CN205900794U - Device is extended to LTE cell -phone antenna low -frequency range double resonance bandwidth - Google Patents
Device is extended to LTE cell -phone antenna low -frequency range double resonance bandwidth Download PDFInfo
- Publication number
- CN205900794U CN205900794U CN201620344331.1U CN201620344331U CN205900794U CN 205900794 U CN205900794 U CN 205900794U CN 201620344331 U CN201620344331 U CN 201620344331U CN 205900794 U CN205900794 U CN 205900794U
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- antenna
- feed point
- matching unit
- resistance
- main
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Abstract
The utility model discloses a device is extended to LTE cell -phone antenna low -frequency range double resonance bandwidth, including master antenna, parasitic antenna and antenna matching circuit, master antenna and parasitic antenna coupled linking and gapped between the two, the antenna of master antenna is walked line one end and is presented a little and main feed point with extending, and parasitic antenna's one end is extended parasitic antenna and is presented a little, present a little, main feed point and parasitic antenna present some parallel arrangement on the flexible circuit board, and set up certain interval between the three, the antenna matching circuit include main antenna matching unit, present point matching unit and parasitic antenna matching unit, and main antenna matching unit does not present the on -line of walking that the master antenna was arranged in to the point matching unit with ground, parasitic antenna's the on -line of walking is arranged in to the antenna matching unit of parasitizing. The utility model discloses an add parasitic antenna on prior art's basis, increase a resonance with master antenna and by -pass phase -match to reach the mesh of extending cell -phone antenna low -frequency range bandwidth.
Description
Technical field
The utility model is related to electronic information field, and more particularly, to a kind of lte antenna for mobile phone low-frequency range double resonance bandwidth is opened up
Extending apparatus.
Background technology
In information age today, network Development is very fast, network signal just from 2g be changed into 3g shortly started again from
The transformation of 3g to 4g.Lte(long term evolution, Long Term Evolution) it is by 3gpp(the 3rd generation
Partnership project, third generation partner program) the umts(universal mobile that organizes to set up
Telecommunications system, UMTS) technical standard Long Term Evolution, between 3g and 4g.
Accordingly, the signal of lte antenna for mobile phone accepts bandwidth also than common 2g and 3g mobile phone more greatly, and original beamwidth of antenna is in low-frequency range
In bandwidth can not meet the normal use of lte mobile phone.
Utility model content
For weak point present in above-mentioned technology, the utility model provides a kind of raising antenna for mobile phone low-frequency range bandwidth
Lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device.
For achieving the above object, the utility model provides a kind of lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device,
Including a main antenna, a passive antenna and antenna-matching circuit, described main antenna and passive antenna are of coupled connections and both
Between have gap；Ground feed point and main feed point are extended in antenna cabling one end of described main antenna, and one end of described passive antenna is prolonged
Stretch out passive antenna feed point；Described ground feed point, main feed point and passive antenna feed point be arranged in parallel, and between being provided between three
Away from；Described antenna-matching circuit include main antenna matching unit, feed point matching unit and passive antenna matching unit, and main sky
Lines matching unit and ground feed point matching unit are placed in the cabling of main antenna, and passive antenna matching unit is placed in walking of passive antenna
In line.
Wherein, described ground feed point matching unit and the junction of ground feed point are connected with the first inductance, and passive antenna coupling
Unit and passive antenna feed point junction are connected with the second inductance.
Wherein, described main antenna matching unit include operational amplifier, first resistor, second resistance, 3rd resistor, the 4th
Resistance, the 5th resistance, the first electric capacity, the second electric capacity and radio frequency interface；Described operational amplifier, first resistor, second resistance and
First electric capacity is sequentially connected in series；Described 3rd resistor and the 4th resistant series, and described 3rd resistor be additionally attached to first resistor and
The common port of second resistance, described 4th resistance is also connected with radio frequency interface；One end of described 5th resistance connect 3rd resistor with
The common port of the 4th resistance, and its other end electrically connected with the second electric capacity.
Wherein, feed point matching unit in described ground includes the 3rd electric capacity, the 6th resistance and the 4th electric capacity, described 6th resistance
One end and the 3rd capacitance connection, and its other end and the 4th capacitance connection.
Wherein, described passive antenna matching unit includes the 5th electric capacity, the 7th resistance and the 6th electric capacity, described 7th resistance
One end and the 5th capacitance connection, and its other end and the 6th capacitance connection.
Wherein, the cabling of the cabling between described ground feed point, main feed point and main antenna is in that f type constructs, described passive antenna
Cabling be in l type structure.
Wherein, described main antenna is also associated with the shell fragment for fixing flexible circuit board.
The beneficial effects of the utility model are: compared with prior art, the lte antenna for mobile phone low frequency that the utility model provides
Section double resonance bandwidth broadning device, by setting up passive antenna in main antenna one end, main antenna is coupled with passive antenna so that leading
The resonant frequency of antenna itself produces dual resonance frequency with the resonant frequency interaction of passive antenna, can reach expansion lte
The purpose of antenna for mobile phone low-frequency range bandwidth；Meanwhile, distance, passive antenna cabling and the master of adjustment passive antenna feed point and main feed point
The distance of antenna cabling, can adjust the scope expanding lte antenna for mobile phone low-frequency range bandwidth.
