CN206274545U - A kind of PCB antenna based on resonator - Google Patents
A kind of PCB antenna based on resonator Download PDFInfo
- Publication number
- CN206274545U CN206274545U CN201621482344.1U CN201621482344U CN206274545U CN 206274545 U CN206274545 U CN 206274545U CN 201621482344 U CN201621482344 U CN 201621482344U CN 206274545 U CN206274545 U CN 206274545U
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- resonator
- pcb antenna
- branch
- coupling line
- antenna
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Abstract
The utility model provides a kind of PCB antenna based on resonator, including resonator, the resonator both sides are provided with the first coupling line and the second coupling line arranged in parallel, and first coupling line draws feeder line connection distributing point, and second coupling line passes through gradual change balun connection microstrip line.The PCB antenna, meets multifrequency, the demand of miniature antenna, effectively suppresses other data services interference of successive bands work.Compared with conventional microstrip antenna, the PCB antenna further reduces the area of antenna using the new model terminal antenna of the structure design, while having broadband, flat passband gain and high out-of-side rejection degree.
Description
Technical field
The utility model is related to field of antenna, more particularly to a kind of PCB antenna based on resonator.
Background technology
As wireless communication technology develops, mobile terminal be increasingly intended to miniaturization, inexpensive and ultra-thin fashion it is outer
See, while being also required to compatible multiple communication standard.This allows for the antenna of mobile terminal, and not only volume is small, and antenna performance
It is required that also more and more higher, while broadband requirement is being met also otherwise disturbed by the data service of other frequency ranges.
Antenna not only directly affects the transmitting-receiving of wireless terminal device as the important component of wireless terminal product
Can, also contribute to overall dimensions of wireless terminal and attractive in appearance, therefore design it is a can both meet Customer ID structural requirement, also may be used
The problem that industry faces at present is turned into the antenna for meeting antenna performance index request.
There is small volume due to flat plane antenna, lightweight, section is low, be easily integrated and low cost, it is easy to the advantages of making,
Therefore requirement of the mobile terminal device to antenna volume is disclosure satisfy that, but present antenna needs simultaneously compatible multiple communication marks
Standard, and not by the data service interference of other frequency ranges, this is accomplished by taking some measures improving the interference of successive bands.
Utility model content
The utility model provides a kind of area the small PCB antenna based on resonator, solve adjacent antenna band it
Between interference problem.
To solve the above problems, the utility model provides a kind of PCB antenna based on resonator, including resonator, institute
State resonator both sides and be provided with the first coupling line and the second coupling line arranged in parallel, first coupling line is drawn feeder line and connected
Distributing point is connect, second coupling line passes through gradual change balun connection microstrip line.
Filtered by the stopband of resonator, with reference to the coupling of the first coupling line and the second coupling line and resonator, gradual change bar
Human relations adjust the impedance matching of microstrip line resonator, can effectively solve the day brought during successive bands other data services transmitting
The problem disturbed between line, further reduces the area of antenna.Structural antenna compact, simple structure is easy to and mobile phone
Circuit board is integrated, and low cost, is easy to batch production, therefore, it is possible to be applied to multiple terminal system.
Preferably, the resonator includes main split, and main split upwardly extends the first branch, second for setting and being parallel to each other
Branch and the 3rd branch, the length of first branch, the second branch and the 3rd branch are successively decreased successively.By adjusting first point
The length of branch, the second branch and the 3rd branch, can adjust the stopband filter effect to each frequency range, and the shape of the resonator also can root
Random variation is carried out according to actual demand, such as annular, square, impedance can also be adjusted by increasing the number of resonator
It is whole.
Preferably, the resonator is the short-circuit resonant device of 1/4 wavelength.
Preferably, the first gap, the second coupling line resonator are provided between the first coupling line resonator
Between be provided with the second gap.By adjusting the width in the first gap and the second gap, the adjustment of the center frequency point of stopband is realized.
Preferably, the PCB antenna is arranged at the one of the USB end peripheries of wireless terminal.
