CN109449575A - A kind of antenna structure and terminal device - Google Patents
A kind of antenna structure and terminal device Download PDFInfo
- Publication number
- CN109449575A CN109449575A CN201811455526.3A CN201811455526A CN109449575A CN 109449575 A CN109449575 A CN 109449575A CN 201811455526 A CN201811455526 A CN 201811455526A CN 109449575 A CN109449575 A CN 109449575A
- Authority
- CN
- China
- Prior art keywords
- metal arm
- antenna
- antenna structure
- metal
- gap
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/44—Details of, or arrangements associated with, antennas using equipment having another main function to serve additionally as an antenna, e.g. means for giving an antenna an aesthetic aspect
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/321—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors within a radiating element or between connected radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
Abstract
The present invention provides a kind of antenna structure and terminal device.The antenna structure includes: feed；Metal arm offers the gap that the metal arm is divided into the first metal arm and the second metal arm on the metal arm, and the one end of one end and the second metal arm far from gap of first metal arm is grounded respectively；Feeding point is provided on the predeterminated position of first metal arm；Impedance matching network, the impedance matching network are connect with the feeding point and the feed respectively.The present invention is while meeting antenna performance requirement, multiple frequency ranges just can be covered using an antenna structure, the number of antenna can be reduced, and then advantageously reduce the occupied structure space of total feeding network, reduce the layout difficulty of complete machine antenna, in addition the number that the gap of complete machine antenna can also be reduced is conducive to improve structural strength and meets the appearance demand of complete product.
Description
Technical field
The present embodiments relate to electronic technology field more particularly to a kind of antenna structures and terminal device.
Background technique
As the 5th generation communication technology (5G) is newly eated dishes without rice or wine the maturation and development of (New Radio, NR), 5G NR mobile terminal
Product is just more and more closer from us.
In the 5G epoch, the situation that same operator possesses a variety of networks with different systems (including 4G, 5G and WLAN) will
Long-term existence.5G mobile phone needs first that (2 antennas send/4 antennas and connect using 2T4R in sub-6GHz (be lower than 6GHz frequency range) frequency range
Receive) basic scheme as transceiver, terminal antenna is intended in original multiple antennas (such as support LTE 4*
(domestic sub-6G includes N78 at least more 4 sub-6G antennas, and two frequency ranges of N79 need to cover two simultaneously on the basis of 4MIMO)
The combination of 4 antennas or more single frequency band antennas of a frequency range).In addition can be used to improve the GPS L5 of positioning accuracy
Band antenna is equivalent to than mostly 5~9 antennas in the past.In addition, there are also some interband carrier aggregations for part operator
The demand of (Carrier Aggregation, CA), for example require B1/B3, B39/B41, N78/B3, N79/B41 while coexisting
Deng, it is desirable that antenna can cover multiple frequency ranges simultaneously.
At the same time, with the lasting promotion of Mobile phone screen accounting, so that the increasingly evil that effective headroom of antenna is also just becoming
Bad, the Net long wave radiation space of antenna also becomes worse and worse.Antenna Operation person needs to solve under more severe headroom environment
It realizes the antenna more propped up and is effective eradiation, and also to solve more complicated isolation between antennas simultaneously, coexist
And efficiency.
All-metal back-cover, metal center appearance mobile phone for current mainstream, antenna, which increases, also implies that the antenna line of rabbet joint
Increase, very big influence can be all brought on reliability of structure, appearance.The above a variety of factors can all restrict the design of antenna, give day
Line worker brings very stern challenge.
Summary of the invention
The embodiment of the present invention provides a kind of antenna structure and mobile terminal, to solve the frequency range of 5G terminal device antenna covering
It is more, cause antenna number more, the difficult problem of the layout of complete machine antenna.
In order to solve the above-mentioned technical problem, the present invention is implemented as follows:
In a first aspect, the embodiment provides a kind of antenna structures, comprising:
Feed；
Metal arm offers the seam that the metal arm is divided into the first metal arm and the second metal arm on the metal arm
Gap, and the one end of one end and the second metal arm far from gap of first metal arm is grounded respectively；First metal arm
Feeding point is provided on predeterminated position；
Impedance matching network, the impedance matching network are connect with the feeding point and the feed respectively；
Wherein, the first metal arm generates first resonance mode with the first resonance frequency and the by feed excitation
Second resonance mode of two resonance frequencies；
Second metal arm generates the third resonance mode with third resonance frequency by slot-coupled.
