CN203674401U - Antenna device and communication terminal device - Google Patents
Antenna device and communication terminal device Download PDFInfo
- Publication number
- CN203674401U CN203674401U CN201390000067.4U CN201390000067U CN203674401U CN 203674401 U CN203674401 U CN 203674401U CN 201390000067 U CN201390000067 U CN 201390000067U CN 203674401 U CN203674401 U CN 203674401U
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- China
- Prior art keywords
- power supply
- earthing conductor
- coil
- printed wiring
- supply coil
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- Expired - Lifetime
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- 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07777—Antenna details the antenna being of the inductive type
- G06K19/07779—Antenna details the antenna being of the inductive type the inductive antenna being a coil
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/07749—Constructional details, e.g. mounting of circuits in the carrier the record carrier being capable of non-contact communication, e.g. constructional details of the antenna of a non-contact smart card
- G06K19/07773—Antenna details
- G06K19/07794—Antenna details the record carrier comprising a booster or auxiliary antenna in addition to the antenna connected directly to the integrated circuit
-
- 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
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Computer Networks & Wireless Communication (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
- Near-Field Transmission Systems (AREA)
- Telephone Set Structure (AREA)
Abstract
The object of the utility model is to provide an antenna device and a communication terminal device. The antenna device comprises a printed wiring board (71), the printed wiring board (71) comprises a grounding conductor (111) arranged on the surface layer or the inner layer of an insulating base material and a power supply coil (112), the power supply coil (112) is formed on the surface layer or the inner layer of a printed wiring substrate in a coil-shaped pattern manner, one portion of the grounding conductor (111) comprises an annular coupling portion, the annular coupling portion comprises a first end part and a second end part, and the power supply coil (112) is coupled to the annular coupling portion of the grounding conductor (111) via an electromagnetic field. In this way, the small-scale antenna device advantaged by stable communication characteristic and capable of being stored in a limited space and the communication terminal device comprising the small-scale antenna device are provided.
Description
Technical field
The utility model relates to antenna assembly and the communication terminal for HF frequency band, UHF band communication system.
Background technology
As the system for carrying out expense, Item Management, RFID (Radio Frequency Identification: radio-frequency (RF) identification) system is universal.In rfid system, make read write line and RFID label carry out radio communication with cordless, sending and receiving high-frequency signal between above-mentioned device.Read write line and RFID label comprise respectively: for the treatment of the wireless IC chip of high-frequency signal; And for the antenna element of sending and receiving high-frequency signal.As antenna element, for example, using in the HF frequency band rfid system of 13.56MHz frequency band, use the antenna of coiled type, the aerial coil of read write line side and the aerial coil of label-side are coupled by induced field.
In this HF frequency band rfid system, for example FeliCa (registered trade mark) counterpart terminal shown in patent documentation 1, is built in mobile terminals by aerial coil, and communication terminal itself is used as to read write line, RFID label.Fig. 6 is the longitudinal sectional view of the contactless IC card read write line 1 that represents that patent documentation 1 records.
Contactless IC card comprises with read write line 1: the antenna substrate that is provided with loop aerial, capacitor at upper surface; Be provided with the control substrate 6 of transmitter/receiver circuit, patch-type coil 5 at upper surface; Be disposed at antenna substrate 4 and control the magnetic sheet material 10 between substrate 6; And insulating properties housing 15.For be arranged at control substrate 6 patch-type coil 5 above form peristome 11, configure magnetic sheet material 10 in the mode of the top of avoiding patch-type coil 5.Patch-type coil (power supply coil) 5, as shown in magnetic flux φ 1, is coupled with the loop aerial of antenna substrate 4 by induced field.Antenna substrate 4, as shown in magnetic flux φ 2, carries out magnetic Field Coupling with IC-card 20.By adopting this structure, can be in the situation that not using contact pin, flexible cable, RFID IC chip is substantially connected with aerial coil.
Existing patent documentation
Patent documentation
Patent documentation 1: No. 4325621 communique of Japan Patent
Utility model content
Utility model technical problem to be solved
But, in said structure, because patch-type coil is arranged at respectively different substrates from loop aerial, therefore,, if distance between the two changes, the intensity of magnetic Field Coupling also can change thereupon, consequently, can cause producing in communication characteristic deviation.In addition, because needs are used for configuring the space of patch-type coil and loop aerial, thereby may produce the problem that cannot guarantee sufficient space in terminal shell.
