CN209045772U - Multiband antenna and electronic equipment - Google Patents
Multiband antenna and electronic equipment Download PDFInfo
- Publication number
- CN209045772U CN209045772U CN201790000787.9U CN201790000787U CN209045772U CN 209045772 U CN209045772 U CN 209045772U CN 201790000787 U CN201790000787 U CN 201790000787U CN 209045772 U CN209045772 U CN 209045772U
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- China
- Prior art keywords
- antenna element
- frequency band
- high frequency
- low
- antenna
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Classifications
-
- 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
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
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- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
- Support Of Aerials (AREA)
Abstract
The utility model relates to multiband antenna and electronic equipments.Electronic equipment (1) has high frequency antenna element (11) and low frequency antenna element (12) in order to carry out multi-band communication.High frequency antenna element (11) and low frequency antenna element (12) are physically connected and are electrically connected by inductor bridge (20).RFIC (15) carries out the power supply communicated for high frequency band and low-frequency band communicates with antenna element (11) to high frequency.Inductor bridge (20) includes the flat green body being made of resin base material；The 1st interconnecting piece for being set to green body and being connect with high frequency with antenna element (11)；The 2nd interconnecting piece for being set to green body and being connect with low frequency with antenna element (12)；The inductor portion being connected between the 1st interconnecting piece of green body and the 2nd interconnecting piece and.
Description
Technical field
The utility model relates to the multiband antenna with mutiple antennas element and the electronic equipments for having it.
Background technique
In patent document 1, a kind of the more of the antenna element of the antenna element for having low-frequency band and high frequency band are disclosed
Frequency-band antenna.In the multiband antenna described in patent document 1, between the antenna element and supply terminals of high frequency band, insertion
The impedance matching circuit being made of resonance circuit.The resonance circuit sets resonance frequency between low-frequency band and high frequency band.Also,
Resonance circuit plays a role in low-frequency band as inductor, plays a role in high frequency band as capacitor.As a result, under low-frequency band
Also it is able to use the antenna element of high frequency band, realizes the good broadband character under low-frequency band.
Citation
Patent document
Patent document 1:JP special open 2010-10960 bulletin
Utility model content
The utility model project-to be solved
But in the case where patent document 1, impedance matching circuit (resonance circuit) is needed, it is therefore desirable to ensure circuit
Installation space.Therefore come, in recent years, using described in patent document 1 in requiring miniaturization and lightening terminal installation
In the case where multiband antenna, there are the confined problems of freedom degree of the intracorporal component configuration of shell.In addition, if using impedance
With circuit, then need to protect the terminal of the terminal of interarea, mounted component that are formed in circuit substrate, it is number in manufacture
It is tired.
Therefore, the purpose of the utility model is to provide a kind of multiband antennas and tool that can be realized space saving
For its electronic equipment.
The means to solve the problem-
Multiband antenna involved in the utility model is characterized in that having: high frequency band antenna element；Low-frequency band is used
Antenna element；The high frequency band is connect with antenna element with the low-frequency band with antenna element by inductor bridge；And power supply,
It is connect with the high frequency band with antenna element, carries out the power supply communicated for high frequency band and low-frequency band communicates, the inductor
Bridge includes the flat green body being made of resin base material；1st interconnecting piece is set to the green body, with the high frequency band day
Thread elements connection；2nd interconnecting piece is set to the green body, connect with the low-frequency band with antenna element；With inductor portion, connect
It connects between the 1st interconnecting piece of the green body and the 2nd interconnecting piece.
In this configuration, even if the sky for the wiring that setting links high frequency band antenna element and low-frequency band with antenna element
Between it is relatively narrow, thin inductor bridge can also climbed in the space.In other words, it does not need to substantially ensure setting inductor bridge
Space can be realized space saving.
Further, since inductor bridge is Low ESR under low-frequency band, therefore in low-frequency band communication, high frequency band antenna
Element and low-frequency band are played a role with antenna element.In other words, high frequency band antenna element is taken in low-frequency band communication
A part of antenna element.As a result, by adjusting the impedance of the length of inductor bridge or inductor component, low frequency can be changed
The communication frequency of band.
It is also possible to the high frequency band antenna element by multiband antenna involved in the utility model, described low
Frequency band antenna element and the inductor bridge form the structure of dipole antenna.
