WO2020002114A1 - Dispositif de transmission radiofrequence comportant un element de fixation formant une portion rayonnante d'une antenne - Google Patents
Dispositif de transmission radiofrequence comportant un element de fixation formant une portion rayonnante d'une antenne Download PDFInfo
- Publication number
- WO2020002114A1 WO2020002114A1 PCT/EP2019/066307 EP2019066307W WO2020002114A1 WO 2020002114 A1 WO2020002114 A1 WO 2020002114A1 EP 2019066307 W EP2019066307 W EP 2019066307W WO 2020002114 A1 WO2020002114 A1 WO 2020002114A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- antenna
- track
- transmission device
- radiofrequency
- fixing element
- Prior art date
Links
Classifications
-
- 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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/28—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements
- H01Q19/32—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using a secondary device in the form of two or more substantially straight conductive elements the primary active element being end-fed and elongated
-
- 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
-
- 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
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
-
- 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
-
- 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
-
- 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
- H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength
Definitions
- Radiofrequency transmission device comprising a fixing element forming a radiating portion of an antenna
- the invention relates to the field of radio frequency transmission devices comprising a fixing element forming a radiating portion of an antenna.
- Antennas are used in an extremely large number of diverse applications, in all industrial fields; automotive, aeronautics, telecommunications, medicine, energy, etc.
- an antenna is fixed on any support by one or more metallic fixing elements; screws, clips, clip, etc.
- a whip antenna for example an antenna mounted on a car, is fixed by screwing with a screw or a thread located at one end of the whip antenna.
- antennas each having the form of a metallic component fixed by screws on a support, for example on a printed circuit or on a housing of the telephone.
- the metallic fasteners of the antennas but also the other metallic fasteners, for example those used to fix an electric card on a box, tend to interfere with the operation of the antennas located near said metallic fasteners.
- an antenna integrated in or on electrical equipment occupies a relatively large volume of electrical equipment. It is therefore very advantageous to try to reduce the volume occupied by the antenna.
- the object of the invention is to improve the performance of radio frequency communications implemented by electrical equipment in or on which an antenna is integrated, and to reduce the volume occupied by 1 / antenna.
- a radiofrequency transmission device comprising an electric card, a transmission line, and an electrically conductive fixing element which is intended to fix the electric card on a support, the transmission line being electrically coupled with the fixing element so that the fixing element forms at least a first radiating portion of an antenna arranged to transmit and / or to receive radio frequency signals traveling on the transmission line.
- the electric card further comprises a first antenna track connected to the transmission line and electrically coupled with the fixing element, the first antenna track forming a second radiating portion of the antenna.
- the fixing element forms a first radiating portion of the antenna and is therefore used to transmit and / or receive radiofrequency signals.
- the fixing element is therefore no longer an element which disrupts radio frequency communications.
- advantage is taken of the dimensions of the fixing element to form the antenna.
- the volume dedicated to the antenna is therefore reduced inside the electrical equipment in which the radiofrequency transmission device according to the invention is integrated, and therefore the volume of the electrical equipment itself is reduced.
- a radiofrequency transmission device such as that just described is proposed, in which the electric card comprises a first surface formed on a conductive layer and a second surface formed on an insulating layer, the first surface being a surface of mass, the fastener extending from or through the second surface.
- the transmission line is a transmission track for the electric card, which extends inside the first surface up to the second surface to form the first antenna track which extends into the second surface as close to the fastener.
- the electric card comprises a second antenna track which extends inside the second surface, which is connected to the first antenna track, and which forms a third radiating portion of the antenna.
- a radiofrequency transmission device such as that just described is also proposed, in which the antenna resonance frequency is also defined from a length of the first antenna track and / or a length of the second antenna track and therefore at least one dimension of the second surface.
- radiofrequency transmission device such as that which has just been described.