The communication terminal that the purpose of this utility model is to provide a kind of small-sized antenna assembly and has this small-sized antenna assembly, above-mentioned small-sized antenna assembly can obtain stable communication characteristic, and can be accommodated in limited space.
The technical scheme that technical solution problem adopts
(1) antenna assembly of the present utility model is characterised in that, comprising:
Printed wiring board, this printed wiring board, using insulating properties base material as base substrate, has and is arranged at the top layer of described insulating properties base material or the earthing conductor of internal layer; And
Power supply coil, this power supply coil is coiled type ground pattern and is formed at top layer or the internal layer of described printed wiring board,
In a part for described earthing conductor, have ring-type coupling part, this ring-type coupling part has first end and the second end,
Described power supply coil is coupled by the described ring-type coupling part of electromagnetic field and described earthing conductor.
According to this structure, owing to using the earthing conductor of printed wiring board to be used as sending the emitter that receives wireless signal, and, power supply coil is arranged on this printed wiring board, therefore, there is not larger deviation in the distance between power supply coil and emitter, the deviation of the electromagnetic field couples degree between power supply coil and expelling plate also can reduce.
(2) preferably between described first end and described the second end, capacity cell is set.Utilize this structure, the inductive component of ring-type coupling part and the capacitive component of chip capacitor with earthing conductor form resonant circuit, ring-type coupling part is worked as resonator, and make this resonance frequency approach the frequency band (for example HF frequency band) using, thereby can raise the efficiency, and increase maximum read distance.
(3) preferred described ring-type coupling part is to be formed by the otch that is arranged at described earthing conductor.Utilize this structure, without with special conductive pattern, ring-type coupling part being independently set, easily realize miniaturization.
(4) opening of the coil aperture of preferred described power supply coil and described ring-type coupling part coincides.Utilize this structure, can improve the degree of coupling between power supply circuits and earthing conductor, and the degree of coupling of powering between coil and ring-type coupling part.
(5) preferred described power supply coil is the laminated coil being laminated by multiple annular patterns, and the first end face of described laminated coil and the second end face are positioned at the first interarea side and the second interarea side of described earthing conductor.Utilize this structure, can reduce the planar dimension of coil of powering, and can maintain electromagnetic field couples degree necessary between power supply coil and ring-type coupling part.
(6) communication terminal of the present utility model is characterised in that, comprising:
Printed wiring board, this printed wiring board, using insulating properties base material as base substrate, has and is arranged at the top layer of described insulating properties base material or the earthing conductor of internal layer;
Power supply coil, this power supply coil is coiled type ground pattern and is formed at top layer or the internal layer of described printed wiring board;
Power supply component, this power supply component is installed on described printed wiring board, is connected with described power supply coil; And
Housing, is accommodated with described printed wiring board in this housing,
In a part for described earthing conductor, have ring-type coupling part, this ring-type coupling part has first end and the second end,
Described power supply coil is coupled by the described ring-type coupling part of electromagnetic field and described earthing conductor.
According to said structure, the deviation of the electromagnetic field couples degree between power supply coil and expelling plate reduces, thereby forms the small communication terminal device with stable communication characteristic.
According to the utility model, owing to using the earthing conductor of printed wiring board to be used as sending the emitter that receives wireless signal, and power supply coil is arranged on this printed wiring board, therefore, there is not larger deviation in the distance between power supply coil and emitter, the deviation of the electromagnetic field couples degree between power supply coil and emitter also can reduce.Therefore, can realize antenna assembly and the communication terminal with stable communication characteristic and miniaturization.
Brief description of the drawings
Fig. 1 (A) is the antenna assembly of execution mode 1 and the vertical view of communication terminal.
Fig. 1 (B) is the antenna assembly of execution mode 1 and the cutaway view of communication terminal.
Fig. 2 is the concise and to the point stereogram of the antenna assembly of execution mode 1.
Fig. 3 is the concise and to the point vertical view of the antenna assembly of execution mode 1.