In this configuration, even if high frequency band is formed in the position separated with antenna element with antenna element with low-frequency band,
It can be by being attached using inductor bridge, to constitute dipole antenna.Also, by using inductor bridge, be capable of forming compared with
Long antenna part is easy to constitute dipole antenna.In addition, by being set as dipole antenna, do not need for by the ground connection of antenna ground,
The connection cables for being grounded are not needed, do not need to be grounded close to configuration.Furthermore it is possible to by high frequency band antenna element
It is set as a part of the dipole antenna of low frequency, therefore low-frequency band can be made to be minimized with antenna element.
Electronic equipment involved in the utility model is characterized in that having: multiband day involved in the utility model
The shell of line and the storage multiband antenna, high frequency band antenna element and the low-frequency band are constituted with antenna element
A part of the shell.
In this configuration, by the way that high frequency band antenna element and low-frequency band to be set as to a part of shell with antenna element,
Without being configured inside housings to installation space.
Electronic equipment involved in the utility model, which may be configured as follows:, has the circuit base for being contained in the shell
Plate, the inductor portion of the inductor bridge are configured as separating from the circuit substrate.
In this configuration, it is able to suppress the generation of the stray capacitance between inductor bridge and circuit substrate.Thereby, it is possible to keep away
Exempt from the variation of antenna performance brought by the influence of stray capacitance.Furthermore it is possible to electric current is avoided to be grounded via stray capacitance flow direction,
A possibility that being functioned not as antenna.
Utility model effect-
According to the utility model, do not need to substantially ensure setting by high frequency band antenna element and low-frequency band antenna element
The space of the wiring of connection, can be realized space saving.
Detailed description of the invention
Fig. 1 is the top view for indicating a part of the construction of enclosure interior of electronic equipment involved in embodiment.
Fig. 2 is the skeleton diagram for the multiband antenna that electronic equipment has.
Fig. 3 (A) is the stereoscopic figure of inductor bridge, and Fig. 3 (B) is the exploded perspective view of inductor bridge.
Fig. 4 is the skeleton diagram in the case that multiband antenna is inverted F shaped antenna.
Fig. 5 is that there are three the skeleton diagrams of the multiband antenna of antenna element for tool.
Specific embodiment
Fig. 1 is the vertical view for indicating a part of the construction inside the shell 10 of electronic equipment 1 involved in present embodiment
Figure.Electronic equipment 1 is, for example, mobile phone or plate PC etc..Shell 10 is formed by resin.
Electronic equipment 1 has multiband antenna, the multi-band communication being able to carry out under high frequency band and low-frequency band.In this reality
It applies in mode, high frequency band is about 2.0~2.7GHz frequency band, and low-frequency band is about 800MHz frequency band.
Electronic equipment 1 has high frequency with antenna element 11 and low frequency antenna element in order to carry out multi-band communication
12.The high frequency antenna element that antenna element 11 is for carrying out the communication under high frequency band (particularly, also comprising low high frequency band)
Part.The low frequency antenna element that antenna element 12 is for carrying out the communication under low high frequency band.High frequency antenna element 11 is this
One example of " high frequency band antenna element " involved in utility model.In addition, low frequency antenna element 12 is that this is practical new
One example of " low-frequency band antenna element " involved in type.
High frequency antenna element 11 and low frequency are formed with antenna element 12 by conductor.High frequency antenna element 11 and
Low frequency antenna element 12 is formed in a part of shell 10.Therefore, inside shell 10, setting high frequency day is had no need to ensure that
The space of thread elements 11 and low frequency antenna element 12.
High frequency antenna element 11 and low frequency antenna element 12 be formed in the phase of shell 10 mutually from position.And
And high frequency antenna element 11 and low frequency antenna element 12 are physically connected and are electrically connected by inductor bridge 20.
Inductor bridge 20 is thin flat shape and flexible cable.It is chatted in detail behind the specific structure of inductor bridge 20
It states, but inductor bridge 20 has the inductor component formed by wiring pattern in its cable inner.Since inductor bridge 20 is thin
Type tabular and there is flexibility, therefore even if space shell 10 inside is relatively narrow, can also make the climbing of inductor bridge 20.Cause
This, even if there are other component, circuit substrates etc. between high frequency antenna element 11 and low frequency antenna element 12, without abundant
Space, can also configure inductor bridge 20, and high frequency antenna element 11 and low frequency antenna element 12 are connected.
Printed wiring board 101, battery pack (not shown) etc. are accommodated in the inside of shell 10.It is taken in printed wiring board 101
Component needed for carrying the function of RFIC (Radio Frequency Integrated Circuit) 15, electronic equipment 1.
