CN108075227A - Electronic device and antenna unit thereof - Google Patents
Electronic device and antenna unit thereof Download PDFInfo
- Publication number
- CN108075227A CN108075227A CN201710473941.0A CN201710473941A CN108075227A CN 108075227 A CN108075227 A CN 108075227A CN 201710473941 A CN201710473941 A CN 201710473941A CN 108075227 A CN108075227 A CN 108075227A
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- Prior art keywords
- face
- metal portion
- line
- rabbet joint
- antenna element
- Prior art date
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- 239000002184 metal Substances 0.000 claims abstract description 211
- 229910052751 metal Inorganic materials 0.000 claims abstract description 211
- 239000011469 building brick Substances 0.000 claims description 8
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 9
- 238000002955 isolation Methods 0.000 description 7
- 241000237983 Trochidae Species 0.000 description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 230000012447 hatching Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 101000713585 Homo sapiens Tubulin beta-4A chain Proteins 0.000 description 1
- 240000001439 Opuntia Species 0.000 description 1
- 102100036788 Tubulin beta-4A chain Human genes 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/42—Housings not intimately mechanically associated with radiating elements, e.g. radome
-
- 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
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
Landscapes
- Support Of Aerials (AREA)
- Waveguide Aerials (AREA)
- Details Of Aerials (AREA)
Abstract
The invention discloses an electronic device and an antenna unit thereof. The electronic device includes a main body and an antenna unit. The main body is provided with an accommodating space. The antenna unit is arranged in the accommodating space and comprises a dielectric piece and three metal parts. The dielectric member includes a first face vertically adjacent to the other two faces, a second face opposite to the third face to form a resonant cavity. The first metal part is arranged on the first surface and is provided with a first slot and a feed-in end for transmitting and receiving signals. The second metal part is arranged on the second surface and provided with a second slot between the second metal part and the first metal part. The third metal part is arranged on the third surface, is connected with part of the first metal part and is provided with a third slot between the third metal part and the first metal part. The second and third metal parts are respectively in electrical contact with the main body to be grounded. The signal is fed into the three metal parts through the feed-in end and resonates with the resonant cavity to generate two antenna resonant frequency bands. The electronic device and the antenna unit thereof disclosed by the invention can still keep good antenna performance under the structure of the all-metal shell.
Description
Technical field
This disclosure relates to a kind of electronic device, the electronic device of more particularly to a kind of resonant cavity antenna with double frequency and its
Antenna element.
Background technology
Electronic device now, such as the products such as laptop, tablet computer, for beautiful factor, frequently with metal
The housing design of material.However, the electronic device of all-metal fuselage makes the effect of its internal antenna because being limited be subject to metal shell
Rate and radiation pattern have been difficult to good performance, cause signal transmission quality impacted.Therefore, how all-metal fuselage electricity
The antenna that design possesses good antenna efficiency in sub-device belongs to important research and development subject under discussion in fact.
It should be noted that information is only used for strengthening the reason to the background of the disclosure disclosed in above-mentioned background section
Solution, therefore can include not forming the information to the prior art known to persons of ordinary skill in the art.
The content of the invention
Originally in order to promote the antenna efficiency of the internal antenna of the electronic product of metal material fuselage and signal transmitting and receiving quality,
A kind of electronic device is proposed in the technical embodiment of the present invention.Electronic device includes main body and antenna element.Main body has
Accommodating space, and antenna element is arranged in this accommodating space.Antenna element includes dielectric piece, the first metal portion, the second metal
Portion and the 3rd metal portion.Dielectric piece includes the first face, the second face and the 3rd face, wherein the first face is vertically adjacent to the second face and the 3rd
Face, the second face is located at opposition both sides with the 3rd face, to form a resonant cavity.First metal portion is arranged on the first face, and is had
There are first line of rabbet joint and a feed side, feed side is receiving signal.Second metal portion is arranged on the second face, and with the first metal portion
Between have second line of rabbet joint.3rd metal portion is arranged on the 3rd face, is connected with the first metal portion of part.3rd metal portion and the
There is the 3rd line of rabbet joint between one metal portion.Second metal portion and the 3rd metal portion are in electrical contact with ground connection with main body respectively.Signal
First metal portion, the second metal portion and the 3rd metal portion are fed by feed side and generate first antenna with resonance cavity resonance
Resonance band and the second antenna resonance frequency range.
