EP1825559B1 - Filtre haute frequence et procede pour accorder un filtre haute frequence - Google Patents

Filtre haute frequence et procede pour accorder un filtre haute frequence Download PDF

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Publication number
EP1825559B1
EP1825559B1 EP05801877A EP05801877A EP1825559B1 EP 1825559 B1 EP1825559 B1 EP 1825559B1 EP 05801877 A EP05801877 A EP 05801877A EP 05801877 A EP05801877 A EP 05801877A EP 1825559 B1 EP1825559 B1 EP 1825559B1
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EP
European Patent Office
Prior art keywords
inner conductor
conductor tube
frequency filter
filter according
housing
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Not-in-force
Application number
EP05801877A
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German (de)
English (en)
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EP1825559A1 (fr
Inventor
Ingo Mayr
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Kathrein Mobilcom Austria GmbH
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Kathrein Austria GmbH
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Publication of EP1825559A1 publication Critical patent/EP1825559A1/fr
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/04—Coaxial resonators

Definitions

  • the invention relates to a high-frequency filter in coaxial design according to the preamble of claim 1.
  • a common antenna is often used for transmit and receive signals.
  • the transmit or receive signals each use different frequency ranges, and the antenna must be suitable for transmitting and receiving in both frequency ranges.
  • a suitable frequency filtering is required, with the one hand, the transmission signals from the transmitter to the antenna and on the other hand, the received signals are forwarded from the antenna to the receiver.
  • inter alia high-frequency filters in coaxial design are used today.
  • High-frequency filters in coaxial design include coaxial resonators in which resonator cavities are formed in an outer conductor housing, in which inner conductor in the Form of inner conductor tubes are arranged.
  • the inner conductor tubes each have a free end which is adjacent to a lid which is arranged on the upper side of the housing.
  • a capacitance is formed between the cover and the inner conductor tube (so-called head capacitance).
  • This capacity is also frequency determining. If there is an increase in temperature, the inner conductor tube and the walls of the outer conductor housing expand by the same factor. Since the walls of the outer conductor housing are higher than the inner conductor tube, there is an increase in the distance between the inner conductor tube and cover, resulting in a decrease in the head capacity and leads to an increase in the resonance frequency. This effect thus counteracts the reduction of the resonance frequency due to the greater mechanical length of the inner conductor tube with temperature increases. The effect is very small and does not matter.
  • a high frequency coaxial resonator is also out of the US Pat. No. 6,320,483 B1 known.
  • a prior art resonator which includes an inner conductor, an outer conductor, and a lid. It is also described that the width of the coaxial resonator can be reduced, but only with problems. Due to the reduction in the thickness of the construction, however, it is necessary to support the inner conductor by an additional support element. It is a parallel to the ceiling or floor plate extending rod-shaped support structure having an annular portion in the middle, which is penetrated by the inner conductor. The horizontally protruding support arms abut against the inside of the coaxial resonator.
  • a high-frequency resonator in general is among other things from the US 5,329,687 A. known.
  • This high-frequency coaxial resonator comprises an outer conductor housing with an inner conductor tube axially arranged thereon, which is preferably connected in one piece with the outer conductor housing.
  • the inner conductor tube ends at a distance below a lid closing the outer conductor housing.
  • the inner conductor tube is provided with a longitudinal bore passing through the inner conductor tube into which a screw can be screwed from below.
  • the screw can be screwed into a counterpart, which has a circumferential edge at a distance from the free end of the inner conductor tube, so that a bellows-shaped element can be inserted between this peripheral edge of the counterpart and the free end edge of the inner conductor tube.
  • the screw has a coefficient of thermal expansion which is less than the thermal expansion coefficient of the existing example of aluminum inner conductor tube.
  • the bellows-shaped compensation element further consists of a different material compared to the material of the screw and the inner conductor tube.
  • this embodiment also has various disadvantages, since additional elements are necessary, the bellows-shaped element has to be welded to the circumferential end wall of the inner conductor tube, etc. Intermodulation problems may also be caused thereby.
  • the object of the invention is in contrast to provide a high-frequency filter in coaxial design, which is easier to manufacture than known from the prior art filter and its high-frequency properties can be changed in a simple manner.
  • the high-frequency filter according to the invention is characterized inter alia by the fact that it is mechanically connected to at least a portion of the inner conductor tube, that acts more or less directly on the inner conductor tube. Therefore, there is no need for any additional compensation element, which is quasi compressed or shortened at a temperature-induced extension of the inner conductor tube, as in the generic state of the art according to the US Pat. No. 6,407,651 B1 is provided.
  • the inner conductor tube consists of at least a first material and the compensation element of at least one second material.
  • the term inner conductor tube is to be understood in this case and includes any type of pile-shaped elements with inner cavity.
  • the inner conductor tube can assume any shape in cross section, for example a square, hexagonal or a cylindrical shape and the like.
