CN109286077A - Mobile device - Google Patents
Mobile device Download PDFInfo
- Publication number
- CN109286077A CN109286077A CN201810234411.5A CN201810234411A CN109286077A CN 109286077 A CN109286077 A CN 109286077A CN 201810234411 A CN201810234411 A CN 201810234411A CN 109286077 A CN109286077 A CN 109286077A
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- Prior art keywords
- feed
- branch
- mobile device
- slot
- band
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Classifications
-
- 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
-
- 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
- H01Q1/44—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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
-
- 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
A kind of mobile device.The mobile device includes: a metal back cover, a grounded metal portion, a feed-in irradiation unit and a medium substrate；Metal back cover has a slot；Grounded metal portion is coupled to metal back cover；Feed-in irradiation unit has a load point, and including one first feed-in branch, one second feed-in branch, and a third feed-in branch, wherein the second feed-in branch is made to extend in the opposite direction with the first feed-in branch, and third feed-in branch is made to extend in the same direction with the first feed-in branch；Upright projection of the feed-in irradiation unit in metal back cover and slot are least partially overlapped；Medium substrate is adjacent to metal back cover, and wherein grounded metal portion and feed-in irradiation unit are all set on medium substrate；Wherein an antenna structure is collectively formed in feed-in irradiation unit and the slot of metal back cover.The present invention has small size, broadband, promotes low-and high-frequency antenna efficiency, increases device stability, the advantage of beautifying apparatus external form, is suitably applied in various various mobile communications devices.
Description
Technical field
The present invention relates to a kind of mobile device, in particular to a kind of mobile device and its antenna structure (Antenna
Structure)。
Background technique
With the prosperity of mobile communication technology, mobile device is more prevalent in recent years, it is common for example: portable calculating
Machine, mobile phone, multimedia player and other mixed functions portable electronic apparatus.In order to meet the needs of people,
Mobile device usually has the function of wireless communication.Some cover the range for wireless communication of long range, such as: mobile phone uses
2G, 3G, LTE (Long Term Evolution) system and its used 700MHz, 850MHz, 900MHz, 1800MHz,
The frequency band of 1900MHz, 2100MHz, 2300MHz and 2500MHz are communicated, and some then cover short-range wireless communication
Range, such as: Wi-Fi, Bluetooth system are communicated using the frequency band of 2.4GHz, 5.2GHz and 5.8GHz.
Handsome in appearance in order to pursue, the element of hardware can be often added in designer in the mobile device now.However, new
The hardware of increasing is but easy for supporting the antenna of wireless communication to have a negative impact in mobile device, and then reduces mobile dress
The integrated communication quality set.Therefore, it is necessary to a kind of completely new mobile device and antenna structure be proposed, to overcome traditional technology institute
Problems faced.
Accordingly, it is desirable to provide a kind of mobile device solves the above problems.
Summary of the invention
In the preferred embodiment, the present invention provides a kind of mobile device, which includes: a metal back cover, the gold
Belonging to back-cover has a slot；One grounded metal portion, the grounded metal portion are coupled to the metal back cover；One feed-in irradiation unit, the feedback
Enter irradiation unit with a load point, wherein the feed-in irradiation unit includes: one first feed-in branch, wherein the first feed-in branch
One end is coupled to the load point, which has one first polygon, which at least has a long axis
And a short axle, and the long axis of first polygon extends along first direction work；One second feed-in branch, wherein second feedback
The one end for entering branch is coupled to the load point, which has one second polygon, which at least has
Have a long axis and a short axle, the long axis of second polygon extends along second direction work, and the second direction and this first
It is contrary；And a third feed-in branch, wherein one end of the third feed-in branch is coupled to the load point, the third feed-in
Branch has a third polygon, which at least has a long axis and a short axle, and the length of the third polygon
Axis extends along first direction work；And a medium substrate, the medium substrate is adjacent to the metal back cover, the wherein grounded metal
Portion and the feed-in irradiation unit are all set on the medium substrate；The wherein upright projection of the feed-in irradiation unit in the metal back cover
It is least partially overlapped with the slot；Wherein an antenna structure is collectively formed in the feed-in irradiation unit and the slot of the metal back cover.
In some embodiments, which is a silent slot and is presented a rectangle, and a long axis of the slot and this
The long axis of the long axis of one feed-in branch, the long axis of the second feed-in branch and the third feed-in branch is all mutually equal
Row.
