CN106410380A - Mobile phone antenna with inductive coupling monopole branch and capacitive coupling ring branch - Google Patents
Mobile phone antenna with inductive coupling monopole branch and capacitive coupling ring branch Download PDFInfo
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- CN106410380A CN106410380A CN201610802456.9A CN201610802456A CN106410380A CN 106410380 A CN106410380 A CN 106410380A CN 201610802456 A CN201610802456 A CN 201610802456A CN 106410380 A CN106410380 A CN 106410380A
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- 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
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- 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
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Abstract
The invention discloses a mobile phone antenna with an inductive coupling monopole branch and a capacitive coupling ring branch. The mobile phone antenna with the inductive coupling monopole branch and the capacitive coupling ring branch comprises a medium plate, a feeder joint, a micro-strip feeder line, a main radiation circuit, an inductive coupling monopole branch, a capacitive coupling ring branch, a short-circuit nail and a floor plate; the floor plate is located on the lower surface of the medium plate, and a floor plate groove is formed in the floor plate; the micro-strip feeder line, the main radiation circuit, the inductive coupling monopole branch and the capacitive coupling ring branch are located on the upper surface of the medium plate; the micro-strip feeder line is printed on the middle line of the medium plate; the main radiation circuit is printed on the middle line of the medium plate, is connected with the micro-strip feeder line and is overlapped with the middle line of the micro-strip feeder line; the central feed needle of the feeder joint penetrates the medium plate to be connected with the micro-strip feeder line; and the outer conductor of the feeder joint is connected with the surface of the floor plate. The antenna is composed of the inductive coupling monopole branch and the capacitive coupling ring branch; and by combining with the advantages of the two structures, including, the monopole and the ring, the mobile phone antenna realizes advantages of the antenna such as multiple frequencies, broad band and easy processing under the condition of a relatively small size.
Description
Technical field
The present invention relates to radio art, add capacitive coupling ring more particularly, to a kind of inductive monopole branch road
The antenna for mobile phone of road branch road, its antenna for mobile phone is to cover 2G, 3G, 4G frequency range antenna for mobile phone.
Background technology
Although the history of mobile communication is not long, its development is very rapid, from the outside hand starting portable phone most
Machine antenna spiral external antenna, maintains communication efficiency reluctantly with analog signal；The finally appearance sum of built-in PIFA antenna
The large-scale application of word signal, mobile communication initially enters the communication stable 2G epoch, but is as the transition in epoch, people couple
The requirement of mobile phone also gets more and more.The function of only meeting basic communication can't reach the demand of people, and then the third generation moves
Dynamic multi-functional mobile phone, and forth generation smart mobile phone also because need and give birth to.The quick change of mobile communication, also leads to the fast of antenna for mobile phone
Violent advance, towards small-sized, plane, multifrequency, the direction in broadband is developed.
The conventional PIFA antenna in 2G epoch, it is three-dimensional mostly, and section is thicker, and occupancy volume ratio is larger, meets not
Mobile phone small-sized, frivolous demand.And plane single pole sub antenna and loop antenna, demand can be reached very well.Because they are flat
Face, substantially it is not take up mobile phone thickness；And they are narrow microstrip lines, can be with bending fold, cabling is free, occupancy
Area is less；Above all their self-characteristics, can produce the mould of 0.25 wavelength, the mould of 0.5 wavelength, the mould of 1 wavelength etc.
The mould of higher order, takes up room little, also enables multifrequency and covers, can meet the demand of each communications band of 2G, 3G, 4G.
Content of the invention
Faced by the present invention, the deficiency of prior art construction and shortcoming, provide the inductance of a kind of miniaturization, multiband, easy processing
The sub- branch road of coupled monopole adds the Novel cell phone antenna of capacitive coupling loop branch road.This antenna for mobile phone employs the one pole of inductive
Sub- branch road and capacitively coupled ring branch road, not only greatly reduce the volume shared by radiation area, and provide wider band
Width, can cover the basic communication frequency range of 4G（Including LTE700, LTE800, GSM850, GSM900, LTE1700, GSM1800,
DCS, PCS, UMTS, also include WIFI（2.4G）Frequency range and WIMAX frequency range (2.5G)）.
