EP2736118B1 - Antennensystem mit ineinander verschachtelten Regelkreisen und Fahrzeug, das ein solches Antennensystem umfasst - Google Patents

Antennensystem mit ineinander verschachtelten Regelkreisen und Fahrzeug, das ein solches Antennensystem umfasst Download PDF

Info

Publication number
EP2736118B1
EP2736118B1 EP13194112.2A EP13194112A EP2736118B1 EP 2736118 B1 EP2736118 B1 EP 2736118B1 EP 13194112 A EP13194112 A EP 13194112A EP 2736118 B1 EP2736118 B1 EP 2736118B1
Authority
EP
European Patent Office
Prior art keywords
filiform
antenna system
vehicle according
elements
antenna
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
EP13194112.2A
Other languages
English (en)
French (fr)
Other versions
EP2736118A1 (de
Inventor
Frédéric Ngo Bui Hung
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.)
Thales SA
Original Assignee
Thales SA
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 Thales SA filed Critical Thales SA
Publication of EP2736118A1 publication Critical patent/EP2736118A1/de
Application granted granted Critical
Publication of EP2736118B1 publication Critical patent/EP2736118B1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/32—Adaptation for use in or on road or rail vehicles
    • H01Q1/325—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle
    • H01Q1/3275—Adaptation for use in or on road or rail vehicles characterised by the location of the antenna on the vehicle mounted on a horizontal surface of the vehicle, e.g. on roof, hood, trunk
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
    • 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
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system