Second aspect, the embodiments of the present invention also provide a kind of mobile terminals, comprising: the day as described in above-described embodiment
Cable architecture.
In the embodiment of the present invention, the metal arm is divided into the first metal arm and the second metal by opening up on metal arm
The gap of arm, and the resistance that feeding point is set on the predeterminated position of the first metal arm and is connect respectively with the feeding point and feed
Anti- matching network, such antenna structure can be realized the first metal arm and produced by feed excitation with the first resonance frequency
The first resonance mode and the second resonance frequency the second resonance mode, the second metal arm produced by slot-coupled with
The third resonance mode of three resonance frequencies, and while meeting antenna performance requirement, it just can be covered using an antenna structure
Multiple frequency ranges are covered, the number of antenna can be reduced, and then advantageously reduce the occupied structure space of total feeding network, are reduced
The layout difficulty of complete machine antenna, in addition can also reduce the number in the gap of complete machine antenna, be conducive to improve structural strength with
And meet the appearance demand of complete product.
Detailed description of the invention
Fig. 1 is the schematic diagram of the antenna structure of the embodiment of the present invention；
Fig. 2 is the voltage standing wave ratio of the antenna structure of the embodiment of the present invention with the variation schematic diagram of frequency；
Fig. 3 is that the embodiment of the present invention is one of the schematic diagram that impedance adjustment circuit and impedance matching network are connected in series；
Fig. 4 is that the embodiment of the present invention is one of the schematic diagram that impedance adjustment circuit and impedance matching network are connected in parallel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are some of the embodiments of the present invention, instead of all the embodiments.Based on this hair
Embodiment in bright, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, shall fall within the protection scope of the present invention.
As shown in Figure 1, being the structural schematic diagram of antenna structure provided in an embodiment of the present invention.The antenna structure includes: feedback
Source 5；Metal arm offers the gap 3 that the metal arm is divided into the first metal arm 1 and the second metal arm 2, and on metal arm
One end E of one metal arm 1 and the second metal arm 2 are grounded respectively far from one end A in gap 3；The predeterminated position of first metal arm 1 is set
It is equipped with feeding point D；Impedance matching network 4, the impedance matching network 4 are connect with feeding point D and feed 5 respectively.
Wherein, the first metal arm 1 generates first resonance mode and second with the first resonance frequency by the excitation of feed 5
Second resonance mode of resonance frequency；Second metal arm 2 generates the third resonance with third resonance frequency by the coupling of gap 3
Mode.
It should be noted that the first metal arm 1 and the second metal arm 2 may be generally referred to as antenna resonance arm.
Here, the first metal arm 1 and the second metal arm 2 are metal conductive materials, can be common flexible circuit board
(Flexible Printed Circuit, FPC), printing straight forming (Printing Direct Structuring, PDS),
Laser direct forming (Laser Direct Structuring, LDS) material, is also possible to the one of metal center or metal back cover
The metallic conductors such as part.
In Fig. 1, G1, G2 are the reference ground of antenna.CE, i.e. the first metal arm 1, connect and compose first antenna unit with G1；
AB, i.e. the second metal arm 2, connect and compose the second antenna element with G2.
Here, it is preferred that, it is filled with nonmetallic dielectric material in gap 3, common are the media such as plastics.
In addition, it is necessary to explanation, as shown in Figure 1, the first metal arm 1 and the second metal arm 2 gap 3 B, C point it
Between there are a coupled capacitor, be equivalent to the nonmetallic dielectric material filled in B, C, gap 3 and gap 3 and collectively form parallel-plate
Capacitor.
Here, in the area of the capacitance of the coupled capacitor and B, C point place end face, the spacing between B, C and gap 3
The medium of filling is related.
