WO2006063640A1 - 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
WO2006063640A1
WO2006063640A1 PCT/EP2005/012062 EP2005012062W WO2006063640A1 WO 2006063640 A1 WO2006063640 A1 WO 2006063640A1 EP 2005012062 W EP2005012062 W EP 2005012062W WO 2006063640 A1 WO2006063640 A1 WO 2006063640A1
Authority
WO
WIPO (PCT)
Prior art keywords
inner conductor
conductor tube
frequency filter
filter according
housing
Prior art date
Application number
PCT/EP2005/012062
Other languages
German (de)
English (en)
Inventor
Ingo Mayr
Original Assignee
Kathrein-Austria Ges.M.B.H.
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 Kathrein-Austria Ges.M.B.H. filed Critical Kathrein-Austria Ges.M.B.H.
Priority to DE502005010116T priority Critical patent/DE502005010116D1/de
Priority to AT05801877T priority patent/ATE478450T1/de
Priority to EP05801877A priority patent/EP1825559B1/fr
Publication of WO2006063640A1 publication Critical patent/WO2006063640A1/fr

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/04—Coaxial resonators

Definitions

  • the invention relates to a high-frequency filter in coaxial design and a corresponding method for tuning such a high-frequency filter.
  • a common antenna is frequently 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. Therefore, an appropriate frequency filtering is required to separate the transmit and receive signals, mi 't on 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.
  • Coaxial-type high-frequency filters include coaxial resonators in which resonator cavities are formed in an outer conductor housing, in which inner conductors are arranged in the form of inner conductor tubes.
  • the interior Terrohre each have a free end, which is adjacent to a lid, which is arranged on top 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.
  • the object of the invention is 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 easily, and a corresponding tuning method.
  • 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 that the temperature expansion of the first material and / or the length of the inner conductor tube is influenced. It is thus achieved that by a mechanical connection between the first and second material properties of the second material affect the first material.
  • the coefficient of thermal expansion of the second material may be "imposed" on the first material. If the coefficient of thermal expansion of the second material is chosen to be lower than that of the first one, a temperature compensation can take place in this way.
  • the length of the inner conductor tube can be influenced by mechanical force exerted by the compensation element on the inner conductor tube.
  • preference may be given to manufacturing the inner conductor tube separately from a material other than the housing.
  • the production of the filter is facilitated, since no mechanical tolerances occur when assembling different materials and no special tools are needed for mounting ge. Furthermore, intermodulation problems are avoided since there are no defects at junctions between different materials.
  • 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 arranged 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 directly.
  • 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 influencing the temperature expansion of the first material and a reduction of the length of the inner conductor tube by directed downward force can be achieved.
  • the at least one subsection of the inner conductor tube is a section of lesser 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 may be greater than that of the second material, in particular by at least 50%, preferably by at least 100%, particularly preferably by 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 received substantially in the interior of the inner conductor tube and mechanically connected to an inner surface portion 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 screwed into at least one threaded section formed in the interior of the inner conductor tube.
  • 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 is provided at one end of the screw. rotating the screw is positioned, said end being disposed at the opening at the bottom of the housing bottom.
  • 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 an inner 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 occur through joints in the filter.
  • the filter according to the invention can be designed, for example, as a duplexer, bandpass filter or band-stop filter.
  • the invention further comprises a tuning method for such a filter, wherein the mechanical force, the at least one second Material of the compensation element exerts on the at least one first material of the inner conductor tube, is used for tuning the electrical high-frequency characteristics of the high-frequency filter.
  • the invention further relates to a method for producing the high-frequency filter according to the invention.
  • a method for producing the high-frequency filter according to the invention In this method, an outer conductor housing with housing bottom and housing wall is produced, 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. Subsequently, at least one compensation element made of at least one second material is connected to the inner conductor tube and finally the tuning of the electrical high-frequency properties of the filter takes place in that the mechanical force exerted by the at least one second material of the compensation element on the at least one first material of the inner conductor tube, is adjusted accordingly.
  • 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 a sectional side view of a resonator of a first embodiment of the high-frequency filter according to the invention
  • FIG. 1A a detail view of the detail X of FIG. 1;
  • FIG. 2 shows a sectional side view of a resonator of a second embodiment of the high-frequency filter according to the invention
  • FIG. 3 shows a sectional side view of a resonator of a third embodiment of the high-frequency filter according to the invention
  • FIG. 4 shows a sectional side view of a resonator of a fourth embodiment of the high-frequency filter according to the invention.
  • FIG. 1 shows a sectional side view of a resonator 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 Figure 1 comprises an outer conductor housing 1 with a housing bottom Ia, from which a circumferential housing wall Ib extends. Coupling openings may be provided in the housing wall for electrical coupling to adjacent resonators, and the housings of all resonators may be formed integrally from a material.
