EP3146593B1 - Antennensystem zur verringerung der elektromagnetischen kopplung zwischen antennen - Google Patents

Antennensystem zur verringerung der elektromagnetischen kopplung zwischen antennen Download PDF

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Publication number
EP3146593B1
EP3146593B1 EP15723030.1A EP15723030A EP3146593B1 EP 3146593 B1 EP3146593 B1 EP 3146593B1 EP 15723030 A EP15723030 A EP 15723030A EP 3146593 B1 EP3146593 B1 EP 3146593B1
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EP
European Patent Office
Prior art keywords
neutralisation
lines
elements
activation
radiating elements
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English (en)
French (fr)
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EP3146593A1 (de
Inventor
Philippe Le Thuc
Robert Staraj
Aliou Diallo
Michael Jeangeorges
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Centre National de la Recherche Scientifique CNRS
Universite de Nice Sophia Antipolis UNSA
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Centre National de la Recherche Scientifique CNRS
Universite de Nice Sophia Antipolis UNSA
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
    • H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/28—Combinations of substantially independent non-interacting antenna units or systems
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/0407—Substantially flat resonant element parallel to ground plane, e.g. patch antenna
    • H01Q9/0421—Substantially flat resonant element parallel to ground plane, e.g. patch antenna with a shorting wall or a shorting pin at one end of the element

Definitions

  • the present invention relates generally to the field of antennas and more particularly that of miniature antennas of the type used in all kinds of mobile electronic devices equipped with wireless communication means capable of receiving and transmitting signals in one or more ranges of. frequencies expressed in gigahertz.
  • these devices must be able to receive and transmit in the different frequency ranges corresponding to the various wireless transmission technologies and standards that they incorporate. It has become common for a cell phone, for example: a mobile phone of the so-called GSM type, acronym for “Global System for Mobile communications”, also incorporates a short-range wireless link of the “Bluetooth” type. to be able to connect the phone to another nearby device, for example, to connect to a personal computer or a mobile headset.
  • GSM Global System for Mobile communications
  • Bluetooth Bluetooth
  • Recent high-end mobile phones called "Smart Phone” most often include a receiver for a geolocation system by satellites operating, for example with the GPS system, acronym for “Global Positioning System”.
  • these devices are also equipped to allow their connection to a local wireless network of the LAN type, acronym for “Local Area Network”.
  • a local wireless network of the LAN type acronym for “Local Area Network”.
  • Wi-Fi network obeying the group of so-called “802.11” standards published by the North American institute well known under the acronym “IEEE” which thus provides access to the network.
  • IEEE North American institute well known under the acronym “IEEE”
  • the addition of antennas in the same device is made necessary by the adoption, particularly in Wi-Fi from the 802.11n standard, of a more efficient mode of communication known by the acronym " MIMO ”from the English“ Multiple-Input, Multiple-Output ”.
  • MIMO multiple-Input, Multiple-Output
  • This mode of communication favors a "diversity" of implementation of the transmission and / or reception means for the same communication link, which typically results in the implementation of so-called spatial diversity and the simultaneous use of 'at least two reception and transmission antennas per link.
  • This “diversity” mode of transmission is intended in particular to take into account a particularly disturbing phenomenon, which very frequently appears in an urban environment or in a confined environment such as an office building, for example, places in which Wi-Fi networks are commonly deployed. Fi.
  • This technique consists in placing a metallic line, called neutralization line 130, between the two radiating elements, possibly different, 110 and 120.
  • the radiating elements typically form so-called PIFA antennas, acronym for “planar inverted-F antenna”. , that is to say “inverted F plane antenna”.
  • PIFA antennas acronym for “planar inverted-F antenna”.
  • RF radio frequency signals
  • This innovation makes it possible to create multi-antenna systems for MIMO type applications working in diversity or for multistandard applications as described above. It will be noted here that, as in any PIFA antenna, the opposite part, 112 and 122, of each of the supply ports of the radiating elements, 111 and 121, is connected by a short circuit to the ground of the PCB.
  • variable capacity type It is generally a type of diode called “varicap”, the capacitance value of which is adjustable as a function of the direct voltage (DC) present at its terminals.
