EP1536509A1 - Anordnung zur Variation der Parameter einer elektromagnetischen Welle - Google Patents

Anordnung zur Variation der Parameter einer elektromagnetischen Welle Download PDF

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Publication number
EP1536509A1
EP1536509A1 EP04106045A EP04106045A EP1536509A1 EP 1536509 A1 EP1536509 A1 EP 1536509A1 EP 04106045 A EP04106045 A EP 04106045A EP 04106045 A EP04106045 A EP 04106045A EP 1536509 A1 EP1536509 A1 EP 1536509A1
Authority
EP
European Patent Office
Prior art keywords
line
circuit
ferrite
magnetization
layers
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Granted
Application number
EP04106045A
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English (en)
French (fr)
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EP1536509B1 (de
Inventor
Olivier Intellectual Property Thales MAAS
Richard Intellectual Property THALES LEBOURGEOIS
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Thales SA
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Thales SA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/18—Phase-shifters
    • H01P1/19—Phase-shifters using a ferromagnetic device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/22—Attenuating devices
    • H01P1/23—Attenuating devices using ferromagnetic material

Definitions

  • the invention relates to a device for varying the least one component or parameter of an electromagnetic wave.
  • ferrite phase shifter or a microwave attenuator.
  • US Patent 5,774,025 discloses a method of manufacturing a planar phase shifter composed of several layers of ferrite. Layers are metallized by applying a quantity of conductive metal according to a diagram selected. Metallic orifices ensure the connection of layers between them. The whole is then brought to a temperature between 800 ° C and 1000 ° C to obtain an integrated structure.
  • the present invention implements in particular a line triplate that unfolds inside the volume of the material in order to obtain a sufficient length by which it is possible to vary a component of the electromagnetic wave a specific phase shift can be feasible.
  • triplet line or mean a line that consists of a central ribbon placed between two planes of mass.
  • the subject of the invention relates to a device making it possible to vary one or more parameters of a microwave wave, the device comprising at least two layers of ferrite characterized in that has at least one magnetization circuit and a propagation line microwave waves, said line being deployed in the whole or the almost the entire volume of the device.
  • the invention notably offers the possibility of producing a phase-shifter extremely integrated. It also makes it possible to obtain a device that fulfills the attenuator function and / or phase shifter function in a volume restricted.
  • FIG. 1 schematizes the principle used in the device according to the invention where the propagation line 2 of the microwave waves is a triplate line whose substrate 1 is a ferrite material.
  • the width of the line and the thickness of the circuit thus formed are adjusted for example so as to obtain an impedance of 50 ohms.
  • Reference 3 denotes metallization.
  • a reciprocal phase shift effect in the line In a longitudinal magnetization of the ferrite substrate, one obtains example a reciprocal phase shift effect in the line. This phase shift is related to the intensity of the magnetization.
  • one or several parameters of the wave for example to obtain an effect attenuation of the wave.
  • triplate line allows the realization of a multilayer by stacking the triplate lines one on the other. It is sufficient to make an interconnection between the lines by means of metallized holes that connect the central conductors to each other. Employing this process, it is possible to stack several lines triplaques one on the others and thus get a significant electrical length arranged in a volume circuit. Similarly, on the same circuit layer, the line plate can be rolled up to maximize its length for a ferrite surface given.
  • the winding structure of the strip line can be a spiral winding, or any other winding geometry allowing vary, for example, phase, amplitude, or any other parameter of the microwave wave.
  • FIG. 2 represents an external view of a phase-shifting circuit according to the invention. It comprises several layers of substrate 1 (1 1 , 1 2 , ..1 i , ..) stacked on each other. These layers consist for example of ferrite.
  • substrate 1 (1 1 , 1 2 , ..1 i , ..)
  • These layers consist for example of ferrite.
  • an orifice 4 for winding a solenoid 5 having in particular the magnetization function of the phase shifter circuit.
  • the lines of the solenoids are wound around one of the sides of the device, and comprise two ports 6, 7 respectively for the incoming magnetization current and for the outgoing magnetization current.
  • the character volume of the circuit which can be exploited to serve as a circuit of low frequency magnetization.
  • the ferrite which serves as a substrate dielectric at the triplate line, can also be used as low ferrite frequency for the magnetization circuit.
  • the turns of the solenoid which constitutes the circuit of magnetization.
  • the metallization is carried out using a technique known to those skilled in the art.
  • FIG. 3A is a view from above of the upper layer of circuit. This layer is formed of a ferrite substrate 1. On one side of the substrate 1, the coils of the solenoid 5 are wound.
  • FIG. 3B schematizes the second layer comprising a central conductor of the triplate line.
  • This line is for example distributed spirally around the orifice 4.
  • An entry 9 of this line is the input of the microwave signal.
  • the second layer includes a hole metallized 8 allowing the propagation of the microwave between the different levels.
  • the distance between the parts constituting the stripline line is chosen so as to minimize the coupling phenomena.
  • the length total of the line is for example fixed according to the value of phase shift that we want to get.
  • FIG. 3C represents the second-last layer of substrate which has the central conductor of the triplate line. It includes a output 10 for the microwave signal and a metallized hole 8 allowing the passing the signal to the other levels.
  • Figure 3D represents the lower layer of the circuit according to the invention.
  • Magnetic solenoid turns winding around a side of the circuit thus formed.
  • the microwave signal is thus propagates in the volume of the circuit through the triplate line.
  • Figure 4 is a sectional view of a phase shifter according to the invention. This view shows the stack of the different ferrite layers (1 1 , 1 2 , ..1 i , ..), the metallized holes 8 allowing the connection between the different levels or layers, the central conductor 2 and the metallization 3.
  • the thickness of a ferrite layer is, for example, 0.15 mm in standard (process of coffritage).
  • a triplate line requires, for example 2 layers of ferrite making a thickness of 0.33 mm with the metallization.
  • On a 10mm by 10mm substrate you can wrap the line in several turns over a total length of 45mm. In S band, this length is at least an electrical length of 2 lengths wave.
  • a line of 2 ⁇ per layer of triplate We considers that it takes between 5 and 10 ⁇ , of total length to create a phase shift of 360 ° (1 ⁇ ), by variation of the magnetization.
  • We then obtain a multilayer ferrite circuit structure which contains 6 to 10 layers of ferrite, for a total thickness of 3.3 mm and a surface of 10mm by 10 mm.
  • the magnetization current to be passed through the solenoid is estimated at some 100 mA, for a time of the order of one ms (5 ⁇ s, ie 5.10 -6 s), by a phase switching.
  • Microwave losses are dependent in particular on the implemented technology, the thickness of the ferrite layers and the width of the central conductors and the quality of the magnetization.
  • the ferrite has been used to constitute the low frequency magnetization torus of the phase shifter.
  • FIG. 5 represents a variant embodiment where the device is an attenuator.
  • ferrite is used to perform another type of magnetization that could displace the resonance gyromagnetic near the frequency band and produce a controllable attenuation. It becomes possible to vary the losses of the circuit and perform the attenuator function.
  • the interest of such a structure consists in the fact that the same structure of lines microwaves arranged in the volume of the ferrite multilayer can be, according to the arrangement of the metal magnetization circuit, used as a phase shifter or as an attenuator.
  • the device of FIG. 5 comprises a line allowing the propagation of microwave waves inside the device, the line being distributed over the different layers of ferrite constituting the circuit attenuator / phase shifter as has been described in Figures 3A to 3D. he also includes a solenoid 5 wound around one side of the circuit allowing the control of phase shifter magnetization and a metallization 11 for example a magnetization command line for the function attenuator.
  • Such a structure has the following advantages in particular. In relatively small dimensions, it is possible to obtain the phase shifter and attenuator functions of an active module, with losses much lower than those of phase shifters or attenuators of technology MMIC. Another advantage of this solution lies in the relatively strong holding power of this structure, which is estimated at 10 W ridges.