  • the materials are connected in such a way that the at least one second material acts mechanically on the at least one first material of at least one subsection of the inner conductor tube in such a way that the temperature expansion
  • the inner conductor tube consists of a material which has a larger coefficient of thermal expansion than the material of the compensation element.
  • the length of the inner conductor tube can be influenced by mechanical force exerted by the compensation element on the inner conductor tube.
  • the high-frequency filter according to the invention may preferably be waived to manufacture the inner conductor tube separately from a different material than the housing.
  • the production of the filter is facilitated because no mechanical tolerances occur when assembling different materials and no special tools are needed for installation. Furthermore, intermodulation problems are avoided since there are no defects at junctions between different materials. In addition, the mechanical force of the second material on the first material can be easily influenced so that the filter is much faster and easier to optimize.
  • the compensation element is in the region of the free end of the inner conductor tube and / or substantially disposed within the inner conductor tube, that is preferably below the free end of the inner conductor tube, so that the material of the compensation element itself does not directly affect the head capacitance substantially. Furthermore, the compensation element can be releasably connected to the inner conductor tube, so that depending on the purpose of the compensation element can be exchanged for another.
  • the compensation element exerts a force directed substantially at the housing bottom on the at least one section of the inner conductor tube, thereby easily affecting the temperature expansion of the first material and a reduction in the length of the inner conductor tube by the downward force can be.
  • the at least one section of the inner conductor tube is a section with a smaller thickness of the inner conductor tube. The first material of the inner conductor tube thus sets less force against the second material of the compensation element, so that a temperature compensation effected with the compensation element is intensified.
  • the at least one second material of the compensation element is a material with a higher tensile strength than the at least one first material of the inner conductor tube.
  • the tensile strength of the at least one second material is at least 100%, preferably at least 150%, more preferably at least 200% greater than the tensile strength of the at least one first material.
  • the thermal expansion coefficient of the first Material be greater than that of the second material, in particular by at least 50%, preferably at least 100%, more preferably at least 130%.
  • the inner conductor tube may for example be made of aluminum and the compensation element may be made of steel and / or ceramic.
  • the compensation element is substantially not only accommodated in the interior of the inner conductor tube, but also mechanically connected to an inner surface section of the inner conductor tube.
  • the inner surface portion may in this case lie at the lower end, in the central region or at the upper end of the inner conductor tube.
  • the size of the sub-section can be changed, which acts on the second material of the compensation element.
  • the housing bottom of the outer conductor housing is provided on its underside with an opening to the interior of the inner conductor tube, via which the compensation element is accessible in a simple manner.
  • the force with which the at least one second material of the compensation element acts on the at least one first material of the inner conductor tube can be changed.
  • a compensation element which is formed by a screw positioned in the interior of the inner conductor tube, which is formed in at least one inside the inner conductor tube Threaded section is screwed.
  • the at least one threaded section can be positioned arbitrarily in the interior of the inner conductor tube, in particular it can be in the lower part, in the middle part or in the upper part of the inner conductor tube, whereby the strength of the compensation is influenced.
  • a screwing tool for rotating the screw can be positioned at one end of the screw, wherein this end is arranged at the opening at the bottom of the housing bottom.
  • the tensile force of the screw can be influenced on the inner conductor tube from the outside in a simple manner and the filter can be tuned.
  • the screw has an inner cavity.
  • at least one arranged on or adjacent to the free end of the inner conductor tube tuning element comprising metallic and / or dielectric material is further provided.
  • the tuning element may, for example, be arranged in a cover positioned on the housing upper side of the outer conductor housing, but it is also possible that the tuning element is at least partially positioned in the inner conductor tube.
  • the tuning element is preferably at least partially received in the inner cavity of the screw, wherein the inner cavity for this purpose in particular has a female threaded portion at its lying adjacent to the free end of the inner conductor tube end for screwing the tuning element.
  • the outer conductor housing is preferably formed integrally with the inner conductor tube, for example as a milling or casting, so that no intermodulation problems Butt joints in the filter occur.
  • the filter according to the invention can be designed, for example, as a duplexer, bandpass filter or band-stop filter.
  • the high-frequency filter according to the invention can also be optimally manufactured.
  • an outer conductor housing is produced with a housing bottom and a housing wall, wherein at least one inner conductor tube made of at least one first material is formed or arranged in the interior of the outer conductor housing.
