EP3320578A1 - Gewindelose abstimmelemente für koaxialresonatoren und verfahren zur abstimmung derselben - Google Patents
Gewindelose abstimmelemente für koaxialresonatoren und verfahren zur abstimmung derselbenInfo
- Publication number
- EP3320578A1 EP3320578A1 EP16736484.3A EP16736484A EP3320578A1 EP 3320578 A1 EP3320578 A1 EP 3320578A1 EP 16736484 A EP16736484 A EP 16736484A EP 3320578 A1 EP3320578 A1 EP 3320578A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- inner conductor
- tuning element
- bore
- frequency filter
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims 5
- 239000004020 conductor Substances 0.000 claims abstract 87
- 238000003780 insertion Methods 0.000 claims 12
- 230000037431 insertion Effects 0.000 claims 12
- 230000008878 coupling Effects 0.000 claims 7
- 238000010168 coupling process Methods 0.000 claims 7
- 238000005859 coupling reaction Methods 0.000 claims 7
- 239000000853 adhesive Substances 0.000 claims 3
- 230000001070 adhesive effect Effects 0.000 claims 3
- 239000003989 dielectric material Substances 0.000 claims 3
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 239000000919 ceramic Substances 0.000 claims 1
- 238000007598 dipping method Methods 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
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
-
- 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
- H01P1/202—Coaxial filters
-
- 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
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
- H01P1/2133—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies using coaxial filters
-
- 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
Definitions
- the invention relates to a high-frequency filter in coaxial design, which can be tuned via at least one tuning element, wherein the tuning is gewin ⁇ delos within the high-frequency filter movable.
- a common antenna is often used for transmit and receive signals.
- the transmit and receive signals each use different Frequenzbe ⁇ rich, 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 from the antenna to the receiver washerge ⁇ passes.
- Hochfre- quenzfilter used in coaxial design.
- Two to ⁇ sammen arrivee high frequency filter thereby forming a so-called duplexer, which allows a largely decoupled interconnection of transmitters and receivers to a common antenna.
- a pair of high-frequency filters can be used, both of which allow a specific frequency band (Bandpassfil ⁇ ter).
- a pair of high frequency filters may be used, both of which block a particular frequency band (bandstop filter).
- a pair of high frequency filters may be used, one of which filters below a frequency between transmit and receive bands and blocks frequencies above that frequency (low pass filter), and the other filter locks frequencies below a frequency between transmit and receive bands and above lying Fre ⁇ frequencies passes (high pass filter).
- Other combinations of the just mentioned filter types are conceivable. This also applies to high-frequency filters, which are constructed as a single zelfilter and thus have only one input and output ei ⁇ NEN.
- High-frequency filters which consist of coaxial resonators, can be easily produced from milling or casting parts.
- these resonators ensure a high electrical quality and a relatively high temperature stability.
- a fine-tuning after production is necessary.
- a high-frequency filter is known, are introduced in the tuning elements in the resonator ⁇ .
- the introduction of this tuning be ⁇ affects a change in the resonance frequency of the high-frequency quenzfilters.
- the tuning elements are thereby driven in by au ⁇ ßerrenz the high frequency filter.
- This ge ⁇ schieht via a threaded connection between the tuning element and a sleeve which is inserted into an opening of the high-frequency filter ⁇ .
- An inner conductor is galvanically connected to an end face of the high-frequency housing and, starting from this end face, extends in the direction of an opposite, further end face of the high-frequency housing. At this further end face a pin is arranged, which stretches in the direction of réellelei ⁇ ters.
- the inner conductor comprises an inner conductor bore into which the pin protrudes.
- the inner conductor is formed in two parts, the second part is tele scopically ⁇ longitudinally movable in the first part, whereby the inner conductor is of multipart construction and variable in length.
- the distance by which the traversing of the second part of the mecaniclei ⁇ ters relative to the first part of the inner conductor bar, can be adjusted by a threaded rod ⁇ the fixedly ver ⁇ connected with the second part of the inner conductor and from the outer side of the high-frequency filter is operable.
- a threaded rod ⁇ the fixedly ver ⁇ connected with the second part of the inner conductor and from the outer side of the high-frequency filter is operable.
- Another Hochfre ⁇ quenzfilter is known. This comprises an inner conductor, which is galvanically connected to a housing bottom of the high-frequency filter and extends from the housing bottom in the direction of the housing cover. At the same time he ⁇ stretches a first tuning element from the housing cover in the direction of the housing bottom.
- the inner conductor comprises an inner conductor bore, into which the first tuning element extends.
- a second tuning element can be screwed or inserted from outside the high-frequency filter in the réellelei ⁇ terbohrung via a thread.
- a disadvantage of DE 10 2010 056 048 AI is that when using a thread abrasion can occur, which leads to intermodulation products. Be tuned very accurately in the case that the second tuning element is merely inserted Müs ⁇ sen the diameter of the inner conductor bore and the outside diameter of the tuning element selected to form a permanent grip is ensured.