In addition, propose a kind of antenna element in another technical embodiment of the present invention.Antenna element include dielectric piece,
First metal portion, the second metal portion and the 3rd metal portion.Dielectric piece includes the first face, the second face and the 3rd face, wherein the first face
Vertically adjacent to the second face and the 3rd face, and the second face is located at the both sides of opposition with the 3rd face, to form a resonant cavity.First gold medal
Category portion is arranged on the first face, and with first line of rabbet joint and feed side, and feed side is receiving signal.Second metal portion is arranged at
It on second face and is grounded, and there is second line of rabbet joint between the first metal portion.3rd metal portion is arranged on the 3rd face and is grounded,
And be connected with the first metal portion of part, there is the 3rd line of rabbet joint between the 3rd metal portion and the first metal portion.Signal passes through feed side
Be fed into the first metal portion, the second metal portion and the 3rd metal portion and with resonance cavity resonance generate first antenna resonance band and
Second antenna resonance frequency range.
Technology disclosed by the invention, even if electronic device uses all-metal fuselage, suffered by internal antenna element
The influence of metal fuselage can be greatly decreased, and antenna efficiency and signal transmitting and receiving quality can still have good performance.
Description of the drawings
Figure 1A is the electronic device schematic diagram of one embodiment of the invention；
Figure 1B is the electronic device diagrammatic cross-section of one embodiment of the invention；
Fig. 2A is the antenna element schematic diagram of one embodiment of the invention；
Fig. 2 B are the six face expanded view of antenna element of one embodiment of the invention；
Fig. 3 A are the antenna element schematic diagram of one embodiment of the invention；
Fig. 3 B are the six face expanded view of antenna element of one embodiment of the invention；
Fig. 4 A are the antenna element schematic diagram of one embodiment of the invention；
Fig. 4 B are the six face expanded view of antenna element of one embodiment of the invention；
Fig. 5 A are the relational graph of the aerial voltage standing wave versus frequency of the antenna element of one embodiment of the invention；
Fig. 5 B are relational graph of the antenna efficiency to frequency of the antenna element of one embodiment of the invention；
Fig. 6 A are relational graph of the isolation between antennas to frequency of the electronic device of one embodiment of the invention；
Fig. 6 B are relational graph of the antenna efficiency to frequency of the electronic device of one embodiment of the invention；
Fig. 7 is the electronic device diagrammatic cross-section of one embodiment of the invention.
Specific embodiment
Special embodiment below cooperation attached drawing elaborates, but described specific embodiment is only used to explain this hair
It is bright, it is not used to limit the present invention, and the description of structure operation is non-to limit the order of its execution, it is any by element again group
The structure of conjunction, the produced device with impartial technique effect, is all the scope that the disclosure of invention is covered.
In addition, attached drawing is only used to schematically be illustrated, and drawn not according to its full-size(d).And on this
" electric connection " or " electric property coupling " used in text, can refer to two or multiple element it is physically in electrical contact or indirectly electrically
Contact.
In word (terms) used in full piece specification and claims, in addition to having and especially indicating, usually have every
A word using in this area, in content disclosed herein with the usual meaning in special content.It is some describing this hair
Bright word by it is lower or the other places of this specification discuss, to provide those skilled in the art in description for the present invention
Additional guiding.
A is please referred to Fig.1, Figure 1A is the schematic diagram of the electronic device 100 of one embodiment of the invention.Electronic device 100 can
For example, laptop, tablet computer or any electronic product for carrying antenna transceiving device, and in this example, with electronics
Device 100 be laptop exemplified by explain.In figure 1A, the length of electronic device 100 × width x thickness size is, for example, 280mm
× 200mm × 13mm has the display unit 110 being mutually pivotally connected and main body 120.Display unit 110 is display screen, to
Image interface is presented.Main body 120 includes top shell 130, bottom case 140 and accommodating space 142.Accommodating space 142 be located at top shell 130 with
Between bottom case 140.Top shell 130 can be used to installation input equipment spare part such as keyboard.Wherein the top shell 130 of main body 120 with
Bottom case 140 is electrically connected to be grounded with system ground respectively.
The overall thickness of main body 120 is, for example, 7.5mm.Accommodating space 142 can set such as mainboard, hard disk, speaker and/or day
The elements such as line.Wherein, antenna is arranged on accommodating space 142 adjacent to main body 120 and the articulated section of display unit 110, in Figure 1A
Two positions 150 in left and right.It is to be understood that position 150 is the reserved installation site of antenna element, can be multiple independent spaces,
Or can be the space of single connection.And the quantity of position 150 and antenna element can be designed according to actual demand, disclosure text
Part is illustrated only by taking 150 and two antenna element of two positions as an example with simplifying, not limiting the present invention.