RFIC15 is wireless frequency integrated circuit, to high frequency antenna element 11 and low frequency antenna element 12, is carried out
For high frequency band communication and the power supply of low-frequency band communication.In detail, RFIC15 and high frequency are connected with antenna element 11.Also,
RFIC15 is powered high frequency antenna element 11.High frequency with antenna element 11 via inductor bridge 20 and with low frequency antenna
Element 12 connects.Therefore, even if in the case where carrying out the communication based on low frequency antenna element 12, RFIC15 also uses high frequency
Antenna element 11 is powered.In other words, RFIC15 is the power supply circuit shared by high frequency band and low-frequency band.RFIC15 is this
One example of " power supply " involved in utility model.
Fig. 2 is the skeleton diagram for the multiband antenna that electronic equipment 1 has.
As described, high frequency antenna element 11 and low frequency are connected with antenna element 12 by inductor bridge 20.And
And RFIC15 is powered to high frequency antenna element 11.
In the case where providing the electric current of high frequency band with antenna element 11 to high frequency from RFIC15, the impedance of inductor bridge 20
It is higher, it can be considered that low frequency antenna element 12 is separated from high frequency antenna element 11.In other words, in the communication of high frequency band,
Only high frequency antenna element 11 plays a role.
In the case where providing the electric current of low-frequency band with antenna element 11 to high frequency from RFIC15, the impedance of inductor bridge 20
Lower, high frequency antenna element 11 and low frequency antenna element 12 are linked by inductor bridge 20, can be considered an antenna element
Part.In other words, in the communication of low-frequency band, high frequency uses antenna element 11 also to play work as a part of low frequency antenna
With.Therefore, by adjusting the impedance of the length of inductor bridge 20 or inductor component, the communication frequency of low-frequency band can be changed
Rate.
In the case where carrying out the communication of low-frequency band, by high frequency antenna element 11 and low frequency with antenna element 12 come shape
At dipole antenna.Longer antenna part is capable of forming by using inductor bridge, is easy to constitute dipole antenna.By being set as dipole
Antenna is not needed for by the ground connection of antenna ground, not needing not needing antenna ground into the connection cables for ground connection,
It does not need to be grounded close to configuration.By the way that high frequency antenna element 11 to be set as to a part of dipole antenna, low frequency can be made to use
Antenna element 12 minimizes.
Hereinafter, being carried out to the structure for the inductor bridge 20 for linking high frequency antenna element 11 and low frequency with antenna element 12
Explanation.
Fig. 3 (A) is the stereoscopic figure of inductor bridge 20, and Fig. 3 (B) is the exploded perspective view of inductor bridge 20.
Inductor bridge 20 is for by high frequency antenna element 11 and the low frequency element that bridging connects between antenna element 12.
Inductor bridge 20 has: flat green body 21, the 1st interconnecting piece 22 and the 2nd interconnecting piece 23.
Flat green body 21 has flexibility as shown in Figure 1, being capable of bending.
1st interconnecting piece 22 is the interconnecting piece for being attached with high frequency antenna element 11.1st interconnecting piece 22 is bending
For the conductor plate of L-shaped shape, the 1st planar portions are fixed in the 1st end of flat green body 21.Vertical with the 1st planar portions
The 2nd planar portions, formed screw hole 24.Also, by being inserted into screw, inductor bridge 20 and high frequency antenna element 11 to screw hole 24
It is fixed.
2nd interconnecting piece 23 is the interconnecting piece for being attached with low frequency antenna element 12.2nd interconnecting piece 23 is bending
For the conductor plate of L-shaped shape, the 1st planar portions are fixed in the 2nd end of flat green body 21.Vertical with the 1st planar portions
The 2nd planar portions, formed screw hole 25.Also, by being inserted into screw, inductor bridge 20 and low frequency antenna element 12 to screw hole 25
It is fixed.
Alternatively, it is also possible to pass through solder, by inductor bridge 20 and high frequency antenna element 11 and low frequency antenna element
Part 12 is fixed.In addition, the 1st interconnecting piece 22 and the 2nd interconnecting piece 23 are also possible to mechanical connector.
As shown in Fig. 3 (B), green body 21 is laminated by resin base material 211,212,213 and is constituted.Resin base material 211,212,
213 be, for example, liquid crystal polymer (LCP).