  • DC direct voltage
  • Patent documents US 2011/237207 , US 2010/304688 and US 2008/258991 each disclose a system for neutralizing an unwanted coupling between antennas which share the same space in the structure of user equipment.
  • the objective of the present invention is therefore to propose a miniature antenna system reducing or eliminating at least some of the drawbacks mentioned above.
  • the invention aims to propose an antenna system in which the electromagnetic coupling between antennas is satisfactory for a greater variety of frequencies, thus allowing a wider range of possible applications while maintaining a reduced size.
  • the invention makes it possible to improve the insulation between the accesses of the two radiating elements, this insulation being degraded by the electromagnetic coupling which occurs all the more between two radiating elements the closer they are.
  • the invention thus offers the possibility of performing frequency hopping, thereby making it possible to switch easily from one application to another regardless of their respective operating frequencies. For example, by simply activating / deactivating the neutralization lines, it is possible to switch from an operating mode based on an operating frequency of 700 MHz to an operating mode based on an operating frequency of several GHz and obtain for each of these modes of operation zero or strongly attenuated electromagnetic coupling.
  • the invention thus makes it possible to activate very dissimilar personalization elements (neutralization or even short-circuit lines) which can make it possible to obtain large variations in the RF behavior of the antennas.
  • the invention may further have at least any one of the following optional features taken separately or in combination:
  • said activation elements are configured so as to allow simultaneous activation of at least the first neutralization line and the second line of neutralization.
  • the first neutralization line and the second neutralization line are actuated simultaneously by said activation elements.
  • the system is configured so that at least two neutralization lines are activated simultaneously.
  • at least one of the neutralization lines is always activated, that is to say it is always connected to the two radiating elements.
  • the neutralization line preferably, then does not include an activation element connecting it to the radiating elements but a simple permanent connection.
  • the neutralization lines are configured so that, depending on their activation / deactivation, they ensure maximum neutralization of the electromagnetic coupling of the radiating elements for a plurality of distinct and separate frequencies for at least two of them and of preferably separated from each other by at least a factor 1.1 and preferably at least a factor 1.2 and preferably at least a factor 1.5 and preferably at least a factor 2.
  • the system comprises at least one short-circuit line to a ground plane of the antenna system per radiating element.
  • the system comprises at least one additional short-circuit line per radiating element.
  • the antenna system comprises binary activation elements of at least part of the short-circuit lines.
  • the binary activation elements are configured to independently activate or deactivate the neutralization and short-circuit lines to the ground plane.
  • each of the neutralization lines has a geometry, in particular a length, a width, a shape and a thickness, shaped to ensure neutralization of the electromagnetic coupling of the radiating elements for at least one frequency and preferably for a plurality of frequencies.
  • a neutralization line according to the present invention, by virtue of its geometry, can behave, for example, like a capacitor, an inductance or even an impedance, as a function of the frequency.
  • At least two neutralization lines connecting the same two radiating elements have different lengths and / or shapes.
  • At least one neutralization line among the first and second neutralization lines consists of a tab or a microstrip line.
  • a microstrip line is, for example, an electrical line, serving as a guide for electromagnetic wave propagation, consisting of a conductive strip deposited on a dielectric substrate, the second metallized face of which acts as a ground plane.
  • the neutralization line does not include a discrete element, which makes it possible to reduce losses.
  • all the neutralization lines consist only of a tongue or of a microstrip line.
  • the activation elements are binary activation elements.
  • the activation elements are configured to selectively activate or deactivate each of the neutralization lines. They thus make it possible to ensure decoupling for a maximum frequency which depends on the activation of the neutralization lines.
  • At least one of the activation elements is a PIN diode.
  • all the activation elements are PIN diodes.
  • At least the activation elements of at least part of the neutralization lines are PIN diodes polarized with the aid of a direct signal (DC) superimposed on the RF signals conveyed by the system in order to selectively or make conductive the PIN diode and allow the radiating element to which it is attached to become active, or make the PIN diode non-conductive so that the radiating element to which it is attached becomes inactive.
  • DC direct signal
  • At least some of the activation elements of at least part of the neutralization lines are varicap type diodes.
  • the system comprises two radiating elements and comprises two neutralization lines interconnecting said two radiating elements.
  • the system comprises at least two radiating elements and comprises at least three neutralization lines interconnecting said two radiating elements.
