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WO2003001625A1 - Ensembles de guides d'ondes - Google Patents

Ensembles de guides d'ondes Download PDF

Info

Publication number
WO2003001625A1
WO2003001625A1 PCT/GB2002/002737 GB0202737W WO03001625A1 WO 2003001625 A1 WO2003001625 A1 WO 2003001625A1 GB 0202737 W GB0202737 W GB 0202737W WO 03001625 A1 WO03001625 A1 WO 03001625A1
Authority
WO
WIPO (PCT)
Prior art keywords
members
waveguide assembly
waveguide
components
channels
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/GB2002/002737
Other languages
English (en)
Inventor
John Louis Frederick Charles Collins
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.)
FORTEL TECHNOLOGIES Inc
Original Assignee
FORTEL TECHNOLOGIES Inc
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 FORTEL TECHNOLOGIES Inc filed Critical FORTEL TECHNOLOGIES Inc
Publication of WO2003001625A1 publication Critical patent/WO2003001625A1/fr
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
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/185—Phase-shifters using a diode or a gas filled discharge tube

Definitions

  • This invention relates to waveguide assemblies and is particularly, but not exclusively applicable to waveguide assemblies for use as phased arrays.
  • phased array for use, for example, as a microwave antenna by providing a waveguide assembly having appropriate physical dimensions and positioning phase shifting components at specified locations within the assembly. To achieve controlled phase shift, it is also necessary to apply a bias voltage to the phase shifting components.
  • the present invention provides a waveguide assembly comprising first and second generally planar components formed of an insulating material coated on one side with a conductive material; at least one of the first and second components being formed with channels which are open to the side coated with the conductive material such that, when the first and second components are placed face-to-face, closed metallic channels are formed to act as waveguides; the assembly further including a bias voltage structure comprising electrically conductive tracks formed on one of the first and second members and separated from the metallic coating of the said one member by an insulating layer, and an insulating layer formed on the other of the first and second members in locations to overlie the conductive tracks.
  • the first and second members are moulded plastics members, for example injection moulded, or vacuum formed.
  • the metallic coating is preferably formed by electroless copper plating to provide a continuous copper layer, typically 3 microns thick.
  • the insulating layers and metallic tracks may suitably be in the region of 0.1 microns thick.
  • the invention further provides a phased array for microwave radiation, comprising a waveguide assembly as defined above, and a plurality of phase shifting components disposed with the waveguide channels at predetermined locations, said conductive tracks extending into said waveguide channels at said predetermined locations for connecting a bias voltage to the phase shifting components.
  • Fig. 1 is an exploded perspective view of part of one form of waveguide assembly in accordance with the invention
  • Fig. 2 is a cross-section through part of the assembly of Fig. 1
  • Fig. 3 is a schematic perspective view of part of a phased array utilising the assembly of Fig. 1.
  • a waveguide assembly comprises a first generally planar member or upper sheet 10, and a second generally planar member or lower sheet 12.
  • the upper sheet 10 is formed to define an open channel 14, and the lower sheet 12 is likewise formed to define an open channel 16.
  • the channels 14, 16 form a closed channel defining a waveguide which, in known fashion, has transverse dimensions suitable for propagating a predetermined frequency and form of microwave radiation.
  • the sheets 10 and 12 comprise a shaped plastics base 20 having one surface metallised at 22.
  • the base 20 is moulded from a suitable plastics material, suitably by injection moulding or, as in the present embodiment, vacuum moulding a thin rigid sheet.
  • the metallisation 22 in this embodiment is copper with a thickness of 3 microns deposited by, for example, electroless plating.
  • a conductor network is provided within the assembly as follows.
  • An insulation substrate 24, 0.1 micron thick, is deposited on the lower sheet 12 on top of the metallisation 22.
  • a conductive substrate 26, 0.1 micron thick, is deposited on top of and centrally within the width of the insulation substrate 24.
  • a matching insulation substrate 28, 0.1 micron thick, is deposited on the upper sheet 10 on top of the metallisation 22.
  • the insulation substrates 24 and 28 and the conductive substrate 26 can be deposited by processes known in the production of integrated circuits and printed circuit boards. It is convenient to form the various layers 22 - 28 on flat sheets before these are moulded, but alternatively the layers may be laid down after the sheets are moulded.
  • Fig. 3 shows schematically part of a phased array formed using the above assembly.
  • the phased array has waveguide passages 32 containing phase shifting components indicated at 34 which are connected via the conductive network 36 to a source of bias voltage which can be used to control the phase shift.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguides (AREA)
  • Waveguide Aerials (AREA)

Abstract

L'invention concerne un ensemble de guides d'ondes fait d'un premier et d'un deuxième composants généralement planaires, formés d'un matériau isolant recouvert sur l'un des côtés d'un matériau conducteur. Lorsque les premier et deuxième composants sont mis face à face, des canaux métalliques fermés sont formés, qui fonctionnent comme des guides d'ondes. Des tracés conducteurs formés sur les organes fonctionnent comme une structure de tension de polarisation. Les organes sont moulés en plastique et fabriqués, par exemple, au moyen d'un procédé de moulage par injection ou de formage sous vide.
PCT/GB2002/002737 2001-06-20 2002-06-13 Ensembles de guides d'ondes Ceased WO2003001625A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0115029A GB0115029D0 (en) 2001-06-20 2001-06-20 Waveguide assemblies
GB0115029.1 2001-06-20

Publications (1)

Publication Number Publication Date
WO2003001625A1 true WO2003001625A1 (fr) 2003-01-03

Family

ID=9916966

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2002/002737 Ceased WO2003001625A1 (fr) 2001-06-20 2002-06-13 Ensembles de guides d'ondes

Country Status (2)

Country Link
GB (1) GB0115029D0 (fr)
WO (1) WO2003001625A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4020875A (en) * 1974-08-14 1977-05-03 Sony Corporation Waveguide elements
US4028650A (en) * 1972-05-23 1977-06-07 Nippon Hoso Kyokai Microwave circuits constructed inside a waveguide
JPS5991701A (ja) * 1982-11-18 1984-05-26 Mitsubishi Electric Corp ダイオ−ド移相器
EP0357955A1 (fr) * 1988-08-11 1990-03-14 Hughes Aircraft Company Déphaseur avec plaquettes connectées par diodes
EP0844731A1 (fr) * 1996-11-23 1998-05-27 Matra BAe Dynamics (UK) Ltd Emetteurs-récepteurs

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4028650A (en) * 1972-05-23 1977-06-07 Nippon Hoso Kyokai Microwave circuits constructed inside a waveguide
US4020875A (en) * 1974-08-14 1977-05-03 Sony Corporation Waveguide elements
JPS5991701A (ja) * 1982-11-18 1984-05-26 Mitsubishi Electric Corp ダイオ−ド移相器
EP0357955A1 (fr) * 1988-08-11 1990-03-14 Hughes Aircraft Company Déphaseur avec plaquettes connectées par diodes
EP0844731A1 (fr) * 1996-11-23 1998-05-27 Matra BAe Dynamics (UK) Ltd Emetteurs-récepteurs

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 008, no. 206 (E - 267) 20 September 1984 (1984-09-20) *

Also Published As

Publication number Publication date
GB0115029D0 (en) 2001-08-08

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