EP2489095B1 - Coupleur d'antenne - Google Patents

Coupleur d'antenne Download PDF

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Publication number
EP2489095B1
EP2489095B1 EP10747815.8A EP10747815A EP2489095B1 EP 2489095 B1 EP2489095 B1 EP 2489095B1 EP 10747815 A EP10747815 A EP 10747815A EP 2489095 B1 EP2489095 B1 EP 2489095B1
Authority
EP
European Patent Office
Prior art keywords
high frequency
circuit board
printed circuit
antenna
conductor
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.)
Active
Application number
EP10747815.8A
Other languages
German (de)
English (en)
Other versions
EP2489095A1 (fr
Inventor
Igor Dremelj
Heinz Hohl
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.)
Landis and Gyr AG
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Landis and Gyr AG
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Publication date
Application filed by Landis and Gyr AG filed Critical Landis and Gyr AG
Priority to PL10747815T priority Critical patent/PL2489095T3/pl
Priority to EP10747815.8A priority patent/EP2489095B1/fr
Publication of EP2489095A1 publication Critical patent/EP2489095A1/fr
Application granted granted Critical
Publication of EP2489095B1 publication Critical patent/EP2489095B1/fr
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/12—Coupling devices having more than two ports
    • H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
    • H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
    • H01P5/184—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers the guides being strip lines or microstrips
    • H01P5/187—Broadside coupled lines
    • 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