Brief description
Fig. 1 is the flexible circuit board structure of lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device of the present utility model
Figure；
Fig. 2 be feed point and the circuit of lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device of the present utility model
Figure；
Fig. 3 is lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device main antenna matching unit of the present utility model
Circuit diagram.
Main element symbol description is as follows:
1st, main antenna 2, passive antenna
3rd, antenna-matching circuit 4, shell fragment
11st, feed point 12, main feed point
21st, passive antenna feed point 31, main antenna matching unit
32nd, feed point matching unit 33, passive antenna matching unit
311st, radio frequency interface.
Specific embodiment
In order to more clearly state the utility model, below in conjunction with the accompanying drawings the utility model is further described.
Refer to Fig. 1-2, the lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device that the utility model provides, including
Article one, 1, passive antenna 2 of main antenna and antenna-matching circuit 3, described main antenna 1 is of coupled connections and both with passive antenna 2
Between have gap；Ground feed point 11 and main feed point 12 are extended in antenna cabling one end of described main antenna 1, described passive antenna 2
Passive antenna feed point 21 is extended in one end；Described ground feed point 11, main feed point 12 and passive antenna feed point 21 be arranged in parallel, and three
Between be provided with spacing；Described antenna-matching circuit 3 include main antenna matching unit 31, feed point matching unit 32 and parasitic sky
Lines matching unit 33, and main antenna matching unit 31 and ground feed point matching unit 32 be placed in the cabling of main antenna 1, passive antenna
Matching unit 33 is placed in the cabling of passive antenna 2.Wherein, the distance between passive antenna feed point 21 and main feed point 12 are preferably
0.6 millimeter, distance mentioned here be in this enforcement in preferred distance, the distance of passive antenna feed point 21 and main feed point 12
It is adjustable, other can say that the distance realizing expanding antenna low-frequency range bandwidth both falls within protection domain of the present utility model
Interior.
The lte antenna for mobile phone low-frequency range double resonance bandwidth broadning providing compared to the situation of prior art, the utility model
Device, by setting up passive antenna 2 in main antenna 1 one end, main antenna 1 couples with passive antenna 2 so that main antenna 1 itself
Resonant frequency produces dual resonance frequency with the resonant frequency interaction of passive antenna 2, can reach expansion lte antenna for mobile phone low
The purpose of band bandwidth；Meanwhile, the distance of adjustment passive antenna feed point 21 and main feed point 12, passive antenna 2 cabling and main antenna 1
The distance of cabling, can adjust the scope expanding lte antenna for mobile phone low-frequency range bandwidth.
In the present embodiment, described ground feed point matching unit 32 and the junction of ground feed point 11 are connected with the first inductance (figure
Do not show), and passive antenna matching unit 33 is connected with the second inductance (not shown) with passive antenna feed point 21 junction.Set up electricity
Sense ensures that integrated circuit is stable, plays the effect that auxiliary expands bandwidth.The utility model preferred embodiment for the first inductance is
1.8nh-6.8nh inductance, the second inductance is 1.5nh-3nh inductance.Here inductance range is preferred inductance range value, this
First inductance of utility model and the second inductance are not limited within the scope of this two.
Wherein, described main antenna matching unit includes operational amplifier u1, first resistor r1, second resistance r2, the 3rd electricity
Resistance r3, the 4th resistance r4, the 5th resistance r5, the first electric capacity c1, the second electric capacity c2 and radio frequency interface 311；Described operational amplifier
U1, first resistor r1, second resistance r2 and the first electric capacity c1 are sequentially connected in series；Described 3rd resistor r3 and the 4th resistance r4 string
Connection, and described 3rd resistor r3 is additionally attached to the common port of first resistor r1 and second resistance r2, described 4th resistance r4 also connects
Connect radio frequency interface 311；One end of described 5th resistance r5 connects the common port of 3rd resistor r3 and the 4th resistance r4, and it is another
End is electrically connected with the second electric capacity c2.This is a kind of preferred circuit connecting mode of main antenna matching unit 31, but this practicality is new
Type is not limited to the manner, as long as enabling to mate the effect expanding bandwidth with feed point.
Wherein, described ground feed point matching unit 32 includes the 3rd electric capacity c3, the 6th resistance r6 and the 4th electric capacity c4, and described
One end of six resistance r6 is connected with the 3rd electric capacity c3, and its other end is connected with the 4th electric capacity c4.This is ground feed point matching unit
32 a kind of preferred circuit connecting mode, but the utility model is not limited to the manner, as long as enabling to mate with feed point
Expand the effect of bandwidth.