  • the neutralization lines are suspended between the radiating elements.
  • the neutralization lines are arranged at a distance from the ground plane.
  • the neutralization lines are printed on an electronic card carrying the radiating elements.
  • the neutralization lines are integrated or printed in a layer.
  • the system then forms a stack of superimposed layers with no intermediate empty space between the layers, one layer of which forms the ground plane and another layer of which comprises the neutralization lines and the radiating elements. This makes it possible to simplify the construction of the system and its industrialization.
  • the neutralization lines are formed in part by the ground plane, to which are connected conductive elements connected to the radiating elements and in part by these conductive elements.
  • the system comprises at least three radiating elements and a plurality of neutralization lines interconnecting the radiating elements.
  • the length is measured along the largest dimension of the tongue.
  • the width corresponds to the width of the tongue.
  • the height corresponds to the distance between the tongue and the ground plane, the tongue extending in a plane parallel to that in which the ground plane extends.
  • each neutralization line is associated with supply lines of the radiating elements.
  • the neutralization lines are associated with lines of connection to the ground plane of the radiating elements.
  • the means forming a ground plane comprise a printed circuit board.
  • the radiating elements are of the PIFA type.
  • the invention relates to an antenna system comprising elements forming a ground plane and at least two radiating elements and a first coupling neutralization line of the radiating elements characterized in that it comprises at least one second coupling neutralization line of the two radiating elements.
  • the system further includes activation elements configured to selectively activate or deactivate each of the neutralization lines, thereby providing electromagnetic decoupling for a maximum frequency which depends on the activation of the neutralization lines by the activation elements.
  • the activation elements are configured to selectively activate or deactivate each of the neutralization lines by making each of the neutralization lines conductive or not respectively.
  • the first line of coupling neutralization of the radiating elements has a first electromagnetic property, typically a first impedance or a first inductance
  • the second line of coupling neutralization of the two radiating elements has a second electromagnetic property different from the first, typically a second impedance or a second inductance different from the first.
  • a telecommunications apparatus comprising a multiple antenna system according to any one of the embodiments of the invention.
  • the apparatus also includes a receiver and / or a transmitter coupled to said multiple antenna system.
  • the telecommunications apparatus may be an apparatus for receiving or / and transmitting wireless communications. It is for example a cell phone.
  • the figures 2a and 2b describe an example of an antenna system according to the invention.
  • the invention consists in improving the technique of the neutralization line described in figure 1 by using simple binary switching components which can then be directly controlled by a digital circuit without the need to generate an analog DC voltage as is necessary with a varicap diode.
  • the binary switching components which are likely to be suitable include in particular the so-called PIN diodes which include, in addition to the P-type and N-type doped zones of a conventional diode, an undoped or intrinsic intermediate zone (I).
  • PIN diodes which include, in addition to the P-type and N-type doped zones of a conventional diode, an undoped or intrinsic intermediate zone (I).
  • I undoped or intrinsic intermediate zone
  • diodes which can be directly controlled by a digital circuit of the integrated circuit (IC) 101 type, make it possible to easily modify, on the fly, the behavior of the PIFA antennas without having to resort to the components of the varicap diode type as described in section figure 1 .
  • the invention combines the use of diodes, on the one hand, with several spatial arrangements of the short-circuit lines, 212 and 222, of the radiating elements; and on the other hand, with the addition of at least a second switchable neutralization line 230 in addition to the first neutralization line 130.
  • neutralization line is understood to mean a line connected between two radiating elements 110, 120 allowing, when it is passive, to isolate or improve the insulation between the supply ports of two radiating elements in order to reduce the coupling. observed between said radiating elements 110, 120, for a given frequency band.
  • At least one neutralization line 130, 230 does not include a discrete element.
  • the neutralization line 130, 230 consists of a microstrip line.
  • the neutralization line 130, 230 consists of a tab.
  • the neutralization line 130, 230 is advantageously in the form of a metal strip. It does not have a discrete element. Only its ends are connected to the activation elements which will be defined in detail below and which enable or disable the neutralization line.
  • each of the neutralization lines has a geometry, in particular a length, a width, a shape and a thickness, shaped to ensure neutralization of the electromagnetic coupling of the radiating elements for at least one frequency and preferably for a plurality of frequencies.