Preferably, the balun be three-level gradual change balun, including first order metal tape, second level metal tape and the third level gold
Category band, the width of the first order metal tape, second level metal tape and third level metal tape successively decreases successively.Can be by adjustment first
The width and length of level metal tape, second level metal tape and third level metal tape, the resistance for making resonator different with microstrip line generation
Anti- matching effect.
Preferably, also including medium substrate, the dielectric constant of the medium substrate is 3.6~5, the thickness of the medium substrate
It is 0.5~2mm to spend.
Preferably, the microstrip line is " T " font cabling.
Preferably, the feeding classification of antenna can be by the way of direct feed, couple feed or probe feed.
Compared with prior art, the utility model has the following advantages that：
The utility model provides a kind of PCB antenna based on resonator, meets multifrequency, the demand of miniature antenna, effectively
Suppress other data services interference of successive bands work.Compared with conventional microstrip antenna, the PCB antenna uses the structure design
New model terminal antenna further reduce the area of antenna, while have outside broadband, flat passband gain and high band press down
System.
Brief description of the drawings
Fig. 1 is the structural representation of the PCB antenna that the utility model embodiment is based on resonator.
Fig. 2 is the return loss plot figure of the PCB antenna that the utility model embodiment is based on resonator.
Wherein, 1 is distributing point, and 2 is the first coupling line, and 3 is the second coupling line, and 4 is resonator, and 41 is the first branch, 42
It is the second branch, 43 is the 3rd branch, and 5 is balun, and 51 is first order metal tape, and 52 is second level metal tape, and 53 is the third level
Metal tape, 6 is microstrip line, and 7 is feeder line, and 8 is the first gap, and 9 is the second gap, and 10 is medium substrate.
Specific embodiment
The following example is explained further and supplements to of the present utility model, does not constitute any limit to the utility model
System.
As described in Figure 1, a kind of PCB antenna based on resonator, is the wireless terminal antenna of novel miniaturization complementation driffractive ring,
The place at close USB ends in wireless terminal is arranged at, the PCB antenna is printed on dielectric constant for ε r=4.2 and thickness are 1mm
Dielectric-slab on, the medium substrate is made up of single-layer medium.The PCB antenna for being based on resonator is coupled including resonator 4, first
Line 2, the second coupling line 3, balun 5 and microstrip line 6, the first coupling line and the second coupling line are parallel to each other and are arranged at resonator
The connection distributing point 1 of feeder line 7 is extended in both sides, the side of the first coupling line, and the other end forms the first gap 8, second with resonator
The side of coupling line forms the second gap 9 with resonator, and opposite side passes through balun connection microstrip line.
Wherein, resonator realizes stopband filter function using the short-circuit resonant device of 1/4 wavelength, overall in approximate " mountain " word
Type, including main split, parallel interval sets branch 42 of the first branch 41 second and the 3rd branch, first point successively in main split
The length of branch, the second branch and the 3rd branch is successively decreased successively, is realized to three stopband filter actions of frequency range, wherein the second branch
End points ground connection.
Balun is in three-level grading structure, including first order metal tape 51, second level metal tape 52 and third level metal tape 53,
The width of first order metal tape, second level metal tape and third level metal tape successively decreases successively, respectively the coupling line of time first, second
Impedance matching between coupling line and microstrip line.
Microstrip line is " T " font structure, and width is 1.8mm.
The first gap and the width in the second gap that first coupling line and the second coupling line are formed with resonator can be according to realities
Border situation adjustment, can control the center frequency point of stopband, as shown in Fig. 2 when gap width is adjusted into 2mm, the center frequency point of stopband
It is 2.5GHz, the first coupling line and the second coupling line are arranged in parallel, for strengthening resonator and the first coupling line and second
Coupling between coupling line.
The PCB antenna based on resonator described in the present embodiment, meets WCDMA1700, WCDMA2100, LTE band34
With the data transmission service of LTE band7, wherein, between WCDMA1700 and WCDMA 2100, WCDMA 2100 and LTE
Between band34 and LTE band7 data service and WLAN 2.4GHz easily produce interference, by adjust resonator
One branch, the second branch and the 3rd branch and the coupling between resonator and the first coupling line, the second coupling line so that
Between WCDMA1700 and WCDMA2100, between WCDMA2100 and LTE band34, before LTE band7 and WLAN 2.4GHz
Interference reach minimum, Out-of-band rejection ability is stronger, so as to realize more preferable isolation technology.This is based on the PCB antenna of resonator
Compared with conventional microstrip antenna, size can reduce 30% or so.