  • An inner conductor in the form of a cylindrical inner conductor tube 2 is integrally formed in the housing bottom 1a, 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 several screws 4. It is also conceivable that the cover is not attached to the upper side of the housing, but that the cover 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 top and the housing bottom. Possibly. For example, the cover can also cover 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 in the press-fit bush, into which a tuning tip 5b is screwed, which protrudes from the lower end of the press-fit bushing 5a.
  • the tuning tip has at its top, located in the press-in socket end, a hexagonal socket (not shown), so that with a corresponding hexagonal key, 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 has This in turn influences the capacitance between the inner conductor tube and the cover, which influences the resonant frequency of the resonator and allows the high-frequency filter to be tuned in.
  • the press-in socket 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 includes a compensation screw ⁇ 1 , the following is sometimes referred to as a screw 6 ', which by a Thickened edge indicated external thread 6a and a screw head 6b includes.
  • the screw 6 ' was inserted through an opening Ic in the bottom of the housing 1 on the underside of the bottom 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 1 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 is made longer and is further screwed into the internal thread 2b.
  • the screw “ 6 1 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 In the upper cavity ⁇ e is provided an internal thread 6f (indicated by a thicker black line) into which another 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 thermal expansion coefficient of the inner conductor tube is preferably at least 50%, in particular at least 100%, and particularly preferably at least 130
  • the screw 6 whereas the inner conductor tube 2 is made of aluminum.
  • a material for the inner conductor tube for example, aluminum of the type EN AW-5083 in question, which has a yield strength R p o, 2 of at least 105 N / mm 2 and a tensile strength R 1n of at least 255 N / mm 2 .
  • Temperaturausdehnungs- be the coefficient of this material is 24.2 x 10 "6 / K.
  • the material of the screw can, for example, stainless steel of type X17CrNi l ⁇ -2.
  • This stainless steel has a yield strength R p o, 2 of at least 600 N / mm 2 and a tensile strength R 1n of at least 800 N / mm 2
  • the temperature expansion coefficient of this material is 10.0 ⁇ 10 -6 / K. In the case of the materials just mentioned, with 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 counteracted in the exemplary embodiment shown in FIG. 1 in that the temperature expansion is reduced by the lower coefficient of thermal expansion of the screw and at the same time the distance between cover 3 and free end 2a of the inner conductor tube is increased, resulting in a decrease in the capacitance between cover and inner conductor tube leads.
  • FIG. 1A shows a detailed view of the section X shown in FIG. 1 at the upper free end 2a of the inner conductor tube 2.
  • the thickened section of the inner conductor tube 2 at the free end 2a can be seen in detail here, this thickened section having a cylindrical peripheral shoulder at the upper end 2c, whereby an opening 2d is formed, in which the tuning tip 5b engages. It can also be seen in detail again that only the foremost tip ⁇ c 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 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 ' has a socket 5b' which has at its lower end two male threaded sections 5c 'which are separated from each other by two cuts 5d' (indicated by thick 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 Tuned 5a' which consists in the embodiment of Figure 2 of dielectric and preferably ceramic material and 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 influences 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 1 .
  • FIG. 3 shows a sectional side view of a resonator in a third embodiment of the high-frequency filter according to the invention.
  • the structure of the filter of Figure 3 is similar to the filter of Figure 1, in particular the same, located in the cover 3 tuning element 5 is used.
  • the compensation screw 6 'of Figure 3 corresponds to the compensation screw 6' of Figure 1.
  • the main difference of the 'filter of Figure 3 to Figure 1 is that the thickened portion of the inner conductor tube with the internal thread 2b is not at the upper, free more End 2a of the inner conductor tube 2, but is arranged in the central region of the inner conductor tube.
  • FIG. 3A A detailed representation of the section Y, which shows the thickened section in the middle region of the inner conductor tube 2, can be seen here from FIG. 3A.
  • 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 coefficient of thermal expansion of the screw Inner conductor tube is imposed.
  • the thermal expansion compensation effected thereby does not affect the entire length of the inner conductor tube, but only the lower portion of the inner conductor tube which extends from the thickened portion of the inner thread 2b to the upper side of the housing bottom 1a , In the area above the thread 2b, the inner conductor tube 2 expands in accordance with its own temperature-expansion coefficient.
  • expansion coefficient of the temperature- of the material of the inner conductor tube is preferably greater than the coefficient of the compensating screw, made in the embodiment of Figure 3 increases in temperature greater Ausdehnung- the overall ⁇ total length of the inner conductor tube, then the resonance that frequency due to the Thus, it is thus easier to adjust the strength of the temperature compensation by the portion of the inner conductor tube on which the tensile force of the compensation screw acts It is also possible here for the threaded section 2b to be displaced even further down to the base point of the inner conductor tube, the temperature compensation becoming ever smaller as the thread section 2b becomes deeper and deeper by increasing the tightening torque of the screw 6 ', the length of the inner conductor tube 2 are changed, so that by the compensation screw 6 1 , 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 Figure 4 substantially corresponds to the embodiment of Figure 3.
  • the inner conductor tube and the compensation screw and the housing is designed identical to Figure 3.
  • the tuning element 5 ' which has already been described in FIG. 2 is used. This tuning element is screwed into the internal thread 6f of the upper cavity 6e of the compensation screw 6 1 . Since the components of the embodiment of FIG. 4 have already been described above in relation to FIG. 1 and FIG. 2, a detailed description of FIG. 4 is dispensed with.