Definitions

  • the present invention relates to loop antenna systems.
  • the invention relates to a loop antenna system comprising a first electrically conductive threadlike element and forming a loop portion.
  • the thread-like conductive element of these systems generates a radiating surface.
  • the instantaneous bandwidth of these systems is low due to the smallness of the radiation resistance R r .
  • a known solution for increasing the radiation resistance R r of these antenna systems is to increase the physical length of the filiform element, which results in an increase in the area S of the radiation surface.
  • the increase in the dimensions of the filiform element tends to place the anti-resonance frequency of the antenna system, that is to say the frequency where the input impedance of the antenna becomes very large and difficult to adapt, in the range of useful frequencies of the system, which prevents the use of the antenna system at frequencies close to this anti-resonance frequency and therefore over the entire range of useful frequencies.
  • a high energy efficiency for this type of system requires limiting the useful bandwidth.
  • EP-A-1 246 299 describes an antenna system comprising two M-shaped antennas
  • US-A-4,217,591 describes a loop antenna system mounted on a vehicle, comprising a coupling antenna and a transmission antenna.
  • One of the objects of the invention is to propose an antenna system which does not have these drawbacks.
  • the invention relates to a vehicle according to claim 1.
  • the vehicle comprises one or more of the optional technical characteristics of claims 2 to 10.
  • the Figure 1 illustrates a machine 2 according to the invention.
  • the machine 2 is intended for land application, and is for example an all-terrain vehicle.
  • the machine 2 comprises a loop antenna system 4 according to the invention, hereinafter system 4, as well as a metal surface 6.
  • the metal surface 6 comprises the roof and the hood of the vehicle.
  • the system 4 is intended to operate in the frequency range 2 MHz - 30 MHz, and preferably in the frequency range 2 MHz - 12 MHz.
  • the system 4 comprises a ground plane 7, two filiform elements of respective references 8a, 8b as well as a fixing base 10, hereinafter base 10.
  • the system 4 comprises an impedance tuning unit 12, also known by the English name of “Antenna Tuning Unit” (which means antenna adaptation unit), and designated by ATU 12 in the following, and a connection cable 14 connecting the ATU 12 to the base 10.
  • the ground plane 7 of the system 4 is capable of providing a ground reference to the system 4 and is formed by the metal surface 6 of the machine 2.
  • the filiform elements 8a, 8b are electrically conductive and are capable of emitting and receiving electromagnetic waves. They are for example made from copper-plated steel.
  • they include a fiberglass core surrounded by a copper braid, or else are made from any suitable material known to those skilled in the art.
  • readlike is meant that the dimensions of the elements 8a, 8b in the direction of their length are of an order of magnitude much greater than the order of magnitude of the dimensions of the elements 8a, 8b in the other directions, and that the dimensions of the elements 8a, 8b in directions other than its length are substantially of the same order of magnitude.
  • the filiform elements 8a, 8b are elastically deformable.
  • the filiform elements 8a, 8b consist of a single section.
  • At least one of the filiform elements 8a, 8b is produced from a plurality of sections connected to each other. They are then assembled or disassembled in order to respectively assemble and disassemble the filiform element 8a, 8b. This has the effect of making it possible to minimize the space requirement of the system 4 on the vehicle 2 when the system 4 is not required.
  • the filiform elements 8a, 8b have respective lengths I a , I b having an order of magnitude less than the wavelengths of the preferred working frequencies of the system 4.
  • the filiform elements 8a, 8b have lengths I a , I b between 3 m and 6 m.
  • the filiform elements 8a, 8b have lengths I a , I b of between 3 m and 10 m. This variant is advantageously implemented when the machine 2 has a size suitable for this.
  • the lengths I a , I b of the filiform elements 8a, 8b are different from each other.
  • the threadlike element 8a is the shorter of the two.
  • the length l a, I b of the filiform element 8a, the longest 8b is substantially equal to twice the length l a, I b of the filiform element 8a, 8b most short. This constitutes an optimal compromise between the bulk of the system 4 and its radio performance.
  • the filiform elements 8a, 8b are fixed to the ground plane 7.
  • each element 8a, 8b is inserted into the base 10 in an orifice (not shown) that the base 10 includes.
  • each element 8a, 8b is fixed to the ground plane 7 via a grounding piece well known to those skilled in the art.
  • the filiform elements 8a, 8b each form a portion of a loop.
  • the dimensions of the loop portions are obtained by the appropriate positioning of the location of the fixing on the ground plane 7 of the end of the filiform elements 8a, 8b via the grounding piece.