  • a neutralization line according to the present invention, by virtue of its geometry, can behave, for example, like a capacitor, an inductance or even an impedance, as a function of the frequency.
  • the radiating elements are for example PIFA antennas described in the figure 1 .
  • diodes are typically, as shown, discrete components that can be welded to the various metallic elements constituting the PIFA antennas used in this example intended to illustrate an implementation of the invention.
  • the switching between the multiple possible physical configurations thus obtained makes it possible to selectively activate or deactivate the short-circuits and the neutralization lines, and thus to control individually the frequencies at which the antennas are both adapted and isolated.
  • the neutralization is thus adjusted in order to simultaneously obtain an adequate decoupling of the two radiating elements for each operating mode of the antenna system.
  • the overall structure can thus adopt several behaviors precisely defined by the applications considered: diversity, multistandards or multi-access.
  • the components used are PIN diodes.
  • the binary behavior of these diodes, used in the on or off state, is fixed by a DC voltage higher or lower than a threshold voltage applied directly to the terminals thereof.
  • the direct voltage injected into the antenna system does not disturb not the RF signal intended to be radiated by the antennas.
  • FIG. 2 highlights the use of two separate locations for the short-circuit tabs, 212 and 222, of each antenna which are programmable using activation elements, preferably diodes 241 to 244, as well as the use of two neutralization lines, one fixed 130 and the other programmable 230 using activation elements 245, 246.
  • the activation elements are diodes.
  • At least one of the neutralization lines, the line 130 on the embodiment of the figure 2a is always activated, that is to say that it is always connected to the two radiating elements 110, 120.
  • the neutralization line 130 then does not include any activation element connecting it to the. radiating elements 110, 120 but a simple permanent connection.
  • the diodes In the example of the antenna system of the figure 2a it is possible, using the six diodes, to make already four combinations of antennas shown in the table below.
  • the diodes In this table, the diodes, the reference of which appears on the first line, are biased so as to be conductive if there is a "1" in the corresponding box and blocked if there is a "0".
  • the diodes 242, 244, 245, 246 are activated (“ON” state).
  • a diversity behavior is obtained with the two radiating elements 110, 120 in the same band (GPS).
  • the second neutralization line 230 makes it possible to decouple the operation of the radiating elements 110, 120 for these high frequencies.
  • the present invention therefore makes it possible to propose a multi-standard, multi-port system which can operate in diversity. This is made possible by the actuation independently but also and advantageously simultaneously of the neutralization lines 130, 230.
  • the radiating metallic elements 110 and 120 and the neutralization lines, 130 and 230 may form part of a raised printed circuit 102 on which the customization diodes 245 and 246 will also be soldered.
  • RF of the antennas, 211 and 221, as well as the short-circuit lines of the PIFA antennas, 212 and 222, will then be metal vias crossing the dielectric of the printed circuit 102 to be connected to the PCB 100 supporting the integrated circuit.
  • the thickness 103 of the circuit 102 will be adapted to meet the geometric characteristics defined for the PIFA antennas considered.
  • the figure 2a shows how diodes 241 to 246 are electrically connected in this exemplary embodiment of the invention.
  • the figure 3 shows the feasibility of the concept.
  • a significant electromagnetic coupling between two nearby radiating elements results in a generally high value of the transmission coefficient between the two so-called S21 antennas 310 measured or simulated between the two access ports 211 and 221.
  • the line of fixed neutralization 130 makes it possible to obtain a significant drop in coefficient S21, and therefore to obtain a strong isolation between ports (thus a weak electromagnetic coupling) for the working frequencies of the antennas operating in the PDC band centered on 1.483 GHz.
  • These simulation results are obtained by activating the short-circuit lines of the PIFA antennas corresponding to the diodes 241 and 243 in accordance with the table above. There is indeed a diversity operation with the two antennas operating in the same band, that known as PDC in this case.
  • the parameter S21 corresponding to the curve 310 is part of the so-called S parameters, standing for “scattering parameters” or “S-parameters” widely used in microwave frequencies in particular to characterize the behavior of passive or active dipoles. These parameters are used to measure the values of the incident waves, reflected and transmitted by the quadrupoles studied. As indicated above, S21 in this case measures the transmission coefficient between antennas.