- the object of the present invention is therefore to provide a high-frequency filter and a method for tuning the high-frequency filter, which compared to the prior art cheaper and easier to manufacture, or is carried out and provides better results over a longer period.
- the object is with respect to the high-frequency filter by the features of claim 1 and with respect to the procedural ⁇ rens for balancing the high-frequency filter by the Characteristics of claim 17 solved.
- the high-frequency filter according to the invention in coaxial design comprises at least one resonator with a first inner conductor and with an outer conductor housing.
- the outer conductor housing comprises a housing bottom, a housing cover spaced from the housing cover and a between see the housing bottom and the housing cover encircling housing wall.
- a first inner conductor is galvanically connected to the housing ⁇ bottom and extending in the axial direction of the housing bottom in the direction of the housing cover.
- the first inner conductor ends at a distance in front of the housing cover and / or galva of the housing cover ⁇ cally separated.
- the resonator further comprises a second inner conductor, which is galvanically connected to the housing cover and extending in the axial direction from the housing cover in the direction of the housing bottom.
- the first and the second inner conductor are axially non-displaceable ⁇ Lich, so length variably arranged and coaxial with each other.
- the first inner conductor and the housing bottom are, like the second inner conductor and the Genzousede ⁇ ckel, preferably integrally formed.
- the first and / or second inner conductor have an inner conductor bore.
- the inner conductor bore of the first or second inner conductor passes through the outer conductor housing and opens into an insertion opening.
- a tuning element is arranged axially displaceable within the inner conductor bore of the first or second inner conductor.
- the tuning element is constructed and / or so is ⁇ arranged that a portion of the tuning element under ⁇ differently far into the free space between the distance immersed in both inner conductors.
- a socket or a sleeve within the inner conductor bore between the first inner conductor and the tuning element or the second inner conductor and the tuning element is arranged positively or non-positively.
- the tuning element has a region with a widened diameter, this region being located either in the middle of the tuning element and / or at the end of the tuning element, which is arranged closer to the insertion opening.
- the region with the widened diameter is elastically deformable, at least in the radial direction, on the longitudinal axis, which runs centrally through the tuning element .
- the tuning element is axially displaceable, whereby no thread is necessary. Because the tuning element is axially displaceable in the inner conductor bore, smaller filters can be produced because the diameter of the inner conductor bore is no longer limited to a minimum diameter that was previously necessary in order to still receive a thread to be able to. The elimination of the thread also leads to less metallic abrasion during tuning, which would cause disturbing effects in the high-frequency filter (PIM - passive intermodulation).
- the AbStimmelement can be pressed, for example, preferably ⁇ injected with compressed air in the inner conductor bore. It is also advantageous that there is a second inner conductor adjacent to a first inner conductor, which extend to both inner conductor coaxially aufei ⁇ Nander.
- the inner conductor bore does not need to be specially aftertreated to ensure that the tuning element fits optimally or accurately.
- the inner conductor hole can be made with a uniform diameter.
- the diameter of the tuning element can be chosen arbitrarily. Characterized in that the tuning element has an elastic region with a widened diameter, it can be ensured even without the use of a thread that the Ab ⁇ tuning element safe and durable sitting inside the inner conductor bore.
- the inventive method for tuning the high-frequency filter includes various method steps.
- a first procedural step the high-frequency filter is closed.
- the further step of establishing a connection between a fastening device, which is arranged on the tuning takes place, with a Koppe ⁇ l Rhein the adjusting device.
- the tuning element is inserted into the inner ⁇ conductor bore of the first or second inner conductor.
- the filter properties are measured, wherein, depending on the measurement result, the tuning element is displaced further in the direction of the insertion opening or away from the insertion opening by means of the coupling device of the adjusting device.
- the method steps "measuring” and “shifting” are repeated until the high-frequency filter has the desired filter properties.
- an adhesive bond is added between the tuning element and the inner conductor bore of the first or second inner conductor, whereby the tuning element is permanently fixed immovably in its axial position within the inner conductor bore.
- the axial displacement of the tuning element within the inner conductor bore which is particularly easily via the coupling means, the component of the adjusting device, can be performed using egg ⁇ nes linear motor or stepper motor.
- the widening of a region of the tuning element also means that this region with the widened diameter has an excess with respect to the inner conductor bore and the remaining region has an undersize with respect to the inner conductor bore.
- the area with the broadened diameter causes the area without the broadened diameter centered within the inner conductor bore is arranged.
- the Ab ⁇ tuning element is non-positively within the inner conductor bore, but can still be moved axially by means of a stepper motor or a linear motor.
- An independent displacement of the Abstimmele ⁇ ment no longer takes place, so that this example, very easily by means of an adhesive bond permanently on the inner conductor bore, ie on the inner wall of the inner conductor bore, can be fixed.
- the region with the enlarged diameter can be made at least partially slotted.
- the Ab ⁇ tuning element can be easily inserted into the inner conductor bore, while still ensuring that the tuning element frictionally rests within the inner conductor bore and not due to gravity alone, or vibrations within the manufacturing or balancing process of High ⁇ frequency filter changed in position.