In order to achieve the above object, the technical solution used in the present invention is：
A kind of inductive monopole branch road adds the antenna for mobile phone of capacitive coupling loop branch road, including dielectric-slab, also includes feeding
Joint, microstrip feed line, radiation main line, inductive monopole branch road, capacitive coupling ring branch road, short circuit nail and floor；
Wherein said floor is located at the lower surface of dielectric-slab, and has floor trough on floor；
Wherein said microstrip feed line, radiation main line, inductive monopole branch road and capacitive coupling ring branch road are located at dielectric-slab
Upper surface, microstrip feed line is printed on the center line of dielectric-slab, radiation main line be printed on the center line of dielectric-slab, radiation main line with micro-
Ribbon feeder connects, and radiation main line is overlapped with microstrip feed line center line；
The apex drive pin of feed connection is connected through dielectric-slab with microstrip feed line, and the outer conductor of feed connection is with floor surface even
Connect；
Inductive monopole branch road is distributed in the side on radiation main line, and inlays chip inductor by three L-type minor matters, centre
Microstrip line and a folding micro-strip composition；By one is long and the other is short, two microstrip lines are vertically formed by connecting wherein three L-type minor matters；
Wherein first L-type minor matters turn clockwise 90 ° and place, and the long microstrip line of first L-type minor matters is connected with radiation main line,
Short microstrip line is connected with the microstrip line one end inlaying chip inductor；
The 90 ° of placements of second L minor matters rotate counterclockwise, leave gap between its short microstrip line and radiation main line, and short microstrip line with
The microstrip line other end inlaying chip inductor is connected, and long microstrip line connects the 3rd L-type minor matters；
3rd L-type minor matters turn clockwise 180 ° and place, and long microstrip line connects second L-type minor matters, and short microstrip line connects
Fold micro-strip；
Fold micro-strip placed longitudinally, fold micro-strip and be folded into stereo structure, be made up of a vertical plane and two horizontal planes, a water
Plane is connected in the upper surface of dielectric-slab and with the 3rd L-type minor matters end, and another horizontal plane is below dielectric-slab lower surface；
Described capacitive coupling ring branch road is distributed in the opposite side on radiation main line, and by four L-type minor matters, bending minor matters and
Individual pros shaped microstrip composition；By one is long and the other is short, two microstrip lines are vertically formed by connecting wherein four L-type minor matters；
The long microstrip line of first L-type minor matters is laterally disposed, and short microstrip line is placed longitudinally, and horizontal long microstrip line is dry with radiation
Road connects, the vertical one end connecting a laterally disposed short microstrip line of longitudinal short microstrip line, this laterally disposed short microstrip line
The other end is hanging, and the opening of first L-type minor matters is towards radiation main line；
The 90 ° of placements of second L-type minor matters rotate counterclockwise, and and capacitive coupling ring branch road in leave between first L-type minor matters between
Gap；Long microstrip line one end of second L-type minor matters is hanging, and one end of short microstrip line is connected with the 3rd L-type minor matters；
3rd L-type minor matters turn clockwise 180 ° and place, the short microstrip line of the 3rd L-type minor matters and second L-type minor matters
Short microstrip line connects, and the long microstrip line of the 3rd L-type minor matters is connected with the 4th L-type minor matters；
4th L-type minor matters turn clockwise 90 ° and place, and its long microstrip line is connected with the long microstrip line of the 3rd L-type minor matters, its
Short microstrip line is connected with bending minor matters；
Bending minor matters are made up of two U-shaped branch sections, and two U-shaped branch sections are all laterally disposed, an opening direction radiation main line,
One opening backward radiation main line；Bending minor matters one end is connected with the short microstrip line of the 4th L-type minor matters, the other end and pros
Shaped microstrip is connected；
Floor is connected with square microstrip line by short circuit nail through dielectric-slab.
Preferably, for the demand of impedance matching, the width on described radiation main line is more than the width of microstrip feed line.
Preferably, in described inductive monopole branch road, the width of three L-type minor matters is equal, and length is unequal；Capacitive
Three face width folding micro-strip in coupling ring branch road are unequal, but the width of both greater than L-type minor matters.
In described capacitive coupling ring branch road, the width of four L-type minor matters is unequal, and length is unequal.
Preferably, the gap between described second L-type minor matters of capacitive coupling ring branch road and first L-type minor matters is divided into horizontal stroke
To gap and axial clearance, two gaps in different size.
Preferably, described dielectric-slab is the solid dielectric of FR4-epoxy material.
Preferably, the lower surface of described floor part overwrite media plate is so that dielectric-slab lower surface leaves as Department of Radiation
The clearance zone dividing.
Preferably, the described floor trough positioned at dielectric-slab lower surface will be from beneath through microstrip feed line.
