EP0751579B1 - Filtre hyperfréquence - Google Patents

Filtre hyperfréquence Download PDF

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Publication number
EP0751579B1
EP0751579B1 EP96106894A EP96106894A EP0751579B1 EP 0751579 B1 EP0751579 B1 EP 0751579B1 EP 96106894 A EP96106894 A EP 96106894A EP 96106894 A EP96106894 A EP 96106894A EP 0751579 B1 EP0751579 B1 EP 0751579B1
Authority
EP
European Patent Office
Prior art keywords
resonators
resonator
microwave filter
filter according
mode
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
EP96106894A
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German (de)
English (en)
Other versions
EP0751579A1 (fr
Inventor
Franz-Josef Dipl.-Ing. Goertz
Uwe Dipl.-Ing. Rosenberg
Dietmar Dr.-Ing. Schmitt
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.)
Tesat Spacecom GmbH and Co KG
Original Assignee
Tesat Spacecom GmbH and Co KG
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Filing date
Publication date
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Publication of EP0751579A1 publication Critical patent/EP0751579A1/fr
Application granted granted Critical
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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
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/207—Hollow waveguide filters
    • H01P1/208—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure
    • H01P1/2082—Cascaded cavities; Cascaded resonators inside a hollow waveguide structure with multimode resonators

Definitions

  • the invention relates to a microwave filter consisting of at least two resonators, a first of which Resonators at least two degenerate wave types are capable of resonance.
  • Such microwave filters are from IEEE MTT, Vol. 20, No. April 15, 1972, pages 258 to 265; IEEE MTT-32, No. 11 November 1984, pages 1449 to 1454 or from the US 36 97 898, US 45 13 264 or US 47 92 771 known.
  • Such filters are characterized in that in Resonators used several wave types at the same time become. In the aforementioned cases, they are degenerate Wave types coupled in each resonator, where this coupling according to the main signal path (Main coupling path) is carried out, that is, in one Wave types located in the resonator form electrically neighboring resonance circuits.
  • Main coupling path Main coupling path
  • Wave types and resonator shapes can also be different advantageous configurations that may result better selection properties by using can have different types of waves. For example you can use it to polarize the input and Optimally adapt output interface. In addition, the Adjustment effort of such a filter is reduced because Coupling device for coupling degenerate shaft types can do without the wave entpyen detune.
  • the microwave filter according to the invention leaves deal with previous resonators, the conventional one Have coupling mechanisms in a simple way to complex Combine filter structures.
  • the microwave filter after the Invention consists of at least two neighboring ones Resonators, two of which are in at least one resonator degenerate resonance wave types that are capable of resonance in the Main coupling path are electrically not immediately adjacent.
  • the microwave filter after the Invention can be made from cavity resonators, dielectric Resonators or coaxial resonators or possible Build combinations of them.
  • a three-circuit filter is to be described as the first exemplary embodiment.
  • This filter consists of two cylindrical resonators, which are arranged axially ( Figure 1).
  • R1 At the first resonator R1 is the coupling b rotated by 90 ° with respect to the coupling a.
  • two degenerate, decoupled wave types H 111 (dual mode) should be capable of resonance.
  • the frequency tuning elements c and d which are only symbolically indicated here, lie.
  • An aperture for magnetic coupling with openings e and f is located in the partition between the two resonators.
  • the openings e and f consist of radial slots which are perpendicular to one another and extend essentially from the outer wall of the cylinder towards the center.
  • the resonators R1 and R2 are accordingly in Active connection with each other that an energy transfer from the in the first resonator R1 resonant first degenerate Wave type to a second resonant there as well degenerate wave type outside of this first resonator R1 takes place and that the possible coupling this degenerate wave types only overcouplings are.
  • the second exemplary embodiment shows a four-circuit Cauer filter, consisting of two cavity resonators, which are used in dual-mode operation.
  • the two degenerate H 111 wave types (modes 1 and 3) should be capable of resonance and in the second resonator R2 the degenerate H 011 - (mode 2) and H 221 - (mode 4) wave types.
  • the peculiarity is that different types of waves are capable of resonance in the resonators, which are not coupled within the resonators.
  • the apertures for each corresponding coupling are like this positioned that unwanted couplings through orthogonal or equally large opposite field components of others Shaft types in the area of the corresponding coupling openings be suppressed.
  • modes 2 and 3 only orthogonal within the coupling opening k23 Field components for modes 1 and 4.
  • Modes 3 and 4 have k34 field components orthogonal in the coupling opening to mode 1 and equally large opposite or orthogonal field components to mode 2.
  • Figure 3 shows an embodiment of a four-circuit filter, which is constructed with three resonators.
  • the first resonator R1 is operated in dual mode (H 111 ) and the other two R2, R3 in single mode (H 211 ).
  • Magnetic couplings are implemented by means of diaphragms (k12, k23, k34).
  • the microwave filter according to the invention can with Waveguide resonators, dielectric resonators, Coaxial resonators or resonators using the Superconductivity can be built up or from combinations hereof.
  • the resonators can also capacitive couplings or combinations of magnetic and capacitive couplings can be used. It the main principle to be observed here is that the possible coupling of the degenerate shaft types are essentially overcouplings. Usually one will strive for coupling of the degenerate shaft types only overcouplings provide; that is, the degenerate wave types are not are coupled to one another via main couplings.