Fig. 4 is the figure that represents the form of the electric current that flows through power coil 112 and earthing conductor 111 producing due to the coupling between the ring-type coupling part of the opening AP of power supply coil 112 and earthing conductor 111.
Fig. 5 (A) is the vertical view of the antenna assembly of execution mode 2, and Fig. 5 (B) is the cutaway view of this antenna assembly.
Fig. 6 is the longitudinal sectional view of the contactless IC card read write line 1 that represents that patent documentation 1 records.
Embodiment
" execution mode 1 "
The communication terminal of execution mode 1 is the NFC(Near Field Communication being provided with as HF frequency band rfid system: near-field communication) mobile communication terminal of system.
Fig. 1 (A) is the antenna assembly 206 of execution mode 1 and the vertical view of communication terminal 306, and Fig. 1 (B) is its cutaway view.Fig. 2 is the concise and to the point stereogram of the antenna assembly 206 of execution mode 1.Fig. 3 is the concise and to the point vertical view of this antenna assembly 206.
In the housing (external packing) of the communication terminal of execution mode 1, the first printed wiring board 71, the second printed wiring board 81, battery pack 83 etc. are installed.The various function element such as drive circuit, power control circuit and the functional circuit of cellular antenna 72, liquid crystal display cells are installed on the first printed wiring board 71, the second printed wiring board 81.Function element and functional circuit are configured to surface mount device.On printed wiring board 71,81, be three-dimensional shape and form the wiring pattern that is useful on connection function element and functional circuit.
The first printed wiring board 71 and the second printed wiring board 81 adopt insulating properties base material that epoxy resin has flame retardancy like that as base substrate.Above-mentioned printed wiring board 71,81 has sandwich construction, and layer therein, is provided with earthing conductor in the mode of the All Ranges of nearly cover printed wiring board 71,81.Earthing conductor is used as the earthing conductor of above-mentioned various function element and functional circuit.
Near the end of the earthing conductor 111 of the first printed wiring board 71, be provided with peristome, and be formed with the slit SL of the end for connecting this opening AP and earthing conductor.Slit SL by earthing conductor 111, opening AP is connected with the adjacent edge of opening AP.Being arranged at opening AP and the slit SL of this earthing conductor 111, is by the otch CP defined that is formed at plane earthing conductor 111.To in the otch CP of earthing conductor 111, clip CP slit SL and relative part is used as first end and the second end, and opening AP is used as to ring-type coupling part interior week.
The internal layer of the first printed wiring board 71 is provided with power supply coil 112.Power supply coil 112 is to carry out pattern formation with other various wirings that are formed at the first printed wiring board 71 simultaneously, and pattern is formed as the single-layer wire round of multiturn.The first end of power supply coil 112 and two input and output terminals that the second end is NFC IC chip 73 with power supply component are respectively connected.The power supply coil aperture of coil 112 and the opening AP of earthing conductor 111 are of similar shape and identical size., the surrounding of the power supply coil pattern of coil 112 and the peristome of earthing conductor 111 coincides.In addition, NFC can be both bare chip with IC chip 73, can be also encapsulation IC.Between NFC is with IC chip 73 and power supply coil 112, be connected with chip capacitor 74 in the mode in parallel with power supply coil 112, obtain thus the resonant circuit being formed by power supply coil 112 and chip capacitor 74.The resonance frequency of this resonant circuit is set as roughly equating with the frequency that sends reception signal.Between NFC is with IC chip 73 and power supply coil 112, filter element, coupling element can also be further set.
Fig. 4 is the figure that represents the form of the electric current that flows through power coil 112 and earthing conductor 111 producing due to the coupling between the ring-type coupling part of the opening AP of power supply coil 112 and earthing conductor 111.
As shown in Figure 4, if power supply is flow through signal code in coil 112, have via the opening AP of earthing conductor 111 and slit SL and flow through around the induced current of the edge part of earthing conductor 111.; under sending mode; while sending high-frequency signal with IC chip 73 to power supply coil 112 from NFC; the induced current that flows through the electric current of power supply coil 112 flows through the ring-type coupling part of earthing conductor; the electric current that flows through ring-type coupling part can be directed to whole earthing conductor 111(or partial earthing conductor 111), thus make earthing conductor 111 play the effect as the emitter of high-frequency signal.In addition, under receiving mode, when earthing conductor 111 receives high-frequency signal, have electric current and flow through the ring-type coupling part of earthing conductor 111, thereby the coil 112 of powering can receive the induced current of above-mentioned electric current and this induced current is transferred to NFC IC chip 73.