- the tuning element is arranged in the inner conductor bore of the first inner conductor and protrudes from this forth ⁇ into the inner conductor bore of the second inner conductor, both inner conductor preferably not touching on its front side and more preferably are arranged without overlap to each other, so that none of the two inner conductors is immersed in the respective other inner conductor. It would also be possible if the tuning element is arranged in the inner conductor bore of the second inner conductor and projects out of this into the inner conductor bore of the first inner conductor. Again, both inner conductors should not touch and can also be arranged without overlap each other. An overlap would also be possible.
- the inner conductor bore of the first inner conductor has a larger diameter than the second inner conductor as a whole, wherein the second inner conductor then at least partially immersed in the réellelei ⁇ ter bore of the first inner conductor.
- a distance space is formed, that is, the inner conductor do not touch.
- the tuning element is designed and / or arranged such that at least one section of the tuning element dips far into the free space between the two inner conductors.
- the tuning element may be formed, for example mushroom-shaped in the case ⁇ sem.
- the inner conductor bore of the second inner conductor has a larger diameter than the first inner conductor and this then dips into the inner conductor bore of the second inner conductor.
- it may also be mög ⁇ Lich that the tuning element at the end which is spaced from the insertion opening furthest has a receiving opening.
- the tuning element is disposed in the inner conductor bore of the first inner conductor, the second inner conductor immersed in the receiving opening of the Abstimmelements.
- the tuning element is arranged in the inner conductor bore of the second inner conductor, in which case the first inner conductor is immersed in this.
- the corresponding embodiments with respect to the arrangement of the Abstimmelements to the first and / or second inner conductor and the arrangement of the two inner conductors to each other are dependent on the frequency range over which the high-frequency filter must be tuned.
- the inner conductor bore widened in the direction of the insertion opening, ie in the direction outward of the outer conductor housing.
- This broadening may be, for example getapert or in longitudinal section ko ⁇ cally.
- a parabolic broadening is also possible. This not only facilitates the insertion of the Abstimmelements, but this broadening can also serve to facilitate the inclusion of adhesive, by which the tuning element permanently fixed in the inner conductor hole can be fixed.
- the tuning element has a first sliding surface as a peripheral surface, which extends at least in the region in which the Ab ⁇ tuning element is guided within the inner conductor bore.
- a second sliding surface as the inner wall, wherein the coefficients of friction of the first and the second sliding surface must be selected such that the abrading Tuning element is securely located within the inner conductor bore and is axially displaceable only by the use of a stepper motor or a linear motor after insertion.
- the bushing or sleeve is preferably elasticized forms ⁇ and is preferably further comprised of a ⁇ lektrischen the material.
- the bush serves to produce a frictional connection to the tuning element.
- the bush can for example consist of a rubber mass ⁇ .
- the sleeve is arranged within the in ⁇ nenleiter-bore of the first or second inner conductor form-fitting or force-fitting. May be used instead of a socket as explained, also a sleeve comparable turns are, the sleeve is drawn over the tuning element before the tuning element is inserted into the réellelei ⁇ ter-bore. Instead, a socket is already in the inner conductor bore before the tuning element is inserted.
- Both the bush and the sleeve which are preferably both made of a material ⁇ lectric, also allow that the tuning instead of a dielectric Ma ⁇ material, from which it is preferably formed, are also formed of an electrically conductive material that can.
- the ends of which preferably have an at least partially circumferential flange, so that the bushing is arranged axially immovably within the inner conductor bore of the first or second inner conductor.
- a first end of the bushing rests with its at least partially circumferential flange on a shoulder which is located within the inner conductor. Hole of the first or second inner conductor is arranged.
- the inner conductor bore therefore has a shoulder and is therefore at least partially tapered.
- a second end of the bush is supported with its at least partially also flanged flange on an outer side of the outer conductor housing at the insertion opening of the inner conductor bore.
- the tuning element also has a fastener at the end closer to the insertion opening.
- This fastening device serves to be able to connect an aid to the tuning element, wherein a tensile or pressure movement can be transmitted to the tuning means via this tool, whereby it can be moved back and forth within the inner conductor bore.
- this tool it is preferably a steep Ver ⁇ device comprising a coupling means, said coupling means is connected to the Befest Trentseinrich- processing. At least part of the coupling device can be introduced or inserted from outside the insertion opening.
- the adjusting device also includes additionally the linear or stepper motor.
- connection between the fastening device and the coupling device is designed as a releasable connection.
- a Bajonettverbin ⁇ dung, or a screw or a lock, or a vacuum connection are possible.
- the fastening device and the tuning element are preferably integrally formed.
- the tuning element is preferably permanently fixed within the inner conductor bore. This is done by means of an adhesive connection, whereby the adhesive connection is introduced from outside the outer conductor housing via the insertion opening into the inner conductor bore, whereby the end of the Abstimm ⁇ elements, which is closer to the insertion, with the inner wall of the inner conductor bore is connected.
