EP0896381B1 - Composant à micro-ondes - Google Patents

Composant à micro-ondes Download PDF

Info

Publication number
EP0896381B1
EP0896381B1 EP98202626A EP98202626A EP0896381B1 EP 0896381 B1 EP0896381 B1 EP 0896381B1 EP 98202626 A EP98202626 A EP 98202626A EP 98202626 A EP98202626 A EP 98202626A EP 0896381 B1 EP0896381 B1 EP 0896381B1
Authority
EP
European Patent Office
Prior art keywords
microwave
magnetic
strip
microwave component
housing
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
Application number
EP98202626A
Other languages
German (de)
English (en)
Other versions
EP0896381A3 (fr
EP0896381A2 (fr
Inventor
Ralf Dr. Wendel
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.)
Philips Intellectual Property and Standards GmbH
Koninklijke Philips NV
Original Assignee
Philips Intellectual Property and Standards GmbH
Koninklijke Philips Electronics NV
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 Philips Intellectual Property and Standards GmbH, Koninklijke Philips Electronics NV filed Critical Philips Intellectual Property and Standards GmbH
Publication of EP0896381A2 publication Critical patent/EP0896381A2/fr
Publication of EP0896381A3 publication Critical patent/EP0896381A3/fr
Application granted granted Critical
Publication of EP0896381B1 publication Critical patent/EP0896381B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/32—Non-reciprocal transmission devices
    • H01P1/38—Circulators
    • H01P1/383—Junction circulators, e.g. Y-circulators
    • H01P1/387—Strip line circulators