In addition, RF energy reaches the feeding point D of the first metal arm 1 by feed 5, impedance matching network 4, and thus swash
Encourage the second resonance mode for producing the first resonance mode and the second resonance frequency with the first resonance frequency.
Further more, RF energy is by feed 5, impedance matching network 4 via first antenna unit (the first metal arm 1 and G1
Connect and compose first antenna unit) the metal arm 1 of feeding point D to first and the second metal arm 2 formed gap 3 one end metal
Part is specially DC section of metal arm, arrival C point, by the coupled capacitor in gap 3 by transmission of radio-frequency energy to second day in figure
Line unit (the second metal arm 2 connects and composes the second antenna element with G2), and thus motivate with third resonance frequency the
Three resonance modes.
It should be noted that the size of third resonance frequency is related to the length of the second metal arm 2.Second metal arm 2
Length is related to gap 3, for example, the area with end face where B, C point, the interior medium filled of spacing and gap 3 between B, C
Etc. correlations.
The metal arm is divided into the first metal by opening up on metal arm by antenna structure provided in an embodiment of the present invention
The gap of arm and the second metal arm, and on the predeterminated position of the first metal arm be arranged feeding point and respectively with the feeding point and
The impedance matching network of feed connection, such antenna structure, which can be realized the first metal arm and be produced by feed excitation, to be had
First resonance mode of the first resonance frequency and the second resonance mode of the second resonance frequency, the second metal arm pass through slot-coupled
The third resonance mode with third resonance frequency is produced, and while meeting antenna performance requirement, utilizes a day
Cable architecture just can cover multiple frequency ranges, can reduce the number of antenna, and then it is occupied to advantageously reduce total feeding network
Structure space reduces the layout difficulty of complete machine antenna, in addition can also reduce the number in the gap of complete machine antenna, is conducive to change
The structural strength of kind complete machine and the appearance demand for meeting complete product.
As an optional implementation, other end C (the i.e. feeding point D to the first gold medal of feeding point D to the first metal arm 1
Belong to one end that arm 1 and the second metal arm 2 form gap 3) length be more than or equal to 2mm and less than or equal to 8mm.
Here, it is preferred that, the length of the other end C of feeding point D to the first metal arm 1 is 5mm.
Based on above-mentioned implementation, in a preferred embodiment, in order to make the first metal arm 1 by feed 5 simultaneously
Motivate the resonance mode based on GPS L5 frequency range and the resonance mode based on 5G N79 frequency range, optionally, the first metal arm 1
Length be more than or equal to 22mm and be less than or equal to 30mm.
It should be noted that GPS L5 frequency range specifically: 1176.45 ± 50MHz.
5G N79 frequency range specifically: 4400MHz~5000MHz.
Here, it is preferred that, the length of the first metal arm 1 is 26mm.
And in order to make the first metal arm 1 by feed 5 and meanwhile motivate resonance mode based on GPS L5 frequency range and
While resonance mode based on 5G N79 frequency range, the second metal arm 2 can also be made to motivate base by the coupled capacitor in gap 3
In the resonance mode of 5G N78 frequency range, optionally, the length of the second metal arm 2 is greater than or equal to 5mm and is less than or equal to
11mm。
It should be noted that 5G N78 frequency range specifically: 3300MHz~3800MHz.
Based on the size characteristic of above-mentioned each metal arm, the first resonance frequency f1 is less than the third resonance frequency f3,
The third resonance frequency f3 is less than the second resonance frequency f2.
In an additional preferred embodiment, in order to making the first metal arm 1 by feed 5 while motivating based on WIFI
The resonance mode of 2.4 frequency ranges and resonance mode based on 5G N79 frequency range, optionally, the length of the first metal arm 1 be greater than or
Person is equal to 8mm and is less than or equal to 18mm.
It should be noted that 2.4 frequency range of WIFI specifically: 2400M MHz~2500MHz.
Here, it is preferred that, the length of the first metal arm is 10mm.