- FIGS. 1A, 1B are identical to FIGS. 1A, 1B:
- FIGS. 2A, 2B are identical to FIGS. 2A, 2B:
- FIGS. 1A and 1B a side view of an embodiment ⁇ example of a Abstimmelements, wherein one end of the Abstimmelements an oversize and another end has an undersize with respect to an inner conductor bore; a cross section through the end with the excess of the Abstimmelements of Figure 3A; a side view of another exemplary embodiment of the Abstimmelements ⁇ , wherein one end of the Abstimmelements is slotted and widened towards the outside and thereby is elas ⁇ table in its end; a rotated by a certain angle side view of the Abstimmelements of Figure 4A, wherein an engagement opening for a coupling device is visible; a longitudinal section through another Aus ⁇ exemplary embodiment of the high-frequency filter according to the invention, wherein in the Certainlylei ⁇ ter bore a socket is inserted, between which and the tuning element is a frictional engagement;
- Figure 5B shows a cross section through the sleeve from ⁇ Fi gur 5A; a longitudinal section through another Aus
- various longitudinal sections of the coor ⁇ melement is fixed within the inner conductor bore through an off ⁇ exemplary implementation of the high-frequency filter according to the invention, wherein the connection between the fastening device and the coupling device is a latch, and wherein by means of an adhesive; a longitudinal section through an istsbei ⁇ game of the high-frequency filter according to the invention, wherein the connection between the fastening device and the coupling device is a screw connection;
- Figure 11 is a longitudinal section through a further embodiment of the high frequency filter according to the invention, wherein the compound Zvi ⁇ rule of the fastening device and the coupling device is a vacuum joint; and a flowchart which explains how an adjustment of the high-frequency filter according to the invention takes place.
- FIG 1A shows a spatial representation of a longitudinal section through the inventive ⁇ high frequency filter 1 with a non-threaded tuning element 9.
- the high-frequency filter 1 comprises at least one resonator 2, which has a first inner conductor 3 and an outer conductor housing. 4
- the outer conductor housing 4 comprises a Gehotu ⁇ seboden 5, a spaced from the housing bottom 5 of the housing cover 6 and a 6-round casing wall between the casing base 5 and the housing cover 14.
- the first In ⁇ nenleiter 3 is electrically connected to the housing base 5 and extends in the axial direction from the housing bottom 5 in the direction of the housing cover 6. In this case, the first inner conductor 3 ends at a distance in front of the housing cover 6 and / or is electrically isolated from the housing cover 6.
- the first inner conductor 3 and the housing bottom 5 are preferably formed in one piece. A multi-part from ⁇ education would also be possible, however.
- the resonator 2 also comprises a second inner conductor 7.
- the second inner conductor 7 is galvanically connected to the housing cover 6 and extends in the axial direction from the housing cover 6 in the direction of the housing. koruse foundeds 5. Both the first and the second ⁇ In nenleiter 3, 7 are axially immovable. Both inner conductors 3, 7 run towards each other and are aligned coaxially with each other.
- the first inner conductor 3 and the housing bottom 5 are integrally formed. A multi-part training would also be possible. The same applies to the second inner conductor
- the first inner conductor 3 has an inner conductor bore 8.
- a tuning element 9 is arranged axially displaceable within the inner conductor bore 8 of the first inner conductor 3.
- the tuning element 9 is designed and / or arranged so that a portion of the Abstimmele- ment 9 different levels in the free space between the two inner conductors 3, 7 dips.
- it is preferably an end 11 of the tuning element 9, which is remote from the other end 10, which is closer to the insertion 13 is arranged.
- the inner conductor bore 8 is formed solely in the first inner conductor 3.
- this inner conductor bore 8 could also, as will be explained below, be formed on the two ⁇ th inner conductor 7, in which case the housing cover 6 would be penetrated by the inner conductor bore and would have the insertion opening 13.
- the tuning element 9 is formed in this case as a hollow cylinder, wherein in the hollow cylinder, preferably the second inner conductor 7 is inserted.
- a fastening device 12 is formed at the other end 10, which is closer to the insertion opening 13 in the inserted state of the Abstimmele ⁇ ment 9, a fastening device 12 is formed.
- This Fixed To ⁇ restriction device 12 serves, as will be explained in more detail hereinafter, in addition, to move the tuning element 9 axially within the inner conductor bore. 8
- the tuning element 9 is preferably pressed into the réellelei ⁇ ter bore 8, or shot ⁇ shot with compressed air.
- the outer diameter of the Abstimmelements 9 is dimensioned such that there is a frictional connection between the tuning element 9 and the inner wall of the inner conductor bore 8, so that the tuning element 9 can not move independently within the inner conductor bore.
- the outer peripheral surface of the Abstim ⁇ melements 9, and the inner wall of the inner conductor bore 8 is taken into account. Both surfaces can be seen as a sliding surface, wherein the Soersonsflä ⁇ surface of the Abstimmelements 9 can be considered as a first sliding surface and the inner wall of the inner conductor bore 8 as a second sliding surface.
- the friction coefficient of both sliding surfaces must be chosen such that a corresponding adhesion is present.
- the inner wall, so the second sliding surface of the inner conductor bore 8 is smooth. This means that the inner conductor bore 8 has no thread.