In some embodiments, the first feed-in branch, the second feed-in branch and the third feed-in branch is each
The other end of person is all respectively an open end.
In some embodiments, which is presented a rectangle.
In some embodiments, which is presented a rectangle or a L-shaped.
In some embodiments, which is presented a rectangle, a L-shaped or a U-shaped.
In some embodiments, which is a ground connection copper foil, and by extending to the metal on the medium substrate
In back-cover.
In some embodiments, one first coupling gap is formed between the first feed-in branch and the third feed-in branch,
And the width of first coupling gap is less than or equal to the width of the slot.
In some embodiments, one second coupling gap is formed between the second feed-in branch and the grounded metal portion, and
The width of second coupling gap is less than or equal to the width of the slot.
In some embodiments, which covers a first band and a second band, the first band between
2400MHz between 2500MHz, and the second band between 5150MHz between 5875MHz.
In some embodiments, the length of the slot is equal to 0.5 times of wavelength of the centre frequency of the first band.
In some embodiments, the length of the first feed-in branch is equal to 0.25 times of wave of the centre frequency of the first band
It is long.
In some embodiments, the first feed-in branch and the excitation of the slot of the metal back cover generate the first band.
In some embodiments, the length of the second feed-in branch is equal to 0.25 times of wave of the centre frequency of the second band
It is long.
In some embodiments, the second feed-in branch excitation generates the second band.
In some embodiments, 0.125 times of centre frequency between the first band of the length of the third feed-in branch
To between 0.25 times of wavelength.
In some embodiments, which is used to increase the radiation efficiency of the first band He the second band
And bandwidth of operation.
Compared to traditional design, the present invention at least get both small size, broadband, promoted low-and high-frequency antenna efficiency, increase dress
The advantage of stability and beautifying apparatus external form is set, therefore it is well suited for being applied in various various mobile communications devices.
Detailed description of the invention
Figure 1A shows the top view of mobile device described in an embodiment according to the present invention.
Figure 1B shows the side view of mobile device described in an embodiment according to the present invention.
Fig. 2 shows the voltage standing wave ratio figure of the antenna structure of mobile device described in an embodiment according to the present invention.
Fig. 3 shows the top view of mobile device described in an embodiment according to the present invention.
Fig. 4 shows the top view of mobile device described in an embodiment according to the present invention.
Fig. 5 shows the top view of mobile device described in an embodiment according to the present invention.
Fig. 6 shows the top view of mobile device described in an embodiment according to the present invention.
Primary clustering symbol description:
100,300,400,500,600 mobile device
110 metal back covers
The edge of 111 metal back covers
120 slots
121, the closed end of 122 slots
130,330,430,530 feed-in irradiation unit
140,340,540 first feed-in branch
141, the open end of 341,541 first feed-in branches
150,350,450,550 second feed-in branch
151, the open end of 351,451,551 second feed-in branches
160,360,560 third feed-in branch
161, the open end of 361,561 third feed-in branches
170 medium substrates
180,680 grounded metal portion
The end bending part of 365 third feed-in branches
The end bending part of 455 second feed-in branches
The first surface of E1 medium substrate
The second surface of E2 medium substrate
FB1 first band
FB2 second band
FP load point
The first coupling gap of GC1
The second coupling gap of GC2
W1, W2 width
X X-axis
Y Y-axis
Z Z axis
Specific embodiment
For objects, features and advantages of the present invention can be clearer and more comprehensible, specific embodiments of the present invention are cited below particularly out,
And cooperate appended attached drawing, it is described in detail below.
Some vocabulary is used in specification and claims to censure specific element.Those skilled in the art
, it is to be appreciated that hardware manufacturer may call the same element with different nouns.Present specification and claims are simultaneously
Not in such a way that the difference of title is as element is distinguished, but with the difference of element functionally as the criterion of differentiation.
"comprising" and one word of " comprising " mentioned in working as in specification and claims in the whole text are open term, therefore should be explained
At " include but be not limited to "." substantially " word then refers to that those skilled in the art can within an acceptable error range
The technical problem is solved within a certain error range, reaches the basic technical effect.In addition, " coupling " word is in this theory
Include any direct and indirect means of electrical connection in bright book.Therefore, if it is described herein that a first device is coupled to one second
Device, then the second device can be directly electrically connected to by representing the first device, or via other devices or connection means and
Ground connection is electrically connected to the second device.