Preferably, the length and width of described antenna for mobile phone each several part determine according to Antenna Operation frequency and impedance matching requirements；Institute
The inductance value size stating chip inductor determines according to Antenna Operation frequency and impedance matching requirements；Described inductive monopole props up
In road, the gap length between the short microstrip line of second L minor matters and radiation main line is according to Antenna Operation frequency and impedance matching requirements
Determine.
Compared with prior art, beneficial effect is：
1st, this antenna can cover 4G all basic communications frequency range, in the case of size limitation, still can have wider low-frequency range,
Wider high-frequency band, low frequency can cover 700-1000Mhz, and high-frequency energy covers 1700-2700Mhz, but also covers
1200Ghz about GPS frequency range, disclosure satisfy that the communication of present LTE smart mobile phone.
2nd, this antenna is made up of a radiation main line and two branch roads, and structure is easily understood, and cabling train of thought is clear, Er Qieshi
, there is not the stereogenic of too many flexing it is easy to fabricate in planar structure.
3rd, there is the frequency range of each Branch control in each branch, for low-frequency range, 0.25 wavelength mould shape of one pole sub-branch
Become 750Mhz about frequency range, 0.5 wavelength mould of ring branch define 950Mhz about frequency range, so adjusting one pole sub-branch
Just can adjust antenna 750Mhz about resonance, regulation ring branch just can adjust antenna 950Mhz about resonance, increased sky
The free degree of line design.
4th, common antenna for mobile phone is a kind of structure（Monopole, PIFA or ring structure）, and this antenna combines list
Both structures of extremely son and loop, relatively new in the design of structure, advantage -- the one pole of simultaneously also having gathered two kinds of structures
Minor structure can reduce the volume of antenna, and ring structure can make antenna more stable, reduces extraneous interference and SAR value.So sky
The function of line is more stable and powerful.
5th, the slot structure on antenna floor, can further improve the impedance matching of antenna, the position of regulating tank and length and width,
The overall impedance of antenna can be changed accordingly, the direction adjustment that antenna can be allowed to want towards us, increased the control to antenna
Property.
Brief description
Fig. 1 is the birds-eye view of this antenna；
Fig. 2 is the side view of this antenna；
Fig. 3 is the enlarged drawing of the one pole sub-branch folded portion of this antenna；
Fig. 4 is the return loss plot figure of this antenna；
Fig. 5 is the return loss plot comparison diagram of this antenna loading and non-loaded cable；
Fig. 6 is return loss plot comparison diagram when this antenna floor adds groove and do not add groove.
Specific embodiment
With reference to the accompanying drawings and detailed description the present invention is described in further detail.
In figure：1- feed connection, 2- microstrip feed line, 3- radiate main line, first L in 4- inductive monopole branch road
Second L-type minor matters in type minor matters, 5- chip inductor, 6- inductive monopole branch road, 7- inductive monopole branch road
In the 3rd L-type minor matters, the folding micro-strip in 8- inductive monopole branch road, 8.1- fold micro-strip upper surface, 8.2- folding
Folded micro-strip side, 8.3- fold micro-strip lower surface, first L-type minor matters in 9- capacitive coupling ring branch road, 10- capacitive coupling ring
In the 3rd L-type minor matters in second L-type minor matters in branch road, 11- capacitive coupling ring branch road, 12- capacitive coupling ring branch road
The 4th L-type minor matters, the bending minor matters in 13- capacitive coupling ring branch road, 14- pros shaped microstrip, 15- floor trough, 16- antenna
Long side, 17- second L-type minor matters of inductive monopole branch road and radiation main line obtain gap, 18- capacitive coupling horizontal between
Gap, 19- capacitive coupling axial clearance, 20- dielectric-slab, 21- short circuit nail, 22- floor.
