EP0961340B1 - Procédé pour accorder la fréquence de résonance d'un résonateur diélectrique - Google Patents

Procédé pour accorder la fréquence de résonance d'un résonateur diélectrique Download PDF

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Publication number
EP0961340B1
EP0961340B1 EP99102651A EP99102651A EP0961340B1 EP 0961340 B1 EP0961340 B1 EP 0961340B1 EP 99102651 A EP99102651 A EP 99102651A EP 99102651 A EP99102651 A EP 99102651A EP 0961340 B1 EP0961340 B1 EP 0961340B1
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EP
European Patent Office
Prior art keywords
tuning
line
dielectric resonator
resonant frequency
coupled
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
EP99102651A
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German (de)
English (en)
Other versions
EP0961340A1 (fr
Inventor
Martin Schallner
Siegbert Martin
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.)
Telent GmbH
Original Assignee
Marconi Communications GmbH
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 Marconi Communications GmbH filed Critical Marconi Communications GmbH
Publication of EP0961340A1 publication Critical patent/EP0961340A1/fr
Application granted granted Critical
Publication of EP0961340B1 publication Critical patent/EP0961340B1/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
    • H01P7/00—Resonators of the waveguide type
    • H01P7/10—Dielectric resonators
    • 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
    • H01P1/201—Filters for transverse electromagnetic waves
    • H01P1/203—Strip line filters
    • H01P1/20309—Strip line filters with dielectric resonator

Definitions

  • the present invention relates to a method for Tuning the resonant frequency of a dielectric Resonator lying on a substrate next to a Stripline executed signal line is arranged, wherein with the dielectric resonator at least one of his Resonant frequency influencing, as stripline executed, at both ends idle tuning line is coupled.
  • Dielectric resonator For vibration generation with the help of an oscillator or the filtering of a narrow frequency range a resonator oscillating at the desired frequency needed. It is in order to get the best possible electrical To achieve properties of the oscillator or of the filter, the highest possible quality of the resonator required.
  • a high resonator quality have dielectric resonators.
  • One Dielectric resonator usually consists of one round disc of a dielectric material next to a planar signal line over which the to be filtered Signal is transmitted to the substrate of the planar Wire is glued on.
  • Such dielectric resonators are e.g.
  • a dielectric resonator usually has the Installation in a circuit due to material fluctuations and manufacturing tolerances are not the exact desired Resonance frequency. That's why there is a retrospective vote the resonant frequency of the dielectric resonator required. According to the document [1] this is done Vote on one in the lid of a dielectric Resonator receiving housing integrated tuning screw, with this tuning the distance between the Cover of the housing and the dielectric resonator is adjustable.
  • the disadvantage here is that both the Housing and the tuning screw thermally induced Expansions are subject to variations, which makes it a unwanted drift of the resonant frequency comes.
  • the invention is therefore based on the object Specify method of the type mentioned, after with As little effort as possible, a very precise vote Resonant frequency of a dielectric resonator is feasible.
  • At least a first tuning line for a coarse tuning of the resonant frequency closely with the coupled dielectric resonator and that at least a second voting line for a fine-tuning of the Resonant frequency at a greater distance than the first Tuning line coupled to the dielectric resonator becomes.
  • the cable length can be very fine dosed change, so that a very precise vote of the Resonance frequency is possible.
  • Another method to change the length of the tuning line is that at both ends of the tuning line several short ones Line pieces are strung together via bond connections and that for resonant frequency tuning the bond connections interrupted by one or more pipe sections.
  • FIG. 1 is the top view of a dielectric Resonator 1 shown, with a signal line. 2 is coupled to a particular via the signal line. 2 filter out the transmitted frequency range.
  • the dielectric Resonator 1 in the form of, for example, a round disc on the substrate (lying in the drawing plane) the Signal line 2 is arranged directly next to this.
  • Distance of the dielectric resonator 1 with respect to Signal line 2 is between two more or less strong coupling. It will be the frequency on the Signal line 2 filtered out, on which the dielectric Resonator 1 resonates. The resonance frequency of the dielectric resonator is thus on that frequency to vote, which is to be filtered out.
  • a dielectric spacer can be inserted between the dielectric resonator and the substrate.
  • Height of the spacer i. depending on the distance of the dielectric resonator with respect to the substrate between the dielectric resonator and the one on the Substrate extending coupling lines a more or less strong coupling.
  • the dielectric resonator. 1 In order to match the resonance frequency as exactly as possible to make is with the dielectric resonator. 1 one executed as a strip line, at both ends idle tuning line 3 coupled.
  • the voting line 3 is passed past the dielectric resonator 1, that an area of the tuning line 3 in which the line enters Minimum current has, the dielectric resonator 1 the next lies. Under these circumstances, the voting committee has 3 almost no influence on the resonance frequency of the dielectric resonator 1.
  • the tuning line 3rd shortened at their ends, the place of the shifts Minimum electricity and the voting line 3 starts like a dielectric resonator 1 in parallel admittance too act, which is the resonant frequency of the dielectric Resonator 1 shifts.
  • the two ends of the tuning line 3 in the form of several short strung over bond connections Line pieces 4 and 5 executed.
  • the line shortening takes place in that at the ends of the bond connections or several short line pieces 4 and 5 interrupted become.
  • a less expensive shortening of the tuning line 3 can be made with a laser, with any short Pieces of the pipe can be removed.
  • the Line shortening by means of a laser can therefore be a very fine tuning of the resonance frequency too.
  • the resonance frequency drops off very sharply, but then rises again and reaches at the Cable length ⁇ the same value as the cable length 2 ⁇ . With the method described so opened up very far tuning range.
  • a further enlargement of the tuning range can be realize that the coupling between the Tuning line 3 and the dielectric resonator. 1 is reinforced. This can be done as shown in FIG. 1 shows, thereby achieve that the tuning line 3 via a length that is less than half the wavelength on the Tuning 3 is in an arc around the dielectric Resonator 1, the round contour following, is performed.
  • Tuning lines 8 and 9 very close to the dielectric Resonator 1 coupled. Another tuning line 10 is because of their greater distance from the dielectric Resonator 1 significantly less coupled with him. With the tight coupled tuning lines 8 and 9 is a rough one Tuning of the resonant frequency feasible, and with the weakly coupled tuning line 10 can be a fine adjustment the resonance frequency are made.
  • FIG 4 shows an embodiment in which a close coupled voting line 11 for coarse voting and a weakly coupled tuning line 12 for fine tuning the resonant frequency are arranged one behind the other, so that the tightly coupled voting line 11 between the weak coupled tuning line 12 and the dielectric Resonator 1 is located.
  • the number, location and coupling strength of the tuning lines is not to those shown in Figures 1 to 4 Embodiments limited.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)

