CN104466361B - A kind of mobile phone and its antenna - Google Patents
A kind of mobile phone and its antenna Download PDFInfo
- Publication number
- CN104466361B CN104466361B CN201410757201.6A CN201410757201A CN104466361B CN 104466361 B CN104466361 B CN 104466361B CN 201410757201 A CN201410757201 A CN 201410757201A CN 104466361 B CN104466361 B CN 104466361B
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- inductance
- high frequency
- radiating element
- frequency antenna
- antenna
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- 239000002184 metal Substances 0.000 claims abstract description 27
- 229910052751 metal Inorganic materials 0.000 claims abstract description 27
- 230000005855 radiation Effects 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 230000004075 alteration Effects 0.000 claims 1
- CNQCVBJFEGMYDW-UHFFFAOYSA-N lawrencium atom Chemical compound [Lr] CNQCVBJFEGMYDW-UHFFFAOYSA-N 0.000 description 2
- 230000007774 longterm Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Abstract
The present invention is applied to field of mobile terminals, and the present invention provides a kind of mobile phone and its antenna, and it is with including feed end, low pass filter, low-frequency antenna radiating element, switch element, at least one inductance and complete machine metal；Feed end connects the input of low pass filter, the first end of the output end connection low-frequency antenna radiating element of low pass filter, the input of second end connecting valve unit of low-frequency antenna radiating element, one output end of the first end connecting valve unit of each inductance, the second end connection complete machine metal of each inductance；Switch element adjusts the low-frequency resonant frequency of antenna by gating different inductance, low-and high-frequency is separated by way of couple feed and debugged respectively, influence when avoiding debugging restructural low frequency again to high frequency, and different inductance is switched by switch element and forms different antenna loops to realize that obtaining multiple resonant frequencies covers 4G low frequency bands.
Description
Technical field
The invention belongs to field of mobile terminals, more particularly to a kind of mobile phone and its antenna.
Background technology
With the arrival in 4G epoch, LTE (Long Term Evolution, Long Term Evolution) be not a concept and
It is a trend, due to the increase of 4G bandwidth, requirement for mobile terminal antenna is also to be significantly improved relative to 3G,
More particularly to the requirement of broad band low frequency covering is more difficult to, low frequency 704 can be covered simultaneously by how being designed on mobile phone
It is a very big challenge to 960MHz and high frequency 1710 to 2690MHz antenna, solution of the prior art is general
Earth point or match circuit are switched by RF converters to realize covering LTE frequency ranges, but these schemes can change height simultaneously
The resonant frequency of low frequency and influence the performance of mobile phone, in summary, in the prior art exist by RF converters switch earth point
Or match circuit covers the problem of LTE frequency ranges cause to influence handset capability to realize.
The content of the invention
It is an object of the invention to provide a kind of mobile phone and its antenna, passes through RF converters to solve to exist in the prior art
Switching earth point or match circuit cover the problem of LTE frequency ranges cause to influence handset capability to realize.
The present invention provides a kind of antenna, and the antenna includes feed end, low pass filter, low-frequency antenna radiating element, opened
With closing unit, at least one inductance and complete machine metal；
The feed end connects the input of the low pass filter, and the output end connection of the low pass filter is described low
The first end of frequency antenna radiation unit, the second end of the low-frequency antenna radiating element connect the input of the switch element,
The first end of each inductance connects an output end of the switch element, described in the second end connection of each inductance
Complete machine metal；
The switch element adjusts the low-frequency resonant frequency of the antenna by gating different inductance.
At least one inductance includes the first inductance, the second inductance, the 3rd inductance and the 4th inductance；
The first end of first inductance connects the first output end of the switch element, the second end of first inductance
With connecting the complete machine metal, the second output end of the first end connection switch element of second inductance, described second
With connecting the complete machine metal, the first end of the 3rd inductance connects the 3rd output of the switch element at second end of inductance
End, with connecting the complete machine metal, the first end connection switch of the 4th inductance is single at the second end of the 3rd inductance
4th output end of member, the second end of the 4th inductance is with connecting the complete machine metal.
The switch element is the throw switch of hilted broadsword four, and four contacts of the throw switch of hilted broadsword four are respectively that the switch is single
The first output end, the second output end, the 3rd output end and the 4th output end of member.
The antenna also includes circuit board, the low pass filter, the low-frequency antenna radiating element, the switch element
And at least one inductance is arranged on the side of the circuit board, the feed end is arranged on the another of the circuit board
Side, the circuit board are provided with via, and the feed end exports electric feed signal by the via to the low pass filter.
The antenna is with also including high frequency antenna radiating element, connector and complete machine metal；
Form high frequency the feed end, the high frequency antenna radiating element, the connector and the complete machine metal
Antenna loop, the connector form different high-frequency resonant frequencies when connecting the diverse location on the complete machine metal ground.