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  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
EP20040106045 2003-11-28 2004-11-24 Anordnung zur Variation der Parameter einer elektromagnetischen Welle Expired - Lifetime EP1536509B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0314015 2003-11-28
FR0314015A FR2863108B1 (fr) 2003-11-28 2003-11-28 Dispositif permettant la variation des parametres d'une onde electromagnetique

Publications (2)

Publication Number Publication Date
EP1536509A1 true EP1536509A1 (de) 2005-06-01
EP1536509B1 EP1536509B1 (de) 2010-10-06

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Application Number Title Priority Date Filing Date
EP20040106045 Expired - Lifetime EP1536509B1 (de) 2003-11-28 2004-11-24 Anordnung zur Variation der Parameter einer elektromagnetischen Welle

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EP (1) EP1536509B1 (de)
DE (1) DE602004029433D1 (de)
FR (1) FR2863108B1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201442A (zh) * 2014-07-16 2014-12-10 电子科技大学 一种基于ltcc技术的微带线移相器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB895884A (en) * 1959-03-05 1962-05-09 Csf Improvements in ferrite phase-shifting devices
US3051917A (en) * 1960-06-22 1962-08-28 Bell Telephone Labor Inc Method of suppressing saturation effects in gyromagnetic devices
US3332042A (en) * 1964-09-14 1967-07-18 Ferrite device for effecting reciprocal phase shift or attenuation
US3478283A (en) * 1967-04-21 1969-11-11 Scientific Atlanta Reciprocal microwave phase shifter having two magnetizing conductors and one reset conductor
US5146191A (en) * 1990-06-13 1992-09-08 Murata Manufacturing Co., Ltd. Delay line device and a method for producing the same

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06334462A (ja) * 1993-03-26 1994-12-02 Uniden Corp 超広帯域定位相回路

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB895884A (en) * 1959-03-05 1962-05-09 Csf Improvements in ferrite phase-shifting devices
US3051917A (en) * 1960-06-22 1962-08-28 Bell Telephone Labor Inc Method of suppressing saturation effects in gyromagnetic devices
US3332042A (en) * 1964-09-14 1967-07-18 Ferrite device for effecting reciprocal phase shift or attenuation
US3478283A (en) * 1967-04-21 1969-11-11 Scientific Atlanta Reciprocal microwave phase shifter having two magnetizing conductors and one reset conductor
US5146191A (en) * 1990-06-13 1992-09-08 Murata Manufacturing Co., Ltd. Delay line device and a method for producing the same

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1995, no. 03 28 April 1995 (1995-04-28) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104201442A (zh) * 2014-07-16 2014-12-10 电子科技大学 一种基于ltcc技术的微带线移相器
CN104201442B (zh) * 2014-07-16 2016-08-17 电子科技大学 一种基于ltcc技术的微带线移相器

Also Published As

Publication number Publication date
FR2863108A1 (fr) 2005-06-03
FR2863108B1 (fr) 2006-02-17
DE602004029433D1 (de) 2010-11-18
EP1536509B1 (de) 2010-10-06

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