EP3120409A1 - Système de radiation horizontale bloquée, en particulier découplage à tension continue et/ou à basse fréquence sur un tronçon haute fréquence en utilisant un système à radiation horizontale bloquée - Google Patents

Système de radiation horizontale bloquée, en particulier découplage à tension continue et/ou à basse fréquence sur un tronçon haute fréquence en utilisant un système à radiation horizontale bloquée

Info

Publication number
EP3120409A1
EP3120409A1 EP15708728.9A EP15708728A EP3120409A1 EP 3120409 A1 EP3120409 A1 EP 3120409A1 EP 15708728 A EP15708728 A EP 15708728A EP 3120409 A1 EP3120409 A1 EP 3120409A1
Authority
EP
European Patent Office
Prior art keywords
pot
locking
low
locking pot
frequency
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
Application number
EP15708728.9A
Other languages
German (de)
English (en)
Other versions
EP3120409B1 (fr
Inventor
Ingo Mayr
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Kathrein Austria GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kathrein Austria GmbH filed Critical Kathrein Austria GmbH
Publication of EP3120409A1 publication Critical patent/EP3120409A1/fr
Application granted granted Critical
Publication of EP3120409B1 publication Critical patent/EP3120409B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/20—Frequency-selective devices, e.g. filters
    • H01P1/2007—Filtering devices for biasing networks or DC returns