The high frequency antenna radiating element includes the first high frequency antenna radiating element and the second high frequency antenna radiating element, institute
State the first high frequency antenna radiating element and the second high frequency antenna radiating element is separately positioned on the both sides of the circuit board, and
Capacitance Coupled is formed by the circuit board, the first high frequency antenna radiating element connects the connector, and described second is high
Frequency antenna radiation unit connects the feed end.
The antenna also includes the 3rd high frequency antenna radiating element, the 3rd high frequency antenna radiating element connection described the
Two high frequency antenna radiating elements.
Another object of the present invention, which also resides in, provides a kind of mobile phone, and it is built-in with above-mentioned antenna.
The present invention provides a kind of mobile phone and its antenna, separates low-and high-frequency by way of couple feed and is adjusted respectively
Examination, influence when avoiding debugging restructural low frequency again to high frequency, the influence when debugging high frequency to low frequency is equally avoided so as to letter
Change debugging, make debugging more efficient, in addition, further being reduced by low pass filter of connecting when debugging high frequency to the shadow of low frequency
Ring, and different inductance is switched by switch element and forms different antenna loops to realize that obtaining multiple resonant frequencies covers 4G
Low frequency band.
Brief description of the drawings
Technical scheme in order to illustrate the embodiments of the present invention more clearly, below will be to embodiment or description of the prior art
In the required accompanying drawing used be briefly described, it should be apparent that, drawings in the following description be only the present invention some
Embodiment, for those of ordinary skill in the art, without having to pay creative labor, can also be according to these
Accompanying drawing obtains other accompanying drawings.
Fig. 1 is a kind of structural representation of antenna provided in an embodiment of the present invention；
Fig. 2 is a kind of structural representation for antenna that another embodiment of the present invention provides；
Fig. 3 is a kind of structural representation for antenna that another embodiment of the present invention provides.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
In order to illustrate technical scheme, illustrated below by specific embodiment.
A kind of antenna of the embodiment of the present invention, referring to Fig. 1, including feed end 101, low pass filter 102, low-frequency antenna spoke
With penetrating unit 103, switch element 104, at least one inductance and complete machine metal 105, feed end 101 connects low pass filter
102 input, the first end of the output end connection low-frequency antenna radiating element 103 of low pass filter 102, low-frequency antenna radiation
The input of second end connecting valve unit 104 of unit 103, the one of the first end connecting valve unit 104 of each inductance
Individual output end, each inductance the second end connection complete machine metal 105, switch element 104 by gate different inductance with
Adjust the low-frequency resonant frequency of antenna.
For low pass filter 102, its can be discrete component form can also be distributive constitution LPF
Device 102, probably in 1GHz, it act as resonant frequency：First, high frequency is separated to low frequency by the low pass low pass filter 102
Influence, reduce the coupling of low-and high-frequency while so that low-and high-frequency is independently opened；Second, the electrical length of low frequency can be increased to reduce antenna institute
The volume needed.
For inductance, include the inductance of multiple different values, these inductance and low-frequency antenna radiation fin connect and compose a day
Line loop, the electrical length for changing antenna by switching different induction value changes low-frequency resonant frequency, whole so as to cover 4G low frequencies
Frequency range is without influenceing high-frequency resonant.
In the present embodiment, specifically, at least one inductance includes the first inductance, the second inductance, the 3rd inductance and the
Four inductance；First output end of the first end connecting valve unit 104 of the first inductance, the second end connection complete machine gold of the first inductance
Possession 105, the second output end of the first end connecting valve unit 104 of the second inductance, the second end connection complete machine of the second inductance
Metal 105, the 3rd output end of the first end connecting valve unit 104 of the 3rd inductance, the 3rd inductance the second end connection it is whole
Machine metal 105, the 4th output end of the first end connecting valve unit 104 of the 4th inductance, the 4th inductance the second end connection
Complete machine metal 105.
For switch element 104, it is used to gate different inductance, and switch element can pass through the letter of receive and control module
Number it is operated, can also carries out selecting different inductance by manual debugging.In the present embodiment, it is preferred that switch element
104 be the throw switch of hilted broadsword four, and four contacts of the throw switch of hilted broadsword four are respectively the first output end of switch element 104, second defeated
Go out end, the 3rd output end and the 4th output end.
Further, antenna also includes circuit board, low pass filter 102, low-frequency antenna radiating element 103, switch element
104 and at least one inductance be arranged on the side of circuit board, feed end 101 is arranged on the opposite side of circuit board, on circuit board
Provided with via, feed end 101 exports electric feed signal by via to low pass filter 102.
