EP3235058B1 - Drahtplattenantenne mit einem kapazitiven dach mit einem schlitz zwischen der speisungssonde und dem kurzschlussdraht - Google Patents

Drahtplattenantenne mit einem kapazitiven dach mit einem schlitz zwischen der speisungssonde und dem kurzschlussdraht Download PDF

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Publication number
EP3235058B1
EP3235058B1 EP15816167.9A EP15816167A EP3235058B1 EP 3235058 B1 EP3235058 B1 EP 3235058B1 EP 15816167 A EP15816167 A EP 15816167A EP 3235058 B1 EP3235058 B1 EP 3235058B1
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EP
European Patent Office
Prior art keywords
wire
plate antenna
slit
antenna
slot
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
EP15816167.9A
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English (en)
French (fr)
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EP3235058A1 (de
Inventor
Cyril JOUANLANNE
Christophe Delaveaud
Jean-François PINTOS
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Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
Original Assignee
Commissariat a lEnergie Atomique CEA
Commissariat a lEnergie Atomique et aux Energies Alternatives CEA
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/106—Microstrip slot antennas
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
    • H01Q13/10—Resonant slot antennas
    • H01Q13/103—Resonant slot antennas with variable reactance for tuning the antenna
    • 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
    • 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
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/32—Vertical arrangement of element
    • H01Q9/36—Vertical arrangement of element with top loading

Definitions

  • the invention is very generally applicable to telecommunications systems, and more particularly to communicating objects in which radio frequency devices (circuits and / or antennas) are present.
  • a particular, but not exclusive, targeted field of application relates to a device for geolocating an object, in particular a vehicle, comprising at least one such antenna configured so as to be able to transmit to a remote server, via a communication system.
  • a communication system in particular of GSM type, the different positions of said device thanks to an association with a geolocation system in particular of GPS type.
  • Another known structure is a multiband slot wire-plate antenna.
  • the slot is arranged on the capacitive roof over a large part of its periphery, near the peripheral edges, so as to separate the capacitive roof into two zones and thus create two distinct resonances.
  • In one of these zones are arranged the connection points of the capacitive roof respectively to the supply probe and to the short-circuit wire, on the same side of the slot.
  • These two resonances linked to the two zones are used separately and each of them is a wire-plate resonance.
  • This particular wire-plate antenna offers operation with several bandwidths (multiband antenna). However, the bandwidth still remains narrow. Indeed, this method does not allow the two resonances to be brought close enough to use them together and thus broaden the bandwidth.
  • Another known wide bandwidth planar antenna is the so-called "Goubau" antenna. It is an antenna in which the capacitive roof is delimited in 4 sectors via two intersecting slots. This antenna combines several resonance modes in order to obtain a broadband antenna, namely a first wire-plate type resonance, for example around 400 MHz, with a strong current on the short-circuit wires, a second monopoly resonance loaded, for example around 720MHz, with a strong current on the supply wires and a third resonance due to the wire connecting the supply wires and the short-circuit wires together, for example around 980MHz.
  • This antenna makes it possible to obtain a very wide bandwidth. However, its construction is very complex.
  • an object of the invention is to provide such a wire-plate antenna having a simple and space-saving mechanical structure and making it possible to offer a very wide operating bandwidth.
  • the ground plane, the capacitive roof, the supply probe, said at least one electrically conductive short-circuit element and said at least one slot are configured so that the wire-plate antenna has a first resonance mode of wire-plate type and a second slot resonance mode respectively at first and second distinct resonance frequencies, said first and second resonance frequencies being adapted so that the wire-plate antenna has a bandwidth of unique operating frequency and carry on.
  • the slot can be configured so as to have an equivalent electrical length equal to half the wavelength associated with said second resonant frequency of the wire-plate antenna, said slot being closed at its ends.
  • the electrically conducting short-circuit wire and the supply probe can be formed on the same substrate placed perpendicular to the ground plane and to the capacitive roof.
  • a device for geolocation of an object in particular of a vehicle, may comprise at least one such wire-plate antenna configured so as to transmit to a remote server, via a communication system, for example of GSM type, the different positions of the device through an association with a geolocation system, for example of the GPS type.
  • a communication system for example of GSM type
  • a particular area of application which is targeted, but not exclusive, relates to a device for geolocating an object, in particular a vehicle, comprising at least one such wire-plate slot antenna configured so as to transmit to a remote server, via a communication system, for example of GSM type, the different positions of the device thanks to an association with a geolocation system, for example of GPS type.
  • a communication system for example of GSM type
  • the supply probe 13 may be able, for example, to pass through the ground plane 11 for connection to a supply source. In this case, insulation with the ground plane 11 must be provided.
  • dielectric substrate between the ground plane 11 and the capacitive roof 12, at least on part of their interface.
  • the nature and design of this substrate may be parameters which must be taken into account when adjusting the wire-plate antenna 10.
  • the wires necessary for the supply probe 13 and for the short-circuit wire 14 of the antenna 10 can be produced in different ways and can have different profiles (circular, polygonal, etc.). They can for example be simple metal cylinders, forming spacers between the roof 12 and the ground plane 11, which would be welded or screwed to the roof 12 of the antenna and to the ground plane 11 (as regards the short-circuit wire 14. They can also be printed on a dielectric substrate which would be placed perpendicularly between the ground plane 11 and the roof 12 of the antenna 10. Therefore according to a particular embodiment, the electrically conductive wire of short circuit 14 and the supply probe 13 are formed on the same substrate placed perpendicular to the ground plane 11 and to the capacitive roof 12.
  • the supply probe 13 starts from a point on the ground plane 11 and then divides to connect to the capacitive roof 12 at several separate connection points.
  • the fact of placing a slot 15 between the supply probe 13 and the short-circuit wire 14 makes it possible to create a second resonance mode close to the first type resonance mode. wire plate. These two resonance modes are combined in order to obtain a gain in bandwidth of the order of 3 (in the case of a slot 15 of closed shape) compared to a conventional wire-plate antenna identical but devoid of 'such a slot 15.
  • the “equivalent electrical length”, also known as the "effective electrical length”, is a parameter fully known to those skilled in the art, who is able to determine it by calculation or by simulation, from knowledge of the parameters dimensions and construction of the slit wire-plate antenna 10, such as the dimensions and the material of the capacitive roof 12, the dimensions and the shape of the slit 15, the dimensional and structural characteristics of each short-circuit wire 14 and of the supply probe 13, dimensional and structural characteristics of the ground plane 11, of the relative distance separating each of these elements from each other, dimensional and structural characteristics of the possible dielectric material disposed between the ground plane 11 and the capacitive roof 12 ...
  • the electrical length is the geometric length reduced to the wavelength. We speak of "equivalent” when we take the wavelength in vacuum as a reference, corresponding to length in vacuum to obtain the same phase shift (reflection carried out on the propagation of a wave).
  • the slot 15 is configured so that the ratio between its length and its width is greater than 5, or even greater 10.
  • the slot 15 has a length much greater than its width, this width being able to be variable to control its equivalent electrical length.
  • the figure 14 is now a top view of the second embodiment of a slit wire-plate antenna 10 according to the invention, in which the slit 15 is open at at least one of its ends leading to the one of the peripheral edges of the capacitive roof 12.
  • the Figures 15 to 17 show different curves representative of the operation of the second embodiment as illustrated in the figure 14 , for which the width L5 of the roof 12 is 44 mm, the length L6 of the single lateral branch of the slot 15 is 5 mm, the length L8 of the main branch of the slot 15 is 45 mm and the length L7 of the roof 12 is 56 mm.
  • the bandwidth of the slit wire-plate antenna 10 (bounded by the frequencies f7 and f8) is of the order of 270 MHz, for a level of adaptation of -8 dB impedance ( figure 15 ), the low frequency f7 being of the order of 905 MHz (point P3 on the curve) and the high frequency f8 being of the order of 1177 MHz (point P4 on the curve).
  • the slit wire-plate antenna 10 comprises at least one other electrically conductive short-circuit wire 14 whose connection point M2 to the capacitive roof 12 is located on the same side, with respect to the slot 15, as the connection point M1 between the capacitive roof 12 and the supply probe 13.
  • the invention finally relates to the object 300 including a geolocation device 200 comprising a geolocation system 230 and a wire-plate antenna according to the invention, in particular a wire-plate antenna as described above.

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  • Waveguide Aerials (AREA)

Claims (11)

  1. Draht-Patch-Antenne (10), umfassend eine Masseebene (11), mindestens ein kapazitives Dach (12), eine Speisungssonde (13), die an das kapazitive Dach (12) angeschlossen ist und dazu bestimmt ist, mit einem Generator verbunden zu werden, und mindestens einen elektrisch leitenden Kurzschlussdraht (14), der das kapazitive Dach (12) und die Masseebene (11) verbindet, wobei die Draht-Patch-Antenne (10) dadurch gekennzeichnet ist, dass das kapazitive Dach (12) mindestens einen Schlitz (15) umfasst, der aus einer die gesamte Dicke des kapazitiven Dachs (12) durchdringenden Öffnung besteht, so dass er auf jeder der beiden entgegengesetzten Seiten des kapazitiven Dachs (12) mündet, und der so ausgestaltet ist, dass der Anschlusspunkt (M1) zwischen dem kapazitiven Dach (12) und der Speisungssonde (13) und der Anschlusspunkt (M2) zwischen dem kapazitiven Dach (12) und dem elektrisch leitenden Kurzschlussdraht (14) beidseits des Schlitzes (15) angeordnet sind, dass die Masseebene (11), das kapazitive Dach (12), die Speisungssonde (13), der mindestens eine elektrisch leitende Kurzschlussdraht (14) und der mindestens eine Schlitz (15) so parametriert sind, dass die Draht-Patch-Antenne (10) einen ersten Resonanzmodus vom Draht-Patch-Typ und einen zweiten Schlitzresonanzmodus bei ersten (f3, f9) bzw. zweiten (f4, f10) unterschiedlichen Resonanzfrequenzen aufweist, wobei die erste und die zweite Resonanzfrequenz so angepasst sind, dass die Draht-Patch-Antenne (10) einen einzigen und durchgängigen Betriebsfrequenz-Durchlassbereich aufweist, dass die Draht-Patch-Antenne kein am Schlitz angeordnetes diskretes Bauelement umfasst und dass der Schlitz an seinen Enden geschlossen ist.
  2. Draht-Patch-Antenne (10) nach Anspruch 1, dadurch gekennzeichnet, dass der Schlitz (15) geradlinig ist, mäanderförmig ist oder in mehrere Abschnitte geteilt ist, die untereinander verbunden sind, um einen nicht diskontinuierlichen Schlitz zu bilden.
  3. Draht-Patch-Antenne (10) nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, dass der Schlitz (15) so ausgestaltet ist, dass das Verhältnis zwischen seiner Länge und seiner Breite größer als 5 oder sogar größer als 10 ist.
  4. Draht-Patch-Antenne (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schlitz (15) so ausgestaltet ist, dass er eine elektrische Länge aufweist, die gleichwertig zur Hälfte der Wellenlänge ist, die der zweiten Resonanzfrequenz (f4) der Draht-Patch-Antenne (10) zugeordnet ist, wobei der Schlitz (15) an seinen Enden geschlossen ist.
  5. Draht-Patch-Antenne (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass sie mindestens einen weiteren elektrisch leitenden Kurzschlussdraht (14) umfasst, dessen Anschlusspunkt (M2) am kapazitiven Dach (12) in Bezug auf den Schlitz (15) auf der gleichen Seite wie der Anschlusspunkt (M1) zwischen dem kapazitiven Dach (12) und der Speisungssonde (13) oder auf der entgegengesetzten Seite gelegen ist.
  6. Draht-Patch-Antenne (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Speisungssonde (13) von einem Punkt der Masseebene (11) ausgeht, sich dann teilt, um am kapazitiven Dach (12) an mehreren verschiedenen Anschlusspunkten angeschlossen zu werden.
  7. Draht-Patch-Antenne (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schlitz (15) einen Winkel ungleich null, insbesondere zwischen 45° und 90°, mit der Richtung bildet, die den Anschlusspunkt (M1) zwischen dem kapazitiven Dach (12) und der Speisungssonde (13) und den Anschlusspunkt (M2) zwischen dem kapazitiven Dach (12) und dem elektrisch leitenden Kurzschlussdraht (14) verbindet.
  8. Draht-Patch-Antenne (10) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der elektrisch leitende Kurzschlussdraht (14) und die Speisungssonde (13) auf demselben Substrat gebildet sind, das senkrecht zur Masseebene (11) und zum kapazitiven Dach (12) angeordnet ist.
  9. Vorrichtung (200) zur Geolokalisierung eines Gegenstands (300), insbesondere eines Fahrzeugs, mit mindestens einer Draht-Patch-Antenne (10) nach einem der vorhergehenden Ansprüche, die so ausgestaltet ist, dass sie an einen entfernten Server (210) über ein Kommunikationssystem (220), beispielsweise vom GSM-Typ, die verschiedenen Positionen der Vorrichtung dank einer Kombination mit einem Geolokalisierungssystem (230), beispielsweise vom GPS-Typ, überträgt.
  10. Funkkommunikationsvorrichtung (100) mit einer Antenne (10) nach einem der Ansprüche 1 bis 8.
  11. Funkkommunikationsgegenstand (300), der eine Geolokalisierungsvorrichtung (200) beinhaltet, die ein Geolokalisierungssystem (230) und eine Antenne (10) nach einem der Ansprüche 1 bis 8 umfasst.
EP15816167.9A 2014-12-19 2015-12-18 Drahtplattenantenne mit einem kapazitiven dach mit einem schlitz zwischen der speisungssonde und dem kurzschlussdraht Active EP3235058B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1463018A FR3030909B1 (fr) 2014-12-19 2014-12-19 Antenne fil-plaque ayant un toit capacitif incorporant une fente entre la sonde d'alimentation et le fil de court-circuit
PCT/EP2015/080631 WO2016097362A1 (fr) 2014-12-19 2015-12-18 Antenne fil-plaque ayant un toit capacitif incorporant une fente entre la sonde d'alimentation et le fil de court-circuit

Publications (2)

Publication Number Publication Date
EP3235058A1 EP3235058A1 (de) 2017-10-25
EP3235058B1 true EP3235058B1 (de) 2020-05-27

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EP15816167.9A Active EP3235058B1 (de) 2014-12-19 2015-12-18 Drahtplattenantenne mit einem kapazitiven dach mit einem schlitz zwischen der speisungssonde und dem kurzschlussdraht

Country Status (4)

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US (1) US10547115B2 (de)
EP (1) EP3235058B1 (de)
FR (1) FR3030909B1 (de)
WO (1) WO2016097362A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4203189A1 (de) 2021-12-23 2023-06-28 Commissariat à l'énergie atomique et aux énergies alternatives Monopolare patch-drahtantenne mit erweiterter bandbreite

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CN108232441B (zh) * 2017-12-29 2020-11-06 瑞声精密制造科技(常州)有限公司 一种天线单元及阵列天线
FR3085550B1 (fr) * 2018-08-31 2021-05-14 Commissariat Energie Atomique Dispositif antennaire compact
FR3090220B1 (fr) * 2018-12-18 2021-01-15 Commissariat Energie Atomique Antenne fil-plaque monopolaire
FR3108209B1 (fr) * 2020-03-10 2022-02-25 Commissariat Energie Atomique Antenne fil-plaque monopolaire reconfigurable en fréquence

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4203189A1 (de) 2021-12-23 2023-06-28 Commissariat à l'énergie atomique et aux énergies alternatives Monopolare patch-drahtantenne mit erweiterter bandbreite
FR3131463A1 (fr) 2021-12-23 2023-06-30 Commissariat A L'energie Atomique Et Aux Energies Alternatives Antenne fil plaque monopolaire à bande passante élargie

Also Published As

Publication number Publication date
US10547115B2 (en) 2020-01-28
FR3030909A1 (fr) 2016-06-24
WO2016097362A1 (fr) 2016-06-23
EP3235058A1 (de) 2017-10-25
US20170352962A1 (en) 2017-12-07
FR3030909B1 (fr) 2018-02-02

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