It is above wherein specific implementation of the present utility model, therefore its description is more specific and detailed, but can not be
And it is interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art,
Without departing from the concept of the premise utility, various modifications and improvements can be made, these obviously replace shape
Formula belongs to protection domain of the present utility model.
Claims (8)
1. a kind of PCB antenna based on resonator, it is characterised in that：Including resonator（4）, the resonator（4）Both sides are provided with
First coupling line arranged in parallel（2）With the second coupling line（3）, first coupling line（2）Draw feeder line（7）Connection feedback
Electric point（1）, second coupling line（3）By gradual change balun（5）Connection microstrip line（6）.
2. the PCB antenna based on resonator according to claim 1, it is characterised in that：The resonator（4）Including main point
Branch, main split upwardly extends the first branch for setting and being parallel to each other（41）, the second branch（42）With the 3rd branch（43）, described
One branch（41）, the second branch（42）With the 3rd branch（43）Length successively decrease successively.
3. the PCB antenna based on resonator according to claim 1, it is characterised in that：The resonator（4）It is 1/4 ripple
Short-circuit resonant device long.
4. the PCB antenna based on resonator according to claim 1, it is characterised in that：First coupling line（2）It is harmonious
Shake device（4）Between be provided with the first gap（8）, second coupling line（3）Resonator（4）Between be provided with the second gap（9）.
5. the PCB antenna based on resonator according to claim 1, it is characterised in that：The PCB antenna is arranged at wirelessly
At the one of the USB end peripheries of terminal.
6. the PCB antenna based on resonator according to claim 1, it is characterised in that：The balun（5）It is three-level gradual change
Balun, including first order metal tape（51）, second level metal tape（52）With third level metal tape（53）, the first order metal tape
（51）, second level metal tape（52）With third level metal tape（53）Width successively decrease successively.
7. the PCB antenna based on resonator according to claim 1, it is characterised in that：Also include medium substrate（10）, institute
State medium substrate（10）Dielectric constant be 3.6~5, the thickness of the medium substrate is 0.5~2mm.
8. the PCB antenna based on resonator according to claim 1, it is characterised in that：The microstrip line is walked for " T " font
Line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482344.1U CN206274545U (en) | 2016-12-30 | 2016-12-30 | A kind of PCB antenna based on resonator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621482344.1U CN206274545U (en) | 2016-12-30 | 2016-12-30 | A kind of PCB antenna based on resonator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206274545U true CN206274545U (en) | 2017-06-23 |
Family
ID=59063432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621482344.1U Expired - Fee Related CN206274545U (en) | 2016-12-30 | 2016-12-30 | A kind of PCB antenna based on resonator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206274545U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706546A (en) * | 2017-09-20 | 2018-02-16 | 哈尔滨工程大学 | A kind of multiband antenna of parasitic couplings feed |
| CN108767443A (en) * | 2018-05-29 | 2018-11-06 | Oppo广东移动通信有限公司 | A kind of antenna assembly and electronic equipment |
| CN111613905A (en) * | 2019-02-22 | 2020-09-01 | 华为技术有限公司 | Antenna and mobile terminal |
-
2016
- 2016-12-30 CN CN201621482344.1U patent/CN206274545U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107706546A (en) * | 2017-09-20 | 2018-02-16 | 哈尔滨工程大学 | A kind of multiband antenna of parasitic couplings feed |
| CN108767443A (en) * | 2018-05-29 | 2018-11-06 | Oppo广东移动通信有限公司 | A kind of antenna assembly and electronic equipment |
| CN108767443B (en) * | 2018-05-29 | 2021-03-09 | Oppo广东移动通信有限公司 | Antenna device and electronic equipment |
| CN111613905A (en) * | 2019-02-22 | 2020-09-01 | 华为技术有限公司 | Antenna and mobile terminal |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20170623 Termination date: 20201230 |