  • at least one compensation element of at least one second material is connected to the inner conductor tube and finally the tuning of the high-frequency electrical characteristics of the filter takes place in that the mechanical force that exerts the at least one second material of the compensation element on the at least one first material of the inner conductor tube accordingly is set.
  • the at least one inner conductor tube is preferably formed integrally with the outer conductor housing, whereby the manufacture of the filter is greatly simplified.
  • FIG. 1 shows in sectional side view a resonator which is used in a first embodiment of the high-frequency filter according to the invention.
  • the high frequency filter itself may consist of a plurality of such resonators.
  • the resonator of FIG. 1 comprises an outer conductor housing 1 with a housing bottom 1a, from which a circumferential housing wall 1b extends. Coupling openings may be provided in the housing wall for electrical coupling to adjacent resonators, and the housings of all the resonators may be formed integrally from a material.
  • the housing bottom 1a is integrally formed an inner conductor in the form of a cylindrical inner conductor tube 2, wherein the inner conductor tube is arranged centrally within the cavity formed by the housing wall 1b.
  • a cover 3 is screwed by means of a plurality of screws 4. It is also conceivable that the lid is not attached to the upper side of the housing, but that the lid comprises at its edge an upper part of the housing wall, which is connected to a lower part of the housing wall in a region between the housing upper side and the housing bottom. Possibly.
  • the cover may also comprise the entire housing wall and be connected to the outer conductor housing on the housing bottom.
  • a tuning element 5 which comprises a press-fit bushing 5a, which is pressed into the lid 3 and has an upper portion 501 above the lid and a lower portion 502 below the lid.
  • an internal thread is provided, into which a tuning tip 5b is screwed, which protrudes from the lower end of the press-fit 5a.
  • the tuning tip has at its upper, located in the Einpressbuchse end a hexagonal socket (not shown), so that with a corresponding hex wrench, the distance of the tuning tip to the upper, free end 2a of the inner conductor tube 2 can be changed. This change in distance in turn has an influence on the capacitance between the inner conductor tube and cover, which can influence the resonant frequency of the resonator and thus tune the high-frequency filter.
  • the press-in bushing and the tuning tip can both be made of brass, for example.
  • a compensation device 6 In the interior of the inner conductor tube, a compensation device 6 is provided, which is also referred to below as a compensation element 6. It comprises a compensation screw 6 ', which is also referred to below as a screw 6', which comprises an outer thread 6a indicated by a thickened edge and a screw head 6b.
  • the screw 6 ' was passed through an opening 1c in the bottom of the housing 1 via the bottom of the Bottom used in the inner conductor tube 2 and bolted to the inner conductor tube 2 at the free end 2a.
  • the inner conductor tube has for this purpose at the end 2a to a thickened portion on which an internal thread 2b is provided, which is indicated by thick lines drawn.
  • the internal thread 2b and the external thread 6a fit into one another, so that the screw 6 'can be screwed into the inner conductor tube 2.
  • one or more slots or a hexagon socket are provided on the screw head 6b to introduce a screwing tool for rotating the compensation screw.
  • the length of the screw 6 ' is selected such that only a small front portion 6c of the external thread 6a engages in the lower end of the internal thread 2b.
  • the screw head 6b is supported offset from the internal thread 2b on the inner conductor tube 2 and / or in or on the housing bottom 1a. However, it is also possible that the screw is made longer and is further screwed into the internal thread 2b.
  • the screw 6 ' is hollow on the inside and comprises a lower, small diameter cylindrical cavity 6d extending upwardly from the screw head 6b, followed by a larger diameter cavity 6e extending to the upper tip 6c of the screw 6' , In the upper cavity 6e, an internal thread 6f (indicated by a thicker black line) is provided, into which a further tuning element can be screwed, as will be described in more detail below.
  • the screw 6 ' is preferably made of a different material, for example of a different metal or a ceramic, as the outer conductor housing 1 and the inner conductor tube integrally formed in this housing. It is used for the screw 6 'is preferably a material having a higher tensile strength and a lower coefficient of thermal expansion than the inner conductor tube.
  • the tensile strength of the material of the screw is at least 100%, preferably at least 150%, and more preferably at least 200% greater than the tensile strength of the material of the inner conductor tube.
  • the coefficient of thermal expansion of the inner conductor tube is preferably greater than the thermal expansion coefficient of the screw by at least 50%, in particular by at least 100% and particularly preferably by at least 130%.
  • the screw 6 whereas the inner conductor tube 2 is made of aluminum.
  • the material for the inner conductor tube for example, aluminum of the type EN AW-5083 is suitable, which has a yield strength R p0.2 of at least 105 N / mm 2 and a tensile strength R m of at least 255 N / mm 2 .
  • the coefficient of thermal expansion of this material is 24.2 ⁇ 10 -6 / K.
  • type X17CrNi 16-2 stainless steel can be used as a material for the screw. This stainless steel has a yield strength R p0.2 of at least 600 N / mm 2 and a tensile strength R m of at least 800 N / mm 2 .
  • the coefficient of thermal expansion of this material is 10.0 x 10 -6 / K.
  • a clamping length of 48 mm and a temperature difference of 40 ° C. there is a difference in the length expansion of 0.027 mm.
  • the screw 6 ' is screwed into the upper thread 2b of the inner conductor tube with a torque, so that a tensile force is exerted on the inner conductor tube in the direction of the housing bottom, which is so large that the Coefficient of thermal expansion of the material of the screw is "imposed” on the coefficient of thermal expansion of the material of the inner conductor tube.