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Abstract

L'invention concerne un filtre haute fréquence de structure coaxiale, comprenant un ou plusieurs résonateurs, au moins un des résonateurs présentant les caractéristiques suivantes: un conducteur intérieur à base d'un premier matériau est conçu sous forme de tube de conducteur intérieur (2); un boîtier de conducteur extérieur (1) comportant un fond de boîtier (1a), une paroi de boîtier (1b) et un couvercle (3) s'étendant hors de la paroi du boîtier (1b) ou étant positionné sur la face supérieure du boîtier, le tube de conducteur intérieur (1) étant couplé électriquement avec le fond du boîtier (1a) et une extrémité libre (2a) du tube de conducteur intérieur (2) reposant à proximité de la face supérieure du boîtier et/ou du couvercle (3); un élément de compensation (6) à base d'au moins un second matériau, qui est relié au tube du conducteur intérieur (2); l'élément de compensation (6) agit sur au moins une section partielle du tube du conducteur intérieur (2) par exercice d'une force mécanique, de sorte à influer sur une variation en longueur du tube de conducteur intérieur (2) inhérente à la température et/ou à la modifier et/ou à la réduire.
PCT/EP2005/012062 2004-12-16 2005-11-10 Filtre haute frequence et procede pour accorder un filtre haute frequence WO2006063640A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502005010116T DE502005010116D1 (de) 2004-12-16 2005-11-10 Hochfrequenzfilter sowie verfahren zum abstimmen eines hochfrequenzfilters
AT05801877T ATE478450T1 (de) 2004-12-16 2005-11-10 Hochfrequenzfilter sowie verfahren zum abstimmen eines hochfrequenzfilters
EP05801877A EP1825559B1 (fr) 2004-12-16 2005-11-10 Filtre haute frequence et procede pour accorder un filtre haute frequence