- the tuning element 9 is galvanically separated from the first and second inner conductor 3, 7.
- FIG. 1B shows a spatial representation of a longitudinal section through a further exemplary embodiment of the high-frequency filter 1 according to the invention.
- the second inner conductor 7 likewise has an inner conductor bore 15.
- the tuning element 9 is located in the inner conductor bore 8 of the first inner conductor 3.
- the tuning element 9 is designed such that it covers not only a part of the inner wall of the inner conductor bore 8, but also the end face of the first inner conductor 3 and the part of Side peripheral surface of the first inner conductor 3, which adjoins directly to the front side.
- the tuning element 9 therefore has a kind of mushroom shape.
- the tuning element 9 is arranged in the réellelei ⁇ ter-bore 8 of the first inner conductor 3 and protrudes out of this and into the inner conductor bore 15 of the second inner conductor 7, both in ⁇ nenleiter 3, 7 at their end faces do not touch.
- the tuning element 9 is arranged in the inner conductor bore 15 of the second inner conductor 7.
- the tuning element 9 preferably extends over more than 30%, more preferably over more than 40%, more preferably over more than 50% of the length of the inner conductor Bore 8 of the first inner conductor 3. It may also extend over more than 100% of the length and protrude from the inner conductor bore 8 of the first inner conductor 3 at the insertion opening 13. However, it may also be that the tuning element 9 does not reach the insertion opening as shown in FIG. 1B and ends within the inner conductor bore 8 of the first inner conductor 3.
- the inner conductor bore 15 of the second inner conductor 7 has in this embodiment, a larger diameter than the first inner conductor 3.
- the first inner conductor 3 in the inner conductor bore 15 of the second inner conductor 7 at least partially a ⁇ dive, wherein between the two inner conductors 3, 7 a Ab- space 16 is formed, as shown in Figure 2B Darge ⁇ is.
- FIG. 2B shows a two-part construction of the tuning element 9 .
- a first part is located within the inner ⁇ conductor bore 8 of the first inner conductor 3, whereas a second part is located, and outside the inner conductor bore 8 for example, the end face of the first inner conductor 3 and the portion of the side peripheral surface, which adjoins the end face , covered.
- the tuning element 9 can also be formed in one piece from ⁇ .
- Figure 2B shows a saudimensiona ⁇ le representation of a longitudinal section to the execution ⁇ example of the high frequency filter 1, which is shown in Figure 1B.
- Figure 2A is a two-dimensional depicting ⁇ lung of a longitudinal section of the embodiment of High-frequency filter 1, as shown in Figure 1A.
- the tuning ⁇ element 9 extends almost up to the housing cover 6.
- the tuning element 9 verhin ⁇ changed, that the first inner conductor 3 and the second inner conductor 7 overlap directly.
- FIG. 3A shows a side view of an execution ⁇ example of a tuning element 9, one end 10 of the tuning element 9 has an excess and the rest of the tuning ⁇ elements 11 and thus, inter alia, another end 11 of a UN termholder based on an inner conductor bore 8
- FIG. 3B shows a corresponding cross section through the end 10 of the tuning element 9 on which the oversize is present.
- the oversize results from an at least partially enlarged diameter in the form of elevations 21 which extend in the longitudinal direction, that is to say in the axial direction of the tuning element 9.
- These elevations 21 preferably extend over a length of less than one third, more preferably less than a quarter of the total length of the tuning element 9.
- elevations 21 can, for example, within ei ⁇ nes milling or casting process in which the voting ment 9 is basically made to be added with.
- a mounting opening 20 which serves to receive a lock 45, as will be described in the further drawings.
- the end 10, which has the attachment opening 20, is also regarded as a fastening device 12.
- the elevations 21 of the Abstimmelements 9 of Figure 3A are preferably elastic.
- the tuning element 9 preferably consists of a dielectric material, in particular a ceramic or a plastic.
- Figures 4A and 4B show a side view of ei ⁇ nem further embodiment of the Abstimmelements 9, wherein the end 10 of the Abstimmelements 9 has a slot 25 in the longitudinal direction and widens to the outside.
- This slot 25 causes the end 10 of the Abstimmelements 9, which, in the inserted state, preferably closer to the insertion opening 13 is arranged, as the other end 11, has elastic properties and can bend in the radial direction on the longitudinal axis, wherein the longitudinal axis passes centrally through the tuning element 9.
- the region with the enlarged diameter is arranged in FIGS . 3A and 4A at the end 10 of the tuning element 9.
- the Area with the enlarged diameter in the middle of the Abstimmelements 9 is located.
- FIG. 4B shows another side view of the tuning element 9, as shown in FIG. 4A, except that within FIG. 4B the tuning element 9 has been rotated by approximately 90 °.
- the attachment opening 20 can be seen, which in turn is part of the fastening device 12 of the tuning element 9 and over which, as will be explained later, the Ab ⁇ tuning element 9 can be moved axially within the inner conductor bore 8.