And in order to make the first metal arm 1 by feed 5 and meanwhile motivate the resonance mode based on 2.4 frequency range of WIFI with
And while resonance mode based on 5G N79 frequency range, the second metal arm 2 can also motivated by the coupled capacitor in gap 3
Based on the resonance mode of 5G N78 frequency range, optionally, the length of the second metal arm 2 is greater than or equal to 5mm and is less than or equal to
11mm。
Based on the size characteristic of above-mentioned each metal arm, the first resonance frequency f1 is less than the third resonance frequency f3,
The third resonance frequency f3 is less than the second resonance frequency f2.
Two embodiments based on the size characteristic with above-mentioned each metal arm, antenna structure can finally generate simultaneously
Three resonance modes of one resonance frequency f1, the second resonance frequency f2 and third resonance frequency f3.As shown in Fig. 2, being same
Moment, the voltage standing wave ratio of the antenna structure with frequency variation schematic diagram.Horizontal axis is for indicating frequency f, and the longitudinal axis is for indicating
Voltage standing wave ratio VWSR.Wherein, curve H indicates that the first metal arm 1 (the CE section metal part in Fig. 1) is motivated by feed 5
The first resonance mode, f1 indicate the first resonance frequency；Curve J indicates that the second metal arm 2 (AB sections of metal parts in Fig. 1) passes through
The coupling in gap 3, thus the third resonance mode motivated, f3 indicates third resonance frequency；Curve K indicates the first metal arm 1
(the CE section metal part in Fig. 1) passes through the second resonance mode that feed 5 motivates, and f2 indicates the second resonance frequency.These three
Resonance mode be it is simultaneous, can be realized antenna multiband covering.
It should be noted that if the length of the first metal arm 1 is more than or equal to 22mm and is less than or equal to 30mm, then
Corresponding first resonance frequency f1 is the frequency in GPS L5 frequency range；If the length of the first metal arm 1 be more than or equal to 8mm and
Less than or equal to 18mm, then corresponding first resonance frequency f1 is the frequency in 2.4 frequency range of WIFI.
Preferably, impedance matching network 4 includes but is not limited to one of following combination:
First inductance；
First capacitor；
Second inductance and the second capacitor, second inductance are connected with second capacitor；
Third inductance and third capacitor, the third inductance are in parallel with the third capacitor.
Here, according to actual needs, arbitrary series-parallel combination can also be carried out between said combination.
It should be noted that the effect of impedance matching network 4 is in order to realize the matching between antenna and feeder line, to obtain most
Big power transmission.
Based on embodiment shown in FIG. 1, by the practical complete machine layout designs of above-mentioned antenna structure VAS application -to-terminal service equipment
In, the position of feeding point D often because component stack etc. other factors limitation so that feeding point D to gap 3 distance (i.e. such as
The length of CD shown in Fig. 1) it is larger with preferred size 5mm difference；Alternatively, coupled capacitor at gap 3 is because between practical B, C
Away from and sectional dimension or the difference of the medium of filling can change, the difference of coupling amount will affect the initial resistance of antenna
It is anti-, lead to the offset of antenna resonant frequency, influence antenna performance, therefore, in order to meet the performance requirement of antenna, and is subtracting
While the number in overall design in few gap, guarantee motivates three resonance modes, in the another preferred reality of the present invention
It applies in example, antenna structure of the invention may also include that
The impedance adjustment circuit in series or in parallel with impedance matching network 4.
Here, impedance adjustment circuit makes the beamwidth of antenna broaden, is also used to correct the resonance of antenna for optimizing the beamwidth of antenna
Frequency, so that antenna impedance circle becomes more to restrain on Smith chart, so that broadened bandwidth improves the performance of antenna.
In one example, as shown in figure 3, the schematic diagram being connected in series for impedance adjustment circuit and impedance matching network it
One.Antenna structure includes multiple impedance matching networks, and such as M1, Mn, impedance adjustment circuit includes: the 4th inductance and with the 4th
Concatenated 4th capacitor of inductance.
In Fig. 3, the 4th inductance is first connected with the 4th capacitor, then is connected between impedance matching network M1 and Mn.
Here, optionally, the capacitance of the 4th capacitor is more than or equal to 0.1pf, and is less than or equal to 1.5pf.The
The inductance value of four inductance is more than or equal to 1nH, and is less than or equal to 8nH.