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Claims (10)

  1. Filtre à micro-ondes, se composant d'au minimum deux résonateurs (R1, R2, R3), à l'occasion de quoi, dans l'un de ces résonateurs (R1) placé en amont, au minimum deux types d'ondes dénaturées sont susceptibles de générer des résonances, caractérisé par le fait que les résonateurs (R1, R2, R3) sont couplés de telle manière qu'un transfert d'énergie d'un premier type d'ondes dénaturées susceptible de générer des résonances dans le premier résonateur (R1) à un autre type d'ondes dénaturées qui est également susceptible d'y générer des résonances s'effectue pour l'essentiel en dehors de ce premier résonateur (R1) et que les couplages possibles des types d'ondes dénaturées soient entre eux des surcouplages.
  2. Filtre à micro-ondes aux termes de la revendication 1, caractérisé par le fait que le premier résonateur (R1) fonctionne en bi-mode et que le résonateur (R2) qui lui est proche électriquement fonctionne en monomode.
  3. Filtre à micro-ondes aux termes de la revendication 1, caractérisé par le fait que le premier résonateur (R1) de même que l'autre résonateur (R2) qui lui est proche électriquement fonctionnent en bi-mode.
  4. Filtre à micro-ondes aux termes de la revendication 1, caractérisé par le fait que le premier résonateur (R1) fonctionne en triple-mode et que le résonateur (R2) qui lui est proche électriquement fonctionne en bi-mode.
  5. Filtre à micro-ondes aux termes de l'une quelconque des revendications 1 à 5, caractérisé par le fait qu'un autre résonateur (R3) fonctionnant en monomode est électriquement proche du premier résonateur (R1).
  6. Filtre à micro-ondes aux termes de l'une quelconque des revendications 1 à 5, caractérisé par le fait que les types d'ondes dénaturées dans les résonateurs (R1, R2, R3) ne sont pas couplés les uns aux autres par le biais de couplages principaux.
  7. Filtre à micro-ondes aux termes de l'une quelconque des revendications 1 à 6, caractérisé par le fait que le filtre à micro-ondes (R1, R2, R3) est combiné à d'autres résonateurs qui présentent des mécanismes de couplage conventionnels.
  8. Filtre à micro-ondes aux termes de l'une quelconque des revendications 1 à 7, caractérisé par le fait que le filtre à micro-ondes se compose de cavités résonantes, de résonateurs diélectriques, de résonateurs coaxiaux et/ou de résonateurs faisant appel à un supraconducteur.
  9. Filtre à micro-ondes aux termes de l'une quelconque des revendications 1 à 8, caractérisé par le fait que les résonateurs sont respectivement couplés magnétiquement par des diaphragmes intégrés à leurs parois.
  10. Filtre à micro-ondes aux termes de l'une quelconque des revendications 1 à 9, caractérisé par le fait que le couplage et le découplage du filtre à micro-ondes ne s'effectuent que sur l'un des résonateurs, à l'occasion de quoi ceux-ci sont décalés de 90° les uns par rapport aux autres.
EP96106894A 1995-06-27 1996-05-02 Filtre hyperfréquence Expired - Lifetime EP0751579B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19523220A DE19523220A1 (de) 1995-06-27 1995-06-27 Mikrowellenfilter
DE19523220 1995-06-27