- FIG. 5A shows a longitudinal section through a further embodiment of the high-frequency filter 1 according to the invention, wherein in the inner conductor bore 8 of the first inner conductor 3, a socket 31 is inserted, in which the tuning element 9 is inserted, wherein between the socket 31 and the tuning element 9 is a frictional connection is present.
- the bushing 31 is preferably made of an elastic material.
- the bush 31 is preferably formed in one piece, with a multi-part design would also be possible.
- the tuning element 9 may also be formed of an electrically conductive material.
- the tuning element 9 preferably also consists of a dielectric material.
- the bush 31 is arranged within the inner conductor bore 8 of the first or second inner conductor 3, 7 positively or non-positively. Both ends of the socket 31, as shown in cross section in Figure 5B, an at least partially circumferential flange 33. This partially circumferential flange 33 is responsible for ⁇ for ensuring that the bush 31 axially non-domestic nerrenz the inner conductor hole 8 of the first inner conductor 3 is disposed. The first end of the bush 31 is supported with its at least partially circumferential flange 33 on a shoulder 32 of the inner conductor bore 8 of the first inner conductor 3 within this.
- the second end of the bushing 31 is supported with its ⁇ at least partially circumferential flange 33 on the outer side of the outer conductor housing 4 at the insertion opening 13 of the inner conductor bore 8 of the first inner conductor 3 from.
- the bush 31 is preferably pressed.
- the two inner conductors 3, 7 partially overlap, the tuning element 9 being formed in the overlapping region.
- the tuning element 9 is formed at the end 10, which is the furthest from the insertion opening 13, a receiving opening 30 is formed. Voltage in thenacöff- 30 of the tuning element 9, the second inner conductor 7 ⁇ immersed. It would of course also possible that the tuning element 9 is inserted into the inner conductor bore 15 of the second inner conductor 7, in which case the first inner ⁇ conductor 3 would dip into the receiving opening 30.
- Figure 6 shows an embodiment of the erfindungsge ⁇ MAESSEN high frequency filter 1, which has strong similarity to the embodiment of the high frequency filter 1 according to the invention, which is shown in Figure 5A wur- de. The only difference is that both inner conductors 3, 7 do not overlap.
- FIG. 7 shows a longitudinal section through a further exemplary embodiment of the high-frequency filter 1 according to the invention, wherein the bushing 31 is formed on the insertion opening 13 as an elastic ring.
- the tuning element 9 is again formed in the inner conductor bore 8 of the first inner conductor 3 in this case. Only the on ⁇ view is rotated.
- the tuning element 9 could, however, also be formed in the inner conductor bore 15 of the second inner conductor 7.
- the bushing 31 is preferably of an adhesive bond firmly to the ge ⁇ geninate the inner conductor bore 8 widened insertion - Opening 13 connected.
- the socket 31 is fixedly connected to the housing bottom 5, but it could just as firmly connected to the housing cover 6.
- Figure 8 shows a three-dimensional view of a compound, which is formed by the fastening device 12 and the coupling device 41 in the form of a bayonet closure.
- the tuning element 9 has at the end 10, which in the inserted state of the insertion opening 13 is closest to the fastening device 12.
- the fastening device 12 consists of a longitudinal slot and a transverse slot which are interconnected. This longitudinal slot and this transverse slot emerge preferably at two points on the Soum- receiving surface of the Abstimmelements 9.
- the Koppelein ⁇ device 41 preferably has a Be ⁇ rich with a widened diameter, in particular a radially outwardly directed pin at two locations.
- This radially outwardly pointing pin corresponds to the cylindrical coupling device 41 in such a way that the coupling device 41 can be introduced into the tuning element 9 designed as a hollow cylinder, wherein the pin of the coupling device 41 is guided stop-limited within the longitudinal slot and thus telescoping the coupling device 41 into the tuning element 9 allowed.
- a rotation of the coupling device 41 in the counterclockwise direction or in the opposite direction causes the bayonet closure to close.
- the coupling device 41 is connected to a gate Moscowmo ⁇ or with a linear motor.
- the Baj onettver gleich is a detachable connection. At least part of the coupling device 41 is located outside the insertion opening 13, but can be introduced into this and into the inner conductor bore 8.
- the longitudinal and the transverse slot could of course also be formed in the coupling device 41, in which case the pin would have to be formed in the tuning element 9.
- Figures 9A, 9B and 9C show various longitudinal ⁇ sections through an embodiment of the erfindungsge ⁇ MAESSEN high frequency filter 1, wherein the compound Zvi ⁇ rule of the fastening device 12 and the coupling device 41 is an interlock 45, and wherein by means of an adhesive 47, the tuning element 9 within the In ⁇ nenleiter bore 8 is fixed.
- FIG. 9A shows that one end of the coupling device 41, which comes into contact with the tuning element 9, is designed to be elastic and can be bent radially inwards, ie to the longitudinal axis, which passes through the coupling device 41.
- the end of the coupling device 41 is not bent in the direction of the longitudinal axis, but is in a relaxed state.
- At the outer periphery of the end of the coupling device 41 is at least one pin. Within the embodiment of Figure 9A, there are two pins. These two pins engage in the Attachment openings 20, as shown for example in Figures 3A and 4B.
