CN108232472A - Antenna module and electronic device - Google Patents

Antenna module and electronic device Download PDF

Info

Publication number
CN108232472A
CN108232472A CN201711458430.8A CN201711458430A CN108232472A CN 108232472 A CN108232472 A CN 108232472A CN 201711458430 A CN201711458430 A CN 201711458430A CN 108232472 A CN108232472 A CN 108232472A
Authority
CN
China
Prior art keywords
module
antenna radiator
antenna
switch
signal
Prior art date
Application number
CN201711458430.8A
Other languages
Chinese (zh)
Inventor
刘国林
Original Assignee
广东欧珀移动通信有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东欧珀移动通信有限公司 filed Critical 广东欧珀移动通信有限公司
Priority to CN201711458430.8A priority Critical patent/CN108232472A/en
Publication of CN108232472A publication Critical patent/CN108232472A/en

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00Antennas with active circuits or circuit elements integrated within them or attached to them
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/2258Supports; Mounting means by structural association with other equipment or articles used with computer equipment
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00Details of, or arrangements associated with, antennas
    • H01Q1/12Supports; Mounting means
    • H01Q1/22Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01QANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/30Arrangements for providing operation on different wavebands
    • H01Q5/307Individual or coupled radiating elements, each element being fed in an unspecified way

Abstract

This application provides a kind of antenna module and electronic devices.The antenna module includes radio-frequency signal source, mode adjustment module and antenna radiator, the radio-frequency signal source is used to generate pumping signal, for the mode adjustment module for adjusting the mode that the pumping signal is loaded on the antenna radiator, the antenna radiator sends out the electromagnetic wave signal of different frequency range according to the difference for the mode that pumping signal is loaded on the antenna radiator.The bandwidth of the antenna module of the application is larger.

Description

Antenna module and electronic device

Technical field

This application involves electronic device field more particularly to a kind of antenna modules and electronic device.

Background technology

Antenna is a kind of converter, (is typically certainly for being transformed to the guided wave transmitted on transmission line in unbounded medium By space) in transmit electromagnetic wave or the electromagnetic wave transmitted in unbounded medium is converted to and can passed on the transmission line A kind of device of defeated guided wave.In the electronic devices such as mobile phone, antenna is generally included, to realize the communication of the electronic devices such as mobile phone Function.However, in existing electronic device, antenna receives the pumping signal (guided wave) that driving source is sent out and is swashed according to described When encouraging signal and be converted to electromagnetic wave signal (electromagnetic wave), achieved frequency range is more single, so that the electronics The communication efficiency of device is bad.

Invention content

This application provides a kind of antenna module, the antenna module include radio-frequency signal source, mode adjustment module and Antenna radiator, the radio-frequency signal source for generating pumping signal, for adjusting the excitation believe by the mode adjustment module The mode number being loaded on the antenna radiator, the antenna radiator are loaded into the antenna radiator according to pumping signal On the difference of mode send out the electromagnetic wave signal of different frequency range.

Compared to the prior art, the antenna module of the application includes mode adjustment module, the mode adjustment module tune The whole pumping signal is loaded into the mode on the antenna radiator, so that the antenna radiator is according to the antenna spoke The electromagnetic wave that beam sends out different frequency range according to the difference for the mode that the pumping signal is loaded on the antenna radiator is believed Number, and then widened the bandwidth of the electromagnetic wave signal of the antenna radiator radiation.

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 attached drawings are can also be obtained according to these attached drawings.

Fig. 1 is the structure diagram of electronic device that one embodiment of the application provides.

Fig. 2 is the electrical block diagram of the mode adjustment module in Fig. 1.

Fig. 3 is the structure diagram of the frequency band match module in Fig. 1.

Specific embodiment

Below in conjunction with the attached drawing in the embodiment of the present application, the technical solution in the embodiment of the present application is carried 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 position relationship of the instructions such as term " thickness " are Based on orientation shown in the drawings or position relationship, it is for only for ease of description the application and simplifies description rather than imply or refer to Show that signified device or element there must be specific orientation, with specific azimuth configuration and operation, therefore it is not intended that right The limitation of the application.