The ring-type coupling part of earthing conductor is connected with chip capacitor 74.The first end of slit SL and the first terminal of chip capacitor of earthing conductor 111 are connected, and the second end of slit SL is connected with the second terminal of chip capacitor.Thus, the inductive component of ring-type coupling part and the capacitive component of chip capacitor 74 with earthing conductor form resonant circuit, earthing conductor is worked as a part for resonator, and to make this resonance frequency approach the frequency that uses be HF frequency band, thereby can increase maximum read distance.
Although omitted diagram, be provided with metallic plate and carry out the display elements such as the display panels of electrostatic screen in the surperficial S2 side of housing 91, therefore, this NFC is the back side S1 side of housing 91 with the pointing direction of antenna assembly.Thereby, especially can increase towards the communication distance of the side surface direction that is provided with power supply coil 112 and slit SL.Therefore, preferably power supply coil 112 is configured near end housing 91, the directive side of tool, preferably slit SL extends setting towards the end direction of housing 91.
As mentioned above, according to the antenna assembly of present embodiment and communication terminal, due to being used as, the earthing conductor of the first printed wiring board 71 111 sends the emitter that receives high-frequency signal, and power supply coil 112 is arranged on same the first printed wiring board 71, therefore, in the time making the first printed wiring board 71, in fact just can determine the distance between power supply coil 112 and earthing conductor (emitter) 111, thereby the precise decreasing that occurs when communication terminal of assembling, housing warpage, the distance that the situation of distortion is difficult to cause powering between coil and earthing conductor (emitter) again produces deviation.Therefore, the electromagnetic field couples degree between power supply coil 112 and ring-type coupling part is also difficult for producing deviation, thereby can obtain stable communication characteristic.
In addition, owing to powering, coil 112 and earthing conductor (emitter) 111 are all arranged at the first printed wiring board 71, in other words, it is not the structure that power supply coil is set on other printed wiring board, the structure of emitter neither be set on other printed wiring board, therefore, without the larger space of guaranteeing in housing for antenna assembly is set, thereby contribute to very much to reduce the size of antenna assembly, and then reduce the size of communication terminal.
In addition, between power supply coil and the ring-type coupling part of earthing conductor, do not exist the institute such as scolder, processing bits of outflow not wish to exist material, therefore, can further improve the stability of communication characteristic.
In addition, due between power supply coil 112 and earthing conductor 111, be not straight flow be connected, therefore, even be applied with the surge noises such as ESD on earthing conductor 111, this surge noise is also difficult for entering NFC IC chip 73, thereby NFC is improved with the resistance to surge of IC chip 73.In addition, even enter earthing conductor 111 from the noise of various functional circuits, these noises also can not cause larger impact by the characteristic of IC chip 73 to NFC.
In the present embodiment, while observation from earthing conductor 111, power supply coil 112 is arranged at the surperficial S2 side of housing 91, and in the time observing from earthing conductor 111, NFC is installed on the back side S1 side of housing 91 with IC chip 73.Therefore, NFC just can be connected without the layer by earthing conductor 111 places with power supply coil 112 with IC chip 73.
" execution mode 2 "
Fig. 5 (A) is that vertical view, Fig. 5 (B) of the antenna assembly of execution mode 2 is the cutaway view of this antenna assembly.
In execution mode 2, power supply coil 112 is the laminated coils that are laminated by multiple annular patterns.The first end face of this laminated coil is positioned at the first interarea side of earthing conductor 111, and the second end face of this laminated coil is positioned at the second interarea side of earthing conductor 111.By adopting said structure, can reduce the planar dimension of coil 112 of powering, and can maintain electromagnetic field couples degree necessary between power supply coil 112 and the ring-type coupling part of earthing conductor 111.
" other execution mode "
Above, the utility model that the execution mode based on concrete illustrates, but the utility model is not limited to above-mentioned execution mode.
