CN207781900U - Antenna module and electronic device - Google Patents
Antenna module and electronic device Download PDFInfo
- Publication number
- CN207781900U CN207781900U CN201721868829.9U CN201721868829U CN207781900U CN 207781900 U CN207781900 U CN 207781900U CN 201721868829 U CN201721868829 U CN 201721868829U CN 207781900 U CN207781900 U CN 207781900U
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- switch
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- matching circuit
- frequency
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- 238000005086 pumping Methods 0.000 claims abstract description 17
- 238000010586 diagram Methods 0.000 description 12
- 238000004891 communication Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
This application provides a kind of antenna module and electronic devices.The antenna module includes radio-frequency signal source, band matching circuit and antenna radiator, the radio-frequency signal source is for generating pumping signal, the band matching circuit includes the frequency band match branch of multiple parallel connections, the frequency band match branch is used to adjust the frequency range for the electromagnetic wave signal that the antenna radiator is generated according to the pumping signal, the band matching circuit further includes adjusting branch, the equivalent capacity for adjusting branch and being used to adjust the band matching circuit, the offset of the frequency range of the electromagnetic wave signal generated with reducing the antenna radiator according to the pumping signal.
Description
Technical field
This application involves electronic device field more particularly to a kind of antenna modules and electronic device.
Background technology
Antenna radiator is a kind of converter, (logical in unbounded medium for being transformed to the guided wave transmitted on transmission line
Often free space) in the electromagnetic wave that transmits, or the electromagnetic wave transmitted in unbounded medium is converted to and can transmitted
A kind of component of the guided wave transmitted on line.In the electronic devices such as mobile phone, antenna radiator is generally included, to realize the electricity such as mobile phone
The communication function of sub-device.Further include band matching circuit in electronic device, band matching circuit includes the frequency range of N number of parallel connection
Match branch, wherein N is positive integer.When different frequency band match branches is electrically connected the antenna radiator, the day
Beta radiation body generates the electromagnetic wave signal of different frequency range according to the pumping signal.In frequency band match branch, generally include out
It closes, switch can be equivalent to a capacitance when disconnection, when the switch in all frequency band match branches disconnects, be equivalent to
N number of capacitance is in parallel, and the capacitance of N number of capacitance parallel connection is the sum of the capacitance of this N number of capacitance, therefore, when all frequency band matchs
Switch in branch causes the equivalent capacity of the band matching circuit very big when disconnecting, and then leads to antenna radiator root
Offset according to the frequency range of the electromagnetic wave signal of pumping signal generation is more serious, to affect the communication matter of the electronic device
Amount.
Invention content
This application provides a kind of antenna module, the antenna module includes radio-frequency signal source, band matching circuit and day
Beta radiation body, for the radio-frequency signal source for generating pumping signal, the band matching circuit includes the frequency range of multiple parallel connections
With branch, the frequency band match branch is for adjusting the electromagnetic wave signal that the antenna radiator is generated according to the pumping signal
Frequency range, the band matching circuit further include adjust branch, the adjustings branch be used for adjust the band matching circuit
Equivalent capacity, the offset of the frequency range of the electromagnetic wave signal generated with to reduce the antenna radiator according to the pumping signal.
Compared to the prior art, the antenna module of the application adjusts branch by increasing in the band matching circuit,
The branch that adjusts is used to adjust the equivalent capacity of the band matching circuit, and then reduces the antenna radiator according to sharp
The offset for encouraging the frequency range of the electromagnetic wave signal of signal generation, to improve the communication quality of the antenna module.
Present invention also provides a kind of electronic device, the electronic device includes the antenna module.
Description of the drawings
It, below will be to needed in embodiment in order to illustrate more clearly of the technical solution of the embodiment of the present application
Attached drawing is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the application, general for this field
For logical technical staff, without creative efforts, other drawings may also be obtained based on these drawings.
Fig. 1 is the structural schematic diagram of the electronic device in one preferred embodiment of the application.
Fig. 2 is the enlarged diagram of match circuit in Fig. 1.
Fig. 3 is equivalent circuit diagram when all first switches in Fig. 2 disconnect.
Fig. 4 is the structural schematic diagram of the electronic device in another preferred embodiment of the application.
Fig. 5 is the structural schematic diagram of the electronic device in the application another embodiment.
Fig. 6 is all first switches in frequency band match branch and the second switch adjusted in branch disconnects
When equivalent circuit diagram.
Specific implementation mode
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, those of ordinary skill in the art are obtained every other under the premise of not making the creative labor
Embodiment shall fall in the protection scope of this application.
In the description of the embodiment of the present application, it is to be understood that the orientation or positional relationship of the instructions such as term " thickness " is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description the application and simplifies to describe, rather than imply or refer to
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the application.