Referring to Fig. 1, Fig. 1 is the structure diagram of electronic device 1 that one embodiment of the application provides.The electronic device 1 includes but are not limited to smart mobile phone, internet device (mobile internet device, MID), e-book, portable Broadcast station (Play Station Portable, PSP) or personal digital assistant (Personal Digital Assistant, The communication equipments such as PDA).

The electronic device 1 includes housing 20.The housing 20 is usually the rear shell of the electronic device 1.The housing 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.It is arranged at intervals between the first part 20a and the second part 20b To form gap, fill 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 puts 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, mode adjustment Module 200 and antenna radiator 300, the radio-frequency signal source 100 are used to generate pumping signal, the mode adjustment module 200 are used to adjust the mode that the pumping signal is loaded on the antenna radiator 300,300 basis of the antenna radiator The difference for the mode that pumping signal is loaded on the antenna radiator 300 sends out the electromagnetic wave signal of different frequency range.In this reality It applies in mode, the antenna radiator 300 is the Part III 20c.It is to be appreciated that in other embodiments, it is described Antenna radiator 300 or the first part 20a.

Compared to the prior art, the antenna module 10 of the application includes mode adjustment module 200, the mode adjustment mould Block 200 adjusts the mode that the pumping signal is loaded on the antenna radiator 300, so that the antenna radiator 300 The different of the mode being loaded on the antenna radiator 300 according to the pumping signal according to the antenna radiator 300 are sent out Go out the electromagnetic wave signal of different frequency range, and then widen the bandwidth for the electromagnetic wave signal that the antenna radiator 300 radiates.

Also referring to Fig. 2, Fig. 2 is the electrical block diagram of the mode adjustment module 200 in Fig. 1.The pattern tune Mould preparation block 200 includes the first capacitance C1, the second capacitance C2, first switch SW1 and second switch SW2, the first capacitance C1 packets It includes first end 210a and second end 210b, the second capacitance C2 includes third end 220a and the 4th end 220b, the first end 210a is electrically connected the antenna radiator 300, and the second end 210b is electrically connected the third end 220a, the 4th end 220b The pumping signal is received, the first switch SW1 is connected between the first end 210a and second end 210b, and described second Switch SW2 is connected between the first end 210a and the 4th end 220b, and the first switch SW1 receives the first control letter Number, and be switched on or off under the control of the described first control, the second switch SW2 receptions second control signal, and Be switched on or off under the control of the second control signal, the conducting of the first switch SW1 and the second switch SW2 or The mode that person disconnects is different, and then adjusts the mode that the pumping signal is loaded on the antenna radiator 300.

When the first switch SW1 and the second switch SW2 are disconnected, the pumping signal passes through the described first electricity Hold C1 and the second capacitance C2 to be capacitively coupled on the antenna radiator 300, so that 300 basis of the antenna radiator The pumping signal radiates the electromagnetic wave signal of the first default frequency range.When the first switch SW1 and the second switch SW2 all During disconnection, the first capacitance C1 and the second capacitance C2 series connection, the first capacitance C1 and the second capacitance C2 connect It is electrically connected later with the antenna radiator 300.The capacitance of first capacitance C1 is labeled as c1, the electricity of the second capacitance C2 Capacitance is labeled as c2, then the capacitance after the first capacitance C1 and the second capacitance C2 series connection is (c1*c2)/(c1+ c2).At this point, the pumping signal be capacitively coupled to by the first capacitance C1 and the second capacitance C2 couplings of series connection it is described On antenna radiator 300, and then the equivalent electrical length for changing the antenna radiator 300 (is denoted as:First equivalent electrical length), So that the antenna radiator 300 radiates the electromagnetic wave signal of the first default frequency range according to the pumping signal.

When the first switch SW1 is connected, and the second switch SW2 is disconnected, the pumping signal passes through described second Capacitance C2 is capacitively coupled on the antenna radiator 300, so that the antenna radiator 300 is according to the pumping signal spoke Penetrate the electromagnetic wave signal of the second default frequency range.When the first switch SW1 is connected, will the first capacitance C1 it is short-circuit, described the Two switch SW2 are disconnected, and the second capacitance C2 is electrically connected with the antenna radiator 300.The pumping signal passes through described Two capacitance C2 are capacitively coupled on the antenna radiator 300, and then change the equivalent electrical length of the antenna radiator 300 It (is denoted as:Second equivalent electrical length) so that the antenna radiator 300 radiates the electricity of the second frequency range according to the pumping signal Magnetostatic wave signal.