  • a thermal expansion of the material of the inner conductor tube, which exceeds the thermal expansion of the screw is thus prevented by the compensation screw 6 '*, since the inner conductor with increasing temperature in the elastic region due to the tensile force of the screw "short" is.
  • the resonance frequency is reduced due to the increase in the mechanical length of the inner conductor tube with temperature increases.
  • This effect is reflected in the FIG. 1 shown embodiment counteracted by the fact that the temperature expansion is reduced by the lower coefficient of thermal expansion of the screw and at the same time the distance between the lid 3 and free end 2a of the inner conductor tube is increased, resulting in a decrease in the capacity between the lid and inner conductor tube.
  • This causes a reduction of the resonance frequency, so that the in FIG. 1 Filter shown compensated for temperature-dependent fluctuations in the resonant frequency in a simple manner.
  • a simple tuning of the filter by changing the tension of the screw, ie by turning the screw 6 'in the internal thread 2b, allows.
  • the resonant frequency can be suitably adjusted.
  • the strength of the compensation can be found in the filter FIG. 1 also by it be influenced that the wall thickness of the inner conductor tube is changed. The thinner the inner conductor tube is, the smaller the force of the inner conductor tube, which counteracts the tensile force of the screw at thermal expansions. Consequently, the compensation for thin inner conductor tubes is stronger than for thick inner conductor tubes.
  • FIG. 1A shows a detail view of in FIG. 1 It can be seen in detail the thickened portion of the inner conductor tube 2 at the free end 2a, said thickened portion at the upper end has a cylindrical circumferential shoulder 2c, whereby an opening 2d is formed, in which engages the tuning tip 5b. It can also be seen in detail once again that only the foremost tip 6c of the screw 6 'engages in the internal thread 2b of the inner conductor tube 2.
  • FIG. 2 shows a sectional side view of a resonator of a second embodiment of the high-frequency filter according to the invention.
  • the resonator of FIG. 2 corresponds in its structure largely to the resonator of FIG. 1 , The only difference is that instead of the tuning element 5 in the cover 3 a tuning element 5 'is used, which is screwed into the internal thread 6f of the compensation screw 6'.
  • the tuning element 5 ' comprises a bushing 5b' which has at its lower end two male threaded portions 5c 'separated by two notches 5d' (indicated by thickened lines). In the area of the cuts 5d ', the bush 5b' is slightly compressed.
  • the tuning element does not change its position in the screw during vibration.
  • the actual tuning part 5a' which in the embodiment of the FIG. 2 consists of dielectric and preferably ceramic material and is in the socket 5b 'is pressed.
  • the tuning part extends upwardly from the socket 5b 'through the upper opening in the free end 2a of the inner conductor tube 2 and also affects the resonant frequency of the resonator.
  • the tuning can be effected by changing the position of the tuning element 5 'in the internal thread 6f of the screw 6'.
  • FIG. 3 shows a sectional side view of a resonator in a third embodiment of the high-frequency filter according to the invention.
  • the construction of the filter FIG. 3 is similar to the filter of FIG. 1 , In particular, the same, located in the cover 3 tuning element 5 is used. Also, the compensation screw 6 'of FIG. 3 corresponds to the compensation screw 6 'of FIG. 1 ,
  • the main difference of the filter FIG. 3 to FIG. 1 is that the thickened portion of the inner conductor tube with the internal thread 2b is no longer located at the upper, free end 2a of the inner conductor tube 2, but in the central region of the inner conductor tube.
  • FIG. 3A A detailed view of the section Y, which shows the thickened portion in the central region of the inner conductor tube 2, is hereby made FIG. 3A seen.
  • the compensation device 6 is screwed in the form of a screw 6 'with the external thread 6a in the internal thread 2b such that the thermal expansion coefficient of the screw Inner conductor tube is imposed.
  • the compensation of the thermal expansion caused thereby does not affect the entire length of the inner conductor tube, but only on the lower portion of the inner conductor tube extending from the thickened portion of the inner thread 2b to the top of the housing bottom 1a.
  • the inner conductor tube 2 expands according to its own coefficient of thermal expansion.
  • the coefficient of thermal expansion of the material of the inner conductor tube is preferably greater than the coefficient of the compensation screw, takes place in the embodiment of FIG. 3 at temperature increases a greater extension of the total length of the inner conductor tube, so that the resonant frequency changes more due to the more increasing mechanical length of the resonator and the less increasing distance between the cover 3 and the free end 2a of the inner conductor tube.
  • Analogous to FIG. 1 can be changed by increasing the torque of the screw 6 ', the length of the inner conductor tube 2, so that by the compensation screw 6' and a vote of the filter can be achieved.
  • FIG. 4 shows a sectional side view of a resonator of a fourth embodiment of the invention High-frequency filter.
  • the embodiment of the FIG. 4 corresponds substantially to the embodiment of the FIG. 3 ,
  • the inner conductor tube and the compensation screw and the housing is identical to FIG. 3 designed.
  • the tuning element 5 ' is used, which is already in FIG. 2 has been described. This tuning element is screwed into the internal thread 6f of the upper cavity 6e of the compensation screw 6 '. Since the components of the embodiment of the FIG. 4 already in relation to FIG. 1 respectively.
  • FIG. 2 will be described on a detailed description of FIG. 4 waived.