Definitions

  • the present invention relates to the field of radio frequency line technology; It relates to an antenna coupler for connecting a high-frequency antenna according to the preamble of claim 1.
  • an antenna In many technical devices that contain a high-frequency transmitter or receiver and at the same time are galvanically exposed to an earth-related high voltage (mains voltage), an antenna is to be connected via a coaxial cable.
  • the corresponding antenna and the coaxial cable must be galvanically isolated from the device, otherwise there is danger to life when touched.
  • the problem has been solved for example by two parallel arranged dipole antennas in the device, in which, however, by the unwanted radial radiation, a high transmission loss of at least 6dB for the useful signal.
  • the decoupled power was fed into a coaxial cable to be routed to a remote antenna.
  • a known decoupling via capacitors ( US4987391 ) has either a low withstand voltage (1 kV) or a high transmission loss, because a high design resistance of the capacitors a large design is a prerequisite, which has a negative effect on the damping due to high inductive reactance and unwanted radiation.
  • An antenna coupler for connecting a high-frequency antenna to a galvanically operable with a high voltage device comprising a multilayer printed circuit board with conductor planes which are electrically isolated from each other in the depth direction (z) of the multilayer printed circuit board, at least one to be coupled or coupled to the high-frequency antenna first High-frequency line in a first conductor level, at least one second high-frequency line to be coupled or coupled to the device in a second conductor level of the multilayer printed circuit board, wherein the multi-layer printed circuit board has an electrically insulating PCB core layer, wherein the first and second conductor level extend on the same side of the PCB core layer, wherein the device side is arranged to be coupled or coupled second radio-frequency line at a greater distance from the PCB core layer than the first radio-frequency line, and wherein the antenna coupler a electrically conductive shield structure extending in part on the opposite other
  • the object underlying the invention is achieved by the totality of the features of claim 1. Further embodiments are the subject of the dependent claims 2 to 7.
  • the antenna coupler according to the invention for galvanic isolation of the antenna from the transmitter / receiver achieves a high insulation voltage of up to 12kV DC and AC line voltage, but at the same time an extremely low transmission loss for the high frequency useful signal .
  • the antenna coupler according to the invention can achieve a particularly low transmission loss within desired frequency limits, since the coupling lines, so the first and second high-frequency line, can be arranged with a very small distance from each other in the depth direction of the multilayer printed circuit board.
  • the commonly used layer thickness of the multilayer printed circuit board can be used as the distance between the coupling lines. A distance of 0.3 mm, for example, can be realized.
  • There is a large usable high-frequency bandwidth can be more than one octave, for example, from 800 MHz to 2200 MHz. It can be produced inexpensively by using multilayer printed circuit boards, for example 2-fold or 4-fold multilayer printed circuit boards.
  • the antenna coupler is thus preferably designed as a multilayer printed circuit board.
  • the coupler is formed of two appropriately coupled high frequency lines.
  • the geometric arrangement of the metal surfaces (in particular copper surfaces) of the high-frequency lines forms the coupler.
  • the distances between the copper surfaces and the electrically insulating carrier material of the multilayer printed circuit board provide the necessary insulation voltage strength.
  • the high-frequency lines are two coplanar lines which are embedded in two different layers of the multilayer printed circuit board one above the other. These lines preferably each consist of at least one strip line for the inner conductor and at least two strip lines for the outer conductor.
  • the thickness of the dielectric is preferably selected such that a voltage resistance required in the respective application is achieved.
  • the terminals of the coplanar leads to the surface of the circuit board hold a required for the desired dielectric strength leakage current path.
  • the inner layer of the circuit board typically antenna side
  • coplanar line beyond the coupling zone with modified geometry eg changed conductor width and / or conductor distances extended before contacting the surface is made.
  • the preferred embodiment of the inventive antenna coupler is designed as a one-sided shielded coupling structure.
  • the device-side coplanar line is supplemented by an additional shielding surface connected to PCB vias.
  • the shielding surface is arranged in such a way that, together with the strip conductors of the device-side coplanar line, it partially encloses the coaxial line, that is to say the antenna-side coplanar line. In this way, at least the screen side is less sensitive to interference from metal parts inside the device.
  • insulating support material of the multilayer printed circuit board for example, the known material FR-4, a glass fiber reinforced, epoxide-based material having a dielectric strength of more than 30kV / mm.
  • the antenna coupler according to the invention will be described below with reference to the figures. Only a section of the antenna coupler, namely the coupling region in the multilayer printed circuit board is shown in each case.
  • Fig. 1 shows in a perspective view of an inventive antenna coupler 1 with two of each other by a layer insulation 13 spaced and isolated coplanar lines 3a, 3b, 4a, 4b. Since the first coplanar line 3a, 3b is consequently concealed by the second coplanar line 4a, 4b in this illustration, it is Fig. 4 for the arrangement of both coplanar lines 3a, 3b, 4a, 4b to each other to help.
  • the coplanar lines 3a, 3b, 4a, 4b are disposed on one side of a circuit board core layer 6 and shielded with an electrically conductive shielding structure 5, this shielding structure 5 extending in part on the opposite one of the two sides of the circuit board core layer 6 and formed so that the first high-frequency line 3a, 3b and not shown here, device-side metal parts that are not part of the Antennenkopplers, do not interact in the conduction of high-frequency signals.
  • Fig. 1 are both coplanar lines 3a in the y direction of the illustrated coordinate system. 3b, 4a, 4b respectively in the sequence outer conductor 3b, 4b- inner conductor 3a, 4a-outer conductor 3b, 4b arranged. In the z-direction of the coordinate system follow one another metal surface or screen surface 9 - an intermediate layer of dielectric material 8 - antenna side, (first) coplanar 3a, 3b - layer insulation 13 - device side (second) coplanar 4a, 4b.
  • the coplanar lines 3a, 3b, 4a, 4b extend parallel to one another in the longitudinal direction x in the multilayer printed circuit board (2); Apart from short antenna-side and device-side longitudinal sections (strip lines 10a, 10b, 11a, 11b), the coplanar lines 3a, 3b, 4a, 4b completely overlap in the longitudinal direction and completely overlap in their transverse direction y perpendicular to the longitudinal direction x.
  • strip lines 10a, 10b are also visible which project in the longitudinal direction x of the first coplanar line or the first high-frequency line 3a, 3b via the second coplanar line or second high-frequency line 4a, 4b for connection to an unillustrated coaxial line to an antenna; in the following synopsis with Fig. 3 this situation becomes even clearer.
  • Fig. 2 shows an enlarged perspective view of a device-side end portion of the antenna coupler according to Fig. 1 ,
  • the second high-frequency line 4a, 4b with strip lines 11a, 11b projecting in the x-direction over the first high-frequency line 3a, 3b for the purpose of connection to a device not shown in detail here.
  • FIG. 1 shows Fig. 3 in an enlarged perspective view of the antenna-side end portion of the antenna coupler with the strip lines 10a, 10b to the first high-frequency line 3a, 3b.
  • Fig. 4 is shown in a sectional view to the yz plane visible as the second high-frequency line 4a, 4b with its outer conductor 4b, but not with its inner conductor 4a, electrically conductive through the PCB core layer 6 through with the metal surface 9 on the opposite other of the two sides of the PCB core layer 6 is connected for shielding.
  • FIG. 5 shows in Fig. 5 the xz plane of the antenna coupler. It becomes clear that a large number of connections or printed circuit board plated-through holes 12 hold the outer conductor 4b with the metal surface 9 at the same potential.
  • the invention presented here is not limited to the embodiments shown but to the features of the claims. It is, for example, the second high-frequency line 4a, 4b of course coupled on the antenna side, while the first high-frequency line 3a, 3b can be coupled device side.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Details Of Aerials (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Combinations Of Printed Boards (AREA)
  • Waveguide Aerials (AREA)