When the second switch SW2 is connected, the pumping signal is directly coupled on the antenna radiator 300, with So that the antenna radiator 300 presets the electromagnetic wave signal of frequency range according to pumping signal radiation third.It opens when described two When closing conducting, no matter the first switch SW1 is switched on or off, and the first capacitance C1 and the second capacitance C2 are short Road, the first capacitance C1 and the second capacitance C2 can not be linked into the antenna radiator 300, at this point, the excitation Signal is directly coupled on the antenna radiator 300, at this point, the equivalent electrical length of the antenna radiator 300 is third etc. Electrical length is imitated, the antenna radiator 300 presets the electromagnetic wave signal of frequency range according to pumping signal radiation third.

Wherein, since the antenna radiator 300 loads the mode difference of the pumping signal, described first etc. It is different to imitate electrical length, the second equivalent electrical length and the third equivalent electrical length, therefore, the described first default frequency It is each unequal that section, the second default frequency range and the third preset frequency range.Typically, when on the antenna radiator 300 When loading pumping signal by the capacitively coupled mode of capacitance, the capacitance of the capacitance is smaller, then the aerial radiation The equivalent electrical length of body 300 is longer, then, the frequency range of electromagnetic wave that the antenna radiator 300 can radiate is lower;It is appreciated that Ground, when pumping signal is loaded by the capacitively coupled mode of capacitance on the antenna radiator 300, the electricity of the capacitance Capacitance is bigger, then the equivalent electrical length of the antenna radiator 300 is shorter, then, and the electricity that the antenna radiator 300 can radiate The frequency range of magnetic wave is higher.

Also referring to Fig. 3, Fig. 3 is the structure diagram of the frequency band match module 400 in Fig. 1.The antenna module 10 At least one frequency band match module 400 is further included, the frequency band match module 400 is used to adjust 300 spoke of antenna radiator The frequency range for the electromagnetic wave signal penetrated.The frequency band match module 400 includes band matching circuit 410 and third switchs SW3, described 410 one end of band matching circuit is grounded, and the other end of the band matching circuit 410 switchs SW3 by the third and receives institute Pumping signal is stated, when third switch SW3 conductings, the band matching circuit 410 is electrically connected with the antenna radiator 300 It connects, when third switch SW3 is disconnected, the band matching circuit 410 is disconnected with the antenna radiator 300;The day The frequency range of electromagnetic wave signal that beta radiation body 300 is radiated in third switch SW3 conductings exists with the antenna radiator 300 The frequency range of electromagnetic wave signal that the third switch SW3 is radiated when disconnecting is different.

When the number of the frequency band match module 400 is multiple, the frequency band match electricity in each frequency band match module 400 When road is independently accessed the antenna radiator 300, the frequency range for the electromagnetic wave that the antenna radiator 300 radiates is different.In this reality It applies in mode, is illustrated so that the number of the frequency band match module 400 is two as an example.In order to facilitate differentiation, two frequency ranges Matching module 400 is denoted as the first frequency band match module 400a and the second frequency band match module 400b respectively.First frequency range Include band matching circuit 410a and third switch SW3a with module 400a, when third switch SW3a conductings, the frequency Section match circuit 410a accesses the antenna radiator 300, at this point, the equivalent electrical length of the antenna radiator 300 is changed, The antenna radiator 300 radiates the electromagnetic wave signal of the 5th default frequency range according to the pumping signal;When the third switchs When SW3a is disconnected, the match circuit 410a is disconnected with the antenna radiator 300, and the antenna radiator 300 is according to described Pumping signal radiates the electromagnetic wave signal of the 6th default frequency range.The second frequency band match module 400b includes band matching circuit 410b and third switch SW3b, when third switch SW3b conductings, the band matching circuit 410b accesses the antenna Radiator 300, at this point, changing the equivalent electrical length of the antenna radiator 300, the antenna radiator 300 is according to described Pumping signal radiates the electromagnetic wave signal of the 7th default frequency range;When third switch SW3b is disconnected, the match circuit 410b is disconnected with the antenna radiator 300, and the antenna radiator 300 radiates the 8th default frequency range according to the pumping signal Electromagnetic wave signal.Band matching circuit in each frequency band match module 400 is independently accessed the antenna radiator 300 When, the frequency range for the electromagnetic wave that the antenna radiator 300 radiates is different.When the frequency band match module 400 is multiple, pass through The various combination of band matching circuit in each frequency band match module 400 is electrically connected on the antenna radiator 300, with Make the equivalent electrical length of the adjustment antenna radiator 300, with this, have adjusted the electromagnetic wave that the antenna radiator 300 radiates The frequency range of signal.