A kind of inductive monopole branch road adds the Novel cell phone antenna of capacitive coupling loop branch road, as accompanying drawing 1 and Fig. 2 institute
Show, antenna is planar structure, including dielectric-slab, also include feed connection, microstrip feed line, radiation main line, inductive monopole
Branch road, capacitive coupling ring branch road, short circuit nail and floor；
In the present embodiment, described inductive monopole branch road, is also to inlay the micro- of inductance by three L-type minor matters, centre
Band line and folding micro-strip composition.Wherein first L-type minor matters turn clockwise 90 ° and place, the long microstrip line of first L-type minor matters
It is connected with radiation main line, short microstrip line is connected with the microstrip line one end inlaying chip inductor, its total length is 19mm；Inlay paster
The length of the microstrip line of inductance is 10mm；The 90 ° of placements of second L minor matters rotate counterclockwise, between its short microstrip line and radiation main line
Leave gap, and short microstrip line is connected with the microstrip line other end inlaying chip inductor, long microstrip line connects the 3rd L-type minor matters
Second L minor matters, its total length is 22mm；3rd L-type minor matters turn clockwise 180 ° and place, and long microstrip line connects second
Individual L-type minor matters, short microstrip line connects folding micro-strip, and its total length is 18mm；Folded micro-strip is placed longitudinally, folds micro- as shown in Fig. 3
Band is folded into stereo structure, is made up of a vertical plane and two horizontal planes, and horizontal plane is in the upper surface of dielectric-slab and with
Three L-type minor matters 7 ends are connected, and another horizontal plane is below dielectric-slab lower surface.The length of plane shared by it is 18.5mm；
First, secondth, the width of the width of three L-type minor matters and the microstrip line inlaying chip inductor is all 1mm, the inductance value of chip inductor
For 5nH, the width that folded micro-strip paves into plane is 10mm, and the size of these branches, is that Antenna Impedance Matching reaches optimum
When value.So the total length of inductive monopole branch road is 88mm, the low resonance point of formation is in 750Mhz, and corresponds to
0.25 times of vacuum wavelength of 750Mhz is 107.5mm.Why length reduces, and is primarily due to inductive monopole branch road
The reason add inductance, adds inductance can reduce electrical length.Therefore, inductive monopole branch road controls in antenna low frequency
The frequency range of this part of 750Mhz, this point can observe the current distributing figure in 750Mhz for the antenna to verify.
Above-mentioned chip inductor not only can reduce the electrical length of branch, also can effectively adjust the impedance of antenna, Fig. 5 is just
It is coilloading and when not having coilloading, the S11 parameter of antenna, from the figure, it can be seen that adding inductance, increase low frequency and high frequency
Bandwidth.
In the present embodiment, described capacitive coupling ring branch road is distributed in the opposite side on radiation main line, or by four L-type branches
Section, bending minor matters and a square shaped microstrip composition.The long microstrip line of first L-type minor matters is laterally disposed, dry with radiation
Road is connected, and short microstrip line is placed longitudinally, vertical one end connecting a laterally disposed short microstrip line, this laterally disposed short micro-strip
The line other end is hanging, and towards radiation main line, its length is 24mm to the opening of first L-type minor matters, and width is 1mm；Second L-type
The placement of 90 ° of minor matters rotate counterclockwise, and and capacitive coupling ring branch road in leave gap between first L-type minor matters.Second L-type branch
Long microstrip line one end of section is hanging, and one end of short microstrip line is connected with the 3rd L-type minor matters, and its length is 22.2mm, and width is
2mm；3rd L-type minor matters turn clockwise 180 ° and place, the short microstrip line of the 3rd L-type minor matters and second L-type minor matters
Short microstrip line connects, and the long microstrip line of the 3rd L-type minor matters is connected with the 4th L-type minor matters, and its length is 19mm, width
1.5mm；4th L-type minor matters turn clockwise 90 ° and place, and its long microstrip line is connected with the long microstrip line of the 3rd L-type minor matters,
Its short microstrip line is connected with bending minor matters, and its length is 15.8mm, and width is respectively 1mm and 0.5mm；Bending minor matters length is
15.6mm, width is 0.5mm, and the length of side of square shaped microstrip is 2mm, and the size of equally these branches is provided to adapt to optimum
Impedance matching.So its capacitive coupling ring branch road total length is about 99mm, the low resonance point of formation is in 950Mhz.Corresponding
950Mhz 0.5 times of vacuum wavelength be 157mm, why length is little so many, and one side electromagnetic wave is on dielectric-slab
Wavelength is less than vacuum wavelength, and on the other hand bending branch plays the effect of inductance, indirectly reduces electrical length.Therefore ring
Branch road controls the frequency range of this part of 950Mhz in antenna low frequency, and this point can observe the CURRENT DISTRIBUTION in 950Mhz for the antenna
Figure is verifying.
Floor is connected with square microstrip line by short circuit nail through dielectric-slab.