Definitions

  • Locking pot in particular DC and / or coupling on an RF path using e Sperrtopfes
  • the invention relates to a locking pot according to the preamble of claim 1 and a DC and / or LF outcoupling on an RF path using a barrier pot.
  • reception and transmission technology it is often common on a reception and / or transmission line not only to send or to be received high-frequency signals (hereinafter referred to as short RF signals), but on this route also in the switched antennas, Amplifiers, preamplifiers, etc. integrated, active components in addition to DC supply to the power supply and / or at least also low-frequency (NF) AC voltages (for example, pilot tones) to control and regulate the components over the route.
  • NF low-frequency
  • additional devices provided on the reception or transmission paths such as in particular high-frequency filters, are often unable to pass, for example, the high-frequency signals required for the power supply additionally DC voltage and / or low-frequency AC voltage, for example for the mentioned pilot tones, and transfer.
  • a conventional technique therefore involves a bypass in the form of a decoupling or bypass path, via which one coupled on the high-frequency path with transmitted DC voltage or a low-frequency AC voltage and on another
  • Place can be coupled into the high-frequency link again.
  • a high-frequency filter or a duplexer high-frequency link is bypassed or bridged.
  • solutions were hitherto known in which, for example, a coil or a ⁇ / 4 line or one or more printed circuit boards were used with multi-stage Tiefpassfil ⁇ tern, which were usually discrete.
  • An improved DC and / or low-frequency bypass for a high-frequency link in particular for high-frequency filters, duplex or other electrical / electronic devices, has become known, for example, from EP 1 932 205 B1.
  • This known solution is characterized by the fact that the corresponding DC voltage and / or low-frequency voltage extraction and bypass is much easier to assemble than conventional solutions and can be dismantled in the event of repair work.
  • a locking pot is used, which is housed in a corresponding recess of a housing.
  • the locking pot used is housed in a corresponding hole in a grounded housing.
  • a capacitor is formed between the outer wall of the blocking pot and the inner wall of the housing lying on the ground, which additionally acts as a low-pass filter.
  • a spur line is used with respect to a coaxial signal path, wherein the outer conductor of the spur line is galvanically connected to the outer conductor of the coaxial high-frequency path and is grounded.
  • the end of the stub is closed by a plate also lying on ground, which has a bore through which the inner conductor of the stub is performed to the outside and separated by a dielectric sleeve of the outer conductor of the stub.
  • a turntable is also in turn arranged, which is formed by the axially through the locking pot through extended inner conductor stub at the passage bore of the end plate of the outer conductor of the stub also a capacity that forms a low pass.
  • HF branch high-frequency branch
  • LF branch DC voltage and / or LF decoupling arrangement
  • the object is achieved according to the invention with respect to the locking pot according to the claim 1 and with respect to the decoupling arrangement according to the features specified in claim 11.
  • Advantageous embodiments of the invention are specified in the subclaims.
  • the solution according to the invention is characterized in that an additional second locking pot is provided in an open locking pot, which usually comprises a hollow cylindrical wall, a bottom connected thereto and an inner conductor running axially from the bottom to the hollow cylindrical wall, which is arranged inside the first locking pot ,
  • the further or second locking pot is arranged with the reverse orientation in the first locking pot, that is arranged aligned with its open end side immediately adjacent to the bottom of the first locking pot.
  • the invention provides that in an outer barrier pot, a smaller diameter inner baffle is mounted in an opposite orientation, e.g. is soldered.
  • the inner locking pot is arranged at least a small distance from the outer locking pot, so that the outer or peripheral walls, i.
  • the hollow-cylindrical outer conductors are not in galvanic contact.
  • the open edge of the inner locking pot is arranged at least a short distance from the bottom of the first locking pot.
  • the length of the inner locking pot is less than the total height of the outer locking pot, so that the bottom of the inner locking pot ends below the opening plane of the outer locking pot.
  • the inner locking pot is penetrated by the inner conductor.
  • the bottom of the inner locking pot is soldered to the inner conductor, whereby the inner locking pot can ultimately be maintained.
  • the length of the inner locking pot in relation to the outer locking pot can ultimately the frequency range in which the inner locking pot to work, influenced and / or adjusted.
  • the blocking pot according to the invention is used within the framework of a decoupling arrangement according to the invention in which, for example, the blocking pot is placed in the useful band of an HF filter, a considerable improvement in decoupling can thereby be achieved.
  • a complementary provided and connected to the blocking pot in series capacitor can be used (as is generally known in the prior art). Because a capacitor connected in series has already been used in the prior art to improve the decoupling. However, this decoupling using the additional capacitor is further improved by using the Doppelsperropfes invention.