Referring to Fig. 1, Fig. 1 is the structural schematic diagram of the electronic device in one preferred embodiment of the application.The electronics dress
It sets 1 and includes but are not limited to smart mobile phone, internet device (mobile internet device, MID), e-book, portable
Formula broadcast station (Play Station Portable, PSP) or personal digital assistant (Personal Digital Assistant,
The communication equipments such as PDA).
The electronic device 1 includes shell 20.The shell 20 is usually the rear shell of the electronic device 1.The shell
20 include first part 20a, second part 20b and Part III 20c.The first part 20a, the second part 20b and
The material of the Part III 20c is metal material.Setting is spaced between the first part 20a and the second part 20b
To form gap, fills in the gap between the first part 20a and the second part 20b and do not have to electromagnetic wave signal
The material of shielding action, to form the first sealant 20d.It is spaced and sets between the second part 20b and the Part III 20c
It sets to form gap, the gap filling between the second part 20b and the Part III 20c does not have electromagnetic wave signal
The material of shielding action, to form the second sealant 20e.In general, the size of the first part 20a is less than the second part
The size of 20b, the size of the Part III 20c are less than the size of the second part 20b.The first part 20a can be with
An antenna radiator 300 is served as, the Part III 20c can also act as an antenna radiator 300, the second part
20b is formed as the ground of the electronic device 1.
The electronic device 1 includes antenna module 10.The antenna module 10 includes radio-frequency signal source 100, frequency band match
Circuit 200 and antenna radiator 300, the radio-frequency signal source 100 is for generating pumping signal, the band matching circuit 200
Include the frequency band match branch 210 of multiple parallel connections, the frequency band match branch 210 is for adjusting the antenna radiator 300
According to the frequency range for the electromagnetic wave signal that the pumping signal generates, the band matching circuit 200 further includes adjusting branch 220, institute
It states and adjusts the equivalent capacity that branch 220 is used to adjust the band matching circuit 200, to reduce the antenna radiator 300
According to the offset of the frequency range of the electromagnetic wave signal of pumping signal generation.
Compared to the prior art, the antenna module 10 of the application is adjusted by increasing in the band matching circuit 200
Branch 220, the branch 220 that adjusts is used to adjust the equivalent capacity of the band matching circuit 200, and then reduces the day
The offset of the frequency range for the electromagnetic wave signal that beta radiation body 300 is generated according to pumping signal, to improve the antenna module 10
Communication quality.
The frequency band match branch 210 includes concatenated first switch 211 and matching sub-circuit, the first switch
211 one end ground connection, the other end of the first switch 211 are electrically connected to one end of the matching sub-circuit, matching
The other end of circuit is electrically connected the adjusting branch 220, and the adjusting branch 220 is used in at least two frequency band match branch
First switch 211 in road 210 reduces the equivalent capacity of the band matching circuit 200 when disconnection.
Referring to Fig. 2, Fig. 2 is the enlarged diagram of match circuit in Fig. 1.In the present embodiment, the frequency band match
Circuit 200 includes n frequency band match branch 210, and correspondingly, the number of the first switch 211 is also n, matching
The number of circuit 212 is also n, and wherein n is the positive integer more than or equal to 2.In order to which description, n frequency band match branch will be facilitated
Road 210 is respectively designated as the first frequency band match branch 210 (1), the second frequency band match branch 210 (2) ..., the n-th frequency range
With branch 210 (n).Correspondingly, the first switch 211 in the first frequency band match branch 210 (1) is labeled as 211 (1), the first frequency
Matching sub-circuit in section matching branch 210 (1) is labeled as 212 (1)；First switch in second frequency band match branch 210 (2)
211 are labeled as 211 (2), and the matching sub-circuit in the second frequency band match branch 210 (2) is labeled as 212 (2)；......；N-th frequency
First switch 211 in section matching branch 210 (n) is labeled as 211 (n), the matching son electricity in the n-th frequency band match branch 210 (n)
Road sign is denoted as 212 (n).
When the first switch 211 in the frequency band match branch 210 disconnects, the first switch 211 of disconnection is equivalent
For a capacitance；When being disconnected there are two the first switch 211 in the frequency band match branch 210, it is equivalent to two electricity
Hold parallel connection, the capacitance of two capacitances in parallel is the sum of two capacitances；When having the in m frequency band match branches 210
When one switch 211 disconnects, it is equivalent to m capacitance parallel connection, the capacitance of m capacitance in parallel is the sum of m capacitance.Its
In, m is less than or equal to the number n of the frequency band match branch 210；......；When all in the frequency band match branch 210
When first switch 211 disconnects, it is equivalent to n capacitance parallel connection, the capacitance of n capacitance in parallel is the sum of n capacitance,
Therefore, when all first switches 211 in the frequency band match branch 210 disconnect, the frequency band match branch
Equivalent capacitance value after 210 parallel connections is very big.