Claims (7)

  1. Coupleur d'antenne (1) pour connecter une antenne haute fréquence à un appareil auquel une haute tension peut être appliquée de manière galvanique en cours de fonctionnement, comprenant
    - une carte de circuits imprimés multicouche (2) avec des plans conducteurs électriquement isolés les uns par rapport aux autres dans le sens de la profondeur (z) de la carte de circuits imprimés multicouche (2),
    - au moins une première ligne haute fréquence (3a, 3b) à coupler ou couplée à l'antenne haute fréquence dans un premier plan conducteur,
    - au moins une deuxième ligne haute fréquence (4a, 4b) à coupler ou couplée côté appareil dans un deuxième plan conducteur de la carte de circuits imprimés multicouche (2),
    - dans lequel la carte de circuits imprimés multicouche (2) présente une couche centrale (6) de carte de circuits imprimés électriquement isolante,
    - dans lequel les premier et deuxième plans conducteurs s'étendent sur la même des deux faces de la couche centrale (6) de carte de circuits imprimés,
    - dans lequel la deuxième ligne haute fréquence (4a, 4b) à coupler ou couplée côté appareil est disposée à une distance supérieure de la couche centrale (6) de carte de circuits imprimés que la première ligne haute fréquence (3a, 3b),
    - et dans lequel le coupleur d'antenne (1) présente une structure de blindage (5) électriquement conductrice qui s'étend en partie sur l'autre face opposée des deux faces de la couche centrale (6) de carte de circuits imprimés et qui est réalisée pour blinder la première ligne haute fréquence (3a, 3b) contre une interférence en cas de conduction de signaux haute fréquence,
    caractérisé en ce que
    - la deuxième ligne haute fréquence (4a, 4b) est disposée sur une surface extérieure de carte de circuits imprimés multicouche (2),
    - la structure de blindage (5) présente une surface métallique enveloppant partiellement la première ligne haute fréquence (3a, 3b),
    - dans lequel la deuxième ligne haute fréquence est reliée par son conducteur extérieur (4b) de manière électriquement conductrice à travers la couche centrale (6) de carte de circuits imprimés à la surface métallique (9) sur l'autre face opposée des deux faces de la couche centrale (6) de carte de circuits imprimés, et la première ligne haute fréquence (3a, 3b) est alors isolée par rapport à la deuxième ligne haute fréquence (4a, 4b) et par rapport à la surface métallique (9).
  2. Coupleur d'antenne (1) selon la revendication 1, caractérisé en ce que les première et deuxième lignes haute fréquence (3a, 3b, 4a, 4b) s'étendent parallèlement l'une à l'autre dans la carte de circuits imprimés multicouche (2) dans le sens de la longueur (x) des première et deuxième lignes haute fréquence (3a, 3b, 4a, 4b).
  3. Coupleur d'antenne (1) selon la revendication 1 ou 2, caractérisé en ce que les lignes haute fréquence (3a, 3b, 4a, 4b) se recouvrent complètement dans le sens de la longueur, en dehors de sections longitudinales courtes, côté antenne et côté appareil, des lignes haute fréquence (3a, 3b, 4a, 4b).
  4. Coupleur d'antenne (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les lignes haute fréquence (3a, 3b, 4a, 4b) espacées se recouvrent complètement les unes les autres dans leur direction transversale (y) orienté perpendiculaire au sens de la longueur.
  5. Coupleur d'antenne (1) selon l'une quelconque des revendications précédentes, caractérisé en ce que les lignes haute fréquence (3a, 3b, 4a, 4b) sont réalisées sous forme de lignes coplanaires.
  6. Coupleur d'antenne (1) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il présente dans chaque plan conducteur, au moins une ligne triplaque (10a, 11a) à coupler à un conducteur intérieur côté antenne ou côté appareil, et au moins deux lignes triplaques (10b, 11b) à coupler à un conducteur extérieur côté antenne ou côté appareil.
  7. Coupleur d'antenne (1) selon la revendication 6, dans lequel les lignes triplaques (10a, 10b, 11a, 11b) des première et deuxième lignes haute fréquence (3a, 3b, 4a, 4b) présentent une distance respective latérale, donc à mesurer perpendiculairement au sens de la longueur (x) des lignes triplaques (10a, 10b, 11a, 11b) les unes par rapport aux autres dans le plan conducteur concerné, et une largeur respective à mesurer dans le plan conducteur concerné dans la direction latérale (y), qui provoquent en combinaison une impédance caractéristique de 50 Ohm de la ligne haute fréquence concernée.
EP10747815.8A 2009-10-14 2010-08-06 Coupleur d'antenne Active EP2489095B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL10747815T PL2489095T3 (pl) 2009-10-14 2010-08-06 Sprzęgacz antenowy
EP10747815.8A EP2489095B1 (fr) 2009-10-14 2010-08-06 Coupleur d'antenne