Figure 1A shows the top view of mobile device 100 described in an embodiment according to the present invention.Figure 1B is shown according to this hair
The side view of mobile device 100 described in a bright embodiment.Please also refer to Figure 1A, Figure 1B.Mobile device 100 can be an intelligence
It can type mobile phone (Smart Phone), a tablet computer (Tablet Computer) or a notebook computer
(Notebook Computer).In the embodiment of Figure 1A, Figure 1B, mobile device 100 includes: a metal back cover (Metal
Back Cover) 110, one feed-in irradiation unit (Feeding Radiation Element) 130, one medium substrate
(Dielectric Substrate) 170 and a grounded metal portion (Ground Metal Element) 180.It must be understood that
Although being not depicted in Figure 1A, Tu1BZhong, actually mobile device 100 may also include other elements, such as: a processing
Device (Processor), a touch panel (Touch Control Panel), a loudspeaker (Speaker), a battery module
(Battery Module) and shell (Housing).In further embodiments, it is variable to be implemented on one for mobile device 100
Shape dress sets (Deformable Device), can be in a plate mode (Tablet Mode) or a notebook mode
Operation is switched between (Notebook Mode).
Metal back cover 110 has a slot (Slot) 120, and wherein slot 120 can substantially a vertical bar shaped aperture or a square
Shape aperture.Specifically, slot 120 is a silent slot (Closed Slot), has two closed ends away from each other
(Closed End)121,122.However, the present invention is not limited to this.In other embodiments, slot 120 can also be changed to one
Monopole slot (Monopole Slot) has an open end (Open End) away from each other and a closed end.If mobile dress
It sets 100 and is implemented on a notebook computer or a deformable device, then an edge 111 of metal back cover 110 can be adjacent to this
A rotating assembly (Hinge Element) (not shown) of notebook computer or deformable device.For example, metal back cover
110 edge 111 and the spacing of Spiale element are smaller than 10mm.
Feed-in irradiation unit 130 can as made by metal material, such as: copper, silver, aluminium, iron or its alloy.Medium substrate
170 can be a FR4 (Flame Retardant 4) substrate, a printed circuit board (Printed Circuit Board, PCB),
An or flexible circuit board (Flexible Circuit Board, FCB).Medium substrate 170 can have one first opposite table
A face E1 and second surface E2, wherein feed-in irradiation unit 130 and grounded metal portion 180 are all set to the first of medium substrate 170
On the E1 of surface, and the second surface E2 of medium substrate 170 can be close or be mounted directly in metal back cover 110 (adjacent to slot
120), so that medium substrate 170 almost covers the slot 120 of metal back cover 110.It must be noted that this specification
In so-called " neighbouring " or " adjacent " word can refer to corresponding two element spacing less than one both set a distance (such as: 5mm or shorter), also
It may include the case where corresponding two element is in direct contact with one another (also that is, aforementioned hypotelorism to 0).
Grounded metal portion 180 is coupled to metal back cover 110, and both this can provide an earthing potential of mobile device 100
(Ground Voltage).For example, grounded metal portion 180 can be ground connection copper foil (Ground Copper Foil), it can be by
It is extended on medium substrate 170 in metal back cover 110.Feed-in irradiation unit 130 has a load point FP, may be coupled to a signal
The one of source (Signal Source) (not shown) is positive (Positive Electrode), and a cathode of this signal source
(Negative Electrode) may be coupled to grounded metal portion 180.For example, signal source above-mentioned can be a radio frequency (Radio
Frequency, RF) module, it can be used to generate a transmitting signal or processing one receives signal.In some embodiments, signal
The anode in source is coupled to load point FP via a center conductor of a coaxial wire (Coaxial Cable), and signal source
Cathode is coupled to grounded metal portion 180 via a conductor casing of coaxial wire.Feed-in irradiation unit 130 extends across metal back
The slot 120 of lid 110.Also (including the first feed-in branch 140, the second feed-in branch 150, Yi Ji that is, feed-in irradiation unit 130
Three feed-in branches 160) 110 upright projection (Vertical Projection) and slot 120 be at least partly in metal back cover
Overlapping.