For the convenience of description, when first switch 211 (1) disconnects in the first frequency band match branch 210 (1), equivalent electricity
Hold and be labeled as C1, capacitance is labeled as c1；When first switch 211 (2) disconnects in the second frequency band match branch 210 (2),
Equivalent capacity is labeled as C2, and capacitance is labeled as c2；......；First switch in the n-th frequency band match branch 210 (1)
When 211 (1) disconnect, equivalent capacity is labeled as C (n), and capacitance is labeled as c (n).Institute in the frequency band match branch 210
Equivalent circuit diagram when some first switches 211 disconnect please refers to Fig. 3.At this point, the frequency band match branch 210 etc.
Effect capacitance is denoted as CZ, and the equivalent capacitance value after 210 parallel connection of frequency band match branch is denoted as cz, then, cz=c1+c2+...+
cn。
The adjusting branch 220 includes capacitive device, and the capacitance of the capacitive device is less than predetermined capacitance, wherein
The equivalent capacitance value when first switch 211 that the predetermined capacitance is equal in all frequency band match branches 210 disconnects.
Referring to Fig. 4, Fig. 4 is the structural schematic diagram of the electronic device in another preferred embodiment of the application.In this implementation
In mode, the capacitive device is capacitance, and the capacitance is less than the predetermined capacitance, wherein the predetermined capacitive
The equivalent capacitance value when first switch 211 that value is equal in all frequency band match branches 210 disconnects.
It is the structural schematic diagram of the electronic device in the application another embodiment also referring to Fig. 5 and Fig. 6, Fig. 5；
Fig. 6 is all first switches in the frequency band match branch and the second switch adjusted in branch when disconnect
Equivalent circuit diagram.The adjusting branch 220 includes second switch 221, the equivalent capacity when second switch 221 disconnects
Value is less than predetermined capacitance, wherein the predetermined capacitance is equal to the first switch 211 in all frequency band match branches 210
Equivalent capacitance value when disconnecting.When the second switch 221 disconnects, the second switch 221 is equivalent to an electricity
Hold C0, capacitance c0.At this point, the capacitance after the series connection that the equivalent capacity of the band matching circuit 200 is C0 and CZ.
Therefore, the equivalent capacitance value cq=c0*cz/ (c0+cz) of the band matching circuit 200.It can be seen that cq is less than the cz,
Therefore, by increasing the adjusting branch 220 in the band matching circuit 200, the band matching circuit 200 is reduced
Equivalent capacity, to reduce the frequency range for the electromagnetic wave signal that the antenna radiator 300 is generated according to the pumping signal
Offset.
When the first switch 211 in all frequency band match branches 210 disconnects, the second switch 221 disconnects.
All first switches 211 are integrated in a switch module, and the second switch 221 is also integrated in the switch
In module.
It is to be appreciated that in other embodiments, all first switches 211 are integrated in a switch module, institute
Second switch 221 is stated to be located at except the switch module.
The antenna module 10 further includes impedance matching circuit 400, and the impedance matching circuit 400 is connected electrically in described penetrate
Between frequency source signal 100 and the antenna radiator 300, the impedance matching circuit 400 is for adjusting the radio-frequency signal source
100 output impedance, and the impedance matching circuit 400 is additionally operable to adjust the input impedance of the antenna radiator 300, so that
The matching degree of the output impedance of the radio-frequency signal source 100 and the input impedance of the antenna radiator 300 is obtained in preset matching
It spends in range.The antenna module 10 of the application by adjusting the output impedance and the input impedance matching degree so that institute
The input resistant matching for stating the output impedance and the antenna radiator 300 of radio-frequency signal source 100, to reduce the radiofrequency signal
The pumping signal that source 100 is sent out is transferred to the energy loss on the antenna radiator 300, improves the radio-frequency signal source 100
The signal transmission quality of the excitation sent out, to improve the communication quality for the electronic device 1 that the antenna module 10 is applied.
It is the embodiment of the embodiment of the present application above, it is noted that those skilled in the art are come
It says, under the premise of not departing from the embodiment of the present application principle, several improvements and modifications can also be made, these improvements and modifications
It is considered as the protection domain of the application.