  • a dielectric material which serves to center the inner locking pot in relation to the outer locking pot.
  • this is not absolutely necessary.
  • the inner baffle may be coated with an electrically insulating material to be centered in the outer baffle.
  • a galvanic bond between the inner and outer locking pot is avoided.
  • the connection of the inner locking pot on the inner conductor of the outer locking pot is preferably carried out by means of soldering.
  • a plug-in and / or press connection takes place, for example, between the bottom of the inner blocking pot and the inner conductor of the outer blocking pot passing through the bottom of the inner blocking pot.
  • a galvanic connection can also be realized by, for example, connecting the inner blocking pot to the associated inner conductor by using an electrically conductive adhesive.
  • Figure 1 a schematic axial section through a locking pot according to the invention
  • Figure 2 is a schematic plan view along the section line I-I in Figure 1;
  • FIG. 3 shows a schematic representation of a duplexer with two HF branches, in each of which a bypass path is provided for DC and / or low-frequency bypassing and decoupling;
  • Figure 4 is a schematic axial section through a first embodiment of a bypass route;
  • FIG. 5 a plan view of the exemplary embodiment according to FIG. 4;
  • FIG. 6 a spatial representation of the exemplary embodiment according to FIGS. 4 and 5;
  • FIG. 7 shows a schematic axial section through a further exemplary embodiment in the form of only one decoupling path
  • FIG. 8 shows a corresponding plan view of the exemplary embodiment according to FIG. 7.
  • FIG. 9 is a perspective view of the embodiment of FIG. 7 and FIG. 8.
  • FIGS. 1 and 2 show a locking pot arrangement according to the invention, specifically with a first blocking pot ST1 and a second blocking pot ST2.
  • the blocking pot is installed in an electrically conductive housing 17 in a recess 19a formed there.
  • the locking cup is cylindrical, i. designed hollow cylindrical, which is not mandatory.
  • the housing wall 17a of the housing 17, unlike the representation according to FIG. 1, can be made much thinner, ie have a material thickness which corresponds or can correspond, for example, to the hollow cylindrical wall of the first or second locking pot ST1 or ST2.
  • the recess 19a is a preferably applied to the inner wall 19c of the recess 19a insulation Layer ST-01 inserted, which is also formed hollow cylindrical in hollow cylindrical configuration of the recess 19a. It comprises at least bottom sections ST-02, for example an annular bottom section ST-02, which ensures that the blocking pot STl inserted into this insulating layer ST-01 both with respect to its peripheral surface and its bottom surface (preferably formed of or coated with an electrically conductive material is) is electrically isolated from the likewise electrically conductive housing 17.
  • the inventive locking pot assembly is used with the first and second locking pot STL, ST2.
  • the first or outer lock pot ST1 comprises, as usual, a lock pot outer conductor ST-05, which is preferably formed in a hollow body, i. in the embodiment shown hollow cylinder-shaped, in relation to a central axis ST-07 passing through the locking pot arrangement.
  • the first and second locking pot which preferably also made of electrically conductive material, in particular metal or at least - if they are formed from a dielectric - are coated with a corresponding conductive layer are constructed so that the locking pot outer conductor ST-05 in the Lock pot base ST-09 preferably integrally merges.
  • the blocking pot inner conductor ST-11 runs parallel and preferably concentric with the central axis ST-07.
  • the first or outer locking pot STl is electrically connected to a feed point ST-13 at its upper peripheral edge ST- 15, ie at its opening side ST- 17 with an input line 7, whereas the free end of the inner conductor ST-L with an output or connecting line 9 or 33 (which will be discussed later) is electrically connected.
  • a second insulating layer ST-21 which also comprises a bottom section ST-21b in addition to a peripheral section ST-21a, is now preferably inserted in the interior ST-19 of the first blocking pot ST1 in its bottom region.
  • the opening side ST-27 of the second blocking pot ST2 which is aligned with its opening direction in the opposite direction to the first blocking pot ST1 and is arranged within the first blocking pot, ie in the interior ST-19 of the first blocking pot ST1, rests thereon.
  • the inner conductor ST-11 of the first locking pot STl passes through the bottom ST-29 of the second locking pot (preferably in the form of a formed in the bottom ST-29 of the second locking pot ST2 bore ST-30).
  • the bottom of the second blocking pot ST-19 is preferably connected by means of a soldering ST-22 on the overhead outer side (which is easily accessible for mounting purposes) with the locking pot inner conductor ST-11 electrically-galvanically connected.
  • this electrical-galvanic connection may already be sufficient to electrically connect the second blocking pot ST2 not only to the first blocking pot ST1 but also to hold it mechanically.
  • the mentioned second insulating layer ST-21 serves as an additional holding and fixing device to also ensure that the first and second locking pot are galvanically separated from each other, so are kept at a distance.
  • the second locking pot can not necessarily be held by soldering, but for example also by a mechanical, non-positive and / or positive connection, for example also by an electrically conductive adhesive which may have some elasticity (instead of the one mentioned above) Soldering ST-22).