  • the two almost superimposed curves 320 correspond for their part to the so-called parameters S11 and S22, also called the reflection coefficients of each of the antennas.
  • the figure 4 shows the simulation results obtained with the diodes 242, 244, 245 and 246 activated in their on state as shown in the table above.
  • Activation of the second neutralization line 230, using diodes 245 and 246, makes it possible to decouple the antennas for these frequencies higher than the previous ones in combination with the activation of the short-circuit lines of the corresponding PIFA antennas. to diodes 242 and 244.
  • This figure shows the same type of curves as in the previous figure, that is to say the parameter S21 410 corresponding to the transmission coefficient between the two antennas and the parameters S11 and S22 or coefficients of reflection of each of the antennas corresponding to the almost superimposed curves 420.
  • the polarization of the diodes 245 and 246 may require having to apply an intermediate independent polarization to the neutralization line 230 which will only act in DC.
  • this may take the form of a thin conductive vertical wire 231 connected to the PCB ground plane.
  • the vertical wire 231 allowing the DC polarization of the line 230 and therefore those of the diodes 245 and 246, could advantageously be designed and dimensioned in such a way that it alone constitutes a "coil of dc. 'stop' or 'shock choke' for transmitted or received RF signals. It could also be combined with a discrete component (not shown) to constitute a function of the choke type for the transmitted RF signals.
  • the figure 5 shows the results obtained with only the activation of the diode 241 and the corresponding short-circuit line 212.
  • the system thus operates only at the frequencies of the PDC band on the only antenna whose radiating element is 110.
  • This solution can be combined optionally depending on the applications with the case of figure 6 which follows in which the diodes 244, 245 and 246 are activated in their on state so as to activate the second neutralization line 230 and the short-circuit line 222 corresponding to the diode 244, to allow the operation of the single antenna of which the radiating element is 120 in the GPS frequency band in this case, thus forming a multiport system (PDC or GPS).
  • PDC multiport system
  • the invention therefore makes it possible to provide a multistandard and multiport system which can also operate in diversity. All of these functions are achieved with only two compact antennas close together and a few simple low cost components (PIN diodes) widely used by the electronics industry. This innovation drastically reduces the complexity of transmission systems traditionally using more antennas with reduced performance due to the electromagnetic coupling existing between antennas located close to each other on the same PCB.
  • the technique of the invention can easily be extended to other frequency bands and be applied to multiple wireless communication technologies. It is also possible to add other switchable short-circuit lines on each antenna to work on a greater number of frequency bands simultaneously. In this case, the addition of one or more switchable neutralization lines may be necessary.
  • the signal is included in a frequency band and ⁇ corresponds to the central frequency of the frequency band.
  • the range of the central operating frequencies of the system according to the invention can typically extend from 700 MHz to approximately 6 GHz.
  • the system can therefore be applied to all standards operating on this frequency band, including the following standards: LTE, GSM, DCS, PCS, UMTS, GPS, WiFI, Bluetooth, Zigbee, WLAN, etc.
  • the figure 7 shows the possible use of one or more additional neutralization lines 731 and 733 in addition to line 130.
  • line 130 is fixed, that is to say it is always activated (always connected to the two radiating elements).
  • the invention also encompasses systems in which all the lines are non-fixed, that is to say can be activated or deactivated.
  • neutralization lines may be of various shapes and sizes which are best suited by those skilled in the art, in particular with a view to obtaining a minimum coupling between antennas for the applications considered in a manner similar to this. which has been described for the antennas of the GPS and PDC bands in the previous figures.
  • the neutralization and short-circuit lines may optionally be fixed, or programmable in particular using diodes (not shown in this figure), in order to obtain several operating modes from the same antenna system. according to the invention.
  • the figure 8 illustrates the case where the antennas and their radiating elements have been multiplied.
  • they are four in number: 810, 820, 830 and 840. They are separated in this case by three neutralization lines 835, 837 and 839.
  • the lines of 'supply of RF signals 811, 821, 831 and 841, constituting the input ports of the antenna system, as well as the short-circuit lines: 812, 822, 832 and 842.
  • short lines -circuit and Additional programmable neutralization may optionally also be present in this structure.
  • At least some of the radiating elements are connected to one another by several neutralization lines.
