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WO1999033139A3 - Directional coupler for high power rf signals - Google Patents

Directional coupler for high power rf signals Download PDF

Info

Publication number
WO1999033139A3
WO1999033139A3 PCT/SE1998/002410 SE9802410W WO9933139A3 WO 1999033139 A3 WO1999033139 A3 WO 1999033139A3 SE 9802410 W SE9802410 W SE 9802410W WO 9933139 A3 WO9933139 A3 WO 9933139A3
Authority
WO
WIPO (PCT)
Prior art keywords
conduit
signals
directional coupler
lower conductive
conductive strip
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.)
Ceased
Application number
PCT/SE1998/002410
Other languages
French (fr)
Other versions
WO1999033139A2 (en
Inventor
Gunnar Persson
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.)
Allgon AB
Original Assignee
Allgon AB
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 Allgon AB filed Critical Allgon AB
Priority to AU21939/99A priority Critical patent/AU2193999A/en
Publication of WO1999033139A2 publication Critical patent/WO1999033139A2/en
Publication of WO1999033139A3 publication Critical patent/WO1999033139A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
    • H01P5/185—Edge coupled lines

Landscapes

  • Waveguides (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)

Abstract

A directional coupler for coupling an RF signal from a first conduit (30) to an adjacent second conduit (20), said first and second conduits having parallel conduit portions located side by side, each of said conduit portions comprising a sandwich structure with an upper conductive strip (20; 30), an intermediate layer (1) constituted by said dielectric substrate material and a lower conductive strip connected to said upper strip, so as to eliminate any electrical field in said intermediate layer. The upper and lower conductive strip (20; 30) cooperates with upper and lower ground plane layers, respectively located at a distance therefrom, the two parallel conduit portions being surrounded sideways by air gaps (40) therebetween, whereby the RF signals will propagate with the electric fields being located substantially in air gaps surrounding the upper and lower conductive strips.
PCT/SE1998/002410 1997-12-19 1998-12-21 Directional coupler for high power rf signals Ceased WO1999033139A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU21939/99A AU2193999A (en) 1997-12-19 1998-12-21 Directional coupler for high power rf signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9704795-5 1997-12-19
SE9704795A SE9704795D0 (en) 1997-12-19 1997-12-19 Directional coupler for high power RF signals

Publications (2)

Publication Number Publication Date
WO1999033139A2 WO1999033139A2 (en) 1999-07-01
WO1999033139A3 true WO1999033139A3 (en) 1999-09-02

Family

ID=20409501

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1998/002410 Ceased WO1999033139A2 (en) 1997-12-19 1998-12-21 Directional coupler for high power rf signals

Country Status (3)

Country Link
AU (1) AU2193999A (en)
SE (1) SE9704795D0 (en)
WO (1) WO1999033139A2 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE518100C2 (en) 2000-12-04 2002-08-27 Ericsson Telefon Ab L M Directional switch, antenna interface unit and radio base station including antenna interface unit
AU2003224574A1 (en) * 2003-04-25 2004-11-23 Telefonaktiebolaget Lm Ericsson (Publ) An improved directional coupler
FI124514B (en) * 2006-05-12 2014-09-30 Filtronic Comtek Oy The directional coupler
EP2293381B1 (en) * 2009-08-27 2016-11-09 Delphi International Operations Luxembourg S.à r.l. Antenna assembly
JP5786902B2 (en) * 2013-06-26 2015-09-30 株式会社村田製作所 Directional coupler
US10673119B2 (en) * 2017-10-20 2020-06-02 Raytheon Company Highly directive electromagnetic coupler with electrically large conductor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383226A (en) * 1979-03-29 1983-05-10 Ford Aerospace & Communications Corporation Orthogonal launcher for dielectrically supported air stripline
US4521755A (en) * 1982-06-14 1985-06-04 At&T Bell Laboratories Symmetrical low-loss suspended substrate stripline
FR2628572A1 (en) * 1988-03-11 1989-09-15 Thomson Csf Hyperfrequency transmission line on substrate - uses ribbons above and below substrate which are connected by metallised holes to form waveguide of constant characteristic impedance
FR2665579A1 (en) * 1990-08-03 1992-02-07 Tekelec Airtronic Sa Directional coupler device for UHF electromagnetic waves

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4383226A (en) * 1979-03-29 1983-05-10 Ford Aerospace & Communications Corporation Orthogonal launcher for dielectrically supported air stripline
US4521755A (en) * 1982-06-14 1985-06-04 At&T Bell Laboratories Symmetrical low-loss suspended substrate stripline
FR2628572A1 (en) * 1988-03-11 1989-09-15 Thomson Csf Hyperfrequency transmission line on substrate - uses ribbons above and below substrate which are connected by metallised holes to form waveguide of constant characteristic impedance
FR2665579A1 (en) * 1990-08-03 1992-02-07 Tekelec Airtronic Sa Directional coupler device for UHF electromagnetic waves

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN; & JP 62114301 A (MITSUBISHI ELECTRIC CORP) 26 May 1987. *

Also Published As

Publication number Publication date
AU2193999A (en) 1999-07-12
SE9704795D0 (en) 1997-12-19
WO1999033139A2 (en) 1999-07-01

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