  • the hollow body-shaped wall i. the baffle outer conductor ST-25, whose cross-sectional shape preferably corresponds to the cross-sectional shape of the Sperrtopf-Außenleiter ST-05, a dimensioning on, which is smaller than the outer locking pot ST1.
  • the dimensioning of the two locking pots ST1, ST2 is selected so that between the first inner or second Sperrtopf- outer conductor ST-25 and the outer potting outer conductor ST- 05 to the central axis ST-07 and the inner conductor ST-11 transversely and in particular vertically extending distance, in particular lateral or radial distance SA is formed.
  • the inner or second locking pot ST2 has an axial length AL2 which is preferably smaller than the one axial length ALI of the first locking pot.
  • the opening edge ST-35 of the second locking pot ST2 lies at a distance XA in front of the bottom ST-09 of the first locking pot ST1.
  • FIG. 1 shows a schematic diagram of a block diagram for a duplexer comprising two bandpass filters 3 and 5, for example a first bandpass of 806 MHz to 960 MHz and, for example, a second bandpass of 1,710 MHz to 2,170 MHz.
  • a duplexer formed in this way thus has, for example, two input-side HF connections and / or corresponding connection connections 107, namely 107a and 107b, and a third output-side HF connection merging the two band-pass paths and / or a corresponding connection connection 109, at which usually one Antenna is connected.
  • the mentioned input-side HF connections 107a, 107b would serve as transmit inputs and the third RF connection 109 as transmit output, whereas in the case of reception the third RF connection 109 would serve as receive input and the other two ports 107a and 107b could be referred to as receive outputs.
  • a NF and DC bypass 13 is provided for each bandpass 3 and 5, which is referred to below as a bypass or bypass path or partially also as a decoupling section 13.
  • a DC power supply for various devices, amplifiers, etc. guaranteed and / or eg a low-frequency signal transmission, for example in the form of so-called pilot tones, be possible to control and regulate individual components be needed (for example, in the DiSEq technology).
  • the bypass or decoupling path 13 comprises, in addition to a decoupling or bypass circuit 13 ', an input line 7 on the input side, ie an input line 7a or 7b in the embodiment shown, and an output line 9 on the output side, ie in the exemplary embodiment shown an output line 9a and 9b, respectively.
  • the input lines 7 at a connection or branching point 117 with the RF path 3 and the output lines 9 at a connection point 117 'with the respective RF path 3 and 5 are electrically connected, in the embodiment shown electrically galvanic.
  • Such a bypass or decoupling section 13 is shown in more detail with reference to FIGS. 4 to 6, as is known in principle from EP 1 932 205 B1.
  • the bypass path 13 comprises a housing 17 (which is grounded), which consists of electrically conductive material, usually a corresponding metal alloy or at least comprises a conductive outer shell or coating, for example Plastic is made.
  • a housing 17 is provided in which the high-frequency path in the form of at least one or more bandpasses 3, 5 is realized with.
  • only one housing 17 is shown for the sake of simplicity and clarity, which includes the bypass section 13 and not also the additional radio-frequency link. For example, to form a high-frequency filter, duplexer, etc. with urajant.
  • two hollow-cylindrical bores or recesses 19a and 19b are thus introduced into the housing 17 from one side.
  • two hollow-cylindrical capacitor walls are formed, which are virtually the first plates, that is to say the first capacitor halves 20a and 20b of a capacitor 27a or 27b described below in more detail.
  • a dielectric ST-01 i. 23a and 23b inserted, for example in the form of a cylindrical dielectric, which may be formed as a plastic injection molded part.
  • This is preferably cup-shaped and can be used up to the lower bottom 21a and 21b in the hollow cylindrical holes 19a and 19b.
  • 27b not designed as a pure hollow cylinder, but as cylinder pots 29a and 29b, namely in coaxial design with a respective associated inner conductor 31a and 31, which extend from the respective pot bottom ST-09, ie 30a and 30b and extend in the embodiment shown to the respective upper edge ST-15, ie 32a and 32b of the associated cylinder pot 29a, 29b.
  • the cylinder heads 29a, 29b which are provided with lateral offset in the housing 1 in corresponding holes 19a, 19b, the same design.
  • Both inner conductors ST-11, i. 31a, 31b, so both cylinder pots 29a, 29b are interconnected via a, hereinafter also partially referred to as a connecting line 33 line 33.
  • the length of this line can be arbitrary.
  • the input line 7, 7a thus forms an input-side HF connection connection which branches off from a connection or branching point 117 of the HF path 3 shown in FIG.
  • the input line 7, 7a in this case represents a transmission line whose length is preferably ⁇ / 4.
  • the input line 7a thus preferably has a length which corresponds to the mean wavelength of a frequency band to be transmitted on the associated RF link. At least ⁇ is chosen such that the value for this corresponds to a wavelength for a frequency, which lies within the frequency band to be transmitted on the high-frequency link.
  • an output line 9 'representing the output-side HF connection that is to say the output-side HF connection connection 9
  • This RF connection 9 and the corresponding output line 9 in this case has a length which corresponds to ⁇ / 4, wherein ⁇ preferably again corresponds to the mean wavelength of the frequency band, which is to be transmitted on the associated RF link. At least ⁇ should be chosen so that the value for this purpose corresponds to a wavelength for a frequency that is within a frequency band to be transmitted on the RF link.