In the interarea of resin base material 211, the conductive pattern 221 that the 1st interconnecting piece 22 is connected is formed in the 1st end side, and the 2nd connects
The conductive pattern 231 that socket part 23 is connected is formed in the 2nd end side.
In the interarea of resin base material 212, the inductor portion 30 based on conductive pattern 31 is constituted.Conductive pattern 31 is coil axis
Towards the spiral helicine conductive pattern in the direction (with the interarea of green body 21 vertical direction) vertical with the face of resin base material 212.
, can be lightening since inductor portion 30 is formed in green body 21 by conductive pattern, therefore small space can be configured at.
In addition, inductor portion 30 can also be made of discrete parts.
In addition, the interarea in resin base material 212 forms wiring pattern 26A.The 1st end and inductor portion of wiring pattern 26A
The outer circumference end of 30 conductive pattern 31 links, and the 2nd end connects via via hole conductor (interlayer connection conductor) with conductive pattern 221
Knot.
Wiring pattern 26B is formed in the interarea of resin base material 212.In addition, the interarea in resin base material 213 forms wiring diagram
Case 26C.The inner circumferential end of conductive pattern 31 is (not shown via via hole conductor.It is same below) and connect with the 1st end of wiring pattern 26C
Knot.The 2nd end of wiring pattern 26C links via via hole conductor with the 1st end of wiring pattern 26B.The 2nd of wiring pattern 26B
End links via via hole conductor with conductive pattern 231.
In addition, being respectively formed although not shown but in the lower surface of the upper surface of resin base material 211 and resin base material 213 anti-
Lose oxidant layer.In addition, the resist layer is not required, can not also be formed.
In this way, the green body 21 of inductor bridge 20 is thin flat shape, and there is flexibility.Therefore, even if shell 10 and print
Space between brush wiring plate 101 is relatively narrow, as shown in Figure 1, making inductor bridge 20 between shell 10 and printed wiring board 101
Climbing, can link high frequency antenna element 11 and low frequency antenna element 12.
In addition, forming inductor portion 30 by wiring pattern in the inside of green body 21, therefore do not need in inductor bridge
20 installing components, thus there is no inductor bridge 20 thickness thicken, flexibility is obstructed the case where.Thus, there is no inductors
The confined situation of the freedom degree of the configuration of bridge 20.Further, by by inductor portion 30 by spiral helicine conductive pattern shape
At, it can be in the case where not thickening the thickness of inductor bridge 20, raising inductance value.In addition, passing through 30 shape of inductor portion
At position to the 1st end side or the 2nd end side deviate and to be formed from the center of green body 21, antenna performance can be adjusted.
Further, since inductor bridge 20 is flexible thin flat shape, therefore as shown in Figure 1, can be along shell
10 wall surface configuration.In addition, thermoplastic resin is used for the feelings of substrate by the liquid crystal polymer used in the present embodiment like that
Under condition, if suppressing the processing that is pre-bent by heating after stacking, further it is easily configured.Inductor bridge 20 can as a result,
By inductor portion 30 and printed wiring board 101 separated by a distance in the form of configured.As a result, it is possible to inhibit inductor bridge 20 with
Stray capacitance is formed between printed wiring board 101.By inhibiting the generation of stray capacitance, the characteristic of multiband antenna can be avoided
Variation.Furthermore it is possible to avoid electric current via stray capacitance flow direction ground connection, multiband antenna functioned not as antenna can
It can property.
In addition, the high frequency connected by inductor bridge 20 antenna element 11 and low frequency also may be constructed list with antenna element 12
Pole antenna can also constitute inverted F shaped antenna.
Fig. 4 is the skeleton diagram in the case that multiband antenna is inverted F shaped antenna.
In this example, the end of the opposite side in the end connected with inductor bridge 20 in high frequency antenna element 11
It is connected to ground connection.In this case, by adjusting the interval of the part and the part of grounding connection connected RFIC15, Neng Goujin
Row impedance adjustment.By being set as inverted F shaped antenna, the low back and miniaturization of multiband antenna can be realized.
In addition, in the present embodiment, high frequency antenna element 11 and low frequency antenna element 12 constitute shell 10
A part, but also can be set in the inside of shell 10.In addition, although shell 10 is set as resin but it is also possible to be metal shell.
In this case, it if high frequency antenna element 11 and low frequency antenna element 12 to be set as to a part of metal shell, needs
Gap or insulating resin etc. are set therebetween, so that high frequency antenna element 11 and low frequency antenna element 12 and shell
The other parts of body do not contact.