Publications (2)

Publication Number Publication Date
EP0751579A1 EP0751579A1 (fr) 1997-01-02
EP0751579B1 true EP0751579B1 (fr) 2002-11-27

Family

ID=7765296

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96106894A Expired - Lifetime EP0751579B1 (fr) 1995-06-27 1996-05-02 Filtre hyperfréquence

Country Status (4)

Country Link
US (1) US6066996A (fr)
EP (1) EP0751579B1 (fr)
CA (1) CA2178702C (fr)
DE (2) DE19523220A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9325046B2 (en) 2012-10-25 2016-04-26 Mesaplexx Pty Ltd Multi-mode filter
US9614264B2 (en) 2013-12-19 2017-04-04 Mesaplexxpty Ltd Filter
US9843083B2 (en) 2012-10-09 2017-12-12 Mesaplexx Pty Ltd Multi-mode filter having a dielectric resonator mounted on a carrier and surrounded by a trench

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6459346B1 (en) * 2000-08-29 2002-10-01 Com Dev Limited Side-coupled microwave filter with circumferentially-spaced irises
DE10123318A1 (de) * 2001-05-14 2002-12-05 Marconi Comm Gmbh Mikrowellenfilter
US8665039B2 (en) * 2010-09-20 2014-03-04 Com Dev International Ltd. Dual mode cavity filter assembly operating in a TE22N mode
US9559398B2 (en) 2011-08-23 2017-01-31 Mesaplex Pty Ltd. Multi-mode filter
US9406988B2 (en) 2011-08-23 2016-08-02 Mesaplexx Pty Ltd Multi-mode filter
GB201303018D0 (en) * 2013-02-21 2013-04-03 Mesaplexx Pty Ltd Filter
GB201303016D0 (en) * 2013-02-21 2013-04-03 Mesaplexx Pty Ltd Filter
GB201303013D0 (en) * 2013-02-21 2013-04-03 Mesaplexx Pty Ltd Filter
GB201303024D0 (en) * 2013-02-21 2013-04-03 Mesaplexx Pty Ltd Filter
GB201303019D0 (en) * 2013-02-21 2013-04-03 Mesaplexx Pty Ltd Filter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795763A (en) * 1951-05-03 1957-06-11 Bell Telephone Labor Inc Microwave filters
JPS62204601A (ja) * 1986-03-04 1987-09-09 Murata Mfg Co Ltd 二重モ−ドフイルタ
DE3621298A1 (de) * 1986-06-25 1988-01-07 Ant Nachrichtentech Mikrowellenfilter mit vielfach gekoppelten hohlraumresonatoren
DE3621299A1 (de) * 1986-06-25 1988-01-07 Ant Nachrichtentech Mikrowellenfilter
US5083102A (en) * 1988-05-26 1992-01-21 University Of Maryland Dual mode dielectric resonator filters without iris
US5498171A (en) * 1994-07-05 1996-03-12 Ford Motor Company Connector locking and unlocking configuration

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9843083B2 (en) 2012-10-09 2017-12-12 Mesaplexx Pty Ltd Multi-mode filter having a dielectric resonator mounted on a carrier and surrounded by a trench
US9325046B2 (en) 2012-10-25 2016-04-26 Mesaplexx Pty Ltd Multi-mode filter
US9614264B2 (en) 2013-12-19 2017-04-04 Mesaplexxpty Ltd Filter

Also Published As

Publication number Publication date
CA2178702A1 (fr) 1996-12-28
EP0751579A1 (fr) 1997-01-02
CA2178702C (fr) 2000-07-18
DE59609902D1 (de) 2003-01-09
DE19523220A1 (de) 1997-01-02
US6066996A (en) 2000-05-23

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