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004060695.1 2004-12-16
DE102004060695A DE102004060695B3 (de) 2004-12-16 2004-12-16 Hochfrequenzfilter sowie Verfahren zum Abstimmen eines Hochfrequenzfilters

Publications (1)

Publication Number Publication Date
WO2006063640A1 true WO2006063640A1 (fr) 2006-06-22

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Application Number Title Priority Date Filing Date
PCT/EP2005/012062 WO2006063640A1 (fr) 2004-12-16 2005-11-10 Filtre haute frequence et procede pour accorder un filtre haute frequence

Country Status (4)

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

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2010145758A1 (fr) 2009-06-18 2010-12-23 Kathrein-Austria Ges.M.B.H. Filtre à cavité
WO2012084154A1 (fr) * 2010-12-23 2012-06-28 Kathrein-Werke Kg Filtre haute fréquence syntonisable
DE102014007927A1 (de) 2014-05-27 2015-12-03 Kathrein-Werke Kg Hochfrequenzdichtes Gehäuse, insbesondere hochfrequenzdichtes Filtergehäuse
CN108270056A (zh) * 2016-12-30 2018-07-10 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 (5)

* Cited by examiner, † Cited by third party
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
US6320483B1 (en) 1997-09-30 2001-11-20 Allgon Ab Multi surface coupled coaxial resonator
US6407651B1 (en) 1999-12-06 2002-06-18 Kathrein, Inc., Scala Division Temperature compensated tunable resonant cavity
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 (5)

* Cited by examiner, † Cited by third party
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
US6320483B1 (en) 1997-09-30 2001-11-20 Allgon Ab Multi surface coupled coaxial resonator
US6407651B1 (en) 1999-12-06 2002-06-18 Kathrein, Inc., Scala Division Temperature compensated tunable resonant cavity
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 2003, no. 12 5 December 2003 (2003-12-05) *

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8872605B2 (en) 2009-06-18 2014-10-28 Kathrein-Austria Ges.M.B.H. Cavity filter
DE102009025408A1 (de) 2009-06-18 2010-12-23 Kathrein-Austria Ges.M.B.H. Hohlraumfilter
DE102009025408B4 (de) * 2009-06-18 2011-09-01 Kathrein-Austria Ges.M.B.H. Hohlraumfilter
WO2010145758A1 (fr) 2009-06-18 2010-12-23 Kathrein-Austria Ges.M.B.H. Filtre à cavité
AU2011348462B2 (en) * 2010-12-23 2015-07-30 Kathrein-Werke Kg Tunable high-frequency filter
US8947179B2 (en) 2010-12-23 2015-02-03 Kathrein-Werke Kg Tunable high-frequency filter
WO2012084154A1 (fr) * 2010-12-23 2012-06-28 Kathrein-Werke Kg Filtre haute fréquence syntonisable
DE102014007927A1 (de) 2014-05-27 2015-12-03 Kathrein-Werke Kg Hochfrequenzdichtes Gehäuse, insbesondere hochfrequenzdichtes Filtergehäuse
CN106415921A (zh) * 2014-05-27 2017-02-15 凯瑟雷恩工厂两合公司 高频屏蔽壳体、 特别是高频屏蔽滤波器壳体
US10090573B2 (en) 2014-05-27 2018-10-02 Kathrein-Werke Kg High-frequency shielded housing, in particular high-frequency shielded filter housing
CN106415921B (zh) * 2014-05-27 2019-11-22 凯瑟雷恩欧洲股份公司 高频屏蔽壳体
CN108270056A (zh) * 2016-12-30 2018-07-10 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
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

Also Published As

Publication number Publication date
DE502005010116D1 (de) 2010-09-30
DE102004060695B3 (de) 2006-09-28
EP1825559A1 (fr) 2007-08-29
ATE478450T1 (de) 2010-09-15
EP1825559B1 (fr) 2010-08-18

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