- figuxe 1 is a perspective and exploded view of an electrical equipment in which is integrated a radiofrequency transmission device according to a first embodiment of the invention
- Figure 2 is a perspective and transparent view of the electrical equipment
- FIG. 3 is a perspective view from above of an electric card and a screw of the radiofrequency transmission device according to the first embodiment of the invention
- Figures 4 is a view similar to that of Figure 3, but from below;
- Figures 5 and 6 are views similar to that of Figure 3, but with different lengths of a first antenna track
- FIG. 7 represents a three-dimensional radiation diagram of an antenna of the radiofrequency transmission device according to the first embodiment of the invention.
- Figure 8 is a section of the diagram of Figure 7, a angle Theta having a fixed value equal to 90 °;
- Figure 9 is a section of the diagram of Figure 7, an angle Phi having a fixed value equal to 90 °;
- Figure 10 shows an electric field around the screw
- Figures 11 to 13 are perspective and top views of an electric card and a screw of a radiofrequency transmission device according to a second embodiment of the invention, the views differing from each other by a length of a second antenna track;
- FIG. 14 is a graph on which curves of a parameter SU are represented for different lengths of the second antenna track
- FIG. 15 represents a three-dimensional radiation diagram of an antenna of the radiofrequency transmission device according to the second embodiment of the invention.
- FIG. 17 represents a radiofrequency transmission device according to a third embodiment of the invention.
- FIG. 18 shows a radio frequency transmission device according to a fourth embodiment of the invention.
- a radiofrequency transmission device is here integrated into electrical equipment 1 which, in addition to the radiofrequency transmission device, comprises a housing 2.
- the housing 2 is here made of plastic, in this case ABS plastic.
- the housing 2 includes an upper cover 3 and a lower cover 4.
- the radiofrequency transmission device firstly comprises an electric card 5.
- the electric card 5 is fixed to the housing 2 by four screws 6.
- the housing 2 is therefore a support for the electric card 5.
- the electric card 5 has four holes 7 each positioned in a separate corner of the electrical card 5.
- the upper cover 3 has four holes 8 each positioned in a separate corner of the upper cover 3.
- the lower cover 4 meanwhile, has four threaded studs 9 each positioned in a separate corner of the lower cover 4.
- each screw 6 extends through a hole 8 made in the upper cover 3, a hole 7 made in the electric card 5, and is screwed into a threaded stud 9 of the lower cover 4.
- Each screw 6 is here made of iron and has a diameter of 3mm and a length of about 18mm.
- a first surface 14 is formed on the conductive layer 12.
- the first surface 14 is a ground surface which covers a large part of the insulating layer 10 with the exception, in particular, of a rectangular portion of the insulating layer 10.
- This rectangular portion defines a second rectangular surface 15 formed on the insulating layer 10.
- the radiofrequency transmission device also comprises a transmission line 16 which in this case is here a transmission track 16 formed on the conductive layer 12 of the electric card 5.
- the transmission track 16 extends inside the first surface 14, parallel to an edge 17 of the electric card 5 and to a first side 18 of the second surface 15.
- a transmission port 20 is positioned in the first surface 14 at a first end of the transmission track 16.
- the transmission track 16 opens at its second end in the second surface 15 and forms, in the second surface 15, a first antenna track 21.
- the transmission track 16 and the first antenna track 21 are interconnected and are therefore formed by the same track, but differ in that the transmission track 16 extends in the ground surface while the first antenna track 21 extends over the insulating layer 10 without being surrounded by ground.
- the radiofrequency transmission device also comprises a screw 6 which extends from or through the second surface 15, here through the second surface 15.
- One of the holes 7 of the electric card 5, through which the screw 6 extends, is positioned in the second surface 15.
- the hole 7 is a metallized hole 7.
- the metallized hole 7 here has an internal surface coated with metal. It would be possible to metallize the hole 7 differently, for example by inserting a metal tube into the hole 7.
- the first antenna track 21 extends in the second surface 15 up to the proximity of the metallized hole 7, being electrically coupled to the metallized hole 7.
- the first antenna track 21 extends around the metallized hole 7 and is directly connected to the metallized hole 7.
- the screw 6 is therefore positioned in the immediate vicinity of the metallized hole 7, or even in contact with the metallized hole 7, so that the transmission track 16 is electrically coupled with the screw 6 via the metallized hole 7 and the first antenna track 21.