  • the two filiform elements 8a, 8b, and therefore the portions of loops which they delimit, are substantially included in a plane P a , respectively P b .
  • the two planes P a , P b form an angle a between them.
  • the value of the angle ⁇ contributes to determining the level of radioelectric coupling between the radiating surfaces formed by the filiform elements 8a, 8b.
  • the angle ⁇ between the planes P a , P b is less than 45 °, and preferably less than 10 °.
  • the angle ⁇ is substantially zero, which maximizes the radioelectric coupling between the radiating surfaces and minimizes the lateral dimensions of the antenna system.
  • the value of the angle ⁇ is likely to vary under the effect of the acceleration and deceleration of the machine 2.
  • the filiform elements 8a, 8b are sufficiently rigid so that the angle ⁇ remains less than 45 °, and preferably less than 10 ° when the machine 2 is moving.
  • the necessary rigidity is obtained by varying the diameter of the filiform elements 8a, 8b.
  • the filiform elements 8a, 8b each generate a radiation surface S1, respectively S2 delimited on the one hand by the corresponding filiform element, and on the other hand by the ground plane 7.
  • the radiation surfaces S1, S2 are substantially included in the corresponding plane P a , P b .
  • the two radiation surfaces S1, S2 have the same general shape.
  • the surfaces S1, S2 formed by the elements 8a, 8b are both substantially semi-circular.
  • the portions of loops formed by the filiform elements 8a, 8b both form portions of a rectangle or a triangle.
  • the surfaces S1, S2 have a general shape which is different from each other.
  • the two surfaces S1, S2 have different areas.
  • S1 will designate the radiation surface of the smallest of the two areas, that is to say the surface delimited by the small filiform element 8a.
  • the portions of loops formed by the two filiform elements 8a, 8b are nested one inside the other.
  • overlapping it is meant that the smallest of the loop portions appears to be entirely included in the area delimited by the largest loop portion when the system 4 is observed from a direction substantially perpendicular to one of two surfaces S1 , S2.
  • the surface S1 appears to be entirely included in the surface S2 when the system 4 is observed from the side.
  • This nesting has the effect of minimizing the size of the system 4.
  • the base 10 allows the fixing of the filiform elements 8a, 8b on the ground plane 7 while ensuring the electrical insulation of the filiform elements of the ground plane, and allows the electrical connection of the filiform elements to the connection cable 14 and to the 'ATU 12.
  • the base 10 comprises a first part 101 electrically insulating and a second part 102 electrically conductive.
  • the two parts 101, 102 are cylindrical and have the same diameter.
  • the first part 101 is fixed to the ground plane 7 and is made of electrically insulating dielectric material.
  • the second part 102 is fixed on the first part 101 and is made of metal. Due to the first part 101, it is electrically isolated from the ground plane 7.
  • the second part 102 is provided with the orifices (not shown) in which one of the ends of each of the filiform elements 8a, 8b is fixed, as indicated above.
  • the second part 102 receives one end of the connection cable 14.
  • connection cable 14 is electrically connected to the ends of the two filiform elements 8a, 8b inserted in the base 10.
  • the ATU 12 is able to adapt the impedance of the system 4, that is to say to maximize the electrical power exchanged between the system 4 respectively and an RF transmission / reception device (not shown) to which the system 4 is coupled.
  • ATU 12 is located on ground plane 7.
  • the vehicle is located on board the vehicle 2, for example in a cavity located under the ground plane 7.
  • the ATU 12 is electrically connected to the base 10 via the connection cable 14, and supplies the same radiofrequency signal to the two filiform elements 8a, 8b.
  • the ATU 12 delivers the same RF signal to the filiform elements 8a, 8b through the base 10. The current flows through the filiform elements 8a, 8b and loops back to the ground plane 7.
  • the anti-resonance frequency of the system 4 is modified compared to a system having a single filiform element, and more precisely is distinct from the frequency d 'anti-resonance that would present the system comprising only one or the other of the filiform elements 8a, 8b.
  • the coupling of the filiform elements 8a, 8b in the system 4 according to the invention lowers the impedance of the system at its anti-resonance frequency, and allows its adaptation by an ATU, and therefore improves its efficiency. overall energy.
  • the instantaneous bandwidth of the system according to the invention which results from the radiation resistance, is appreciably increased because it comprises two radiation surfaces S1, S2, and therefore a total radiation surface greater than that of 'a system comprising only one or the other of the filiform elements 8a, 8b.
  • the system impedance at 3 MHz is equal to 0.002 + 66 j ⁇ .
  • the anti-resonance frequency of this system is 23.7 MHz.
  • the system impedance at this anti-resonance frequency is 19000 ⁇ .