It is to be appreciated that any one mode of the band matching circuit can be arbitrary with mode adjustment module 200 A kind of mode is combined, so that the antenna radiator 300 radiates the electromagnetic wave signal of more multiband, and then improves institute State the bandwidth of antenna module 10.

The antenna module further includes impedance matching module 700, is penetrated described in 700 one end of impedance matching module electrical connection Frequency source signal 100, the other end are electrically connected the mode adjustment module 200, and the impedance matching module 700 is used to adjust described penetrate The output impedance of frequency source signal 100, and the impedance matching module 700 is additionally operable to adjust 200 He of mode adjustment module The input impedance of the antenna radiator 300, to adjust the matching degree of the output impedance and the input impedance.The present invention's Antenna module 10 is by adjusting the output impedance and the matching degree of the input impedance so that the radio-frequency signal source 100 Output impedance and the mode adjustment module 200 and the input resistant matching of the antenna radiator 300, to reduce the radio frequency The pumping signal that signal source 100 is sent out is transferred to the energy loss on the antenna radiator 300, improves the radio-frequency signal source The signal transmission quality of 100 pumping signals sent out, to improve the communication matter for the electronic device 1 that the antenna module 10 is applied Amount.

Referring to Fig. 1, the housing 20 further includes the first connector 500, and first connector 500 is electrically connected institute Mode adjustment module 200 and the antenna radiator 300 are stated, to realize the mode adjustment module 200 and the aerial radiation Electrical connection between body 300.

The housing 20 further includes at least one second connector 600.Two the second connectors 600 are illustrated in Fig. 1, Described connector one end connects the second part 20b, and another part connects the Part III 20c.Described two connectors Between 600 every setting.Second connector 600 be used for by the antenna radiator 300 be electrically connected.

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 the embodiment of the present application principle is not departed from, 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, mode adjustment module and antenna Radiator, for generating pumping signal, the mode adjustment module adds the radio-frequency signal source for adjusting the pumping signal The mode being downloaded on the antenna radiator, the antenna radiator are loaded into according to pumping signal on the antenna radiator The difference of mode sends out the electromagnetic wave signal of different frequency range.
2. antenna module as described in claim 1, which is characterized in that the mode adjustment module includes the first capacitance, second Capacitance, first switch and second switch, first capacitance include first end and second end, and second capacitance includes third end And the 4th end, the first end are electrically connected the antenna radiator, the second end is electrically connected the third end, the 4th end The pumping signal is received, the first switch is connected between the first end and second end, and the second switch is connected on Between the first end and the 4th end, the first switch receives first control signal, and in the control of the described first control It is switched on or off under system, the second switch receives second control signal, and is led under the control of the second control signal The mode being switched on or off of logical or disconnection, the first switch and the second switch is different, and then adjusts described sharp Encourage the mode in signal loading to the antenna radiator.
3. antenna module as claimed in claim 2, which is characterized in that when the first switch and the second switch all disconnect When, the pumping signal is capacitively coupled to by first capacitance and second capacitance on the antenna radiator, so that Obtain the electromagnetic wave signal that the antenna radiator radiates the first default frequency range according to the pumping signal.
4. antenna module as claimed in claim 2, which is characterized in that when the first switch is connected, the second switch breaks When opening, the pumping signal is capacitively coupled to by second capacitance on the antenna radiator, so that the antenna spoke Beam radiates the electromagnetic wave signal of the second default frequency range according to the pumping signal.
5. antenna module as claimed in claim 2, which is characterized in that when the second switch is connected, the pumping signal It is directly coupled on the antenna radiator, so that the antenna radiator radiates third according to the pumping signal presets frequency The electromagnetic wave signal of section.
6. antenna module as described in claim 1, which is characterized in that the antenna module further includes impedance matching module, institute It states impedance matching module one end and is electrically connected the radio-frequency signal source, the other end is electrically connected the mode adjustment module, the impedance Matching module is used to adjust the output impedance of the radio-frequency signal source, and the impedance matching module is additionally operable to adjust the mould Formula adjusts the input impedance of module and the antenna radiator, to adjust the matching of the output impedance and the input impedance Degree.
7. antenna module as claimed in claim 2, which is characterized in that the antenna module further includes at least one frequency band match Module, the frequency band match module are used to adjust the electromagnetic wave signal that the antenna radiator is radiated according to the pumping signal Frequency range.
8. antenna module as claimed in claim 7, which is characterized in that the frequency band match module include band matching circuit and Third switchs, and band matching circuit one end ground connection, the other end of the band matching circuit is connect by third switch The pumping signal is received, when the third switch conduction, the band matching circuit is electrically connected with the antenna radiator, when When the third switch disconnects, the band matching circuit is disconnected with the antenna radiator;The antenna radiator is described The frequency range of the electromagnetic wave signal radiated during third switch conduction is radiated with the antenna radiator when the third is switched and disconnected Electromagnetic wave signal frequency range it is different.
9. antenna module as claimed in claim 8, which is characterized in that when the number of the frequency band match module is multiple, When each frequency band match mould band matching circuit in the block is independently accessed the antenna radiator, the antenna radiator radiation The frequency range of electromagnetic wave is different.
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.
CN201711458430.8A 2017-12-27 2017-12-27 Antenna module and electronic device CN108232472A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201711458430.8A CN108232472A (en) 2017-12-27 2017-12-27 Antenna module and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201711458430.8A CN108232472A (en) 2017-12-27 2017-12-27 Antenna module and electronic device