Preferably, the capacitance of the 4th capacitor is 0.5pf.The inductance value of 4th inductance is 3nH.
It should be noted that above-mentioned concatenated 4th inductance and the 4th capacitor can be one group and be connected on impedance matching network
In, it is also possible to multiple groups and is connected in impedance matching network respectively.
In another example, as shown in figure 4, the schematic diagram being connected in parallel for impedance adjustment circuit and impedance matching network it
Two.Antenna structure middle impedance adjustment circuit include: the 4th inductance and with concatenated 4th capacitor of the 4th inductance.
In Fig. 4, the 4th inductance is first connected with the 4th capacitor, then is connected in parallel on impedance matching network M.Here, such as Fig. 4 institute
Show, concatenated 4th inductance and the 4th capacitor are two groups.Specific connection relationship is the first end of the 4th inductance in each group
It is connect with impedance matching network M, the second end of the 4th inductance is connect with the first end of the 4th capacitor；Second termination of the 4th capacitor
Ground.
Here, optionally, the capacitance of the 4th capacitor is more than or equal to 0.1pf, and is less than or equal to 1.5pf.The
The inductance value of four inductance is more than or equal to 1nH, and is less than or equal to 5nH.
Preferably, the capacitance of the 4th capacitor is 0.3pf.The inductance value of 4th inductance is 2.2nH.
It should be noted that above-mentioned concatenated 4th inductance and the 4th capacitor can be one group and be connected in parallel on impedance matching network
In, it is also possible to multiple groups and is connected in parallel in impedance matching network respectively.
The metal arm is divided into the first metal by opening up on metal arm by antenna structure provided in an embodiment of the present invention
The gap of arm and the second metal arm, and on the predeterminated position of the first metal arm be arranged feeding point and respectively with the feeding point and
The impedance matching network of feed connection, such antenna structure, which can be realized the first metal arm and be produced by feed excitation, to be had
First resonance mode of the first resonance frequency and the second resonance mode of the second resonance frequency, the second metal arm pass through slot-coupled
The third resonance mode with third resonance frequency is produced, and while meeting antenna performance requirement, utilizes a day
Cable architecture just can cover multiple frequency ranges, can reduce the number of antenna, and then advantageously reduce total feeding network (including radio frequency
Feed, test bench, matching network and feed elastic piece structure etc.) occupied structure space, reduce the layout of complete machine antenna
In addition difficulty can also reduce the number in the gap of complete machine antenna, be conducive to improve the structural strength of complete machine and meet complete machine
The appearance demand of product.
The embodiment of the present invention also provides a kind of terminal device, comprising: the antenna structure as described in above-described embodiment.
In a preferred embodiment, terminal device may also include that metal center, wherein the first metal arm 1 and the second gold medal
Belong to the component part that arm 2 is the metal center.
Terminal device described in above-described embodiment can be mobile phone, navigation, tablet computer, personal digital assistant (PDA),
Or the equipment such as laptop.
The above is a preferred embodiment of the present invention, it is noted that for those skilled in the art
For, without departing from the principles of the present invention, it can also make several improvements and retouch, these improvements and modifications
It should be regarded as protection scope of the present invention.
Claims (11)
1. a kind of antenna structure characterized by comprising
Feed (5)；
Metal arm offers on the metal arm metal arm being divided into the first metal arm (1) and the second metal arm (2)
Gap (3), and one end (E) of first metal arm (1) and the second metal arm (2) connect respectively far from the one end (A) of gap (3)
Ground；Feeding point (D) is provided on the predeterminated position of first metal arm (1)；
Impedance matching network (4), the impedance matching network (4) connect with the feeding point (D) and the feed (5) respectively；
Wherein, the first metal arm (1) by the feed (5) excitation generate have the first resonance frequency the first resonance mode and
Second resonance mode of the second resonance frequency；
Second metal arm (2) generates the third resonance mode with third resonance frequency by gap (3) coupling.
2. antenna structure according to claim 1, which is characterized in that the feeding point (D) to first metal arm (1)
The other end (C) length be more than or equal to 2mm and be less than or equal to 8mm.