  • the radiation resistance - which corresponds to the real part of the impedance - of system 4 at low frequencies has significantly increased, and more precisely has substantially doubled.
  • the impedance of system 4 at its anti-resonance frequency has decreased by a ratio close to ten.
  • the machine 2 is a ship, the metal surface 6 corresponding for example to the deck of the ship.
  • the filiform elements it is preferable to produce the filiform elements so that their mechanical strength is greater than that of the elements of a system adapted for a land vehicle.
  • the filiform elements 8a, 8b consist of a tube or several tubes successively fixed to each other, for example by welding.
  • the tubes are for example made from aluminum.
  • the machine 2 comprises two systems 4 according to the invention substantially identical to each other and arranged side by side substantially parallel to one another.
  • the elements filiform 8a, 8b respectively of the two systems being located at a distance from each other between 50 and 100 cm. The effect of this distance is to prevent the filiform elements 8a, 8b of the two systems 4 from coming into contact when these deform under the effect of the acceleration or deceleration of the machine 2.
  • the metal surface 6 of the machine 2 forms the common ground plane 7 of the two systems 4.
  • the ATUs 12 of the two systems 4 are both connected to the same transmission / reception device associated with the systems 4, for example via a power divider, and are for example controlled in accordance with the command described in FR 2 829 622 .
  • This variant of the machine 2 according to the invention has the effect of increasing the admissible power of the device formed by the two systems 4 arranged in parallel, as well as increasing the radiation resistance corresponding to the low frequencies of the range of use.
  • the system 4 does not include a ground plane 7.
  • the base 10 only consists of the second electrically conductive part 102 previously described
  • system 4 comprises a secondary base 10 'identical to the base 10.
  • the two bases 10, 10 ′ are respectively connected to one of two symmetrical channels 121, 122 which the ATU 12 comprises and are fixed directly above the ATU 12, for example by means of rigid conductive connecting rods electrically and arranged parallel to each other, and which perform the same function as the connection cable 14 previously described as well as the physical maintenance of the assembly.
  • each filiform element 8a, 8b are for the one inserted in the base 10, and for the other in the secondary base 10 '.
  • the radiation surfaces S1, S2 are only generated by the filiform elements 8a, 8b.
  • This variant is advantageously implemented when it is not possible or when it is not desired to use a ground plane.
  • the portions of loops both have a general triangular or rectangular shape.
  • the two portions of loops defined by the filiform elements 8a, 8b are nested one inside the other, respectively substantially included in a plane, the two planes thus defined forming an angle less than 45 °, and preferably less at 10 °.
  • This variant of the invention can in turn be implemented on a machine 2 according to the invention, in which two systems according to this variant of the invention are arranged side by side with one another, the two planes P has filiform elements 8a, 8b of one and the other of the systems being substantially parallel and located at a distance from one another between 50 cm and 100 cm.
  • the machine 2 is an aircraft.
  • the system 4 is devoid of ATU 12.
  • the filiform elements 8a, 8b are for example directly connected to the radiofrequency transmission / reception device to which the device 4 is coupled.
  • the two filiform elements 8a, 8b are also supplied with the same radiofrequency signal.
  • the coupling of the filiform elements 8a, 8b resulting in particular from their supply by the same radiofrequency signal makes it possible to lower the impedance of the antenna system 4 to its anti-resonance frequency.
  • the system 4 is configured for the transmission and reception of electromagnetic waves by ionospheric reflections.
  • the filiform elements 8a, 8b are intended to radiate mainly in a vertical direction of radiation.
  • the antenna 4 is configured to mainly radiate in a direction of radiation orthogonal to the ground plane 7.
  • the ground plane 7 is then arranged substantially horizontally.
  • the antenna 4 is configured to radiate mainly along a median axis of the loops formed by the filiform elements 8a, 8b and passing between the 'base 10 and secondary base 10'.
  • the direction of radiation of the antenna 4 results from the ratio between the wavelengths of the frequencies preferentially used by the system 4 and the length of the filiform elements 8a, 8b. More particularly, the length of the filiform elements 8a, 8b is shorter than the wavelengths of the preferred frequencies of the system 4. For example, a frequency of 2 MHz corresponds to a wavelength of 150 m, and a frequency of 12 MHz corresponds to a length of 25 m. These lengths are of an order of magnitude greater than the length of the filiform elements 8a, 8b.

