415B1/de not_active Expired - Lifetime
- 1989-08-18 DE DE68912043T patent/DE68912043T2/de not_active Expired - Lifetime
- 1989-08-18 AT AT89308429T patent/ATE99838T1/de not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE68912043T2 (de) | 1994-07-14 |
AU3943889A (en) | 1990-02-22 |
DE68912043D1 (de) | 1994-02-17 |
GB2222314A (en) | 1990-02-28 |
GB8918931D0 (en) | 1989-09-27 |
JPH0254602A (ja) | 1990-02-23 |
EP0360415A1 (de) | 1990-03-28 |
ATE99838T1 (de) | 1994-01-15 |
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