Definitions

  • the invention relates to a microwave component with a microwave conductor arrangement for guiding electromagnetic waves and one gyromagnetic material that works in conjunction with the electromagnetic Waves arranged and with a magnetic field of predetermined field strength It can be acted upon by the gyromagnetic material, at least one magnet for Production of the magnetic field and a geometrically changeable magnetic tuning element with the purpose of adjusting the magnetic field strength changeable magnetic conductivity arranged in a magnetic circuit are, according to DE-A1-19707153.
  • the microwave component according to the main patent becomes the geometrically changeable magnetic tuning element preferably by an adjustable screw, an adjustable pin or a mechanically deformable tab formed by an air gap in its width can be changed, resulting in a changeable magnetic conductivity leads.
  • a magnetic tuning element designed in this way simplifies the Adjustment of the magnetic field strength in the microwave component of the beginning Art.
  • the invention has the task of a generic microwave component form the magnetic tuning element such that its Manageability also for different installation positions of the microwave component is guaranteed.
  • this object is achieved with a microwave component type mentioned solved in that the magnetic tuning element a slidably arranged, magnetically conductive tab includes and by Shift the tab of a geometric shape into the magnetic circle included area is changed, its magnetic conductivity is less than that of the tab.
  • Designated designation element generally sets out a magnetic conductive material formed part, which is slidable in a spatial area is arranged, which is part of the magnetic circuit and a low magnetic Has conductivity.
  • this construction element i.e. this Tab
  • a magnetically conductive sheet which is movable in an air gap is arranged in such a way that the shape, especially the width of this air gap is changed. It can be used with a easily controllable and finely controllable actuation a very accurate Adjust the magnetic field strength.
  • a tab is also constructive less expensive than, for example, an adjusting screw and more finely dosed operate as, for example, a tab to be bent.
  • the microwave component according to the invention preferably comprises a Microwave conductor arrangement, the gyromagnetic material and the magnet at least partially enclosing housing that at least partially magnetically conductive material and formed in the magnetic circuit is arranged, which is arranged with at least one of them in the magnetic circuit Areas forms at least part of the magnetic tuning element and on which the tab is slidably disposed.
  • the magnetic tuning element can arranged in particular adjacent to a bottom section of the housing be, wherein the bottom portion is the part of the housing via which a connection of the microwave component for the purpose of holding in a provided Recording element when installed in a device or the like as intended he follows.
  • This bottom section of the housing thus represents a mechanical and thermal connection to the device in which the microwave component is used.
  • a tab that slidably abuts this bottom section can also be easily and precisely adjusted when the bottom section even along its areal extension due to the described installation position is no longer accessible.
  • the formation of the magnetic tuning element according to the invention is advantageous suitable for a microwave component in which the microwave conductor arrangement at a certain spatial distance from the bottom section of the housing is arranged.
  • Such an arrangement of the microwave conductor arrangement will advantageously chosen when the microwave component other than the microwave conductor arrangement includes other structural elements, their arrangement or immediately adjacent to the bottom portion of the housing necessary is.
  • it can be thermally stressed Act construction elements such as load impedances. A Heat dissipation from such load impedances is only possible if the thermal is as good as possible Connection to the environment of the microwave component and thus preferably guaranteed to the bottom portion of the housing.
  • the two exemplary embodiments shown in the figures show one Microwave component, which forms a microwave circulator that passes through reflection-free termination of one of its three gates in its microwave conductor arrangement through an appropriately dimensioned load impedance for the Function of a microwave insulator can be formed.
  • This microwave device comprises a housing consisting essentially of a trough-shaped housing part 1 and a cover part 2. That essentially trough-shaped housing part 1 comprises a bottom section 3 of at least largely square in circumference as well as four Floor section 3 adjoining wall sections 4, 5, 6, 7. A first of these Wall sections with the reference numeral 4 forms that in the front view (View Y) visible wall of the housing part 1.
  • a second of the wall sections with the reference numeral 5 forms the part of the visible in the rear view (view X) Housing part 1
  • a third wall section with the reference numeral 6 forms the in the left side view (view Z) visible part of the housing part 1
  • the fourth Wall section 7 forms the side view from the right - the view Z opposite - visible part of the housing part 1.
  • the housing part 1 with Bottom section 3 and wall sections 4 to 7 is preferably in one piece Chipless machining from an essentially plate-shaped, magnetic conductive material formed, for example from a magnetically conductive sheet punched and folded.
  • the cover part 2 is also produced in a corresponding manner.
  • the wall sections 4 to 7 are essentially rectangular. On they have their edges facing away from the circumference of the bottom section 3 cone-like projections, which when assembling the housing part 1 with the Cover part 2 in corresponding recesses in the cover part 2 form-fitting intervention. These pin-like projections on the wall sections 4 to 7 are with the reference number 8, the recesses in the cover part 2 with the reference number 9 designated. Housing part 1 and cover part 2 can be glued, welded, Solder or bend or pivot the peg-like projections 8 be connected to each other. In addition, each other is the same in the result Acting connection type of housing part 1 and cover part 2 possible.
  • the wall sections 4 to 7 are not substantially to the corners of the square circumference of the bottom section 3, but in the area of this Cut corners. In these corners there are 3 openings in the bottom section provided as screw holes for attaching the microwave component in serve a device or the like in which the microwave component is used place.
  • These breakthroughs in the illustrated embodiments with the Reference numerals 10 are, for example, of circular circumference; she can however also as slot-shaped recesses in the circumference of the bottom section or be formed in a contour with a comparable effect.
  • the housing 1, 2 in the configuration described above forms part of a magnetic circuit, in the following a number essentially disk-shaped components is included, the stacked between Bottom section 3 and cover part 2 are arranged.
  • a number essentially disk-shaped components is included, the stacked between Bottom section 3 and cover part 2 are arranged.
  • the ferrite disks 11, 13 form the stacking together with the inner conductor 12 Microwave conductor arrangement to which the cover part 2 and the intermediate element 14 which form symmetrically spaced outer conductors in this example.