Landscapes

  • Engineering & Computer Science (AREA)
  • Remote Sensing (AREA)
  • Details Of Aerials (AREA)
  • Support Of Aerials (AREA)

Claims (10)

  1. Wand-, Luft- oder Wasserfahrzeug, dadurch gekennzeichnet, dass es zwei Antennensysteme (4) mit zueinander identischen Schleifen umfasst, die nebeneinander und parallel zueinander angeordnet sind, wobei jedes Antennensystem (4) umfasst:
    - ein erstes drahtförmiges, elektrisch leitendes Element (8a, 8b), das einen Schleifenabschnitt bildet,
    - ein zweites drahtförmiges, elektrisch leitendes Element (8a, 8b), das einen Schleifenabschnitt bildet,
    wobei die zwei drahtförmigen Elemente (8a, 8b) unterschiedliche Längen (Ia, Ib) zueinander aufweisen, wobei das erste drahtförmige Element (8a, 8b) und das zweite drahtförmige Element (8a, 8b) mit einem selben Hochfrequenzsignal gespeist werden, das von einem der Enden jedes der zwei drahtförmigen Elemente (8a, 8b) empfangen wird, wobei für jedes Antennensystem (4) die Länge (Ia, Ib) des längsten drahtförmigen Elementes (8a, 8b) im Wesentlichen gleich dem Doppelten der Länge (Ia, Ib) des kürzesten drahtförmigen Elementes (8a, 8b) ist.
  2. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, dass für jedes Antennensystem (4) das erste drahtförmige Element (8 a, b) im Wesentlichen in einer ersten Ebene (Pa) liegt, dass das zweite drahtförmige Element im Wesentlichen in einer zweiten Ebene (Pb) liegt und dass die erste und die zweite Ebene (Pa, Pb) untereinander einen Winkel (α) kleiner als 45°, vorzugsweise kleiner als 10° bilden.
  3. Fahrzeug nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass für jedes Antennensystem (4) die von den drahtförmigen Elementen (8a, 8b) gebildeten Schleifenabschnitte ineinander verschachtelt sind.
  4. Fahrzeug nach einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Antennensystem (4) einen Befestigungssockel (10) für die Befestigung der drahtförmigen Elemente (8a, 8b) umfasst, wobei der Befestigungssockel (10) ein zweites elektrischen leitendes Teil (102) aufweist, in dem das Ende jedes drahtförmigen Elementes (8a, 8b), das von dem Hochfrequenzsignal gespeist wird, befestigt ist.
  5. Fahrzeug nach Anspruch 4, dadurch gekennzeichnet, dass jedes Antennensystem (4) gleichfalls einen Impedanzanpassungskasten (12) umfasst, der elektrisch mit dem zweiten Teil (102) zur Versorgung der zwei drahtförmigen Elemente (8a, 8b) mit demselben Hochfrequenzsignal verbunden ist.
  6. Fahrzeug nach Anspruch 5, dadurch gekennzeichnet, dass jedes Antennensystem (4) einen Sekundärbefestigungssockel (10') umfasst, in dem die anderen Enden der drahtförmigen Elemente (8a, 8b) befestigt sind, wobei der Impedanzanpassungskasten (12) zwei symmetrische Wege (121, 122) aufweist, von denen einer an den Befestigungssockel (10) und der andere an den Sekundärbefestigungssockel (10') angeschlossen sind.
  7. Fahrzeug nach einem beliebigen der vorhergehenden Ansprüche, dadurch kennzeichnet, dass für jedes Antennensystem (4) das andere Ende jedes drahtförmigen Elementes (8a, 8b) an einer Masseebene (7) befestigt ist.
  8. Fahrzeug nach Anspruch 7, dadurch gekennzeichnet, dass für jedes Antennensystem (4) das das Hochfrequenzsignal empfangende drahtförmige Element (8a, 8b) an der Masseebene (7) befestigt ist, wobei es zu der Masseebene (7) elektrisch isoliert ist.
  9. Fahrzeug nach Anspruch 4 oder 5, dadurch gekennzeichnet, dass jedes Antennensystem (4) eine Masseebene (7) umfasst, wobei der Befestigungssockel (10) ein erstes elektrisch isoliertes Teil (101), das an der Masseebene (7) befestigt ist und an dem das zweite Teil (102) befestigt ist, umfasst, wobei die anderen Enden der drahtförmigen Elemente an der Masseebene (7) befestigt sind.
  10. Fahrzeug noch einem beliebigen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass jedes Antennensystem (4) zum Senden und Empfangen von elektromagnetischen Wellen mit einer Frequenz zwischen 2 MHz und 30 MHz dient.
EP13194112.2A 2012-11-23 2013-11-22 Antennensystem mit ineinander verschachtelten Regelkreisen und Fahrzeug, das ein solches Antennensystem umfasst Active EP2736118B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1203159A FR2998722B1 (fr) 2012-11-23 2012-11-23 Systeme antennaire a boucles imbriquees et vehicule comprenant un tel systeme antennaire