It is further possible to which inductor portion is configured for plurality of positions in inductor bridge 20.In the situation
Under, by by inductor portion dissipate configuration, can not hinder inductor bridge 20 it is lightening in the case where, increase inductor bridge
20 inductance.
In addition, although electronic equipment 1 involved in present embodiment has high frequency with antenna element 11 and low frequency antenna
The two antennas of element 12, but can also have three or more antennas.
Fig. 5 is that there are three the skeleton diagrams of the multiband antenna of antenna element for tool.In this example, in low frequency antenna element
12, via inductor bridge 20, connect antenna element 13.Antenna element 13 is to be different from high frequency with antenna element 11 and low frequency day
The antenna element of the frequency band of thread elements 12.In this case, it by using inductor bridge 20, does not need to substantially ensure setting yet
The space of inductor bridge 20, can be realized space saving.
Symbol description-
1... electronic equipment
10... shell
11... high frequency antenna element
12... low frequency antenna element
13... antenna element
15...RFIC
20... inductor bridge
21... green body
22... the 1st interconnecting piece
23... the 2nd interconnecting piece
24,25... screw hole
26A, 26B, 26C... wiring pattern
30... inductor portion
31... conductive pattern
101... printed wiring board
211,212,213... resin base material
221,231... conductive pattern.
Claims (4)
1. a kind of multiband antenna, which is characterized in that have:
High frequency band antenna element；
Low-frequency band antenna element；
The high frequency band is connect with antenna element with the low-frequency band with antenna element by inductor bridge；With
Power supply is connect with the high frequency band with antenna element, carries out the power supply communicated for high frequency band and low-frequency band communicates,
The inductor bridge includes
The flat green body being made of resin base material；
The 1st interconnecting piece for being set to the green body and being connect with the high frequency band with antenna element；
The 2nd interconnecting piece for being set to the green body and being connect with the low-frequency band with antenna element；With
It is connected the inductor portion between the 1st interconnecting piece of the green body and the 2nd interconnecting piece.
2. multiband antenna according to claim 1, which is characterized in that
Dipole antenna is formed by high frequency band antenna element, low-frequency band antenna element and the inductor bridge
Line.
3. a kind of electronic equipment, which is characterized in that have:
Multiband antenna of any of claims 1 or 2；With
Shell stores the multiband antenna,
High frequency band antenna element and the low-frequency band constitute a part of the shell with antenna element.
4. electronic equipment according to claim 3, which is characterized in that
The electronic equipment has the circuit substrate for being accommodated in the shell,
The inductor portion of the inductor bridge is configured as separating from the circuit substrate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2016-141991 | 2016-07-20 | ||
| JP2016141991 | 2016-07-20 | ||
| PCT/JP2017/024819 WO2018016339A1 (en) | 2016-07-20 | 2017-07-06 | Multiband antenna and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209045772U true CN209045772U (en) | 2019-06-28 |
Family
ID=60992728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201790000787.9U Active CN209045772U (en) | 2016-07-20 | 2017-07-06 | Multiband antenna and electronic equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209045772U (en) |
| WO (1) | WO2018016339A1 (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4868128B2 (en) * | 2006-04-10 | 2012-02-01 | 日立金属株式会社 | ANTENNA DEVICE AND RADIO COMMUNICATION DEVICE USING THE SAME |
| JP5009240B2 (en) * | 2008-06-25 | 2012-08-22 | ソニーモバイルコミュニケーションズ株式会社 | Multiband antenna and wireless communication terminal |
| CN103081220B (en) * | 2010-08-31 | 2014-12-31 | 株式会社村田制作所 | Antenna device and wireless communication apparatus |
| US9246223B2 (en) * | 2012-07-17 | 2016-01-26 | Blackberry Limited | Antenna tuning for multiband operation |
| US9484621B2 (en) * | 2012-11-02 | 2016-11-01 | Nokia Technologies Oy | Portable electronic device body having laser perforation apertures and associated fabrication method |
| JP2015046463A (en) * | 2013-08-28 | 2015-03-12 | 株式会社村田製作所 | Flexible wiring board |
| JP6288299B2 (en) * | 2014-11-14 | 2018-03-07 | 株式会社村田製作所 | Antenna device and communication device |
-
2017
- 2017-07-06 CN CN201790000787.9U patent/CN209045772U/en active Active
- 2017-07-06 WO PCT/JP2017/024819 patent/WO2018016339A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018016339A1 (en) | 2018-01-25 |
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