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09173079 2009-10-14
PCT/EP2010/004825 WO2011044965A1 (fr) 2009-10-14 2010-08-06 Coupleur d'antenne
EP10747815.8A EP2489095B1 (fr) 2009-10-14 2010-08-06 Coupleur d'antenne

Publications (2)

Publication Number Publication Date
EP2489095A1 EP2489095A1 (fr) 2012-08-22
EP2489095B1 true EP2489095B1 (fr) 2017-10-04

Family

ID=42937550

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10747815.8A Active EP2489095B1 (fr) 2009-10-14 2010-08-06 Coupleur d'antenne

Country Status (7)

Country Link
US (1) US9147925B2 (fr)
EP (1) EP2489095B1 (fr)
AU (1) AU2010306171B2 (fr)
BR (1) BR112012008788B1 (fr)
NZ (1) NZ599934A (fr)
PL (1) PL2489095T3 (fr)
WO (1) WO2011044965A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102032907B1 (ko) * 2013-04-22 2019-10-16 삼성전자주식회사 반도체 소자, 반도체 패키지 및 전자 시스템
EP3158605A1 (fr) * 2014-06-23 2017-04-26 Blue Danube Systems Inc. Couplage de signaux sur des substrats multicouches
US10575395B2 (en) * 2016-06-07 2020-02-25 Honeywell International Inc. Band pass filter-based galvanic isolator
CN114094317B (zh) * 2021-10-22 2023-12-01 西安电子工程研究所 一种多层复合材料带状线天线、一体化成型模具及方法
WO2023085840A1 (fr) * 2021-11-12 2023-05-19 Samsung Electronics Co., Ltd. Réseau d'antennes à plaques à balayage large

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4987391A (en) 1990-03-14 1991-01-22 Kusiak Jr Michael Antenna cable ground isolator
US5689216A (en) * 1996-04-01 1997-11-18 Hughes Electronics Direct three-wire to stripline connection
US6023209A (en) * 1996-07-05 2000-02-08 Endgate Corporation Coplanar microwave circuit having suppression of undesired modes
US6903459B2 (en) * 2001-05-17 2005-06-07 Matsushita Electric Industrial Co., Ltd. High frequency semiconductor device
SE522404C2 (sv) 2001-11-30 2004-02-10 Ericsson Telefon Ab L M Riktkopplare
JP4097138B2 (ja) * 2003-03-10 2008-06-11 独立行政法人科学技術振興機構 インピーダンス整合回路とそれを用いた半導体素子及び無線通信装置
DE602005013229D1 (de) 2005-09-28 2009-04-23 Siemens Milltronics Proc Instr Galvanische Trennungsvorrichtung für eine ebene Schaltung
WO2007114391A1 (fr) * 2006-03-31 2007-10-11 Kyocera Corporation Dispositif de guide d'ondes dielectrique, dephaseur, commutateur haute frequence et attenuateur comprenant le dispositif de guide d'ondes dielectrique, et procede de fabrication d'emetteur haute frequence, de recepteur haute frequence, d'emetteur-recepteur haute frequence et de dispositif radar, d'antenne reseau et de dispo
TWI348247B (en) * 2008-04-15 2011-09-01 Univ Nat Taiwan Ground-plane slotted type signal transmission circuit board structure

Non-Patent Citations (1)

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Title
None *

Also Published As

Publication number Publication date
BR112012008788A2 (pt) 2020-08-25
EP2489095A1 (fr) 2012-08-22
WO2011044965A1 (fr) 2011-04-21
US20120262254A1 (en) 2012-10-18
AU2010306171A1 (en) 2012-05-24
AU2010306171B2 (en) 2015-06-18
BR112012008788B1 (pt) 2021-08-17
US9147925B2 (en) 2015-09-29
PL2489095T3 (pl) 2018-03-30
NZ599934A (en) 2013-07-26

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