3. antenna structure according to claim 2, which is characterized in that the length of first metal arm (1) be greater than or
Equal to 22mm and it is less than or equal to 30mm；
Alternatively, the length of first metal arm (1) is more than or equal to 8mm and is less than or equal to 18mm.
4. antenna structure according to claim 3, which is characterized in that the length of second metal arm (2) be greater than or
Equal to 5mm and it is less than or equal to 11mm.
5. antenna structure according to claim 4, which is characterized in that first resonance frequency is less than the third resonance
Frequency, the third resonance frequency are less than second resonance frequency.
6. antenna structure according to claim 1, which is characterized in that the impedance matching network (4) includes following combination
One of:
First inductance；
First capacitor；
Second inductance and the second capacitor, second inductance are connected with second capacitor；
Third inductance and third capacitor, the third inductance are in parallel with the third capacitor.
7. antenna structure according to claim 1, which is characterized in that further include:
The impedance adjustment circuit in series or in parallel with the impedance matching network.
8. antenna structure according to claim 7, which is characterized in that the impedance adjustment circuit includes:
4th inductance；
With concatenated 4th capacitor of the 4th inductance.
9. antenna structure according to claim 1, which is characterized in that be filled with nonmetallic dielectric material in the gap (3)
Matter.
10. a kind of terminal device characterized by comprising antenna structure as described in any one of claims 1 to 9.
11. terminal device according to claim 10, which is characterized in that further include: metal center；
Wherein, the first metal arm (1) and the second metal arm (2) are the component part of the metal center.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455526.3A CN109449575B (en) | 2018-11-30 | 2018-11-30 | Antenna structure and terminal equipment |
| PCT/CN2019/117066 WO2020108281A1 (en) | 2018-11-30 | 2019-11-11 | Antenna structure and terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811455526.3A CN109449575B (en) | 2018-11-30 | 2018-11-30 | Antenna structure and terminal equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109449575A true CN109449575A (en) | 2019-03-08 |
| CN109449575B CN109449575B (en) | 2021-03-16 |
Family
ID=65555231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811455526.3A Active CN109449575B (en) | 2018-11-30 | 2018-11-30 | Antenna structure and terminal equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109449575B (en) |
| WO (1) | WO2020108281A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110518342A (en) * | 2019-09-25 | 2019-11-29 | 南昌黑鲨科技有限公司 | Multi-frequency multi-mode antenna |
| WO2020108281A1 (en) * | 2018-11-30 | 2020-06-04 | 维沃移动通信有限公司 | Antenna structure and terminal device |
| CN111370855A (en) * | 2020-03-20 | 2020-07-03 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN112002994A (en) * | 2020-08-27 | 2020-11-27 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN113451741A (en) * | 2020-03-26 | 2021-09-28 | 华为技术有限公司 | Antenna and terminal equipment |
| CN114243265A (en) * | 2020-09-09 | 2022-03-25 | 北京小米移动软件有限公司 | Antenna structure and communication equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789836A (en) * | 2014-12-24 | 2016-07-20 | 联想(北京)有限公司 | Antenna system and mobile terminal |
| US20180090822A1 (en) * | 2016-05-23 | 2018-03-29 | Acer Incorporated | Communication device with metal-frame half-loop antenna element |
| CN108808221A (en) * | 2018-06-19 | 2018-11-13 | 深圳市万普拉斯科技有限公司 | antenna system and mobile terminal |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203774453U (en) * | 2014-04-11 | 2014-08-13 | 广东欧珀移动通信有限公司 | Mobile phone and antenna thereof |
| CN103928753B (en) * | 2014-04-11 | 2016-08-24 | 广东欧珀移动通信有限公司 | A kind of mobile phone and antenna thereof |
| CN105789882B (en) * | 2014-12-26 | 2019-05-17 | 比亚迪股份有限公司 | The antenna of mobile terminal and mobile terminal |