Publications (2)

Publication Number Publication Date
EP2736118A1 EP2736118A1 (de) 2014-05-28
EP2736118B1 true EP2736118B1 (de) 2020-04-15

Family

ID=48236999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13194112.2A Active EP2736118B1 (de) 2012-11-23 2013-11-22 Antennensystem mit ineinander verschachtelten Regelkreisen und Fahrzeug, das ein solches Antennensystem umfasst

Country Status (5)

Country Link
US (1) US9559420B2 (de)
EP (1) EP2736118B1 (de)
ES (1) ES2802774T3 (de)
FR (1) FR2998722B1 (de)
MY (1) MY181340A (de)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442368A (en) * 1988-09-21 1995-08-15 Harada Kogyo Kabushiki Kaisha Automobile loop antenna
US6696954B2 (en) * 2000-10-16 2004-02-24 Amerasia International Technology, Inc. Antenna array for smart RFID tags
US20040216676A1 (en) * 1999-11-15 2004-11-04 Wilcoxson Mark H. Method for producing a semiconductor device
US6906672B1 (en) * 2003-07-25 2005-06-14 R.A. Miller Industries, Inc. Planar Antenna Arrangement
US20100117454A1 (en) * 2008-07-17 2010-05-13 Qualcomm Incorporated Adaptive matching and tuning of hf wireless power transmit antenna
JP2010119067A (ja) * 2008-11-14 2010-05-27 Toyota Central R&D Labs Inc アンテナ装置
JP2010200207A (ja) * 2009-02-27 2010-09-09 Nec Corp 多重ループアンテナ

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2368174A (en) * 1942-08-12 1945-01-30 Ford Motor Co Antenna
US3588905A (en) 1967-10-05 1971-06-28 John H Dunlavy Jr Wide range tunable transmitting loop antenna
US4217591A (en) * 1978-09-20 1980-08-12 The United States Of America As Represented By The Secretary Of The Army High frequency roll-bar loop antenna
FR2767420B1 (fr) * 1997-08-12 1999-10-29 Thomson Csf Dispositif a antenne demi-boucle haute frequence
JP2002359515A (ja) * 2001-03-26 2002-12-13 Matsushita Electric Ind Co Ltd Ｍ型アンテナ装置
FR2829622B1 (fr) 2001-09-11 2004-04-09 Thales Sa Systeme antennaire a rendement elevee et a forte puissance
JP2004266311A (ja) * 2003-01-15 2004-09-24 Fdk Corp アンテナ
CN102386482B (zh) * 2010-09-06 2014-06-18 光宝电子(广州)有限公司 多回圈天线系统及具有该多回圈天线系统的电子装置

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5442368A (en) * 1988-09-21 1995-08-15 Harada Kogyo Kabushiki Kaisha Automobile loop antenna
US20040216676A1 (en) * 1999-11-15 2004-11-04 Wilcoxson Mark H. Method for producing a semiconductor device
US6696954B2 (en) * 2000-10-16 2004-02-24 Amerasia International Technology, Inc. Antenna array for smart RFID tags
US6906672B1 (en) * 2003-07-25 2005-06-14 R.A. Miller Industries, Inc. Planar Antenna Arrangement
US20100117454A1 (en) * 2008-07-17 2010-05-13 Qualcomm Incorporated Adaptive matching and tuning of hf wireless power transmit antenna
JP2010119067A (ja) * 2008-11-14 2010-05-27 Toyota Central R&D Labs Inc アンテナ装置
JP2010200207A (ja) * 2009-02-27 2010-09-09 Nec Corp 多重ループアンテナ

Also Published As

Publication number Publication date
FR2998722B1 (fr) 2016-04-15
US20140145905A1 (en) 2014-05-29
FR2998722A1 (fr) 2014-05-30
MY181340A (en) 2020-12-21
US9559420B2 (en) 2017-01-31
EP2736118A1 (de) 2014-05-28
ES2802774T3 (es) 2021-01-21