For example, as communication terminal, except mobile communication terminal, can be also the various devices that plate terminal, notebook computer etc. have radio communication function.Printed wiring board, battery pack not only can be installed on terminal shell, the various elements such as liquid crystal display cells can also be installed.
Earthing conductor not only can be arranged at the internal layer of printed wiring board, also can be arranged at the top layer of printed wiring board.In addition, the in the situation that of being formed with earthing conductor on multiple layer, each grounding conductor layer can be used as to emitter, also can be only will top layer or undermost earthing conductor be used as emitter.
The outer shape of earthing conductor is not limited to rectangle, also can be set to various shapes according to the wiring pattern of the shape of printed wiring board, various function element, functional circuit.
Power supply coil not only can be arranged at the internal layer of printed wiring board, also can be arranged at the top layer of printed wiring board.Can suitably design according to needed inductance value the number of plies, the number of turn of power supply coil.
The ring-type coupling part that is arranged at earthing conductor is not limited to be made up of peristome and slit portion, for example, also can recess be set in the marginal portion of earthing conductor, and the outer peripheral face of this recess is used as to ring-type coupling part.In addition, also can add ring-shaped conductor at the edge part of earthing conductor, and used as being ring-type coupling part.Peristome and width slit portion also can be identical.
Preferably overlook under state, at least a portion of the power supply coil aperture of coil 112 and the opening AP of earthing conductor 111 coincides, but without the shape of the opening AP of shape, size and the earthing conductor 111 of the coil aperture of the coil 112 that makes to power, measure-alike.For example, the coil aperture of power supply coil 112 can be greater than the opening AP of earthing conductor 111, and the coil aperture of power supply coil 112 also can be less than the opening AP of earthing conductor 111.Overall dimension at power supply coil 112 is less than the opening AP of earthing conductor 111, also power supply coil 112 can be formed on to same layer (inner side of opening AP) with earthing conductor 111.
As for the allocation position of coil 112 with respect to earthing conductor 111 of powering, also power supply coil 112 can be configured in to the back side S1 side of housing 91 while observation from earthing conductor 111.In this case, preferably NFC is also arranged on to the back side S1 side of housing with IC chip 73.
Reference numeral
AP opening
CP otch
The S1 back side
S2 surface
SL slit
71 first printed wiring boards
72 cellular antennas
73 NFC IC chip
74 chip capacitors
81 second printed wiring boards
83 battery pack
91 housings
110 printed wiring boards
111 earthing conductors
112 power supply coils
206 antenna assemblies
306 communication terminals
Claims (7)
1. an antenna assembly, is characterized in that, comprising:
Printed wiring board, this printed wiring board, using insulating properties base material as base substrate, has and is arranged at the top layer of described insulating properties base material or the earthing conductor of internal layer; And
Power supply coil, this power supply coil is coiled type ground pattern and is formed at top layer or the internal layer of described printed wiring board,
In a part for described earthing conductor, have ring-type coupling part, this ring-type coupling part has first end and the second end,
Described power supply coil is coupled by the described ring-type coupling part of electromagnetic field and described earthing conductor.
2. antenna assembly as claimed in claim 1, is characterized in that,
Between described first end and described the second end, be provided with capacity cell.
3. antenna assembly as claimed in claim 1, is characterized in that,
Described ring-type coupling part is formed by the otch that is arranged at described earthing conductor.
4. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,
The opening of the coil aperture of described power supply coil and described ring-type coupling part coincides.
5. the antenna assembly as described in any one of claims 1 to 3, is characterized in that,
Described power supply coil is the laminated coil being laminated by multiple annular patterns, and the first end face of described laminated coil and the second end face are positioned at the first interarea side and the second interarea side of described earthing conductor.
6. antenna assembly as claimed in claim 4, is characterized in that,
Described power supply coil is the laminated coil being laminated by multiple annular patterns, and the first end face of described laminated coil and the second end face are positioned at the first interarea side and the second interarea side of described earthing conductor.