  • the double locking pot arrangement with the first and second blocking pot ST1 and ST2 is also realized in the decoupling path according to FIGS. 4 to 7, specifically with a structure as explained in principle with reference to FIGS. 1 and 2.
  • the input and the output line 7 and 9 could be led out laterally below the upper level of the boundary wall 17 'of the housing.
  • the connecting line 33 is laid in a housing recess 219 (FIG. 6) which connects the two cylindrical bores 19a and 19b in the region of the upper boundary wall 17 'of the housing 17 in a slot shape, so that this line 33 does not project beyond the upper boundary plane 17 'of the housing.
  • the last-mentioned measures can also be designed differently.
  • a DC voltage for the power supply and / or a low-frequency (NF) AC voltage (for example pilot tones) can therefore be transmitted parallel to a high-frequency path (for example bandpass path 3, 5 in FIG. 3)
  • the hollow cylindrical condenser wall 20a or 20b forms, for example, the respectively first "plate” of a condenser 27a or 27b thus formed.
  • the second "plate” of the capacitor is formed by the electrically conductive hollow cylinder 25a or 25b inserted into the hollow cylindrical bores 19a, 19b, whereby both "plates” are formed by the hollow plate.
  • Dielectric 23a, 23b are electrically galvanically separated from each other.
  • Corresponding snap-action and / or latching devices or at least sufficient clamping measures or devices can therefore be provided and / or formed on the preferably made of plastic dielectric 23a, 23b in interaction with the corresponding recess in the housing.
  • the mentioned capacitors 27a, 27b form a low pass to generate a high frequency short circuit with the conductive housing 17, which is usually grounded. Nevertheless, the capacitors 27a, 27b, which are referred to as high-frequency short-circuiting, are not yet sufficient for optimal decoupling from the RF branch, since an excessively large residual signal or excessive residual signal intensity would still be transmitted via this bypass path.
  • a blocking pot 127a, 127b is respectively integrated into the capacitors 27a, 27b according to the described exemplary embodiment.
  • This blocking pot 127a, 127b is formed in each case by the cylinder pot 29a, 29b with the associated, concentrically arranged inner conductor 31a, 31b, which is connected to the respective bottom 30a, 30b of the relevant cylinder pot 29a, 29b.
  • the connecting line 7 or 9 is then directly on this locking pot 127a and 127b connected and thus fulfills the decoupling.
  • the axial length (especially the axial length inside the cylinder pot and thus the axial length of the inner conductor 31a, 31b) is preferably usually proportional to 1 / VeR l / e R and the other factor K / 4, where s R is the corresponding Dielectric constant of the inner dielectric used is that in the embodiment shown preferably consists of air but does not have to consist of air. In this case, another dielectric may also be inserted, ⁇ preferably represents the mean wavelength of the frequency band to be transmitted in the HF ring.
  • the blocking pot 127a, 127b By using the blocking pot 127a, 127b thus formed, a short circuit occurs via the capacitor 27a, 27b thus formed generated in the bottom region 20a, 20b of the locking pot, said short circuit is transferred to the open end of the locking pot 127a, 127b in an idle ( ⁇ / 4 electrical length).
  • the axial length of the locking pots or the inner conductor of the locking pots need not necessarily be ⁇ / 4, but may also deviate from it and have completely different values. Decision-relevant is the length of the input line 7, 7a and 7b as well as the length of the output line 9, ie in the embodiment shown in FIG 3 of the output line 9a and 9b.
  • the construction shown thus ensures that, for example, the short circuit at the first blocking pot 127a, ie the short circuit at the connection point of the so-called ⁇ / 4 input line with the blocking pot 127a (at the soft soldering point 36) into an open circuit at the connection point 117 to the HF 3 is transformed, so that thereby the RF filter by the decoupling or bypass path undergoes no influence or change.
  • the second half of the symmetrical structure is based on a connection point 117 'of the HF path, via a downstream ⁇ / 4 line 9, 9a, which leads to the downstream cylinder pot 29b, ie to the blocking pot 127b. Both locking devices fe are then connected to each other via the mentioned line 33.
  • the basically symmetrical structure, at least in functional terms, is indicated with respect to the plane of symmetry S in FIG.
  • each short-circuit capacitor 27a, 27b also forms the illustrated blocking pot.
  • ⁇ should correspond to a frequency within a frequency band, which is transmitted to the parallel high frequency branch.
  • ⁇ should correspond to the mean wavelength of the corresponding band transmitted on the radio-frequency branch.
  • L ⁇ / 4 + ⁇ / 16 (ie 3 ⁇ / 16 ⁇ L ⁇ 5X / 16) where X is again preferably the mean wavelength of the freewheel to be transmitted in the HF path. quence band or at least one wavelength within this RF frequency band.
  • this transformation path 7 or 9 can also be extended by K / 2 in order to obtain the same results.
  • connecting lines 7 and 9 which were also referred to as input or output lines 7 and 9, do not necessarily have to be straight, but may for example also be arcuate or in particular in the form of a coil. Again, the length of the coil, so the wire used for the coil, preferably have the above values.