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Claims (25)

  1. Filtre haute fréquence de réalisation coaxiale, comprenant un ou plusieurs résonateurs, dans lequel l'un au moins des résonateurs présente les éléments suivants :
    - un conducteur intérieur conçu comme tube conducteur intérieur (2) en au moins un premier matériau,
    - un boîtier conducteur extérieur (1) avec un fond de boîtier (1a), une paroi de boîtier (1b) et un couvercle (3) qui s'étend depuis la paroi de boîtier (1b) ou qui est positionné sur la face supérieure du boîtier, dans lequel le tube conducteur intérieur (2) est couplé électriquement avec le fond de boîtier (1a) et une extrémité libre (2a) du tube conducteur intérieur (2) est située au voisinage de la face supérieure du boîtier et/ou du couvercle (3),
    - un élément de compensation (6) en au moins un second matériau, et
    - ledit au moins un premier matériau présente un coefficient de dilatation thermique plus élevé que ledit au moins un second matériau. caractérisé par les autres caractéristiques suivantes :
    - l'élément de compensation (6) est agencé à l'intérieur du tube conducteur intérieur (2),
    - et l'élément de compensation (6) est relié mécaniquement à au moins un tronçon du tube conducteur intérieur (2), grâce à quoi l'élément de compensation (6) agit sur au moins un tronçon du tube conducteur intérieur (2) en exerçant une force mécanique de telle façon qu'une variation de longueur du tube conducteur intérieur (2) apparaissant en raison de la température est réduite.
  2. Filtre haute fréquence selon la revendication 1, caractérisé en ce que l'élément de compensation (2) est relié de manière détachable au tube conducteur intérieur (2).
  3. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que l'élément de compensation (6) exerce sur ledit au moins un tronçon partiel du tube conducteur intérieur (2) une force qui est essentiellement orientée vers le fond du boîtier (1a).
  4. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que ledit au moins un tronçon partiel est un tronçon d'épaisseur réduite du tube conducteur intérieur (2).
  5. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que ledit au moins un second matériau de l'élément de compensation (6) présente une résistance à la traction plus élevée que ledit au moins un premier matériau du tube conducteur intérieur (2).
  6. Filtre haute fréquence selon la revendication 5, caractérisé en ce que la résistance à la traction dudit au moins un second matériau est plus élevée d'au moins 100 %, de préférence d'au moins 150 %, de façon particulièrement préférée d'au moins 200 %, que la résistance à la traction dudit au moins un premier matériau.
  7. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que le coefficient de dilatation thermique dudit au moins un premier matériau est plus élevé d'au moins 50 %, de préférence d'au moins 100 %, de façon particulièrement préférée d'au moins 130 %, que le coefficient de dilatation thermique dudit au moins un second matériau.
  8. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que ledit au moins un premier matériau est de l'aluminium et/ou ledit au moins un second matériau comprend de l'acier et/ou une céramique.
  9. Filtre à haute fréquence selon l'une des revendications précédentes, caractérisé en ce que l'élément de compensation (6) est relié mécaniquement à au moins un tronçon de la surface intérieure du tube conducteur intérieur (2).
  10. Filtre haute fréquence selon la revendication 9, caractérisé en ce que ledit au moins un tronçon de la surface intérieure est positionné dans la partie inférieure et/ou médiane et/ou supérieure du tube conducteur intérieur (2).
  11. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que le fond du boîtier (1a) présente à sa face inférieure une ouverture (1c) vers l'intérieur du tube conducteur intérieur (2), via laquelle l'élément de compensation (6) est accessible.
  12. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que l'élément de compensation (6) comprend ou est constitué par une vis (6') positionnée à l'intérieur du tube conducteur intérieur (1), laquelle est vissée dans au moins un tronçon taraudé (2b) réalisé à l'intérieur du tube conducteur intérieur (2).