Specifically, feed-in irradiation unit 130 is presented including one first feed-in branch (Feeding Branch) 140, one second
Enter branch 150 and a third feed-in branch 160.First feed-in branch 140, the second feed-in branch 150 and third feed-in
The combination of 160 three of branch may include the Y-shaped coupling part around load point FP.First feed-in branch 140 has one
A rectangle or a L-shaped can be substantially presented in first polygon (Polygon).One end of first feed-in branch 140 is coupled to feedback
Access point FP, and the other end of the first feed-in branch 140 is an open end (Open End) 141.The first of first feed-in branch 140
Polygon at least has a long axis (Long Axis) and a short axle (Short Axis), wherein the long axis of the first polygon is along one
First direction work extends, such as :+X-direction.For example, the long axis of the first polygon can for by open end 141 and with+X
Axis one first virtual line parallel to each other.Second feed-in branch 150 has one second polygon, and a rectangle can substantially be presented
An or L-shaped.One end of second feed-in branch 150 is coupled to load point FP, and the other end of the second feed-in branch 150 is opened for one
Terminal 151.Second polygon of the second feed-in branch 150 at least has a long axis and a short axle, wherein the length of the second polygon
Axis extends along second direction work, such as :-X-direction.For example, the long axis of the second polygon can be to pass through open end 151
And with-X-axis one second virtual line parallel to each other.In other words, second direction above-mentioned can with first direction above-mentioned on the contrary,
So that the first feed-in branch 140 and the second feed-in branch 150 can substantially be made to extend in the opposite direction.For example, the first feed-in branch
140 open end 141 can extend towards+X-direction work, and the open end 151 of the second feed-in branch 150 can be towards-X-direction
Work extends.Third feed-in branch 160 can have a third polygon, and a rectangle or a L-shaped can substantially be presented.Third feed-in
One end of branch 160 is coupled to load point FP, and the other end of third feed-in branch 160 is an open end 161.Third feed-in branch
The third polygon on road 160 at least has a long axis and a short axle, and wherein the long axis of third polygon is also along first party above-mentioned
Extend to work, such as :+X-direction.For example, the long axis of third polygon can be mutual by open end 161 and with+X-axis
A parallel third virtual line.In other words, the first feed-in branch 140 and third feed-in branch 160 can substantially in the same direction
Work extends.For example, the open end 141 of the first feed-in branch 140 can extend towards+X-direction work, and third feed-in branch 160
Open end 161 can also extend towards+X-direction work.First feed-in branch 140, the second feed-in branch 150 and third feedback
The each for entering branch 160 is all at least partly parallel to the slot 120 of metal back cover 110.In some embodiments, slot 120
A long axis (passing through two closed ends 121,122) and the long axis of the first feed-in branch 140, the second feed-in branch 150 long axis,
And the long axis of third feed-in branch 160 is all parallel to each other.In addition, between the first feed-in branch 140 and third feed-in branch 160
One first coupling gap (Coupling Gap) GC1 can be formed, and can between the second feed-in branch 150 and grounded metal portion 180
Form one second coupling gap GC2.In the preferred embodiment, metal back cover 110, slot 120 and feed-in irradiation unit 130 are total
With formation one antenna structure (Antenna Structure).
Fig. 2 shows the voltage standing wave ratio of the antenna structure of mobile device 100 described in an embodiment according to the present invention
(Voltage Standing Wave Ratio, VSWR) figure, wherein horizontal axis represents operating frequency (MHz), and the longitudinal axis represents voltage
Standing-wave ratio.Measurement result according to fig. 2, when receiving or transmitting wireless signal, the antenna structure of mobile device 100 can cover one
A first band FB1 and second band FB2, wherein first band FB1 it is reducible between 2400MHz between 2500MHz, and second
Frequency band FB2 it is reducible between 5150MHz between 5875MHz.Therefore, the antenna structure of mobile device 100 can at least be supported
The broadband operation of Bluetooth and WLAN (Wireless Local Area Network) 2.4GHz/5GHz.According to practical survey
Amount is as a result, antenna efficiency (Antenna Efficiency) of the antenna structure in first band FB1 of mobile device 100 about may be used
Up to -3.78dB, and the about reachable -3.95dB (antenna efficiency of its more traditional slot antenna of the antenna efficiency in second band FB2
About 2 to 4dB) are promoted, the practical application request of general mobile communications device can be met.