Further, antenna also include high frequency antenna radiating element, connector 121 and complete machine metal 105；Feed end
101st, 105 high frequency antenna loops are formed, connector 121 is even high frequency antenna radiating element, connector 121 and complete machine metal
Different high-frequency resonant frequencies is formed during 105 diverse location with connecing complete machine metal.
Specifically, high frequency antenna radiating element includes the first high frequency antenna radiating element 122 and the second high frequency antenna radiates
Unit 123, the first high frequency antenna radiating element 122 and the second high frequency antenna radiating element 123 are separately positioned on the two of circuit board
Side, and Capacitance Coupled, the first high frequency antenna radiating element 122 connection connector 121, the second high frequency antenna are formed by circuit board
Radiating element 123 connects feed end 101.
Further, antenna also includes the 3rd high frequency antenna radiating element 124, and the 3rd high frequency antenna radiating element 124 connects
Connect the second high frequency antenna radiating element 123.
In the present embodiment, the first high frequency antenna radiating element 122 and the second high frequency antenna radiating element 123 pass through PWB
Thickness separate one 0.1 electric capacity to 0.5pF of equivalent string, and form a couple feed high frequency antenna, the second high frequency antenna
The high frequency antenna radiating element 124 of radiating element 123 and the 3rd is printed on PWB, and the first high frequency antenna radiating element 122 designs
Support is either on D-cover, and by being connected with connector 121, wherein connector 121 is printed on PWB and is grounded, and such the
One high frequency antenna radiating element 122, the second high frequency antenna radiating element 123 and the 3rd high frequency antenna radiating element 124 are just formed
One couple feed IFA antenna, change the position-adjustable high frequency bandwidth that connector 121 is grounded, in addition, high by adjustment second
The position shape of frequency antenna radiation unit 123 can change resonant frequency and band of the coupling capacitance amount so as to adjustable high frequency
Width, the position length by adjusting the 3rd high frequency antenna radiating element 124 can adjust the resonant frequency and bandwidth of high frequency.
Another embodiment of the present invention provides a kind of mobile phone, including above-mentioned built-in antenna of mobile phone.
The present invention provides a kind of mobile phone and its antenna, separates low-and high-frequency by way of couple feed and is adjusted respectively
Examination, influence when avoiding debugging restructural low frequency again to high frequency, the influence when debugging high frequency to low frequency is equally avoided so as to letter
Change debugging, make debugging more efficient, in addition, further being reduced by low pass filter of connecting when debugging high frequency to the shadow of low frequency
Ring, and different inductance is switched by switch element and forms different antenna loops to realize that obtaining multiple resonant frequencies covers 4G
Low frequency band.
Above content is to combine specific preferred embodiment further description made for the present invention, it is impossible to is assert
The specific implementation of the present invention is confined to these explanations.For general technical staff of the technical field of the invention,
Some equivalent substitutes or obvious modification are made on the premise of not departing from present inventive concept, and performance or purposes are identical, all should
It is considered as belonging to the scope of patent protection that the present invention is determined by the claims submitted.
Claims (5)
1. a kind of antenna, it is characterised in that the antenna includes feed end, low pass filter, low-frequency antenna radiating element, switch
Unit, at least one inductance and complete machine metal；
The feed end connects the input of the low pass filter, and the output end of the low pass filter connects the low frequency day
The first end of beta radiation unit, the second end of the low-frequency antenna radiating element connects the input of the switch element, each
The first end of individual inductance connects an output end of the switch element, and the second end of each inductance connects the complete machine
Metal；
The switch element adjusts the low-frequency resonant frequency of the antenna by gating different inductance；
The antenna also includes high frequency antenna radiating element and connector；
Form high frequency antenna the feed end, the high frequency antenna radiating element, the connector and the complete machine metal
Loop, the connector form different high-frequency resonant frequencies when connecting the diverse location on the complete machine metal ground；
The high frequency antenna radiating element includes the first high frequency antenna radiating element and the second high frequency antenna radiating element, and described
One high frequency antenna radiating element and the second high frequency antenna radiating element are separately positioned on the both sides of circuit board, and by described
Circuit board forms Capacitance Coupled, and the first high frequency antenna radiating element connects the connector, the second high frequency antenna spoke
Penetrate unit and connect the feed end；
The humorous of high frequency is debugged by adjusting the position alteration of form coupling capacitance amount of the second high frequency antenna radiating element
Vibration frequency and bandwidth；
The antenna also includes the 3rd high frequency antenna radiating element, and the 3rd high frequency antenna radiating element connection described second is high
Frequency antenna radiation unit；
Second high frequency antenna radiating element and the 3rd high frequency antenna radiating element are printed on PWB, and the radiation of the first high frequency antenna is single
Meta design is in support either on D-cover, and connector is printed on PWB and is grounded, the first high frequency antenna radiating element, second
High frequency antenna radiating element and the 3rd high frequency antenna radiating element form a couple feed IFA antenna, high by adjustment the 3rd
The resonant frequency and bandwidth of the position length adjustment high frequency of frequency antenna radiation unit.