  13. Filtre haute fréquence selon la revendication 12, caractérisé en ce que la vis (6') est introduite dans le tube conducteur intérieur (2) via la face inférieure du fond (1a) à travers une ouverture (1c) dans le fond (1a) du boîtier (1) et est vissée avec le tube conducteur intérieur (2) à l'extrémité libre (2a).
  14. Filtre haute fréquence selon la revendication 12 ou 13, caractérisé en ce que ledit au moins un tronçon taraudé (2b) dans le tube conducteur intérieur (2) est positionné dans sa zone inférieure à la hauteur de ou au voisinage du fond (1a) et/ou dans la région médiane et/ou dans la partie supérieure du tube conducteur intérieur (2) au voisinage de son extrémité libre (2a).
  15. Filtre haute fréquence selon l'une des revendications 12 à 14, prise en dépendance de la revendication 13, caractérisé en ce que, à l'une des extrémités (6b) de la vis (6'), il est réalisé une surface à clé accessible depuis la face inférieure du fond (1a), via laquelle la vis (6') est réglable de manière différente et l'application via cette surface d'une force agissant sur le tube conducteur intérieur (2) en correspondance des différents réglages afin d'influencer et/ou de modifier la longueur effective du tube conducteur intérieur (2) est réglable.
  16. Filtre haute fréquence selon l'une des revendications 12 à 15, caractérisé en ce que la vis (6') comporte une cavité intérieure (6d, 6e).
  17. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce qu'il est prévu au moins un élément d'accord (5, 5') agencé à ou au voisinage de l'extrémité libre (2a) du tube conducteur intérieur (2) qui comprend un matériau diélectrique et/ou conducteur.
  18. Filtre haute fréquence selon la revendication 17, caractérisé en ce que ledit au moins un élément d'accord (5, 5') est fixé sur le couvercle (3) positionné sur la face supérieure du boîtier conducteur extérieur (1).
  19. Filtre haute fréquence selon la revendication 17 ou 18, caractérisé en ce que ledit au moins un élément d'accord (5, 5') est positionné au moins partiellement dans le tube conducteur intérieur (2).
  20. Filtre haute fréquence selon la revendication 19, pris en dépendance de la revendication 18, caractérisé en ce que l'élément d'accord (5, 5') est agencé au moins partiellement dans la cavité intérieure (6e) de la vis.
  21. Filtre haute fréquence selon la revendication 20, caractérisé en ce que la cavité intérieure (6d, 6e) présente, à son extrémité située au voisinage de l'extrémité libre (2a) du tube conducteur intérieur (2), un tronçon de taraudage (6f) pour le vissage de l'élément d'accord (5, 5').
  22. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que le boîtier conducteur extérieur (1) est réalisé d'une seule pièce avec le tube conducteur intérieur (2), en particulier sous forme de pièce fraisée ou de pièce de fonderie.
  23. Filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que les résonateurs sont conçus et couplés de telle manière qu'il se forme une dérivation duplex.
  24. Filtre haute fréquence selon l'une des revendications 1 à 22, caractérisé en ce que les résonateurs sont conçus et couplés de telle manière qu'il se forme un filtre passe-bande ou un filtre de blocage de bande.
  25. Procédé pour accorder un filtre haute fréquence selon l'une des revendications précédentes, caractérisé en ce que la force mécanique que ledit au moins un second matériau de l'élément de compensation (6) exerce sur ledit au moins un premier matériau du tube conducteur intérieur (2) est utilisée pour accorder les propriétés électriques à haute fréquence du filtre haute fréquence.
EP05801877A 2004-12-16 2005-11-10 Filtre haute frequence et procede pour accorder un filtre haute frequence Not-in-force EP1825559B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004060695A DE102004060695B3 (de) 2004-12-16 2004-12-16 Hochfrequenzfilter sowie Verfahren zum Abstimmen eines Hochfrequenzfilters
PCT/EP2005/012062 WO2006063640A1 (fr) 2004-12-16 2005-11-10 Filtre haute frequence et procede pour accorder un filtre haute frequence