In some embodiments, the operating principle of the antenna structure of mobile device 100 can be as what follows.First feed-in branch
The slot 120 of road 140 and metal back cover 110 generates first band FB1 above-mentioned for exciting.Second feed-in branch 150 is used for
Excitation generates second band FB2 above-mentioned.Third feed-in branch 160 can also couple excitation by the first feed-in branch 140, with same
The radiation efficiency (Radiation Efficiency) and bandwidth of operation of Shi Zengjia first band FB1 and second band FB2
(Operation Bandwidth).Due to feed-in irradiation unit 130 have a serpentine shape (Meandering Shape) (such as:
Three different feed-in branches), therefore the entire area of its antenna structure that can will substantially reduce mobile device 100.
In some embodiments, the component size of mobile device 100 can be as what follows.Slot 120 length (also that is,
By closed end 121 to the length of another closed end 122) it can be substantially equal to the centre frequency (Central of aforementioned first band FB1
Frequency 0.5 times of wavelength (λ/2)).The length of first feed-in branch 140 is (also that is, by load point FP to open end 141
Length) can be substantially equal to aforementioned first band FB1 centre frequency 0.25 times of wavelength (λ/4).The length of second feed-in branch 150
Degree (also that is, by load point FP to the length of open end 151) can be substantially equal to the 0.25 of the centre frequency of aforementioned second band FB2
Times wavelength (λ/4).The length (also that is, by load point FP to the length of open end 161) of third feed-in branch 160 can be between aforementioned
0.125 times of the centre frequency of first band FB1 is to (λ/8~λ/4) between 0.25 times of wavelength.For the coupling between reinforcing element
Effect, the width of the first coupling gap GC1 may be less than or equal to the width W1 of slot 120, and the width of the second coupling gap GC2
Be also smaller than or equal to slot 120 width W1.The above component size range is found out according to many experiments result, is facilitated excellent
Change the operational frequency bands and impedance matching (Impedance Matching) of the antenna structure of mobile device 100.
It is to be understood that the shape of the above feed-in irradiation unit 130 can be finely adjusted according to different demands.For example, first
Y-shaped coupling part between feed-in branch 140, the second feed-in branch 150 and third feed-in branch 160 is (also that is, feed-in
The vicinity point FP) smoother shape can be modified to remove discontinuous jagged edges, but effect of the invention will not be influenced.
Place of matchmakers is mentioned the different of antenna structure and configured by following embodiment, precisely because accompanying drawings and description are by way of example only, not for limit
The scope of the present invention processed.
Fig. 3 shows the top view of mobile device 300 described in an embodiment according to the present invention.Fig. 3 is similar with Figure 1A.Scheming
In 3 embodiment, a feed-in irradiation unit 330 of mobile device 300 includes one first feed-in branch 340, one second feed-in branch
350 and a third feed-in branch 360, wherein third feed-in branch 360 further includes an end bending part 365, so that third
An open end 341 of one open end 361 of feed-in branch 360 closer to the first feed-in branch 340.End bending part 365 can
It is substantially orthogonal with the rest part of third feed-in branch 360.Third feed-in branch 360 with end bending part 365
A U-shaped can be substantially presented in (also that is, third polygon).The addition of end bending part 365 can reduce the first feed-in branch 340
The equivalent width of the first coupling gap GC1 between third feed-in branch 360, to strengthen the first feed-in branch 340 and third
Coupling effect between feed-in branch 360.Under this design, spoke of the antenna structure of mobile device 300 in first band FB1
Penetrating efficiency can further be promoted.Remaining feature of the mobile device 300 of Fig. 3 is all similar with the mobile device 100 of Figure 1A, Figure 1B,
So two embodiments may achieve similar operating effect.
Fig. 4 shows the top view of mobile device 400 described in an embodiment according to the present invention.Fig. 4 is similar with Fig. 3.In Fig. 4
Embodiment in, one second feed-in branch 450 of a feed-in irradiation unit 430 of mobile device 400 further includes an end bending part
Points 455, so that an open end 451 of the second feed-in branch 450 is closer to grounded metal portion 180.End bending part 455 can be with
The rest part of second feed-in branch 450 is substantially orthogonal.The second feed-in branch 450 with end bending part 455 is (also
That is, the second polygon) L-shaped can substantially be presented.The addition of end bending part 455 can reduce 450 He of the second feed-in branch
The equivalent width of the second coupling gap GC2 between grounded metal portion 180, to finely tune the second feed-in branch 450 and grounded metal
The impedance matching in portion 180.Under this design, radiation efficiency of the antenna structure of mobile device 400 in second band FB2 can be into
One step is promoted.Remaining feature of the mobile device 400 of Fig. 4 is all similar with the mobile device of Fig. 3 300, so two embodiments
Reach similar operating effect.