- the coupling device can be introduced into the at least partially designed as a hollow cylinder tuning 9 41 and so firmly connected by means of a Smithver ⁇ bond that a Studentstra ⁇ supply of tensile or compressive forces delay SUC ⁇ gene can.
- a gap between the outer peripheral surface of the tuning ⁇ elements 9 and the inner wall of the inner conductor bore 8 is shown exaggerated.
- the tuning element 9 could of course also introduced into the inner conductor bore 15 of the second inner conductor 7 and will not be introduced as used herein in the in ⁇ nenleiter-bore 8 of the first inner conductor.
- an adhesive device 44 is shown, via which an adhesive 47 can be introduced into the insertion opening 13.
- the adhesive device 44 is preferably also part of the adjusting device.
- the tuning element 9 has been brought into the desired position within the inner conductor bore 8 of the first inner conductor 3 by means of the coupling device 41.
- the end of the coupling device 41, wel ⁇ ches communicates with the tuning element 9 is in contact tapers comparable, ie the longitudinal axis has ⁇ together quantitative attracted towards.
- the pins, which are attached to the side peripheral surface of the end of the coupling device 41, be ⁇ are now no longer in engagement with the fastening
- the coupling device 41 can be removed by axial displacement of the insertion opening 13 of the high-frequency filter 1.
- Figure 9C shows the coupling device 41, wherein the end has contracted in the direction of the longitudinal axis.
- the end of the coupling device 41 in the form of tweezers, on the 9. Thesesflä- che the widenings, so the pins are mounted, which engage in the mounting holes 20.
- the tips of the coupling device 41 can pull together until they touch each other.
- the adhesive 47 has already been introduced in order to connect the tuning element 9 to the inner wall of the inner conductor bore 8 of the first inner conductor 3.
- the end 10 of the Abstimmelements 9, which is closer to the insertion opening 13, preferably has a clotting ⁇ cal diameter, as the tuning element 9 has at the other end 11 or in the middle. This results in a cavity between the tuning element 9 and the inner wall of the inner conductor bore 8 of the first inner conductor 3, in which the adhesive 47 introduced ⁇ who can.
- FIG 10 shows a further embodiment of he inventive ⁇ high frequency filter 1, wherein the connection between the fastening means 12 on the tuning member 9 and the coupling means 41 is a screw 50th
- the tuning element 9 at the end 10 which is closer to the insertion opening 13, in which the end of the Koppe ⁇ l sensible 41, which comprises an external thread, a ⁇ can engage a female thread. It would also be possible for the tuning element 9 to have an external thread and to be correspondingly connected to the coupling device 41.
- FIG 11 shows a further embodiment of he inventive ⁇ high frequency filter 1, wherein the Verbin ⁇ connection between the tuning element 9, on the fastening means 12, and the coupling device 41 is made via a vacuum.
- the end of the coupling device 41 which is in contact with the tuning element 13, vacuum nozzles 60, which are capable of sucking air. These vacuum nozzles 60 are in contact with a corresponding engagement surface on the fastening device 12 of the tuning element 9.
- a clearance fit should be present between the tuning element 9 and the inner conductor bore 8 of the first inner conductor 3.
- the gap between the tuning element 9 and inner conductor bore 8 of the first inner conductor 3 is finally filled with the adhesive 47.
- an adhesive 47 with suitable viscosity must be used.
- the tuning element 9 is nozzle to the vacuum ⁇ via the vacuum kept 60 so that movement of the nozzle via a vacuum 60, the tuning element 9 can be used for voting closer to the insertion opening. 13 In order to move the tuning element 9 farther from the insertion opening 13, the vacuum nozzles 60 press mechanically against the fastening device 12 and thus push the tuning element 9 further into the resonator 2.
- the fastening device 12 and the tuning element 9 are preferably formed in one piece.
- Figure 12 shows a method for adjusting the high-frequency filter of the invention 1.
- the high frequency filter is closed at this time. This means that the corresponding input terminals and the housing cover 6 are placed.
- the high frequency filter 1 is thereby closed high frequency tight. For this purpose, the screw are tightened.
- connection between the fastening device 12 of the tuning element 9 is made with the coupling device 41 of the adjusting device.
- the coupling device 41 of the adjusting device it may, as already set forth in order to act 40 or a Bajonettverbin ⁇ dung to a screw 50 or a latch 45 or to a vacuum connection.
- the tuning element 9 is inserted into the inner conductor bore 8, 15 of the first or second inner conductor 3, 7. This insertion can be done by pressing or by shooting by means of compressed air.
- the steps Si, S 2 , S 3 may be performed in any order. Following this, the process step S4 out ⁇ leads. Within the process step S4, the filter properties are measured. This includes, for example, the measurement of the resonance frequency.
- the process step is carried out ⁇ S6.
- method steps S4 and S5 are repeated until the desired filter properties are achieved.
- step S 7 is carried out in which the tuning element 9 is fixed by means of egg ⁇ ner adhesive bond in the inner conductor bore 8, 15 of the first or second inner conductor 3, 7.