Publications (2)

Publication Number Publication Date
EP1825559A1 EP1825559A1 (fr) 2007-08-29
EP1825559B1 true EP1825559B1 (fr) 2010-08-18

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EP05801877A Not-in-force EP1825559B1 (fr) 2004-12-16 2005-11-10 Filtre haute frequence et procede pour accorder un filtre haute frequence

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EP (1) EP1825559B1 (fr)
AT (1) ATE478450T1 (fr)
DE (2) DE102004060695B3 (fr)
WO (1) WO2006063640A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009025408B4 (de) 2009-06-18 2011-09-01 Kathrein-Austria Ges.M.B.H. Hohlraumfilter
DE102010056048A1 (de) * 2010-12-23 2012-06-28 Kathrein-Werke Kg Abstimmbares Hochfrequenzfilter
DE102014007927A1 (de) 2014-05-27 2015-12-03 Kathrein-Werke Kg Hochfrequenzdichtes Gehäuse, insbesondere hochfrequenzdichtes Filtergehäuse
CN108270056B (zh) * 2016-12-30 2020-03-17 中国科学院电子学研究所 一种可精细调频的同轴谐振腔体结构及调频方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6407651B1 (en) * 1999-12-06 2002-06-18 Kathrein, Inc., Scala Division Temperature compensated tunable resonant cavity

Family Cites Families (4)

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Publication number Priority date Publication date Assignee Title
US4521754A (en) * 1983-08-29 1985-06-04 International Telephone And Telegraph Corporation Tuning and temperature compensation arrangement for microwave resonators
US5329687A (en) 1992-10-30 1994-07-19 Teledyne Industries, Inc. Method of forming a filter with integrally formed resonators
FI973842A (fi) 1997-09-30 1999-03-31 Fertron Oy Koaksiaaliresonaattori
JP2004349823A (ja) * 2003-05-20 2004-12-09 Murata Mfg Co Ltd 共振器装置、フィルタ、複合フィルタ装置および通信装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6407651B1 (en) * 1999-12-06 2002-06-18 Kathrein, Inc., Scala Division Temperature compensated tunable resonant cavity

Also Published As

Publication number Publication date
EP1825559A1 (fr) 2007-08-29
ATE478450T1 (de) 2010-09-15
DE102004060695B3 (de) 2006-09-28
DE502005010116D1 (de) 2010-09-30
WO2006063640A1 (fr) 2006-06-22

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