Fig. 5 shows the top view of mobile device 500 described in an embodiment according to the present invention.Fig. 5 is similar with Figure 1A.Scheming
In 5 embodiment, a feed-in irradiation unit 530 of mobile device 500 includes one first feed-in branch 540, one second feed-in branch
550 and a third feed-in branch 560, wherein the width W2 of the first feed-in branch 540 obviously increase (such as: the width of Fig. 5
W2 is about two times or more of the width W2 of Figure 1A) so that upright projection of the first feed-in branch 540 in metal back cover 110
It is least partially overlapped with slot 120.For example, the width W2 of the first feed-in branch 540 can be greater than or equal to the width of slot 120
W1, but also it is not limited only to this.Widening for first feed-in branch 540 can reduce the first feed-in branch 540 and third feed-in branch 560
Between the first coupling gap GC1 equivalent width, to strengthen between the first feed-in branch 540 and third feed-in branch 560
Coupling effect.Under this design, radiation efficiency of the antenna structure of mobile device 500 in first band FB1 can be mentioned further
It rises.Remaining feature of the mobile device 500 of Fig. 5 is all similar with the mobile device 100 of Figure 1A, Figure 1B, so two embodiments
Reach similar operating effect.
Fig. 6 shows the top view of mobile device 600 described in an embodiment according to the present invention.Fig. 6 is similar with Fig. 5.In Fig. 6
Embodiment in, a grounded metal portion 680 of mobile device 600 is moved more towards the direction close to the second feed-in branch 550, is made
It is least partially overlapped to obtain grounded metal portion 680 110 upright projection and slot 120 in metal back cover.Grounded metal portion 680
Movement can reduce the equivalent width of the second coupling gap GC2 between the second feed-in branch 550 and grounded metal portion 680, with micro-
Adjust the impedance matching of the second feed-in branch 550 and grounded metal portion 680.Under this design, the antenna structure of mobile device 600 exists
Radiation efficiency in second band FB2 can be promoted further.Remaining feature of the mobile device 600 of Fig. 6 all with the mobile dress of Fig. 5
It is similar to set 500, so two embodiments may achieve similar operating effect.
The present invention proposes a kind of novel antenna structure comprising a slot, when this antenna structure is applied to have a gold medal
When belonging to the mobile device of back-cover, since metal back cover can be considered an extension of antenna structure, therefore effectively metal can be avoided to carry on the back
Lid has a negative impact to the communication quality of mobile device.Separately it is noted that the present invention can open on being not used in metal back cover
In the case where digging any antenna windows (Antenna Window), the design of mobile device is further improved.Compared to biography
System design, the present invention at least get both small size, broadband, promoted low-and high-frequency antenna efficiency, increase device stability, and beautification
The advantage of device external form, therefore it is well suited for being applied in various various mobile communications devices.
It is worth noting that, it is limit of the invention that above-described component size, component shape and frequency range are all non-
Condition processed.Antenna designers can need to adjust these setting values according to different.Mobile device and antenna structure of the invention is simultaneously
It is not limited only to the illustrated state of Figure 1A-Fig. 6.The present invention can only include any one or more embodiments of Figure 1A-Fig. 6
One or more any features.In other words, and the feature of not all diagram must be implemented on mobile device and day of the invention simultaneously
In cable architecture.
Ordinal number in this description and in the claims, such as " first ", " second ", " third " etc., each other it
Between there is no precedence relationships sequentially, be only used for mark and distinguish two different elements with same name.
Though the present invention is disclosed as above with preferred embodiment, however its range for being not intended to limit the invention, any affiliated
The those of ordinary skill in field should can do a little change and profit without departing from the spirit and scope of the present invention
Decorations, therefore protection scope of the present invention should regard subject to appended claims institute defender.