Claims (10)
1. a kind of antenna module, which is characterized in that the antenna module includes radio-frequency signal source, band matching circuit and antenna spoke
Beam, for the radio-frequency signal source for generating pumping signal, the band matching circuit includes the frequency band match branch of multiple parallel connections
Road, the frequency band match branch are used to adjust the frequency for the electromagnetic wave signal that the antenna radiator is generated according to the pumping signal
Section, the band matching circuit further include adjusting branch, and the adjusting branch is for adjusting the equivalent of the band matching circuit
Capacitance, the offset of the frequency range of the electromagnetic wave signal generated with to reduce the antenna radiator according to the pumping signal.
2. antenna module as described in claim 1, which is characterized in that the frequency band match branch is opened including concatenated first
It closes and matching sub-circuit, the other end of one end ground connection of the first switch, the first switch is electrically connected to matching
The other end of one end of circuit, the matching sub-circuit is electrically connected the adjusting branch, and the adjusting branch is used at least two
First switch in a frequency band match branch reduces the equivalent capacity of the band matching circuit when disconnection.
3. antenna module as claimed in claim 2, which is characterized in that the adjusting branch includes capacitive device, the capacitive
The capacitance of device is less than predetermined capacitance, wherein the predetermined capacitance is equal to first in all frequency band match branches
Equivalent capacitance value when switch disconnects.
4. antenna module as claimed in claim 3, which is characterized in that the capacitive device is capacitance.
5. antenna module as claimed in claim 2, which is characterized in that the adjusting branch includes second switch, and described second
Equivalent capacitance value when switch disconnects is less than predetermined capacitance, wherein the predetermined capacitance is equal to all frequency band matchs
Equivalent capacitance value when first switch in branch disconnects.
6. antenna module as claimed in claim 5, which is characterized in that when the first switch in all frequency band match branches is equal
When disconnection, the second switch disconnects.
7. antenna module as claimed in claim 5, which is characterized in that all first switches are integrated in a switch module
In, the second switch is also integrated in the switch module.
8. antenna module as claimed in claim 5, which is characterized in that all first switches are integrated in a switch module
In, the second switch is located at except the switch module.
9. antenna module as described in claim 1, which is characterized in that the antenna module further includes impedance matching circuit, institute
It states impedance matching circuit to be connected electrically between the radio-frequency signal source and the antenna radiator, the impedance matching circuit is used for
The output impedance of the radio-frequency signal source is adjusted, and the impedance matching circuit is additionally operable to adjust the input of the antenna radiator
Impedance, so that the matching degree of the input impedance of the output impedance of the radio-frequency signal source and the antenna radiator is at default
With in degree range.
10. a kind of electronic device, which is characterized in that the electronic device includes day as claimed in any one of claims 1 to 9 wherein
Line component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868829.9U CN207781900U (en) | 2017-12-26 | 2017-12-26 | Antenna module and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721868829.9U CN207781900U (en) | 2017-12-26 | 2017-12-26 | Antenna module and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207781900U true CN207781900U (en) | 2018-08-28 |
Family
ID=63225001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721868829.9U Expired - Fee Related CN207781900U (en) | 2017-12-26 | 2017-12-26 | Antenna module and electronic device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207781900U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546305A (en) * | 2018-11-14 | 2019-03-29 | 维沃移动通信有限公司 | A kind of communication terminal |
| CN110649373A (en) * | 2019-09-19 | 2020-01-03 | 维沃移动通信有限公司 | Antenna structure and terminal |
| CN112151960A (en) * | 2019-06-28 | 2020-12-29 | 华为技术有限公司 | Foldable mobile terminal and antenna control method |
| CN112310610A (en) * | 2019-08-02 | 2021-02-02 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
| CN112751204A (en) * | 2020-12-29 | 2021-05-04 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
-
2017
- 2017-12-26 CN CN201721868829.9U patent/CN207781900U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109546305A (en) * | 2018-11-14 | 2019-03-29 | 维沃移动通信有限公司 | A kind of communication terminal |
| CN112151960A (en) * | 2019-06-28 | 2020-12-29 | 华为技术有限公司 | Foldable mobile terminal and antenna control method |
| CN112310610A (en) * | 2019-08-02 | 2021-02-02 | 青岛海信移动通信技术股份有限公司 | Mobile terminal |
| CN110649373A (en) * | 2019-09-19 | 2020-01-03 | 维沃移动通信有限公司 | Antenna structure and terminal |
| WO2021052127A1 (en) * | 2019-09-19 | 2021-03-25 | 维沃移动通信有限公司 | Antenna structure and terminal |
| CN112751204A (en) * | 2020-12-29 | 2021-05-04 | Oppo广东移动通信有限公司 | Antenna assembly and electronic equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: 523860 No. 18 Wusha Haibin Road, Chang'an Town, Dongguan City, Guangdong Province Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180828 |
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| CF01 | Termination of patent right due to non-payment of annual fee |