  • Intermediate element 14 is electrically conductive.
  • the intermediate element 14 is also formed from a magnetically conductive material and thereby forms at the same time a pole disc for the distribution and homogenization of the Permanent magnet 15 applied magnetic field, which the microwave conductor arrangement 11, 12, 13 perpendicular to the planar extent of the inner conductor 12 interspersed.
  • the intermediate element 14 is positively between the Wall sections 4 to 7 inserted.
  • the intermediate element 14 is included Recesses along its edges adjacent to wall sections 4 to 7 provided so that the intermediate element 14 only on the wall sections supported via narrow webs 19. Otherwise, the intermediate element is 14 preferably also formed without cutting from a magnetically conductive sheet.
  • the illustrated embodiments also a multi-part intermediate element from a electrically conductive, film-like part as an outer conductor for the microwave conductor arrangement 11, 12, 13 and an arrangement of magnetically conductive Pole disks are used.
  • the tab 18 in the illustrated embodiment consists of a flat, magnetically conductive sheet and lies flat against the bottom section 3.
  • the tab 18 forms with the air gap 17 an arranged in the magnetic circuit, Geometrically changeable magnetic tuning element.
  • the Adjustment properties are influenced by the magnetic tuning element.
  • first and second wall sections 4, 5 are further along the Border along which these wall sections 4, 5 extend to the circumference of the Connect bottom section 3, recesses 21 and 22 provided through even when a microwave component is installed in a device, for example a shift of the tab 18 and thus a comparison made easily can be.
  • a separate mechanical attachment of the tab 18 on Bottom section 3 is not shown and can also be omitted because both elements can be held in their position relative to one another by magnetic attraction. About that however, the position of the tab 18 can also be secured by adhesive or security lacquer or the like. be made.
  • the inner conductor 12 points to the formation of the three gates of the microwave component three connecting conductors 23, 24, 25. These are arranged accordingly Recesses 26, 27, 28 in the first, third and fourth wall sections 4, 6 and 7 respectively led out of the housing 1, 2 of the microwave component, whereby a electrical insulation of the inner conductor 12 against the housing 1, 2 is ensured.
  • Support elements 29, 30 are electrically conductive, however magnetically non-conductive and preferably made of aluminum shaped. They define the spatial position of the intermediate element 14 opposite the bottom section 3, i.e. they set the distance between these two elements fixed to each other.
  • This Room area also contains the permanent magnet 15 and the Thermoflux disc 16 and the magnetic tuning element with the tab 18 and the air gap 17 that can be influenced by it described space area to a partial section of the floor section 3 Adjacent subspace 31 is left out of the listed components. This Partial space 31 is indicated by the dashed line drawn in bold.
  • Subspace 31 which is in the immediate vicinity of the floor section 3 and thus good electrical and, above all, thermal contact with the Bottom section 3, the load impedance mentioned can preferably be arranged through which one of the connecting conductors of the inner conductor 12, preferably the first Lead 23, can be completed without reflection.
  • the existing one Subspace 31 enables a load impedance arrangement, which for a Comparison to the dimensions of the housing 1, 2 of the microwave component high power loss can be designed.
  • This can be a microwave isolator build high performance class with very compact dimensions.
  • This large load impedance can be within the Housing 1, 2 are arranged without the dimensions of the bottom portion 3 increase.
  • the arrangement of the load impedance adjacent to the bottom section 3 also ensures thermal decoupling from the microwave conductor arrangement 11 to 13.
  • the housing part 1 Tab 18 For the assembly of the described embodiments of the microwave component according to the invention is first in the housing part 1 Tab 18 inserted. Then the support elements 29, 30 in the Housing part 1 introduced. In the between the support members 29, 30 and Floor section 3 or the tab 18 lying area is then the Thermoflux disc 16 and the permanent magnet 15 arranged and it becomes this Space area covered by the intermediate element 14. To ensure the Air gap 17 must be the height of the support elements 29, 30 in the viewing direction View W may be greater than the sum of the heights of tab 18, the Thermoflux disc 16 and the permanent magnet 15. Instead of for reasons The simplicity shown single thermoflux disc 16 can be used in practice an arrangement of several Thermoflux disks can also be used.
  • the permanent magnet 15 and the are advantageous in a pre-assembly Thermoflux disc 16 on the intermediate element 14, for example by gluing attached and the pre-assembled assembly 14, 15, 16 with the Permanent magnets 15 in the direction of the bottom section 3 on the support elements 29, 30 put on.
  • the microwave conductor arrangement is placed on the intermediate element 14 layered from the ferrite disks 11, 13 and the inner conductor 12 and by applying the cover part 2 and fixing it to the housing part 1 fixed.
  • the assembly of the entire microwave component can be stacked in one Complete assembly jig, which has, for example, three pins for assembly by corresponding recesses, not shown in the exemplary embodiments in the bottom section 3 and the location of the individual, disc-shaped Define components 11 to 16, 18. After attaching the lid part 2 that Microwave device subtracted from these pins.
  • the permanent magnet 15 is installed in the fully magnetized state.
  • the required magnetic field for the operation of the microwave component is with the slidable tab adjusted.
  • For mechanical access to this Tab 18 can also use the recess 20 in the bottom section 3 as long as these - due to the installation position of the microwave component - is accessible.
  • the exemplary embodiments shown in the figures differ in terms of the formation of the subspace 31 by the shape chosen for the Permanent magnets 15. While in the first embodiment shown in FIGS. 1 to 7 the disc-shaped permanent magnet has a radial extension, which in essentially coincides with that of the ferrite disks 11, 13 is in the second 1, 2, 8 to 12, a permanent magnet with lower radial dimensions used. To reach a comparable volume for the Coming permanent magnet 15 is the thickness of the disc-shaped Permanent magnets 15 selected larger in the second embodiment than in the first Embodiment. Correspondingly, subspace 31 extends in the first Embodiment to a significant extent in the space between the permanent magnet 15 and the tab 18, i.e. in the air gap 17.
  • the subspace 31 in the second exemplary embodiment compares this with FIG much larger proportion of a space between the floor section 3 and the intermediate element 14, which is laterally through the first wall section 4th on the one hand and by the permanent magnet 15 and the tab 18 on the other is narrowed down.
  • By reducing the radial dimension of the Permanent magnet 15 in the second embodiment is also one Enlargement of the subspace 31 to accommodate a load impedance compared to the first embodiment possible.