| CN106532268B (en) * | 2016-10-31 | 2019-05-17 | 维沃移动通信有限公司 | A kind of antenna structure and mobile terminal |
| CN108767500A (en) * | 2018-05-31 | 2018-11-06 | 维沃移动通信有限公司 | A kind of antenna assembly and mobile terminal |
| CN109449575B (en) * | 2018-11-30 | 2021-03-16 | 维沃移动通信有限公司 | Antenna structure and terminal equipment |
-
2018
- 2018-11-30 CN CN201811455526.3A patent/CN109449575B/en active Active
-
2019
- 2019-11-11 WO PCT/CN2019/117066 patent/WO2020108281A1/en active Application Filing
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105789836A (en) * | 2014-12-24 | 2016-07-20 | 联想(北京)有限公司 | Antenna system and mobile terminal |
| US20180090822A1 (en) * | 2016-05-23 | 2018-03-29 | Acer Incorporated | Communication device with metal-frame half-loop antenna element |
| CN108808221A (en) * | 2018-06-19 | 2018-11-13 | 深圳市万普拉斯科技有限公司 | antenna system and mobile terminal |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020108281A1 (en) * | 2018-11-30 | 2020-06-04 | 维沃移动通信有限公司 | Antenna structure and terminal device |
| CN110518342A (en) * | 2019-09-25 | 2019-11-29 | 南昌黑鲨科技有限公司 | Multi-frequency multi-mode antenna |
| CN111370855A (en) * | 2020-03-20 | 2020-07-03 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN111370855B (en) * | 2020-03-20 | 2021-07-20 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN113451741A (en) * | 2020-03-26 | 2021-09-28 | 华为技术有限公司 | Antenna and terminal equipment |
| CN113451741B (en) * | 2020-03-26 | 2023-01-06 | 华为技术有限公司 | Antenna and terminal equipment |
| CN112002994A (en) * | 2020-08-27 | 2020-11-27 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN112002994B (en) * | 2020-08-27 | 2023-12-01 | 维沃移动通信有限公司 | Antenna structure and electronic equipment |
| CN114243265A (en) * | 2020-09-09 | 2022-03-25 | 北京小米移动软件有限公司 | Antenna structure and communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020108281A1 (en) | 2020-06-04 |
| CN109449575B (en) | 2021-03-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109449575A (en) | A kind of antenna structure and terminal device | |
| Yang et al. | Frequency-reconfigurable antennas for multiradio wireless platforms | |
| US7187338B2 (en) | Antenna arrangement and module including the arrangement | |
| CN100592572C (en) | Dual-frequency antenna | |
| US8711043B2 (en) | Wideband antenna | |
| US7453402B2 (en) | Miniature balanced antenna with differential feed | |
| Ilvonen et al. | Multiband frequency reconfigurable 4G handset antenna with MIMO capability | |
| CN102820523B (en) | Multifrequency antenna | |
| CN106684526B (en) | Electronic device with mixed mode antenna | |
| CN102349191A (en) | Frequency selective multi-band antenna for wireless communication devices | |
| JP2008529378A (en) | Balanced and unbalanced antennas | |
| CN104471790B (en) | Antenna, antenna system and communicator | |
| CN101740859B (en) | Multi-band antenna | |
| Puri et al. | A review of antennas for wireless communication devices | |
| WO2018157661A1 (en) | Antenna and terminal | |
| CN102437418A (en) | Broadband planar reconfigurable antenna system for mobile terminal | |
| CN104283006A (en) | Multi-antenna feed-in port active antenna system and related control method thereof | |
| US20140203982A1 (en) | Antenna and portable device having the same | |
| US20110227801A1 (en) | High isolation multi-band antenna set incorporated with wireless fidelity antennas and worldwide interoperability for microwave access antennas | |
| CN101483268A (en) | Different surface bending dual frequency LTCC antenna | |
| Chiu et al. | A compact folded loop antenna for LTE/GSM band mobile phone applications | |
| Song et al. | Miniature multiband and wideband 3-D slot loop antenna for mobile terminals | |
| US9147938B2 (en) | Low frequency differential mobile antenna | |
| Wang et al. | A compact coupled-fed loop antenna for mobile LTE smartphones | |
| Valkonen et al. | Dual-feed, single-CCE antenna facilitating inter-band carrier aggregation in LTE-A handsets |
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 | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |