CN108258394A - A kind of production method of multi-frequency antenna device - Google Patents
A kind of production method of multi-frequency antenna device Download PDFInfo
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- CN108258394A CN108258394A CN201810024573.6A CN201810024573A CN108258394A CN 108258394 A CN108258394 A CN 108258394A CN 201810024573 A CN201810024573 A CN 201810024573A CN 108258394 A CN108258394 A CN 108258394A
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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
- H01Q1/364—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith using a particular conducting material, e.g. superconductor
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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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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Abstract
The present invention provides a kind of production method of multi-frequency antenna device, including：The first metal layer, second metal layer, ground plane, medium substrate between metal layer and between metal layer and earth plate, it is characterized in that, metamaterial layer is provided between the first metal layer and second metal layer, the present invention, which solves, is laminated the more formidable high gain of antenna tradition preparation method, interfere small and small contradictory problems, by flexibly cleverly setting antenna cabling and coupling isolated location, realize extraordinary frequency band isolation characteristic, metamaterial unit is set between two antenna metal layers, pass through the special transport properties of Meta Materials, it further reduces antenna manufactured size and promotes the isolation between low-and high-frequency.
Description
Technical field
The invention belongs to communication antenna field, more specifically, being related to a kind of multi-frequency antenna device of smart machine
Production method.
Background technology
With the fast development of wireless telecommunications, in wireless telecommunications can only be in device product, antenna role is more
It is important.Now, since running gear has become people's indispensable article in life, communication industry has also been driven
It flourishes, also because of that, compact antenna of all kinds is developed, and is widely used in a variety of different action
In device, for example, planar inverted F-antenna, unipole antenna, three-dimensional antenna etc..However, the antenna of above-mentioned known technology but has perhaps
The shortcomings that more making us dirty disease.
For example, the structure of planar inverted F-antenna is complex, and since planar inverted F-antenna is to belong to stereoscopic antenna,
Additional die cost and assembly cost causes its cost higher, and commercial cost is excessively high, and commercial competitiveness can drop therewith
It is low.And three-dimensional antenna should not be placed into since volume is excessive in the mobile equipment to become smaller increasingly, if three-dimensional antenna reduces by force
Volume is miniaturized to realize, be easy to cause the decline of antenna performance again.Especially in multifrequency antenna field, smaller volume is often
The coupled interference between frequency range is caused, harassing between guarantee different frequency range always perplexs people while how taking into account micromation
Problem.
Therefore, a kind of multifrequency antenna how is proposed, it is higher to be effectively improved the complicated of previous antenna, cost,
The problem of isolation performance is bad has become very urgent.
Invention content
The purpose of the present invention is to provide a kind of multi-frequency antenna device production method of special construction, for solving above-mentioned skill
Art problem has shorter antenna shapes structure, passes through the setting of reasonable flexible antenna cabling and special metamaterial layer
It ensure that the isolation effect between different frequency range while realizing multifrequency.
The present invention proposes a kind of production method of multi-frequency antenna device thus, which is characterized in that includes the following steps：
（1）Meta Materials injection matching layer is made, the injection matching layer is set as metamaterial layer both sides and is bonded predetermined thickness respectively
The medium substrate of size and length dimension, the medium substrates of both sides are respectively first, second medium substrate, on the medium substrate
There are conduction through-holes；The metamaterial layer is the tax layers of copper for the transmissive electromagnetic wave signal for etching man-made microstructure；
（2）The side surface metal plating high frequency antenna cabling opposite about metamaterial layer is formed on the first medium substrate
The first metal layer, as one of radiation metal layer；
（3）Opposite about metamaterial layer side surface metal plating feed connection sheet forms the on the second medium substrate
Two metal layers；
（4）Plating feed connection sheet unexpected void region, sprays electrically conductive ink on second medium substrate, after carry out UV
Low temperature irradiation solidification forms low-frequency antenna cabling, as the metal radiation element in second metal layer；
（5）The third medium substrate that side carries third metal layer is molded, the third metal layer is set as grounding conductor layer,
By the opposite side of the third medium substrate with into cross step（4）The second metal layer formed afterwards carries out semi-solid preparation bonding, setting
It connects conductiving metal strip in medium substrate and, to the feed connection point radiated on metal layer, completes antenna setting.
Preferably, the first metal layer is operated in two high-frequency bands, and the antenna structure of the first metal layer is one positive six
The annular regular hexagon metal frame radiation fin of radiation fin peripheral hardware one among side shape, setting regular hexagon gap between two radiation fins, institute
The of same size of gap width and annular regular hexagon metal frame radiation fin is stated, the first feed connection point is located at the regular hexagon
On intermediate radiation fin.
Preferably, the second metal layer can be operated in three low frequency bands；First low-frequency range is walked for a bending shaped form
Line, for the second low-frequency range for one around walking line, third low-frequency range is a comb-type structure cabling.
Preferably, feed connection sheet is provided in second metal layer, the feed connection sheet shares three pieces, set on intermediate mass
The second feed connection point is equipped with, the feed connection sheet of both sides connects centre feed connection sheet by adjustable reactance original paper；It is intermediate
The not direct low-frequency antenna cabling in second metal layer of feed connection sheet be connected, the feed connection sheets of both sides respectively with it is low
Frequency cabling docks, and side connects the first low frequency cabling, and opposite side connects second, third low frequency cabling.
Preferably, a coupling isolated area is provided in the second metal layer, the coupling isolated area is put relatively by two
The metal wire composition put, positioned at second, third low frequency cabling between, every wires length and the of the coupling isolated area
The length dimension of three metal routings is identical.
Preferably, artificial micro-structure is provided on the Meta Materials metal layer, the artificial micro-structure aligned transfer is being situated between
On matter substrate, the cellular construction shape of the artificial micro-structure is identical, but the size of different location setting artificial micro-structure unit
It is different.
Preferably, the artificial micro-structure cellular construction is a regular hexagon outline border, and one is set at the center of regular hexagon
Annulus, the annulus connect each fixed point of regular hexagon by metal wire.
Beneficial effects of the present invention are：It solves and the more formidable high gain of antenna tradition preparation method is laminated, interferes small and body
The small contradictory problems of product, by flexibly cleverly setting antenna cabling and coupling isolated location, realize extraordinary frequency band every
From characteristic, metamaterial unit is set between two antenna metal layers, by the special transport properties of Meta Materials, further reduces day
Line manufactured size simultaneously promotes the isolation between low-and high-frequency.
Description of the drawings
Fig. 1 is the side view of inventive antenna structure.
Fig. 2 is the high frequency section of inventive antenna structure.
Fig. 3 is the low frequency part of inventive antenna structure.
Fig. 4 is inventive antenna structure metamaterial layer.
Fig. 5 is the man-made microstructure of inventive antenna structure metamaterial layer.
Fig. 6 is the frequency response collection of illustrative plates of inventive antenna at work.
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also be based on different viewpoints with application, without departing from
Various modifications or alterations are carried out under the spirit of the present invention.
It should be noted that the diagram provided in the present embodiment only illustrates the basic conception of the present invention in a schematic way,
So in schema only display with it is of the invention in related component rather than component count, shape and size during according to actual implementation paint
System, kenel, quantity and the ratio of each component can be a kind of random change, and its assembly layout kenel also may be used during actual implementation
It can be increasingly complex.
As shown in Figure 1, a kind of multi-frequency antenna device 1, including：The first metal layer 10, second metal layer 20, ground plane 40,
Medium substrate 2/3/4 between metal layer and between metal layer and earth plate, which is characterized in that in the first metal layer and
Metamaterial layer 30 is provided between second metal layer；The distribution of 1 each layer of antenna assembly is respectively：The first metal layer 10, first is situated between
Matter substrate 2, metamaterial layer 30, second medium substrate 3, second metal layer 20, third medium substrate 4, earth plate 40；Described first
Metal layer 10 and the second metal layer 20 are all correspondingly arranged on feed connection point 5/6.
In traditional preparation method, electromagnetic radiation generally is carried out using individual layer paster antenna, first, considering medium substrate and earth plate
Between dimensional thickness it is limited, the considerations of in radiation frequency bandwidth, if setting two-layer laminate, is very likely to cause frequency range band
Wide loss, being in addition in the radiation patch of middle layer its radiance can be led due to folder control between top layer and bottom metal layer
Serious lowization of radiation efficiency is caused, especially in high band or multiband, the loss characteristic of performance will become apparent from.General skill
Art personnel can have to take the second best, reduce metal layer on multiband aerial setting, by reduce frequency range cabling realize double frequency or
Most three frequency ranges are provided to preferably reduce size and obtain good antenna gain and directionality.
It is also preferred that high band is set top layer in the application, high band is compared to low-frequency range, in this case
The interference being subject to can be more serious, and return loss can significantly be promoted, and based on this, high band is arranged on top layer priority service by us, ginseng
See attached drawing 2, be operated in two high-frequency bands in the first metal layer 10, the antenna structure of the first metal layer is a regular hexagon
The annular regular hexagon metal frame radiation fin 12 of intermediate 11 peripheral hardware of radiation fin one, setting regular hexagon gap 13 between two radiation fins,
The gap width is of same size with annular regular hexagon metal frame radiation fin, to certain between different high frequencies to be obtained
Isolation, the first high frequency encourage intermediate radiation fin 11 directly to generate by distributing point 5, and the second high frequency is via coupling 13 indirect coupling of gap
It closes excitation metal frame radiation fin 12 to generate, the first feed connection point 5 is located at radiation fin 11 among the regular hexagon and deviates center
Point on.
Referring to attached drawing 3, the second metal layer 20 can be operated in three low frequency bands；First low-frequency range is a bending curve
Type cabling 24, for the second low-frequency range for one around walking line 22, third low-frequency range is a comb-type structure cabling 23.
Feed connection sheet 21 is provided in second metal layer 20, the feed connection sheet shares three pieces, set on intermediate mass
There is the second feed connection point 6, the feed connection sheet 21 of both sides connects centre feed connection sheet, electricity by adjustable reactance original paper 25
The setting of anti-element 25 more can flexibly control the Frequency Band Selection of antenna, although the diversity of currently used frequency range is very rich
Richness, however work while different frequency range, such as inessential, majority can have energy consumption, especially consider current intelligent movable
The situation of the consumes such as equipment is very serious, if it is possible to rational energy saving, it will greatly to promote usage experience, this is to set
One of the reason of adjusting reactance is put, the coupled interference between low-frequency range is in addition also allowed for, although compared with the coupling between low-frequency range
Interference is complicated not as good as high frequency, however the gain of low frequency and directionality often show generally in actual use, if it is possible to
Just carry out effective and reasonable processing in transmitting source, then it is of great advantage to the promotion of the working performance in later stage, by adjusting inductance
Connection can adjust the physics electrical length of feed connection sheet, effectively promote the emission source coupled interference between low-frequency range；Intermediate
The feed not direct low-frequency antenna cabling in second metal layer of connection sheet 21 is connected, the feed connection sheets 21 of both sides respectively with
Low frequency cabling docks, and side connects the first low frequency cabling 24, and opposite side connects second, third low frequency cabling 22/23.Antenna Operation
When, when selection connects two reactance elements simultaneously, low-frequency antenna is simultaneously operable in three low frequency bands, and three low frequencies
Coupling isolation performance it is superior.25 use of reactance component in this case is considered in low-frequency antenna, the selection of reactance component 25
Usually inductance element, however if the frequency range demand for adjusting antenna changes, adjusting reactance characteristic herein is according to entire
Change is also adjusted in the transformation of system therewith, and capacitive or perception do not do necessary restriction.
Other than physical isolation, in hardware telecommunication field, coupling isolation is also extremely important.In attached drawing 3, institute
It states and a coupling isolated area 26 is provided in second metal layer 20, the coupling isolated area 26 is by two metal wire groups staggered relatively
Into, between the second low frequency cabling 22, third low frequency cabling 23, it is described coupling isolated area 26 every wires length and
The comb part length dimension of third metal routing is identical, and outermost broach is with coupling the distance of isolated area also between adjacent fingers
Distance it is identical.It sets and couples isolated area, the pernicious coupling between the very effective antenna cabling for inhibiting physics adjacent, phase
Adjacent frequency section coupled electric field is offset each other by isolated area, realizes preferable isolation characteristic.
In addition, Meta Materials are a kind of novel artificial materials to electromagnetic wave modulating action to grow up nearly ten years,
Basic principle is the micro-structure of artificial designing material（Or artificial atom）, allow such micro-structure that there is specific electromagnetism spy
Property, the material so as to be made of the micro-structure of magnanimity number can macroscopically have desirable function solenoid.With traditional material
Material technology develops the traditional material technology of electromagnetism utilization ways difference, super material according to having the natural property of material in nature
Material technology is to come the property and manufacture material of artificial designing material as needed.Meta Materials are usually by a certain number of artificial micro-
Structure be attached to certain mechanics, electromagnetism substrate on, these micro-structures with specific pattern and material can be to passing through it
The electromagnetic wave of the special frequency channel of body generates modulating action.In recent years, Meta Materials achieve gratifying change in each communications applications field
Change and apply, the volumetric bulk of the special electromagnetic characteristic of Meta Materials and its more Boping is all very suitable for for improving day knot
Structure.
Preferably, it is preferred in the application, between the metamaterial structure layer is arranged on double layer of metal radiating layer, referring to
In attached drawing 4, artificial micro-structure 31 is provided on the Meta Materials metal layer 30, the artificial micro-structure aligned transfer is in medium base
On plate, the cellular construction shape of the artificial micro-structure is identical, and preferably metamaterial structure unit can surround substrate frame and set two
Row, according to the artificial micro-structure unit size for the Frequency Band Selection reasonable size that actual antennas works, two rows of artificial micro-structures is only
Only size is inconsistent, and purpose by setting artificial micro-structure size with adjusting the different refractivity of Electromgnetically-transparent.
Preferably it is less than first row using the size of second row artificial micro-structure in this case, so that through metamaterial layer
Afterwards, due to two rows（Can also be adjusted as needed in practical operation enhances deviation angle using multiple rows of）Refractive index incrementally become
Change so that the shooting angle of electromagnetic wave shifts, largely reduce the electric signal between lower metal layer harass with
And unnecessary metal depletion, even if enabling to the size of antenna integrally less than normal however being maintained to good independent special
Property.
By setting metamaterial layer 30 so that conventional bandwidth characteristic or even when obtaining more preferably bandwidth characteristic, realize compared with
Small antenna height.It preferably shows, the medium substrate 2 of antenna and medium substrate 3 can use smaller thickness in the application
Size is spent, antenna substrate 4 remains original size, the thickness of medium substrate 2 and medium substrate 3 and equal to medium in the application
4 thickness of substrate, and it is well known that the dimensional thickness of Meta Materials artificial micro-structure is extremely low, if minded very much, still may be used
By by setting metamaterial unit in a manner of embedded, and then the dimensional thickness of half or so that can be by reducing substrate, but still
The good characteristic of original radiating element can so be maintained.Preferably, what the antenna overall dimensions in this case improved is reduced
To 15mm*15mm*4mm.
Attached drawing 5 is as it can be seen that artificial micro-structure cellular construction 31 described in this case has a regular hexagon outline border 312, regular hexagon
Center at set an annulus 313, the annulus pass through metal wire 311 connect regular hexagon each fixed point.The side of regular hexagon
Length is set as r, metal wire 311 and regular hexagon（It if needed can also six side regular polygon of right and wrong）Angulation for α, it is different
The micro-structure refractive index of row is calculated with reference to following refractive index formula：, wherein rmaxFor
One size dimension of the upper full-size hexagon of difference row.
The structure cause antenna electromagnetic wave by when the projection that is scattered or reflected so that Antenna Operation is low
Can be also overcome during frequency range due to harassing between the frequency range that antenna volume diminution is brought, improve radiance；With reference to antenna in attached drawing 6
Frequency response collection of illustrative plates as it can be seen that Antenna Operation in three low frequencies：790MHz, 1.84GHz, 2.51GHz, antenna not only have preferably
Reflectance factor S11, and the coefficient of coup S21 in three frequency ranges is reduced to -20dB, achieves good coupling isolation
Degree；Equally in two high frequency positions, 3.45GHz and 5.02GHz, equally there is preferable coupling isolation effect.
Further, the making step that the multifrequency antenna is devised in the present invention is as follows：
（1）Meta Materials injection matching layer is made, the injection matching layer is set as metamaterial layer both sides and is bonded predetermined thickness respectively
The medium substrate of size and length dimension, the medium substrates of both sides are respectively first, second medium substrate, on the medium substrate
There are conduction through-holes；The metamaterial layer is the tax layers of copper for the transmissive electromagnetic wave signal for etching man-made microstructure；
（2）The side surface metal plating high frequency antenna cabling opposite about metamaterial layer is formed on the first medium substrate
The first metal layer, as one of radiation metal layer；
（3）Opposite about metamaterial layer side surface metal plating feed connection sheet forms the on the second medium substrate
Two metal layers；
（4）Plating feed connection sheet unexpected void region, sprays electrically conductive ink on second medium substrate, after carry out UV
Low temperature irradiation solidification forms low-frequency antenna cabling, as the metal radiation element in second metal layer；
（5）The third medium substrate that side carries third metal layer is molded, the third metal layer is set as grounding conductor layer,
By the opposite side of the third medium substrate with into cross step（4）The second metal layer formed afterwards carries out semi-solid preparation bonding, setting
It connects conductiving metal strip in medium substrate and, to the feed connection point radiated on metal layer, completes antenna setting.
The first metal layer is operated in two high-frequency bands, and the antenna structure of the first metal layer is among a regular hexagon
The annular regular hexagon metal frame radiation fin of radiation fin peripheral hardware one, setting regular hexagon gap between two radiation fins, the slit width
Degree is of same size with annular regular hexagon metal frame radiation fin, and the first feed connection point, which is located among the regular hexagon, to be radiated
On piece.
Preferably, the second metal layer can be operated in three low frequency bands；First low-frequency range is walked for a bending shaped form
Line, for the second low-frequency range for one around walking line, third low-frequency range is a comb-type structure cabling.
Preferably, feed connection sheet is provided in second metal layer, the feed connection sheet shares three pieces, set on intermediate mass
The second feed connection point is equipped with, the feed connection sheet of both sides connects centre feed connection sheet by adjustable reactance original paper；It is intermediate
The not direct low-frequency antenna cabling in second metal layer of feed connection sheet be connected, the feed connection sheets of both sides respectively with it is low
Frequency cabling docks, and side connects the first low frequency cabling, and opposite side connects second, third low frequency cabling.
Preferably, a coupling isolated area is provided in the second metal layer, the coupling isolated area is put relatively by two
The metal wire composition put, positioned at second, third low frequency cabling between, every wires length and the of the coupling isolated area
The length dimension of three metal routings is identical.
Preferably, artificial micro-structure is provided on the Meta Materials metal layer, the artificial micro-structure aligned transfer is being situated between
On matter substrate, the cellular construction shape of the artificial micro-structure is identical, but the size of different location setting artificial micro-structure unit
It is different.
Preferably, the artificial micro-structure cellular construction is a regular hexagon outline border, and one is set at the center of regular hexagon
Annulus, the annulus connect each fixed point of regular hexagon by metal wire.It is realized by the size for setting different artificial micro-structures
Required special transmission effects of Meta Materials of the invention design the micro-structure refractive index of different rows with reference to following folding in the present invention
Penetrate the calculating of rate formula：, wherein rmaxOne side for the upper full-size hexagon of different rows
Long size.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, it is impossible to assert
The specific implementation of the present invention is confined to these explanations.For those of ordinary skill in the art to which the present invention belongs, exist
Under the premise of not departing from present inventive concept, several simple deduction or replace can also be made, should all be considered as belonging to the present invention's
Protection domain.
Claims (8)
1. a kind of production method of multi-frequency antenna device, which is characterized in that include the following steps：
（1）Meta Materials injection matching layer is made, the injection matching layer is set as metamaterial layer both sides and is bonded predetermined thickness respectively
The medium substrate of size and length dimension, the medium substrates of both sides are respectively first, second medium substrate, on the medium substrate
There are conduction through-holes；The metamaterial layer is the tax layers of copper for the transmissive electromagnetic wave signal for etching man-made microstructure；
（2）The side surface metal plating high frequency antenna cabling opposite about metamaterial layer is formed on the first medium substrate
The first metal layer, as one of radiation metal layer；
（3）Opposite about metamaterial layer side surface metal plating feed connection sheet forms the on the second medium substrate
Two metal layers；
（4）Plating feed connection sheet unexpected void region, sprays electrically conductive ink on second medium substrate, after carry out UV
Low temperature irradiation solidification forms low-frequency antenna cabling, as the metal radiation element in second metal layer；
（5）The third medium substrate that side carries third metal layer is molded, the third metal layer is set as grounding conductor layer,
By the opposite side of the third medium substrate with into cross step（4）The second metal layer formed afterwards carries out semi-solid preparation bonding, setting
It connects conductiving metal strip in medium substrate and, to the feed connection point radiated on metal layer, completes antenna setting.
2. the production method of multi-frequency antenna device as described in claim 1, which is characterized in that the first metal layer is operated in
Two high-frequency bands, the antenna structure of the first metal layer is the annular regular hexagon metal of radiation fin peripheral hardware one among a regular hexagon
Frame radiation fin, setting regular hexagon gap between two radiation fins, the gap width and annular regular hexagon metal frame radiation fin
It is of same size, the first feed connection point is located among the regular hexagon on radiation fin.
3. the production method of multi-frequency antenna device as described in claim 1, which is characterized in that the second metal layer can work
In three low frequency bands；First low-frequency range is a bending shaped form structure cabling, and the second low-frequency range is a circulating type structure cabling,
Third low-frequency range is a comb-type structure cabling.
4. the production method of multi-frequency antenna device as claimed in claim 3, which is characterized in that feedback is provided in second metal layer
Electric connecting sheet, the feed connection sheet share three pieces, the second feed connection point, the feed connection sheet of both sides are provided on intermediate mass
Centre feed connection sheet is connected by adjustable reactance original paper；Intermediate feed connection sheet is not direct low in second metal layer
Frequency antenna cabling is connected, and the feed connection sheet of both sides is docked respectively with low frequency cabling, and side connects the first low frequency cabling, another
Side connects second, third low frequency cabling.
5. the production method of multi-frequency antenna device as claimed in claim 4, which is characterized in that set in the second metal layer
There is a coupling isolated area, the coupling isolated area is made of two metal wires staggered relatively, is walked positioned at second, third low frequency
Between line, every wires length of the coupling isolated area is identical with the length dimension of third metal routing.
6. the production method of multi-frequency antenna device as described in claim 1, which is characterized in that set on the Meta Materials metal layer
Artificial micro-structure is equipped with, the artificial micro-structure aligned transfer is on medium substrate, the cellular construction shape of the artificial micro-structure
Shape is identical, but the size of different location setting artificial micro-structure unit is different.
7. the production method of multi-frequency antenna device as claimed in claim 6, which is characterized in that the artificial micro-structure unit knot
Structure is a regular hexagon outline border, and an annulus is set at the center of regular hexagon, which connects regular hexagon by metal wire
Each fixed point.
8. the production method of multi-frequency antenna device as claimed in claim 7, which is characterized in that the length of side of the regular hexagon is set
For r, the angulation on the metal wire and regular hexagon one side is α, and the micro-structure refractive index of difference row refers to following refractive index
Formula calculates：
,
Wherein, rmaxOne side length of side for the upper full-size hexagon of different rows.
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| CN111509403A (en) * | 2019-01-31 | 2020-08-07 | Oppo广东移动通信有限公司 | Array antenna and electronic device |
| CN112234361A (en) * | 2019-06-30 | 2021-01-15 | Oppo广东移动通信有限公司 | Shell assembly, antenna device and electronic equipment |
| CN112688052A (en) * | 2019-10-18 | 2021-04-20 | 华为技术有限公司 | Common-aperture antenna and communication equipment |
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| CN111509403A (en) * | 2019-01-31 | 2020-08-07 | Oppo广东移动通信有限公司 | Array antenna and electronic device |
| CN112234361A (en) * | 2019-06-30 | 2021-01-15 | Oppo广东移动通信有限公司 | Shell assembly, antenna device and electronic equipment |
| CN112234361B (en) * | 2019-06-30 | 2023-09-26 | Oppo广东移动通信有限公司 | Shell assembly, antenna device and electronic equipment |
| CN112688052A (en) * | 2019-10-18 | 2021-04-20 | 华为技术有限公司 | Common-aperture antenna and communication equipment |
| CN112688052B (en) * | 2019-10-18 | 2022-04-26 | 华为技术有限公司 | Common-aperture antenna and communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108258394B (en) | 2019-11-01 |
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