Claims (17)
1. a kind of mobile device, the mobile device include:
One metal back cover, the metal back cover have a slot；
One grounded metal portion, the grounded metal portion are coupled to the metal back cover；
One feed-in irradiation unit, the feed-in irradiation unit have a load point, and wherein the feed-in irradiation unit includes:
One first feed-in branch, wherein one end of the first feed-in branch is coupled to the load point, which has
One first polygon, which at least has a long axis and a short axle, and the long axis of first polygon is along one
Make to extend in one direction；
One second feed-in branch, wherein one end of the second feed-in branch is coupled to the load point, which has
One second polygon, second polygon at least have a long axis and a short axle, and the long axis of second polygon is along one second
Direction is made to extend, and the second direction is opposite with the first direction；And
One third feed-in branch, wherein one end of the third feed-in branch is coupled to the load point, which has
One third polygon, the third polygon at least have a long axis and a short axle, and the long axis of the third polygon along this
Make to extend in one direction；And
One medium substrate, the medium substrate is adjacent to the metal back cover, and wherein the grounded metal portion and the feed-in irradiation unit are all set
It is placed on the medium substrate；
Wherein the upright projection of the feed-in irradiation unit in the metal back cover and the slot are least partially overlapped；
Wherein an antenna structure is collectively formed in the feed-in irradiation unit and the slot of the metal back cover.
2. mobile device as described in claim 1, wherein for a silent slot and a rectangle is presented in the slot, and the slot
One long axis should with the long axis of the first feed-in branch, the long axis of the second feed-in branch and the third feed-in branch
Long axis is all parallel to each other.
3. mobile device as described in claim 1, wherein the first feed-in branch, the second feed-in branch and the third
The other end of each of feed-in branch is all respectively an open end.
4. mobile device as described in claim 1, wherein a rectangle is presented in first polygon.
5. mobile device as described in claim 1, wherein a rectangle or a L-shaped is presented in second polygon.
6. mobile device as described in claim 1, wherein a rectangle, a L-shaped or a U-shaped is presented in the third polygon
Shape.
7. mobile device as described in claim 1, wherein the grounded metal portion is a ground connection copper foil, and by the medium substrate
It extends in the metal back cover.
8. mobile device as described in claim 1 wherein forms one between the first feed-in branch and the third feed-in branch
First coupling gap, and the width of first coupling gap is less than or equal to the width of the slot.
9. mobile device as described in claim 1 wherein forms one the between the second feed-in branch and the grounded metal portion
Two coupling gaps, and the width of second coupling gap is less than or equal to the width of the slot.
It, should 10. mobile device as described in claim 1, wherein the antenna structure covers a first band and a second band
First band between 2400MHz between 2500MHz, and the second band between 5150MHz between 5875MHz.
11. mobile device as claimed in claim 10, wherein the length of the slot is equal to the centre frequency of the first band
0.5 times of wavelength.
12. mobile device as claimed in claim 10, wherein the length of the first feed-in branch is equal in the first band
0.25 times of wavelength of frequency of heart.
13. mobile device as claimed in claim 10, wherein the first feed-in branch and the slot of the metal back cover excite
Generate the first band.
14. mobile device as claimed in claim 10, wherein the length of the second feed-in branch is equal in the second band
0.25 times of wavelength of frequency of heart.
15. mobile device as claimed in claim 10, wherein the second feed-in branch excitation generates the second band.
16. mobile device as claimed in claim 10, wherein the length of the third feed-in branch is in the first band
0.125 times of frequency of heart is between 0.25 times of wavelength.