Wherein, described passive antenna matching unit 33 includes the 5th electric capacity c5, the 7th resistance r7 and the 6th electric capacity c6, described
One end of 7th resistance r7 is connected with the 5th electric capacity c5, and its other end is connected with the 6th electric capacity c6.This is passive antenna coupling
A kind of preferred circuit connecting mode of unit 33, but the utility model is not limited to the manner, as long as enabling and feed point
Coupling expands the effect of bandwidth.
In the present embodiment, the cabling between described ground feed point 11, main feed point 12 and main antenna 1 is in f type structure, described posts
The cabling of raw antenna 2 is in l type structure.In the utility model preferred embodiment, the cabling of passive antenna 2 and main antenna 1
Cable run distance is 0.5 millimeter, and the cabling of passive antenna 2 can make other values, as long as being capable of with the cable run distance of main antenna 1
Low-frequency range double resonance bandwidth broadning function.
In the present embodiment, described main antenna 1 is also associated with the shell fragment 4 for fixing flexible circuit board.The work of shell fragment 4
Be by lte antenna be located flexible PCB be fit in mobile phone when, shell fragment 4 be squeezed bending and obtain elastic potential energy,
A thrust can be obtained come so that flexible PCB is fixed in mobile phone well.This is that one of the present embodiment is real
Apply mode, flexible PCB is fixed on mobile phone the other modes such as setting fastener can also be selected to realize, do not limit to
In this embodiment.
Only several specific embodiments of the present utility model disclosed above, but the utility model is not limited to this,
The changes that any person skilled in the art can think of all should fall into protection domain of the present utility model.
Claims (7)
1. a kind of lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device it is characterised in that include main antenna, one
Passive antenna and antenna-matching circuit, described main antenna and passive antenna are of coupled connections and have gap between the two；Described main sky
Ground feed point and main feed point are extended in antenna cabling one end of line, and passive antenna feed point is extended in one end of described passive antenna；Institute
State ground feed point, main feed point and passive antenna feed point to be arranged in parallel, and between three, be provided with spacing；Described antenna-matching circuit bag
Include main antenna matching unit, feed point matching unit and passive antenna matching unit, and main antenna matching unit and ground feed point
Join unit to be placed in the cabling of main antenna, passive antenna matching unit is placed in the cabling of passive antenna.
2. lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device according to claim 1 is it is characterised in that described
Ground feed point matching unit is connected with the first inductance with the junction of ground feed point, and described passive antenna matching unit is presented with passive antenna
Point junction is connected with the second inductance.
3. lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device according to claim 2 is it is characterised in that described
Main antenna matching unit include operational amplifier, first resistor, second resistance, 3rd resistor, the 4th resistance, the 5th resistance,
One electric capacity, the second electric capacity and radio frequency interface；Described operational amplifier, first resistor, second resistance and the first electric capacity are sequentially connected in series；
Described 3rd resistor and the 4th resistant series, and described 3rd resistor is additionally attached to the common port of first resistor and second resistance,
Described 4th resistance is also connected with radio frequency interface；One end of described 5th resistance connects the common port of 3rd resistor and the 4th resistance,
And its other end is electrically connected with the second electric capacity.
4. lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device according to claim 2 is it is characterised in that described
Ground feed point matching unit includes the 3rd electric capacity, the 6th resistance and the 4th electric capacity, and one end of described 6th resistance is with the 3rd electric capacity even
Connect, and its other end and the 4th capacitance connection.
5. lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device according to claim 2 is it is characterised in that described
Passive antenna matching unit includes the 5th electric capacity, the 7th resistance and the 6th electric capacity, one end of described 7th resistance and the 5th electric capacity
Connect, and its other end and the 6th capacitance connection.
6. lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device according to claim 1 is it is characterised in that described
Cabling between ground feed point, main feed point and main antenna is in f type structure；The cabling of described passive antenna is in l type structure.
7. lte antenna for mobile phone low-frequency range double resonance bandwidth broadning device according to claim 1 is it is characterised in that described
Shell fragment for fixed-bandwidth expanding device is also associated with main antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344331.1U CN205900794U (en) | 2016-04-23 | 2016-04-23 | Device is extended to LTE cell -phone antenna low -frequency range double resonance bandwidth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620344331.1U CN205900794U (en) | 2016-04-23 | 2016-04-23 | Device is extended to LTE cell -phone antenna low -frequency range double resonance bandwidth |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205900794U true CN205900794U (en) | 2017-01-18 |
Family
ID=57766100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620344331.1U Expired - Fee Related CN205900794U (en) | 2016-04-23 | 2016-04-23 | Device is extended to LTE cell -phone antenna low -frequency range double resonance bandwidth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205900794U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128619A1 (en) * | 2017-12-27 | 2019-07-04 | Oppo广东移动通信有限公司 | Housing, antenna assembly and terminal device |
-
2016
- 2016-04-23 CN CN201620344331.1U patent/CN205900794U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019128619A1 (en) * | 2017-12-27 | 2019-07-04 | Oppo广东移动通信有限公司 | Housing, antenna assembly and terminal device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170118 Termination date: 20200423 |