Similar Documents

Publication Publication Date Title
CA2449359C (fr) Antenne fil-plaque
CA2812722C (fr) Antenne de grande dimension a ondes de surface et a large bande
CA2985023C (fr) Systeme antennaire a ondes de surface
EP3235058A1 (de) Drahtplattenantenne mit einem kapazitiven dach mit einem schlitz zwischen der speisungssonde und dem kurzschlussdraht
EP2365584B1 (de) Antennenvorrichtung mit einer Planarantenne und einem Breitbandreflektor sowie ein Herstellungsverfahren des Reflektors
EP2006954B1 (de) Kommunikationsgerät für Schienenfahrzeuge
EP3175509B1 (de) Logarithmisch-periodische antenne mit breitem frequenzband
EP2736118B1 (de) Antennensystem mit ineinander verschachtelten Regelkreisen und Fahrzeug, das ein solches Antennensystem umfasst
EP1523062B1 (de) Rundstrahlende Antenne zum Senden und Empfangen von Audio/Video Signalen
EP3529858A1 (de) Beschichtung zur verbergung von objekten vor der elektromagnetischen strahlung von antennen
WO2015049389A1 (fr) Antenne boucle volumique compacte large bande
CA2449667C (fr) Antenne resonante omnidirectionnelle
EP2449629B1 (de) Omnidirektionales kompaktes breitbandantennensystem mit zwei weitgehend entkoppelten separaten übertragungs- und empfangszugangsleitungen
FR3044999A1 (fr) Panneau composite a epargne non conductrice
EP2950457B1 (de) Datenübertragungssystem, eisenbahnsystem, das ein solches übertragungssystem umfasst, und entsprechendes übertragungsverfahren
EP1876673B1 (de) Richtantenne zum Senden und/oder Empfangen von Audio/Video Signalen
EP2226896B1 (de) Multiband-Rundstrahler
EP2610965B1 (de) Kompakte Breitbandantenne mit doppelter Linearpolarisation
WO2016139403A1 (fr) Structure antennaire omnidirectionnelle large bande
EP3902059A1 (de) Breitband-richtantenne mit longitudinalwellen-übertragung
WO2023117192A1 (fr) Dispositif antennaire à deux réseaux de dipôles et systeme de communication associe
FR2555822A1 (fr) Antenne a large bande pour, en particulier, telecommunications en ondes decametriques
EP2733788A1 (de) Monoband-Rundstrahler
WO2010070019A1 (fr) Antenne omnidirectionnelle tres large bande

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20131122

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

R17P Request for examination filed (corrected)

Effective date: 20140704

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: EXAMINATION IS IN PROGRESS

17Q First examination report despatched

Effective date: 20181002

REG Reference to a national code

Ref country code: DE

Ref legal event code: R079

Ref document number: 602013067886

Country of ref document: DE

Free format text: PREVIOUS MAIN CLASS: H01Q0001320000

Ipc: H01Q0007000000

RIC1 Information provided on ipc code assigned before grant

Ipc: H01Q 21/30 20060101ALI20190926BHEP

Ipc: H01Q 7/00 20060101AFI20190926BHEP

Ipc: H01Q 1/32 20060101ALI20190926BHEP

Ipc: H01Q 21/06 20060101ALI20190926BHEP

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20191113

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013067886

Country of ref document: DE

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 1258374

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200515

REG Reference to a national code

Ref country code: NL

Ref legal event code: MP

Effective date: 20200415

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200817

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200716

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200715

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200815

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

REG Reference to a national code

Ref country code: AT

Ref legal event code: MK05

Ref document number: 1258374

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200715

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013067886

Country of ref document: DE

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2802774

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20210121

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: SM

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: AT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

26N No opposition filed

Effective date: 20210118

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201130

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201130

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20201122

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20200415

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230522

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20231120

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20231218

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20231124

Year of fee payment: 11

Ref country code: DE

Payment date: 20231107

Year of fee payment: 11

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20231113

Year of fee payment: 11