Claims (5)

  1. Procédé pour accorder la fréquence de résonance d'un résonateur diélectrique qui est agencé sur un substrat à côté d'une ligne à signaux réalisée sous la forme d'une ligne en ruban, dans lequel au moins une ligne d'accord, réalisée sous la forme de ligne en ruban et se terminant dans le vide aux deux extrémités, est couplée au résonateur diélectrique et influence sa fréquence de résonance, caractérisé en ce que la ligne d'accord (3, 6, ..., 12) est couplée au résonateur diélectrique (1) de telle façon que, dans une zone dans laquelle la ligne présente un minimum de courant, elle s'étend à côté du résonateur diélectrique (1), et en ce qu'à une extrémité ou aux deux extrémités de la ligne d'accord (3, 6, ..., 12) on enlève un ou plusieurs morceaux de ligne (4, 5) d'une longueur telle que la fréquence de résonance prend une valeur désirée.
  2. Procédé selon la revendication 1, caractérisé en ce que ladite au moins une ligne d'accord (3, 6, ..., 12), pour le couplage avec un résonateur diélectrique (1) rond, est menée sous forme d'un arc autour du résonateur (1), en suivant son contour arrondi, sur une longueur qui est inférieure à la moitié de la longueur d'onde sur la ligne d'accord.
  3. Procédé selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce qu'au moins une première ligne d'accord (8, 9, 11) pour un accord grossier de la fréquence de résonance est couplée de façon étroite avec le résonateur diélectrique (1), et en ce qu'au moins une seconde ligne d'accord (10, 12) pour un accord fin de la fréquence de résonance est couplée au résonateur diélectrique (1) à une distance supérieure à la première ligne d'accord.
  4. Procédé selon la revendication 1, caractérisé en ce que, pour l'accord de la fréquence de résonance, le ou les morceaux de ligne de ladite au moins une ligne d'accord (3, 6, ..., 12) est(sont) enlevé(s) au moyen d'un laser.
  5. Procédé selon la revendication 1, caractérisé en ce qu'aux deux extrémités de ladite au moins une ligne d'accord (3) plusieurs morceaux de ligne courts (4, 5) sont disposés en rangée les uns par rapport aux autres au moyen de liaisons de bonding, et en ce que pour l'accord de la fréquence de résonance, les liaisons de bonding d'un ou plusieurs morceaux de ligne (4, 5) sont rompues.
EP99102651A 1998-05-27 1999-02-12 Procédé pour accorder la fréquence de résonance d'un résonateur diélectrique Expired - Lifetime EP0961340B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19823656A DE19823656A1 (de) 1998-05-27 1998-05-27 Verfahren zum Abstimmen der Resonanzfrequenz eines dielektrischen Resonators
DE19823656 1998-05-27

Publications (2)

Publication Number Publication Date
EP0961340A1 EP0961340A1 (fr) 1999-12-01
EP0961340B1 true EP0961340B1 (fr) 2005-07-13

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EP99102651A Expired - Lifetime EP0961340B1 (fr) 1998-05-27 1999-02-12 Procédé pour accorder la fréquence de résonance d'un résonateur diélectrique

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EP (1) EP0961340B1 (fr)
DE (2) DE19823656A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005041346A1 (fr) * 2003-10-21 2005-05-06 Siemens Aktiengesellschaft Structure de raccordement pour resonateurs cylindriques
DE102004048274A1 (de) * 2004-10-04 2006-04-06 Siemens Ag Ankopplungsstruktur für zylinderförmige Resonatoren

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2616594B1 (fr) * 1987-06-09 1989-07-07 Thomson Csf Dispositif filtrant hyperfrequence accordable a resonateur dielectrique, et applications
JPH07122915A (ja) * 1993-10-21 1995-05-12 Fujitsu Ltd 誘電体共振器回路
US5457431A (en) * 1994-03-08 1995-10-10 Harris Corporation Electronic tuning circuit and method of manufacture

Also Published As

Publication number Publication date
DE19823656A1 (de) 1999-12-09
DE59912257D1 (de) 2005-08-18
EP0961340A1 (fr) 1999-12-01

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