In the present embodiment, described dielectric-slab length is 120mm, and width is 60mm, highly for 0.8mm, relative medium
Constant is 4.4.Above-mentioned floor length is 99mm, and width is 60mm, and slot length therein is 38mm, and width is 2mm.This groove
Create a 1220Mhz about GPS frequency range, this can also observe the current distributing figure in 1220Mhz for the antenna.（From figure
In it is known that, have substantial amounts of current convergence at this frequency near floor trough）；And the impedance matching to antenna for this groove
Play a significantly greater role, from Fig. 6 it is seen that, added floor trough, made two resonance points of antenna low-frequency range be connected in one
Rise, increased the bandwidth of low frequency, greatly improved the impedance of high band simultaneously, also increase the bandwidth of high band.
The foregoing is only an example of the present invention, not thereby limit the scope of the claims of the present invention, every utilization is originally
Equivalent structure or flow process conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other related technology
Field, is included within the scope of the present invention.
Claims (3)
1. a kind of inductive monopole branch road adds the antenna for mobile phone of capacitive coupling loop branch road, and including dielectric-slab, its feature exists
In, also include feed connection, microstrip feed line, radiation main line, inductive monopole branch road, capacitive coupling ring branch road, short circuit nail
And floor；
Wherein said floor is located at the lower surface of dielectric-slab, and the floor trough opened on floor；
Wherein said microstrip feed line, radiation main line, inductive monopole branch road and capacitive coupling ring branch road are located at dielectric-slab
Upper surface, microstrip feed line is printed on the center line of dielectric-slab, radiation main line be printed on the center line of dielectric-slab, radiation main line with micro-
Ribbon feeder connects, and radiation main line is overlapped with microstrip feed line center line；
The apex drive pin of feed connection is connected through dielectric-slab with microstrip feed line, and the outer conductor of feed connection is with floor surface even
Connect；
Inductive monopole branch road is distributed in the side on radiation main line, and inlays chip inductor by three L-type minor matters, centre
Microstrip line and a folding micro-strip composition；By one is long and the other is short, two microstrip lines are vertically formed by connecting wherein three L-type minor matters；
Wherein first L-type minor matters turn clockwise 90 ° and place, and the long microstrip line of first L-type minor matters is connected with radiation main line,
Short microstrip line is connected with the microstrip line one end inlaying chip inductor；
The 90 ° of placements of second L minor matters rotate counterclockwise, leave gap between its short microstrip line and radiation main line, and short microstrip line with
The microstrip line other end inlaying chip inductor is connected, and long microstrip line connects the 3rd L-type minor matters；
3rd L-type minor matters turn clockwise 180 ° and place, and long microstrip line connects second L-type minor matters, and short microstrip line connects
Fold micro-strip；
Fold micro-strip placed longitudinally, fold micro-strip and be folded into stereo structure, be made up of a vertical plane and two horizontal planes, a water
Plane is connected in the upper surface of dielectric-slab and with the 3rd L-type minor matters end, and another horizontal plane is below dielectric-slab lower surface；
Described capacitive coupling ring branch road is distributed in the opposite side on radiation main line, and by four L-type minor matters, bending minor matters and
Individual pros shaped microstrip composition；By one is long and the other is short, two microstrip lines are vertically formed by connecting wherein four L-type minor matters；
The long microstrip line of first L-type minor matters is laterally disposed, and short microstrip line is placed longitudinally, and horizontal long microstrip line is dry with radiation
Road connects, the vertical one end connecting a laterally disposed short microstrip line of longitudinal short microstrip line, this laterally disposed short microstrip line
The other end is hanging, and the opening of first L-type minor matters is towards radiation main line；
The 90 ° of placements of second L-type minor matters rotate counterclockwise, and and capacitive coupling ring branch road in leave between first L-type minor matters between
Gap；Long microstrip line one end of second L-type minor matters is hanging, and one end of short microstrip line is connected with the 3rd L-type minor matters；
3rd L-type minor matters turn clockwise 180 ° and place, the short microstrip line of the 3rd L-type minor matters and second L-type minor matters
Short microstrip line connects, and the long microstrip line of the 3rd L-type minor matters is connected with the 4th L-type minor matters；
4th L-type minor matters turn clockwise 90 ° and place, and its long microstrip line is connected with the long microstrip line of the 3rd L-type minor matters, its
Short microstrip line is connected with bending minor matters；
Bending minor matters are made up of two U-shaped branch sections, and two U-shaped branch sections are all laterally disposed, an opening direction radiation main line,
One opening backward radiation main line；Bending minor matters one end is connected with the short microstrip line of the 4th L-type minor matters, the other end and pros
Shaped microstrip is connected；
Floor is connected with square microstrip line by short circuit nail through dielectric-slab.
2. antenna for mobile phone according to claim 1 is it is characterised in that for the demand of impedance matching, described radiation main line
Width be more than microstrip feed line width.