- the transmission track 16 thus forms a transmission line 16 on which radio frequency signals pass, while the screw 6 forms a first radiating portion of an antenna and the first antenna track 21 forms a second radiating portion of the antenna.
- the screw 6 and the first antenna track 21 therefore form an antenna to which the transmission track 16 is connected.
- radiating portion is meant that the portion actively participates in the radiation produced by the antenna and has characteristics which contribute to defining the intrinsic electromagnetic characteristics of the antenna.
- the radio frequency signals traveling on the transmission track 16 are generated by a transmission component of the electric card 5, transmitted to the transmission track 16 via the transmission port 20 of the transmission track 16, then radiated by the antenna. , and / or are received by the antenna and transmitted to a reception component of the electric card 5 via the transmission port 20.
- the antenna can therefore obviously be used for transmission and / or reception of radio frequency signals.
- the transmission line 16 formed by the transmission track 16, and which is connected to the antenna, has a characteristic impedance of 50W (which is not the case for the first antenna track 21 which forms a second portion radiating from the antenna and not a line connected to the antenna ⁇ .
- the active part of the antenna therefore begins at the end of the first antenna track 21 which corresponds to the second end of the transmission track 16.
- the screw 6 does not need to be in strict contact with the first antenna track 21.
- the electrical coupling provided by the proximity between the body of the screw 6 and the metallized internal surface of the metallized hole 7, in the thickness of the printed circuit of the electric card 5, is sufficient for the propagation of the radiofrequency signals between the first antenna track 21 and the screw 6,
- a non-repeatable contact for example depending on manufacturing or positioning tolerances
- the device can for example comprise a mechanical index.
- the antenna constituted by the first antenna track 21 and by the screw 6 is a monopoly antenna which here has a resonance frequency of 5.2SGHz.
- the resonant frequency of the antenna is defined from a length of the screw 6, and from a length of the first antenna track 21 and therefore at least one dimension of the second surface 15, in this case the length of the first side 18 of the second surface 15
- the length of the first antenna track 21 and therefore of the first side 18 of the second surface 15 is adjusted to define the resonance frequency of the desired antenna. Adjusting the length of the first antenna track 21 is equivalent to adjusting the length of the first side 18 of the second surface 15, since it is considered here that the screw 6 is positioned at a constant distance (i.e. not adjustable ) from the edge
- the length of the first antenna track 21, and therefore the length of the first side 18 of the second surface 15, can be relatively large.
- the length of the first antenna track 21 can also be very small, or even almost zero, so that the first antenna track 21 is formed only by the portion which surrounds the metallized hole 7 and through the metallic hole 7 himself,
- the use of the length of the screw 6 to define the resonant frequency of the antenna makes it possible to reduce the area of the electric card 5 dedicated to the antenna, and therefore the space occupied by the antenna to inside the housing 2.
- the use of the screw 6 makes it possible to obtain a wide variety of electromagnetic polarization of the antenna, even in a small volume housing 2.
- the screw 6 of the transmission device according to the first embodiment of the invention here extends perpendicular to the electrical card 5. We obtain therefore a three-dimensional antenna without increasing the volume of the electrical equipment 1, but using a screw 6 which is necessary whatever happens to fix the electrical card 5 and close the box 2.
- a map electric 105 of a radiofrequency transmission device here comprises a first antenna track 121 and a second antenna track 122 which extend in the second surface 115, as well as a transmission track (not shown).
- the electric card 105 also includes a metallized hole 107 positioned in the second surface 115,
- the radiofrequency transmission device according to the second embodiment of the invention further comprises a screw 106 which extends through the metallized hole 107.
- the screw 106 forms a first radiating portion of the antenna of the radiofrequency transmission device according to the second embodiment of the invention, while the first antenna track 121 forms a second radiating portion of the antenna and the second track antenna 122 forms a third radiating portion of the antenna.
- the first antenna track 121 extends from a first side 118 of the second surface 115.
- the first antenna track 121 is connected to the transmission track via a transmission port 120 positioned at a first end of the first track antenna 121, which is located on the first side 118.
- the second antenna track 122 extends from a second side 119 of the second surface 115, which is perpendicular to the first side 118.
- the second antenna track 122 is connected to the metallized hole 107,
- the first antenna track 121 and the second antenna track 122 are perpendicular and are interconnected at a connection point 124 which is located on the second antenna track 122 and which corresponds to the second end of the first antenna track 121.
- the antenna resonant frequency is set to from a length of the screw 106 as well as from a length of the second antenna track 122 and therefore from the length of at least one dimension of the second surface 115, in this case from the length on the first side 118 of the second surface 115.
- the screw 106 is indeed here always positioned at the same distance from the edge 123 of the electric card 105.
- the resonant frequency of the antenna could entirely be defined as a function of the length of the first antenna track 121 (and / or that of the second antenna track 122).
- the antenna here is a “FIFA” type antenna (for Planar Inverted-F Antenna), that is to say a plane antenna in inverted F.
- the radiating whip comprises the second antenna track 122 and the screw 106.
- connection point 124 is always situated approximately the same distance from the second side 119, so that the resonant frequency of the antenna is defined more precisely from the distance , on the second antenna line
- connection point 124 is connected to connection point 122, between the connection point 124 and the metallized hole 107.
- the resonant frequency which corresponds to a minimum of a curve of the parameter SU, depends on the length of the second antenna track 122.
- the curve C1 corresponds to a length of the second antenna track 122 equal to 8mm.
- Curve C2 corresponds to a length of the second antenna track 122 equal to 12mm.
- the curve C3 corresponds to a length of the second antenna track 122 equal to 16mm.
- Curve C4 corresponds to a length of the second antenna track 122 equal to 20mm.
- the first antenna track 121 and the second track are obtained for the antenna formed by the screw 106.
- antenna 122 an efficiency of about -1.2dB at the frequency of 2.45GHz,
- the electrical card 205 of a radiofrequency transmission device can be positioned between a first support 201 and a second support 202.
- the screw 106 tightens between them the first support 201, the second support 202 and the electrical card 205.
- the first support 201 and the second support 202 are for example covers of a housing.
- the screw 206 is not in contact with the electric card 205, and the electromagnetic transfer between one or more tracks of the electric card 205 and the screw 206 must be made by an electrical contactless coupling.
- the proximity between the metallized hole 207, connected to a track, and the screw 206, may be sufficient to ensure efficient electrical coupling.
- the electric card 305 of a radiofrequency transmission device can be fixed, by means of the screw 306, on a single support 301.
- the support 301 is for example a plastic base.
- the electrical cards are fixed to the various supports via iron screws, one of these screws forming a radiating portion of the antenna.
- other fixing elements could be used to fix the electric card on a support and to form a radiating portion of the antenna, for example clips or staples.
- the fasteners are not necessarily made of iron, but could be made of any electrically conductive material.
- Another metal can be used, for example copper, aluminum, steel, etc.
- a non-metallic material can also be used, for example graphite. It is also possible to use a non-metallic material loaded with metallic particles.
- the transmission line could not be a track, but for example a conducting wire or a cable connecting the electric card of the radiofrequency transmission device to another electric card of the electrical equipment.
- the screw or any other electrically conductive fixing element, could also play the role of a reflective element of a Yagi type antenna.
- the screw could also be used as an isolator between two antennas, and then form a dummy antenna. In this case, there is no signal to transport to 1 radiating element, this consists of the single screw which ensures the function of radiating whip.
- the radiant whip can be connected or "planted in a ground plane.