Landscapes

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

Abstract

Selon l'invention, un ensemble de systèmes de radiation horizontale bloquée amélioré se caractérise entre autres par les caractéristiques qui suivent : - un deuxième système de radiation horizontale bloquée (ST2) est disposé dans l'espace intérieur (ST-19) du premier système de radiation horizontale bloquée (ST1) ; - le deuxième système de radiation horizontale bloquée (ST2) comporte, sur une de ses faces frontales, une base (ST-15) et, sur sa face frontale opposée, une face d'ouverture (ST-27) ; le deuxième système de radiation horizontale bloquée (ST2), pivoté de 180° par rapport au premier système de radiation horizontale (ST1), avec sa base (ST15) et sa face d'ouverture (ST-27), est agencé dans l'espace intérieur (ST-19) de celui-ci ; un espacement latéral (SA) s'étendant de manière transversale ou de manière perpendiculaire par rapport à l'axe central (ST-07) est formé entre le deuxième conducteur extérieur (ST-25) de système de radiation horizontale bloquée et le premier conducteur extérieur (ST-05) de système de radiation horizontale bloquée, par l'intermédiaire duquel espacement le deuxième système ou système intérieur de radiation horizontale bloquée (ST2) est disposé de manière séparée galvaniquement du premier système de radiation horizontale bloquée (ST1) ; et - le premier et le deuxième système de radiation horizontale bloquée (ST1, ST2) sont reliés uniquement par l'intermédiaire d'une liaison galvanique entre la base (ST-29) du deuxième système de radiation horizontale bloquée (ST2) et le conducteur intérieur (ST-03), qui traverse la base (ST-29) du deuxième système de radiation horizontale bloquée (ST2).
EP15708728.9A 2014-03-20 2015-02-26 Système de radiation horizontale bloquée, en particulier découplage à tension continue et/ou à basse fréquence sur un tronçon haute fréquence en utilisant un système à radiation horizontale bloquée Active EP3120409B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014004008.9A DE102014004008A1 (de) 2014-03-20 2014-03-20 Sperrtopf, insbesondere Gleichspannungs- und/oder NF-Auskopplung auf einer HF-Strecke unter Verwendung eines Sperrtopfes
PCT/EP2015/000450 WO2015139812A1 (fr) 2014-03-20 2015-02-26 Système de radiation horizontale bloquée, en particulier découplage à tension continue et/ou à basse fréquence sur un tronçon haute fréquence en utilisant un système à radiation horizontale bloquée

Publications (2)

Publication Number Publication Date
EP3120409A1 true EP3120409A1 (fr) 2017-01-25
EP3120409B1 EP3120409B1 (fr) 2019-08-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP15708728.9A Active EP3120409B1 (fr) 2014-03-20 2015-02-26 Système de radiation horizontale bloquée, en particulier découplage à tension continue et/ou à basse fréquence sur un tronçon haute fréquence en utilisant un système à radiation horizontale bloquée

Country Status (4)

Country Link
EP (1) EP3120409B1 (fr)
DE (1) DE102014004008A1 (fr)
ES (1) ES2753354T3 (fr)
WO (1) WO2015139812A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2392664A (en) * 1943-12-23 1946-01-08 Gen Electric Ultra high frequency filter
US3197720A (en) * 1961-10-17 1965-07-27 Gen Electric Transmission line having frequency reject band
US4945318A (en) * 1988-03-01 1990-07-31 Labthermics Technologies, Inc. Low frequency isolator for radio frequency hyperthermia probe
IT1275418B (it) * 1995-06-02 1997-08-05 Forem Spa Polarizzatore dc per alte potenze rf e bassa intermodulazione
DE102005054916B3 (de) * 2005-11-17 2007-07-12 Kathrein-Austria Ges.M.B.H. Gleichspannungs- und/oder Niederfrequenz-Auskopplung aus einer HF-Strecke

Also Published As

Publication number Publication date
DE102014004008A1 (de) 2015-09-24
ES2753354T8 (es) 2020-06-01
EP3120409B1 (fr) 2019-08-07
ES2753354T3 (es) 2020-04-08
WO2015139812A1 (fr) 2015-09-24

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