3. antenna for mobile phone according to claim 1 is it is characterised in that three L-types in described inductive monopole branch road
The width of minor matters is equal, and length is unequal；Three face width folding micro-strip in capacitive coupling ring branch road are unequal, but both greater than
The width of L-type minor matters；
In described capacitive coupling ring branch road, the width of four L-type minor matters is unequal, and length is unequal.
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| CN201610802456.9A CN106410380B (en) | 2016-09-05 | 2016-09-05 | A kind of inductive coupling monopole branch adds the antenna for mobile phone of capacitive coupling loop branch |
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| CN201610802456.9A CN106410380B (en) | 2016-09-05 | 2016-09-05 | A kind of inductive coupling monopole branch adds the antenna for mobile phone of capacitive coupling loop branch |
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Cited By (9)
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| CN108511892A (en) * | 2018-02-28 | 2018-09-07 | 哈尔滨工程大学 | A kind of compact multi-band antennas |
| CN109301476A (en) * | 2018-11-21 | 2019-02-01 | 深圳市信维通信股份有限公司 | A kind of metal back cover plate LTE ultra-wide band antenna |
| CN109378586A (en) * | 2018-11-28 | 2019-02-22 | 英业达科技有限公司 | More feed antennas |
| CN110350272A (en) * | 2019-07-02 | 2019-10-18 | 湖南赛博诺格电子科技有限公司 | A kind of 90 ° of phase shifters of mode transmission miniaturization |
| CN110635234A (en) * | 2019-09-24 | 2019-12-31 | 环鸿电子（昆山）有限公司 | Antenna structure |
| CN112787091A (en) * | 2020-12-30 | 2021-05-11 | 北京微芯区块链与边缘计算研究院 | Antenna circuit based on pi-type distributed matching sub-circuit |
| CN113285221A (en) * | 2021-05-21 | 2021-08-20 | 昆山睿翔讯通通信技术有限公司 | Broadband terminal antenna and mobile terminal |
| US11189920B2 (en) | 2019-09-18 | 2021-11-30 | Boe Technology Group Co., Ltd. | Control substrate, liquid crystal phase shifter and method of forming control substrate |
| WO2021249465A1 (en) * | 2020-06-11 | 2021-12-16 | 维沃移动通信有限公司 | Antenna structure and electronic device |
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| CN108511892A (en) * | 2018-02-28 | 2018-09-07 | 哈尔滨工程大学 | A kind of compact multi-band antennas |
| CN108511892B (en) * | 2018-02-28 | 2020-04-03 | 哈尔滨工程大学 | Compact multi-band antenna |
| CN109301476A (en) * | 2018-11-21 | 2019-02-01 | 深圳市信维通信股份有限公司 | A kind of metal back cover plate LTE ultra-wide band antenna |
| CN109301476B (en) * | 2018-11-21 | 2023-12-01 | 深圳市信维通信股份有限公司 | Flat LTE (Long term evolution) ultra-wideband antenna with metal back cover |
| CN109378586B (en) * | 2018-11-28 | 2021-01-29 | 英业达科技有限公司 | Multi-feed antenna |
| CN109378586A (en) * | 2018-11-28 | 2019-02-22 | 英业达科技有限公司 | More feed antennas |
| CN110350272A (en) * | 2019-07-02 | 2019-10-18 | 湖南赛博诺格电子科技有限公司 | A kind of 90 ° of phase shifters of mode transmission miniaturization |
| US11189920B2 (en) | 2019-09-18 | 2021-11-30 | Boe Technology Group Co., Ltd. | Control substrate, liquid crystal phase shifter and method of forming control substrate |
| CN110635234A (en) * | 2019-09-24 | 2019-12-31 | 环鸿电子（昆山）有限公司 | Antenna structure |
| WO2021249465A1 (en) * | 2020-06-11 | 2021-12-16 | 维沃移动通信有限公司 | Antenna structure and electronic device |
| CN112787091A (en) * | 2020-12-30 | 2021-05-11 | 北京微芯区块链与边缘计算研究院 | Antenna circuit based on pi-type distributed matching sub-circuit |
| CN113285221A (en) * | 2021-05-21 | 2021-08-20 | 昆山睿翔讯通通信技术有限公司 | Broadband terminal antenna and mobile terminal |
| CN113285221B (en) * | 2021-05-21 | 2024-03-22 | 昆山睿翔讯通通信技术有限公司 | Broadband terminal antenna and mobile terminal |
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