2. antenna as claimed in claim 1, it is characterised in that at least one inductance include the first inductance, the second inductance,
3rd inductance and the 4th inductance；
The first end of first inductance connects the first output end of the switch element, the second end connection of first inductance
The complete machine metal, the first end of second inductance connects the second output end of the switch element, second inductance
The second end with connecting the complete machine metal, the first end of the 3rd inductance connects the 3rd output end of the switch element,
With connecting the complete machine metal, the first end of the 4th inductance connects the switch element at second end of the 3rd inductance
4th output end, the second end of the 4th inductance is with connecting the complete machine metal.
3. antenna as claimed in claim 2, it is characterised in that the switch element is the throw switch of hilted broadsword four, the hilted broadsword four
Four contacts of throw switch are respectively the first output end, the second output end, the 3rd output end and the 4th of the switch element
Output end.
4. antenna as claimed in claim 1, it is characterised in that：The antenna also includes circuit board, the low pass filter, institute
State the side that low-frequency antenna radiating element, the switch element and at least one inductance are arranged on the circuit board, institute
The opposite side that feed end is arranged on the circuit board is stated, the circuit board is provided with via, and the feed end passes through the via
Electric feed signal is exported to the low pass filter.
A kind of 5. mobile phone, it is characterised in that the built-in antenna described in just like claim any one of 1-4 of the mobile phone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757201.6A CN104466361B (en) | 2014-12-10 | 2014-12-10 | A kind of mobile phone and its antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410757201.6A CN104466361B (en) | 2014-12-10 | 2014-12-10 | A kind of mobile phone and its antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104466361A CN104466361A (en) | 2015-03-25 |
| CN104466361B true CN104466361B (en) | 2018-03-30 |
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ID=52912017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410757201.6A Expired - Fee Related CN104466361B (en) | 2014-12-10 | 2014-12-10 | A kind of mobile phone and its antenna |
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| Country | Link |
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| CN (1) | CN104466361B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104852152B (en) * | 2015-04-03 | 2018-05-29 | 广东欧珀移动通信有限公司 | A kind of antenna and electronic equipment |
| CN104901000B (en) * | 2015-05-14 | 2018-07-06 | 广东欧珀移动通信有限公司 | A kind of couple feed reconfigurable antenna and manufacturing method |
| CN105609969A (en) * | 2016-02-22 | 2016-05-25 | 深圳市金立通信设备有限公司 | Communication terminal |
| CN105870629A (en) * | 2016-05-23 | 2016-08-17 | 广东欧珀移动通信有限公司 | Terminal antenna and intelligent terminal |
| CN107196063A (en) * | 2017-05-24 | 2017-09-22 | 北京小米移动软件有限公司 | Anneta module and its control method and electronic equipment |
| CN107331969A (en) * | 2017-06-19 | 2017-11-07 | 上海传英信息技术有限公司 | A kind of antenna of mobile terminal, control method and the mobile terminal with the antenna |
| CN110797661B (en) * | 2018-08-01 | 2022-01-14 | 青岛海信移动通信技术股份有限公司 | Terminal antenna and terminal |
| CN113437512B (en) * | 2021-06-25 | 2022-10-18 | 歌尔科技有限公司 | Antenna device and portable electronic device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203466294U (en) * | 2013-08-22 | 2014-03-05 | 深圳富泰宏精密工业有限公司 | Adjustable antenna and wireless communication device therewith |
| CN203850426U (en) * | 2014-05-28 | 2014-09-24 | 惠州硕贝德无线科技股份有限公司 | Antenna of communication device equipped with metallic back cover |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203910955U (en) * | 2014-04-11 | 2014-10-29 | 广东欧珀移动通信有限公司 | Mobile phone and antenna thereof |
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2014
- 2014-12-10 CN CN201410757201.6A patent/CN104466361B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203466294U (en) * | 2013-08-22 | 2014-03-05 | 深圳富泰宏精密工业有限公司 | Adjustable antenna and wireless communication device therewith |
| CN203850426U (en) * | 2014-05-28 | 2014-09-24 | 惠州硕贝德无线科技股份有限公司 | Antenna of communication device equipped with metallic back cover |
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| Publication number | Publication date |
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| CN104466361A (en) | 2015-03-25 |
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Address after: Changan town in Guangdong province Dongguan 523860 usha Beach Road No. 18 Patentee after: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. Address before: Changan town in Guangdong province Dongguan 523841 usha Beach Road No. 18 Patentee before: GUANGDONG OPPO MOBILE TELECOMMUNICATIONS Corp.,Ltd. |
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