Landscapes
- Support Of Aerials (AREA)
- Details Of Aerials (AREA)
- Transmitters (AREA)
- Near-Field Transmission Systems (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US17/255,567 US11489260B2 (en) | 2018-06-27 | 2019-06-19 | Radiofrequency transmission device comprising a fastening element forming a radiating portion of an antenna |
EP19730833.1A EP3815184A1 (fr) | 2018-06-27 | 2019-06-19 | Dispositif de transmission radiofrequence comportant un element de fixation formant une portion rayonnante d'une antenne |
BR112020026420-2A BR112020026420A2 (pt) | 2018-06-27 | 2019-06-19 | dispositivo de transmissão de radioifrequência que compreende um elemento de fixação que forma uma porção radiante de uma antena |
CN201980043688.2A CN112385085A (zh) | 2018-06-27 | 2019-06-19 | 包括形成天线的辐射部分的紧固元件的射频传输设备 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1855790 | 2018-06-27 | ||
FR1855790A FR3083373B1 (fr) | 2018-06-27 | 2018-06-27 | Dispositif de transmission radiofrequence comportant un element de fixation formant une portion rayonnante d’une antenne |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020002114A1 true WO2020002114A1 (fr) | 2020-01-02 |
Family
ID=63834160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/066307 WO2020002114A1 (fr) | 2018-06-27 | 2019-06-19 | Dispositif de transmission radiofrequence comportant un element de fixation formant une portion rayonnante d'une antenne |
Country Status (6)
Country | Link |
---|---|
US (1) | US11489260B2 (fr) |
EP (1) | EP3815184A1 (fr) |
CN (1) | CN112385085A (fr) |
BR (1) | BR112020026420A2 (fr) |
FR (1) | FR3083373B1 (fr) |
WO (1) | WO2020002114A1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023103547A1 (fr) * | 2021-12-08 | 2023-06-15 | 中兴通讯股份有限公司 | Module d'antenne wi-fi et équipement terminal |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019130860A1 (de) * | 2019-11-15 | 2021-05-20 | Bayerische Motoren Werke Aktiengesellschaft | Schraubbare Fahrzeugantenne |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090033568A1 (en) * | 2007-07-30 | 2009-02-05 | High Tech Computer, Corp. | Wireless communication apparatus |
CN101499554A (zh) * | 2008-01-31 | 2009-08-05 | 广达电脑股份有限公司 | 小型天线 |
US20130271327A1 (en) * | 2012-04-11 | 2013-10-17 | Denso Corporation | Wireless device |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4028709A (en) * | 1975-09-10 | 1977-06-07 | The United States Of America As Represented By The Field Operations Bureau Of The Federal Communications Commission | Adjustable yagi antenna |
WO2006120250A2 (fr) * | 2005-05-13 | 2006-11-16 | Fractus, S.A. | Systeme a diversite d'antenne et composant d'antenne a fente |
US10355362B2 (en) * | 2016-09-01 | 2019-07-16 | Nxp Usa, Inc. | Power amplifier system with integrated antenna |
-
2018
- 2018-06-27 FR FR1855790A patent/FR3083373B1/fr active Active
-
2019
- 2019-06-19 CN CN201980043688.2A patent/CN112385085A/zh active Pending
- 2019-06-19 US US17/255,567 patent/US11489260B2/en active Active
- 2019-06-19 EP EP19730833.1A patent/EP3815184A1/fr active Pending
- 2019-06-19 WO PCT/EP2019/066307 patent/WO2020002114A1/fr unknown
- 2019-06-19 BR BR112020026420-2A patent/BR112020026420A2/pt unknown
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20090033568A1 (en) * | 2007-07-30 | 2009-02-05 | High Tech Computer, Corp. | Wireless communication apparatus |
CN101499554A (zh) * | 2008-01-31 | 2009-08-05 | 广达电脑股份有限公司 | 小型天线 |
US20130271327A1 (en) * | 2012-04-11 | 2013-10-17 | Denso Corporation | Wireless device |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023103547A1 (fr) * | 2021-12-08 | 2023-06-15 | 中兴通讯股份有限公司 | Module d'antenne wi-fi et équipement terminal |
Also Published As
Publication number | Publication date |
---|---|
FR3083373A1 (fr) | 2020-01-03 |
CN112385085A (zh) | 2021-02-19 |
US20210288407A1 (en) | 2021-09-16 |
FR3083373B1 (fr) | 2020-09-04 |
EP3815184A1 (fr) | 2021-05-05 |
BR112020026420A2 (pt) | 2021-03-23 |
US11489260B2 (en) | 2022-11-01 |
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