17. mobile device as claimed in claim 10, wherein the third feed-in branch for increase the first band and this
The radiation efficiency and bandwidth of operation of two frequency bands.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201762534642P | 2017-07-19 | 2017-07-19 | |
| US62/534,642 | 2017-07-19 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311910A (en) * | 2019-07-29 | 2021-02-02 | 宏碁股份有限公司 | Mobile device |
| CN113140889A (en) * | 2020-01-20 | 2021-07-20 | 启碁科技股份有限公司 | Mobile device |
| CN113300095A (en) * | 2020-02-21 | 2021-08-24 | 启碁科技股份有限公司 | Antenna structure |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI708427B (en) * | 2019-03-15 | 2020-10-21 | 廣達電腦股份有限公司 | Mobile device |
| TWI715316B (en) * | 2019-11-28 | 2021-01-01 | 廣達電腦股份有限公司 | Antenna structure |
| TWI731742B (en) * | 2020-07-10 | 2021-06-21 | 宏碁股份有限公司 | Mobile device |
| TWI760095B (en) * | 2021-02-05 | 2022-04-01 | 啟碁科技股份有限公司 | Antenna structure and mobile device including the same |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008021Y (en) * | 2007-01-23 | 2008-01-16 | 富港电子（东莞）有限公司 | Flat antenna |
| CN102013567A (en) * | 2010-12-01 | 2011-04-13 | 惠州Tcl移动通信有限公司 | Built-in antenna with five frequency bands and Bluetooth and mobile communication terminal of antenna |
| TW201143205A (en) * | 2010-05-28 | 2011-12-01 | Yageo Corp | Mobile communication device antenna |
| CN102593584A (en) * | 2011-01-12 | 2012-07-18 | 联发科技股份有限公司 | Meander slot antenna structure and antenna module utilizing the same |
| EP2584647A2 (en) * | 2011-10-20 | 2013-04-24 | ACER Incorporated | Communication device and antenna structure thereof |
| TW201427171A (en) * | 2012-12-22 | 2014-07-01 | Acer Inc | Mobile device |
| CN103904417A (en) * | 2012-12-27 | 2014-07-02 | 宏达国际电子股份有限公司 | Mobile device |
| CN104425880A (en) * | 2013-08-19 | 2015-03-18 | 宏碁股份有限公司 | Mobile device |
| TW201703350A (en) * | 2015-07-03 | 2017-01-16 | 宏碁股份有限公司 | Mobile device |
| TW201705610A (en) * | 2015-07-31 | 2017-02-01 | 宏碁股份有限公司 | Mobile communication device |
| CN206076499U (en) * | 2016-01-14 | 2017-04-05 | 启碁科技股份有限公司 | Antenna structure |
-
2018
- 2018-02-26 TW TW107106337A patent/TWI659565B/en active
- 2018-03-21 CN CN201810234411.5A patent/CN109286077B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008021Y (en) * | 2007-01-23 | 2008-01-16 | 富港电子（东莞）有限公司 | Flat antenna |
| TW201143205A (en) * | 2010-05-28 | 2011-12-01 | Yageo Corp | Mobile communication device antenna |
| CN102013567A (en) * | 2010-12-01 | 2011-04-13 | 惠州Tcl移动通信有限公司 | Built-in antenna with five frequency bands and Bluetooth and mobile communication terminal of antenna |
| CN102593584A (en) * | 2011-01-12 | 2012-07-18 | 联发科技股份有限公司 | Meander slot antenna structure and antenna module utilizing the same |
| EP2584647A2 (en) * | 2011-10-20 | 2013-04-24 | ACER Incorporated | Communication device and antenna structure thereof |
| TW201427171A (en) * | 2012-12-22 | 2014-07-01 | Acer Inc | Mobile device |
| CN103904417A (en) * | 2012-12-27 | 2014-07-02 | 宏达国际电子股份有限公司 | Mobile device |
| CN104425880A (en) * | 2013-08-19 | 2015-03-18 | 宏碁股份有限公司 | Mobile device |
| TW201703350A (en) * | 2015-07-03 | 2017-01-16 | 宏碁股份有限公司 | Mobile device |
| TW201705610A (en) * | 2015-07-31 | 2017-02-01 | 宏碁股份有限公司 | Mobile communication device |
| CN206076499U (en) * | 2016-01-14 | 2017-04-05 | 启碁科技股份有限公司 | Antenna structure |
Non-Patent Citations (1)
| Title |
|---|
| KIN-LU WONG: ""Triple-Wideband Open-Slot Antenna for the LTE Metal-Framed Tablet device"", 《 IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112311910A (en) * | 2019-07-29 | 2021-02-02 | 宏碁股份有限公司 | Mobile device |
| CN113140889A (en) * | 2020-01-20 | 2021-07-20 | 启碁科技股份有限公司 | Mobile device |
| CN113300095A (en) * | 2020-02-21 | 2021-08-24 | 启碁科技股份有限公司 | Antenna structure |
| CN113300095B (en) * | 2020-02-21 | 2024-01-30 | 启碁科技股份有限公司 | Antenna structure |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201909478A (en) | 2019-03-01 |
| TWI659565B (en) | 2019-05-11 |
| CN109286077B (en) | 2021-10-22 |
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