Landscapes

  • Non-Reversible Transmitting Devices (AREA)

Claims (7)

  1. Composant à micro-ondes avec un dispositif conducteur de micro-ondes pour la conduction d'ondes électromagnétiques et un matériau gyromagnétique qui est disposé en liaison active avec les ondes électromagnétiques et peut être alimenté avec un champ magnétique d'intensité de champ à déterminer préalablement par le fait que le matériau gyromagnétique, du moins un aimant (15) pour la production du champ magnétique et un élément d'accord magnétique géométriquement variable (18) avec une conductibilité magnétique variable en vue de l'égalisation de l'intensité de champ magnétique sont disposés dans un circuit magnétique, caractérisé en ce que l'élément d'accord magnétique comprend un collier de fixation (18) conducteur magnétiquement et disposé à coulissement et, par coulissement du collier de fixation, la forme géométrique d'un espace compris dans le circuit magnétique est modifiée, sa conductibilité magnétique étant inférieure à celle du collier de fixation.
  2. Composant à micro-ondes selon la revendication 1, caractérisé par un boítier renfermant, du moins en partie, le dispositif de conducteur de micro-ondes, le matériau gyromagnétique et l'aimant, qui est conçu du moins par zone d'un matériau conducteur magnétiquement et disposé dans le circuit magnétique qui forme du moins avec une de ces zones disposées dans le circuit magnétique au moins une partie de l'élément d'accord magnétique et sur lequel est disposé à coulissement le collier de fixation.
  3. Composant à micro-ondes selon la revendication 2, caractérisé en ce que le boítier comprend une pièce de boítier (1) essentiellement en forme de cuvette qui présente une face de fond (3) qui comprend la zone du boítier qui forme au moins une partie de l'élément d'accord magnétique et sur laquelle le collier de fixation est logé à coulissement.
  4. Composant à micro-ondes selon l'une des revendications 1, 2 ou 3, caractérisé en ce qu'un entrefer de largeur variable est formé par le collier de fixation.
  5. Composant à micro-ondes selon l'une des revendications 2, 3 ou 4, caractérisé en ce que la zone du boítier sur laquelle le collier de fixation est logé à coulissement présente une cavité en forme de fente s'étendant essentiellement dans le sens de coulissement du collier de fixation et recouvrable, du moins en partie, par le collier de fixation.
  6. Circulateur à micro-ondes caractérisé par un composant à micro-ondes selon l'une des revendications 1 à 5.
  7. Isolateur à micro-ondes, caractérisé par un composant à micro-ondes selon l'une des revendications 1 à 5.
EP98202626A 1997-08-07 1998-08-04 Composant à micro-ondes Expired - Lifetime EP0896381B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19734098 1997-08-07
DE19734098A DE19734098A1 (de) 1997-08-07 1997-08-07 Mikrowellen-Bauelement

Publications (3)

Publication Number Publication Date
EP0896381A2 EP0896381A2 (fr) 1999-02-10
EP0896381A3 EP0896381A3 (fr) 2001-04-11
EP0896381B1 true EP0896381B1 (fr) 2003-07-30

Family

ID=7838190

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98202626A Expired - Lifetime EP0896381B1 (fr) 1997-08-07 1998-08-04 Composant à micro-ondes

Country Status (5)

Country Link
US (1) US6097261A (fr)
EP (1) EP0896381B1 (fr)
JP (1) JP4067656B2 (fr)
CN (1) CN1123084C (fr)
DE (2) DE19734098A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007015544B4 (de) 2007-03-30 2011-01-27 Siemens Ag Zirkulator, Zirkulator-Betriebsverfahren, Magnetresonanzantenneneinrichtung mit einem solchen Zirkulator und Magnetresonanzgerät mit einer derartigen Mangnetresonanzantenneneinrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651430A (en) * 1964-10-06 1972-03-21 Fujitsu Ltd Strip-line circulator having movable compensating stub strip overlying central strip-line conductors
JPS5046469A (fr) * 1973-08-30 1975-04-25
US3935549A (en) * 1974-08-12 1976-01-27 Decibel Products, Inc. Ferrite circulator
US4675621A (en) * 1985-11-12 1987-06-23 Decibel Products, Inc. Temperature compensated circulator

Also Published As

Publication number Publication date
US6097261A (en) 2000-08-01
DE59809140D1 (de) 2003-09-04
DE19734098A1 (de) 1999-02-11
CN1208260A (zh) 1999-02-17
JP4067656B2 (ja) 2008-03-26
JPH11122008A (ja) 1999-04-30
EP0896381A3 (fr) 2001-04-11
CN1123084C (zh) 2003-10-01
EP0896381A2 (fr) 1999-02-10

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