WO1996008053A1 - Dispositif destine a diviser la sortie de signaux hf a large bande - Google Patents

Dispositif destine a diviser la sortie de signaux hf a large bande Download PDF

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Publication number
WO1996008053A1
WO1996008053A1 PCT/GB1995/002078 GB9502078W WO9608053A1 WO 1996008053 A1 WO1996008053 A1 WO 1996008053A1 GB 9502078 W GB9502078 W GB 9502078W WO 9608053 A1 WO9608053 A1 WO 9608053A1
Authority
WO
WIPO (PCT)
Prior art keywords
sheet metal
ferrite element
broad
band
dividing
Prior art date
Application number
PCT/GB1995/002078
Other languages
English (en)
Inventor
Martin Kohlhaas
Original Assignee
Walter Rose Gmbh & Co. Kg
Raychem Limited
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 Walter Rose Gmbh & Co. Kg, Raychem Limited filed Critical Walter Rose Gmbh & Co. Kg
Priority to AU33941/95A priority Critical patent/AU3394195A/en
Publication of WO1996008053A1 publication Critical patent/WO1996008053A1/fr

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

Definitions

  • the invention relates to a device for dividing the output of broad-band HF-signals (so-called Wilkinson divider), wherein electrical high-frequency conductors are associ ⁇ ated with a ferrite element.
  • Wilkinson divider is described, for example as far as its operation is concerned, in the text book “Hochfrequenzscarias- technik” by Prof. Dr. Nibler in “Kontakt und resistband 140", pages 257/258, and also in EP-B-0 33.3 247.
  • the Wilkinson divider is a 3 dB output divider in which there is no difference of phase at the two outputs.
  • the two resistances of the two outputs are transformed over lambda/4-long lines from 50 ohms to 100 ohms so that, by parallel connection, 50 ohms are again obtained at the input, it being known to decouple the outputs by an internal terminating resistance.
  • One known possible construction for broad-band applications of such a Wilkinson divider comprises winding high-frequency wires around a ferrite core.
  • the problem of the invention is to provide a solution with which, in particular, the manufacture and the handling of such a device are simplified.
  • the high-frequency conductors are in the form of stamped and bent sheet metal strips, regions of which pass through the cavity of a ferrite core.
  • the invention provides for the surfaces of the sheet metal strips to be improved*, for example silver-plated, to increase the conductivity.
  • the cavity of the ferrite core can be matched to the geometry of the sheet metal strip regions that pass through it, and then the cavity can be, for example, substantially rectangular or square in cross-section.
  • an insulating layer may also be provided according to the invention.
  • Fig. 1 and 2 are simplified three-dimensional representa ⁇ tions of the device according to the invention in different views and
  • Fig. 3 is a side view of the device according to the invention.
  • the device generally designated 1 substantially consists of a ferrite element 2 of approximately rectangular cross-section, having an inner, again approximately rectangular, through-bore 3 through which two sheet metal strips 4 and 5 pass.
  • the sheet metal strips 4 and 5 are folded into several portions in the manner clear from the drawings.
  • Fig. 1 and 2 the individual portions of the sheet metal strip 5 are shown hatched, whereas the sheet metal strip 4 is shown unhatched. It will be seen that the two sheet metal strips have two end portions 6 lying side by side, which form the input of the Wilkinson divider, i.e. from an electrical point of view are able to form a unit. Those two portions lie behind the plane of the drawing in Fig. 3.
  • the middle portions 7 and 8 of the sheet metal strips 4 and 5 shown in Fig. 3 are electrically separated from each other by an insulator 9, and the associated outputs are designated 10 in the case of sheet metal strip 4 and 11 in the case of sheet metal strip 5.
  • the input 6 and the outputs 10 and 11 lie in one plane, so that the device 1 can be fastened to a board in a simple manner.
  • the conductors 4 and 5 are folded in such a manner that a very compact, closed construction is obtained.
  • the existing embodiment of the invention can, of course, still be modified in many respects without departing from the fundamental concept.
  • the ferrite element 2 may also be square, and the individual sheet metal strips 4 and 5, again in multiple parts, may be formed, for example, from individual strips arranged parallel or one above the other, and so on.

Landscapes

  • Coils Or Transformers For Communication (AREA)

Abstract

Dispositif (1) destiné à diviser la sortie de signaux HF à large bande (diviseur dit de Wilkinson) dans lequel des conducteurs à haute fréquence sont associés à un élément en ferrite, ce qui permet, en particulier, de simplifier la fabrication et la manipulation d'un dispositif de ce type. On parvient à cette simplification en utilisant des conducteurs à haute fréquence se présentant sous forme de bandes (4, 5) de tôle frappée et pliée, dont certaines régions passent à travers la cavité (3) de l'élément en ferrite (2).
PCT/GB1995/002078 1994-09-06 1995-09-04 Dispositif destine a diviser la sortie de signaux hf a large bande WO1996008053A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU33941/95A AU3394195A (en) 1994-09-06 1995-09-04 Device for dividing the output of broad-band hf-signals

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4431722 1994-09-06
DEP4431722.0 1994-09-06

Publications (1)

Publication Number Publication Date
WO1996008053A1 true WO1996008053A1 (fr) 1996-03-14

Family

ID=6527549

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB1995/002078 WO1996008053A1 (fr) 1994-09-06 1995-09-04 Dispositif destine a diviser la sortie de signaux hf a large bande

Country Status (2)

Country Link
AU (1) AU3394195A (fr)
WO (1) WO1996008053A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091743A (en) * 1960-01-04 1963-05-28 Sylvania Electric Prod Power divider
GB1143915A (en) * 1967-02-01 1969-02-26 Philips Electronic Associated Splitter device for high-frequency connections
EP0126169A1 (fr) * 1983-05-19 1984-11-28 ANT Nachrichtentechnik GmbH Distributeur pour énergie de haute fréquence

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3091743A (en) * 1960-01-04 1963-05-28 Sylvania Electric Prod Power divider
GB1143915A (en) * 1967-02-01 1969-02-26 Philips Electronic Associated Splitter device for high-frequency connections
EP0126169A1 (fr) * 1983-05-19 1984-11-28 ANT Nachrichtentechnik GmbH Distributeur pour énergie de haute fréquence

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Y. KONISHI ET AL.: "Consideration on the frequency limitation of Wilkinson power divider with coupled wires in ferrite", IEEE TRANSACTIONS ON BROADCASTING, vol. 39, no. 4, NEW YORK US, pages 364 - 367, XP000514972 *

Also Published As

Publication number Publication date
AU3394195A (en) 1996-03-27

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