  • the radiating elements are identical, the invention covers the embodiments in which the radiating elements of the same system are different.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Aerials (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)

Claims (15)

  1. Mehrantennensystem, das mindestens zwei abstrahlende Elemente (110, 120), eine erste Leitung (130) zur Neutralisation von elektromagnetischer Kopplung, welche die mindestens zwei abstrahlenden Elemente (110, 120) miteinander verbindet, für jedes abstrahlende Element (110, 120) mindestens eine Hochfrequenz-, HF, Speiseleitung (211, 221) umfasst,
    wobei das Antennensystem weiter umfasst:
    - mindestens eine zweite Leitung (230, 731, 733) zur Neutralisation von elektromagnetischer Kopplung, welche die mindestens zwei abstrahlenden Elemente (110, 120) miteinander verbindet; und
    - Elemente (245 und 246) zum Aktivieren mindestens eines Teils der Neutralisationsleitungen (130, 230, 731, 733),
    - mindestens eine erste Kurzschlussleitung (212), die eines der zwei abstrahlenden Elemente (110, 120) mit einer Masseplatte (100) des Antennensystems verbindet,
    - mindestens eine zweite Kurzschlussleitung (222), die das andere der zwei abstrahlenden Elemente (110, 120) mit der Masseplatte (100) des Antennensystems verbindet, und
    - Elemente (241 bis 244) zum Aktivieren mindestens eines Teils der Kurzschlussleitungen (212, 222),
    die Aktivierungselemente (241 bis 246) dafür konfiguriert sind, mindestens einen Teil der Neutralisationsleitungen (130, 230, 731, 733) und der Kurzschlussleitungen (212, 222) selektiv zu aktivieren oder zu deaktivieren, sodass die Neutralisations- (130, 230, 731, 733) und Kurzschlussleitungen (212, 222) abhängig von ihrer Aktivierung/Deaktivierung eine maximale Neutralisation der elektromagnetischen Kopplung der abstrahlenden Elemente (110, 120) bei einer Vielzahl von Frequenzen sicherstellen.
  2. System nach dem vorstehenden Anspruch, wobei mindestens eine der Neutralisationsleitungen (130, 230, 731, 733) kein diskretes Element besitzt.
  3. System nach einem der vorstehenden Ansprüche, wobei die Aktivierungselemente (241 bis 246) so konfiguriert sind, dass sie die gleichzeitige Aktivierung von mindestens der ersten Neutralisationsleitung (130) und der zweiten Neutralisationsleitung (230, 731, 733) ermöglichen.
  4. System nach einem der vorstehenden Ansprüche, wobei mindestens eine Neutralisationsleitung (130, 230, 731, 733) aus einer Lasche oder einer Mikrostreifenleitung besteht.
  5. System nach einem der vorstehenden Ansprüche, wobei die Neutralisationsleitungen (130, 230, 731, 733) so konfiguriert sind, dass sie abhängig von ihrer Aktivierung/Deaktivierung eine maximale Neutralisation der elektromagnetischen Kopplung der abstrahlenden Elemente (110, 120) bei einer Vielzahl von verschiedenen und um mindestens einen Faktor von 1,1, und vorzugsweise mindestens einen Faktor von 2 voneinander getrennten Frequenzen sicherstellen.
  6. System nach einem der vorstehenden Ansprüche, wobei die Aktivierungselemente (241 bis 246) dafür konfiguriert sind, die Neutralisations- (130, 230, 731, 733) und Kurzschlussleitungen (212, 222) unabhängig an der Masseplatte zu aktivieren oder zu deaktivieren.
  7. System nach einem der vorstehenden Ansprüche, wobei mindestens zwei Neutralisationsleitungen (130, 230, 731, 733), die die zwei gleichen abstrahlenden Elemente (110, 120) verbinden, unterschiedliche Längen und/oder Formen aufweisen.
  8. System nach einem der vorstehenden Ansprüche, wobei es sich bei den Aktivierungselementen (241 bis 246) um binäre Aktivierungselemente handelt.
  9. System nach einem der vorstehenden Ansprüche, wobei es sich bei mindestens einem der Aktivierungselemente (245, 246) um eine PIN-Diode handelt.