7. a communication terminal, is characterized in that, comprising:
Printed wiring board, this printed wiring board, using insulating properties base material as base substrate, has and is arranged at the top layer of described insulating properties base material or the earthing conductor of internal layer;
Power supply coil, this power supply coil is coiled type ground pattern and is formed at top layer or the internal layer of described printed wiring board;
Power supply component, this power supply component is installed on described printed wiring board, is connected with described power supply coil; And
Housing, is accommodated with described printed wiring board in this housing,
In a part for described earthing conductor, have ring-type coupling part, this ring-type coupling part has first end and the second end,
Described power supply coil is coupled by the described ring-type coupling part of electromagnetic field and described earthing conductor.
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2012-019832 | 2012-02-01 | ||
| JP2012019832 | 2012-02-01 | ||
| JP2012-185596 | 2012-08-24 | ||
| JP2012185596 | 2012-08-24 | ||
| PCT/JP2013/051810 WO2013115147A1 (en) | 2012-02-01 | 2013-01-29 | Antenna apparatus and communication terminal apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203674401U true CN203674401U (en) | 2014-06-25 |
Family
ID=48905186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201390000067.4U Expired - Lifetime CN203674401U (en) | 2012-02-01 | 2013-01-29 | Antenna device and communication terminal device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP5720807B2 (en) |
| CN (1) | CN203674401U (en) |
| WO (1) | WO2013115147A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120583A (en) * | 2016-01-14 | 2019-08-13 | 株式会社村田制作所 | Antenna assembly and electronic equipment |
| CN111430370A (en) * | 2020-03-31 | 2020-07-17 | 厦门天马微电子有限公司 | Display panel and display device |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11354558B2 (en) | 2013-01-18 | 2022-06-07 | Amatech Group Limited | Contactless smartcards with coupling frames |
| CN104466353B (en) * | 2013-09-17 | 2017-10-31 | 中国科学院微电子研究所 | UHF frequency band RFID reader-writer antenna of ultra-bandwidth integrated reader-writer circuit module |
| ES2676700T3 (en) | 2013-11-08 | 2018-07-24 | Nokia Technologies Oy | Arrangement of a communication coil and an induction load coil |
| KR101826459B1 (en) * | 2013-12-31 | 2018-03-22 | 비와이디 컴퍼니 리미티드 | Nfc antenna assembly |
| CN104752808B (en) * | 2013-12-31 | 2017-12-08 | 惠州比亚迪实业有限公司 | Nfc antenna component |
| EP3614410B1 (en) * | 2014-10-10 | 2024-03-20 | Finder S.P.A. | Programmable switch |
| CN107871930A (en) * | 2016-09-26 | 2018-04-03 | 上海德门电子科技有限公司 | A kind of NFC antenna and its communication apparatus for being applicable fluting or open-porous metal housing |
| FR3077434B1 (en) | 2018-01-29 | 2021-03-05 | Continental Automotive France | NEAR FIELD AND ULTRA HIGH FREQUENCY COMMUNICATION DEVICE |
| CN112673522B (en) | 2018-08-02 | 2022-11-01 | 上海诺基亚贝尔股份有限公司 | Antenna and wireless communication device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4103684B2 (en) * | 2003-05-29 | 2008-06-18 | 富士電機ホールディングス株式会社 | Antenna unit |
| JP2005198047A (en) * | 2004-01-07 | 2005-07-21 | Fuji Electric Holdings Co Ltd | Antenna for information processor, and information processor |
| EP2284949B1 (en) * | 2008-05-21 | 2016-08-03 | Murata Manufacturing Co. Ltd. | Wireless ic device |
-
2013
- 2013-01-29 CN CN201390000067.4U patent/CN203674401U/en not_active Expired - Lifetime
- 2013-01-29 WO PCT/JP2013/051810 patent/WO2013115147A1/en active Application Filing
- 2013-01-29 JP JP2013556393A patent/JP5720807B2/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110120583A (en) * | 2016-01-14 | 2019-08-13 | 株式会社村田制作所 | Antenna assembly and electronic equipment |
| CN111430370A (en) * | 2020-03-31 | 2020-07-17 | 厦门天马微电子有限公司 | Display panel and display device |
| CN111430370B (en) * | 2020-03-31 | 2023-03-21 | 厦门天马微电子有限公司 | Display panel and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPWO2013115147A1 (en) | 2015-05-11 |
| JP5720807B2 (en) | 2015-05-20 |
| WO2013115147A1 (en) | 2013-08-08 |
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