Publications (1)

Publication Number Publication Date
CN108232472A true CN108232472A (en) 2018-06-29

Family

ID=62645664

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201711458430.8A CN108232472A (en) 2017-12-27 2017-12-27 Antenna module and electronic device

Country Status (1)

Country Link
CN (1) CN108232472A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103682572A (en) * 2012-08-29 2014-03-26 宏达国际电子股份有限公司 Mobile device
CN106252880A (en) * 2016-08-31 2016-12-21 宇龙计算机通信科技(深圳)有限公司 Antenna assembly and mobile terminal

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103682572A (en) * 2012-08-29 2014-03-26 宏达国际电子股份有限公司 Mobile device
CN106252880A (en) * 2016-08-31 2016-12-21 宇龙计算机通信科技(深圳)有限公司 Antenna assembly and mobile terminal

Similar Documents

Publication Publication Date Title
US20160301135A1 (en) Dual feed antenna
US20170288304A1 (en) High isolation antenna system
US5754145A (en) Printed antenna
EP1368855B1 (en) Antenna arrangement
US6147653A (en) Balanced dipole antenna for mobile phones
US5153600A (en) Multiple-frequency stacked microstrip antenna
US7324049B2 (en) Miniaturized ultra-wideband microstrip antenna
US7084823B2 (en) Integrated front end antenna
JP5560802B2 (en) Communication device
US7151497B2 (en) Coaxial antenna system
US6304220B1 (en) Antenna with stacked resonant structures and a multi-frequency radiocommunications system including it
CN1274059C (en) Antenna arrangement
US4723305A (en) Dual band notch antenna for portable radiotelephones
US7405699B2 (en) Multiple input multiple output antenna
US9577332B2 (en) Electronic device and multi-band antenna
CN1039860C (en) A balun apparatus and method of designing same
CN204596947U (en) Mobile terminal antenna and mobile terminal
KR101690563B1 (en) Compact antenna system
CN100481614C (en) Tunable dual band antenna system
CN103141031B (en) Impedance converting circuit and communication terminal apparatus
US6239755B1 (en) Balanced, retractable mobile phone antenna
US6911940B2 (en) Multi-band reconfigurable capacitively loaded magnetic dipole
CN103843194B (en) Printed circuit board antenna and terminal
EP1310014B1 (en) Wireless terminal
US20080174508A1 (en) Array antenna apparatus having at least two feeding elements and operable in multiple frequency bands

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information

Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18

Applicant after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., Ltd.

Address before: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18

Applicant before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORP., Ltd.