  10. System nach einem der vorstehenden Ansprüche, wobei es sich mindestens bei den Aktivierungselementen (245, 246) mindestens eines Teils der Neutralisationsleitungen (130, 230, 731, 733) um PIN-Dioden handelt, die mithilfe eines Gleichstrom-, DC, Signals polarisiert werden, das den vom System transportierten HF-Signalen überlagert wird, um die PIN-Diode selektiv entweder leitend zu machen und zu ermöglichen, dass das abstrahlende Element (110, 120), an das sie angeschlossen ist, aktiv wird, oder die PIN-Diode nichtleitend zu machen, derart, dass das abstrahlende Element (110, 120), an das sie angeschlossen ist, inaktiv wird.
  11. System nach einem der vorstehenden Ansprüche, wobei die Neutralisationsleitungen (130, 731, 733) zwischen den abstrahlenden Elementen (110, 120) und in Abstand zur Masseplatte (100) aufgehängt sind.
  12. System nach einem der Ansprüche 1 bis 10, das einen Stapel von Schichten umfasst, die ohne zwischenliegenden Leerraum übereinanderliegen und von denen eine Schicht die Masseplatte bildet, und von denen eine andere Schicht die Neutralisationsleitungen und die abstrahlenden Elemente umfasst.
  13. System nach einem der vorstehenden Ansprüche, das mindestens drei abstrahlende Elemente (810, 820, 830, 840) und eine Vielzahl von Neutralisationsleitungen (835, 837, 839) umfasst, die die abstrahlenden Elemente (810, 820, 830, 840) miteinander verbinden.
  14. System nach einem der vorstehenden Ansprüche, wobei mindestens gewisse, und vorzugsweise alle der abstrahlenden Elemente (110, 20, 810, 820, 830, 840) je eine allgemeine Laschenform aufweisen und die folgenden Abmessungen aufweisen:
    - eine Länge im Bereich zwischen λ/2 und λ/6, und vorzugsweise von λ/4,
    - eine Breite im Bereich zwischen λ/10 und λ/20, und vorzugsweise von λ/20,
    - eine Höhe im Bereich zwischen λ/30 und λ/15, und vorzugsweise im Bereich zwischen λ/28 und λ/20;
    wobei λ die Wellenlänge des Signals ist, das das abstrahlende Element (110, 20, 810, 820, 830, 840) senden/empfangen soll.
  15. Telekommunikationsgerät, das ein Mehrantennensystem nach einem der vorstehenden Ansprüche umfasst, und einen Empfänger und/oder einen Sender umfasst, der mit dem Mehrantennensystem gekoppelt ist.
EP15723030.1A 2014-05-19 2015-05-19 Antennensystem zur verringerung der elektromagnetischen kopplung zwischen antennen Active EP3146593B1 (de)

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FR1454478A FR3021164B1 (fr) 2014-05-19 2014-05-19 Systeme d'antennes pour reduire le couplage electromagnetique entre antennes
PCT/EP2015/061025 WO2015177170A1 (fr) 2014-05-19 2015-05-19 Système d'antennes pour réduire le couplage électromagnétique entre antennes

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TWM566918U (zh) * 2018-04-20 2018-09-11 明泰科技股份有限公司 Antenna architecture with low trace path
JP6678721B1 (ja) 2018-10-31 2020-04-08 京セラ株式会社 アンテナ、無線通信モジュール及び無線通信機器
JP6678722B1 (ja) * 2018-10-31 2020-04-08 京セラ株式会社 アンテナ、無線通信モジュール及び無線通信機器
JP6678723B1 (ja) * 2018-10-31 2020-04-08 京セラ株式会社 アンテナ、無線通信モジュール及び無線通信機器
CN112072303B (zh) * 2019-06-11 2021-07-06 苏州速感智能科技有限公司 一种解耦网络、安装解耦网络的方法和装置
JP7072725B2 (ja) * 2019-06-25 2022-05-20 京セラ株式会社 アンテナ、無線通信モジュール及び無線通信機器
JP7239513B2 (ja) * 2020-03-16 2023-03-14 京セラ株式会社 アンテナ、無線通信モジュール及び無線通信機器
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FR3021164A1 (fr) 2015-11-20
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WO2015177170A1 (fr) 2015-11-26
FR3021164B1 (fr) 2018-05-11
US20170084990A1 (en) 2017-03-23

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