- connection between the coupling device 41 and the fastening device 12 can be separated again and the coupling device 41 can be removed from the insertion opening 13.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102015008894.7A DE102015008894A1 (de) | 2015-07-09 | 2015-07-09 | Gewindelose Abstimmelemente für Koaxialresonatoren und Verfahren zur Abstimmung derselben |
| PCT/EP2016/066364 WO2017005926A1 (de) | 2015-07-09 | 2016-07-08 | Gewindelose abstimmelemente für koaxialresonatoren und verfahren zur abstimmung derselben |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3320578A1 true EP3320578A1 (de) | 2018-05-16 |
| EP3320578B1 EP3320578B1 (de) | 2019-10-30 |
Family
ID=56372914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP16736484.3A Active EP3320578B1 (de) | 2015-07-09 | 2016-07-08 | Gewindelose abstimmelemente für koaxialresonatoren und verfahren zur abstimmung derselben |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US10651529B2 (de) |
| EP (1) | EP3320578B1 (de) |
| CN (1) | CN107851877B (de) |
| DE (1) | DE102015008894A1 (de) |
| ES (1) | ES2767719T3 (de) |
| WO (1) | WO2017005926A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3547440A1 (de) * | 2018-03-27 | 2019-10-02 | Nokia Solutions and Networks Oy | Resonator für hochfrequenzsignale |
| WO2022045754A1 (ko) * | 2020-08-28 | 2022-03-03 | 주식회사 케이엠더블유 | 안테나용 캐비티 필터 |
| EP4239786A1 (de) | 2022-03-03 | 2023-09-06 | Nokia Solutions and Networks Oy | Frequenzanpassbarer filter |
| US20250096447A1 (en) * | 2023-09-20 | 2025-03-20 | Nokia Solutions And Networks Oy | Resonator for filters |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US552654A (en) * | 1896-01-07 | Magazine-camera | ||
| DE1061848B (de) | 1956-04-26 | 1959-07-23 | Saba Gmbh | Abstimmbarer Leitungsresonanzkreis in Form einer konzentrischen Doppelleitung |
| SU552654A1 (ru) * | 1975-02-07 | 1977-03-30 | Пензенский Политехнический Институт | Полосовой сверхвысокочастотный фильтр |
| DE2620769A1 (de) * | 1976-05-11 | 1977-11-17 | Kathrein Werke Kg | Ueber einen grossen bereich abstimmbares filter |
| FR2488056A1 (fr) | 1980-07-29 | 1982-02-05 | Thomson Csf | Resonateur accordable et circuit hyperfrequence comportant au moins un tel resonateur |
| CN200986958Y (zh) | 2006-01-20 | 2007-12-05 | 芯通科技(成都)有限公司 | 改进的多腔同轴滤波器 |
| WO2010019897A1 (en) * | 2008-08-15 | 2010-02-18 | Marketshare Partners Llc | Automatically prescribing total budget for marketing and sales resources and allocation across spending categories |
| US8269582B2 (en) | 2009-10-30 | 2012-09-18 | Alcatel Lucent | Tuning element assembly and method for RF components |
| CN202025836U (zh) | 2009-11-13 | 2011-11-02 | 鸿富锦精密工业(深圳)有限公司 | 空腔滤波器 |
| DE102010056048A1 (de) * | 2010-12-23 | 2012-06-28 | Kathrein-Werke Kg | Abstimmbares Hochfrequenzfilter |
| FI123439B (fi) * | 2011-07-06 | 2013-04-30 | Powerwave Finland Oy | Säädettävä resonaattorisuodin ja menetelmä resonaattorionteloiden välisen kytkennän säätämiseksi |
| DE102012020979A1 (de) | 2012-10-25 | 2014-04-30 | Kathrein-Werke Kg | Abstimmbares Hochfrequenzfilter |
| US9614265B2 (en) * | 2013-08-02 | 2017-04-04 | Electronics And Telecommunications Research Institute | Variable high frequency filter device and assembly |
-
2015
- 2015-07-09 DE DE102015008894.7A patent/DE102015008894A1/de not_active Withdrawn
-
2016
- 2016-07-08 US US15/742,743 patent/US10651529B2/en not_active Expired - Fee Related
- 2016-07-08 CN CN201680040441.1A patent/CN107851877B/zh not_active Expired - Fee Related
- 2016-07-08 WO PCT/EP2016/066364 patent/WO2017005926A1/de not_active Ceased
- 2016-07-08 EP EP16736484.3A patent/EP3320578B1/de active Active
- 2016-07-08 ES ES16736484T patent/ES2767719T3/es active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2017005926A1 (de) | 2017-01-12 |
| CN107851877A (zh) | 2018-03-27 |
| US20180212298A1 (en) | 2018-07-26 |
| DE102015008894A1 (de) | 2017-01-12 |
| EP3320578B1 (de) | 2019-10-30 |
| ES2767719T3 (es) | 2020-06-18 |
| US10651529B2 (en) | 2020-05-12 |
| CN107851877B (zh) | 2020-05-19 |
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