Also referring to Figure 1B, Figure 1B is the diagrammatic cross-section of the electronic device 100 of one embodiment of the invention.It is specific and
Speech, Figure 1B show the electronic device 100 of Figure 1A in the cross section in hatching A-A ' directions.It can be seen that in Figure 1B, electronic device 100
Also comprising fuselage edge 144, fuselage edge 144 is arranged at main body 120 and 110 articulated section of display unit.It can at fuselage edge 144
Dig with the through hole that accommodating space 142 connects as the outlet of internal antenna unit radiation path, the sound outlet hole of audio device and/
Or thermovent of electronic device 100 etc..
In addition, antenna element 160 is arranged at position 150, and passes through conventional conductive cloth and make electricity with top shell 130 or bottom case 140
Property connection.144 distance of fuselage edge, the one spacing g1 of antenna element 160 and electronic device 100, spacing g1 is, for example, less than 3.5mm.
It should be noted that it may be provided with identical antenna element 160 or different antenna lists in each position 150 of electronic device 100
Member all sets identical antenna element 160 in this embodiment, in two positions 150, wherein an antenna element 160 is as main
Antenna, and another antenna element 160 is then used as auxiliary antenna.
Detailed construction on antenna element 160 refers to Fig. 2A and Fig. 2 B.Fig. 2A is the day of one embodiment of the invention
The schematic diagram of line unit 160.Specifically, Fig. 2A is the antenna element 160 with right side in Figure 1A from the direction of hatching B-B '
The schematic diagram of viewing.The length × width × height size of antenna element 160 is, for example, 45mm × 14.5mm × 5mm, with dielectric piece
162.Dielectric piece 162 is cube, and with the first face P1, the second face P2, the 3rd face P3, fourth face P4, the 5th face P5 and the
Six faces such as six face P6.First face P1 and fourth face P4 is opposite and is respectively perpendicular adjacent second face P2, the 3rd face P3, the 5th face P5
With the 6th face P6.Second face P2 is opposite with the 3rd face P3, and the 5th face P5 is opposite with the 6th face P6.In this way, dielectric piece 162 can shape
Into a resonant cavity.
Fig. 2 B are six face expanded views of the antenna element 160 of Fig. 2A embodiments.In Fig. 2 B, the dielectric piece of antenna element 160
162 include the first metal portion M1, the second metal portion M2, the 3rd metal portion M3, the 4th metal portion M4 and fifth metal portion M5.First
Metal portion M1, the second metal portion M2, the 3rd metal portion M3, the 4th metal portion M4 and fifth metal portion M5 are, for example, the conductions such as copper foil
Material.In electronic device 100, the first metal portion M1 facing externals of antenna element 160 are set, i.e., towards fuselage edge 144
Place.It should be understood that in this embodiment, the tool of electronic device 100 is there are two antenna element 160, wherein two antenna elements 160 are each
From the first metal portion M1 all towards at fuselage edge 144.Specifically, two antenna elements 160 of electronic device 100 for example with
The mode of mirror symmetry is furnished.
First metal portion M1 is arranged on the first face P1.First metal portion M1 sizes are, for example, 32mm × 4mm.First metal
Portion M1 is loop shape, and with the first slit grooves S 1.For first slit grooves S 1 between point D1, D2, width w1 is, for example, 2mm, long
It is, for example, 25mm to spend w2.In addition, there is feed side F1, feed side F1 to use for the first metal portion M1 first halves about middle in figure
It is coupled with connecting the signal anode of coaxial transmission line (not shown) with wireless signal generator, and thus carries out aerial signal
Transmitting-receiving.
Second metal portion M2 is arranged on the second face P2 and is made with the top shell 130 of main body 120 by aforementioned conventional conductive fabric
It is in electrical contact to be further grounded.Second metal portion M2 is substantially paved with the second face P2.Second metal portion M2 and the first metal portion
There is the second slit grooves S 2, and the second slit grooves S 2 is located at the first face P1 between M1.Second slit grooves S 2 is wide between point D3, D4
It is, for example, 1mm to spend w3, and length w4 is, for example, 32mm.
3rd metal portion M3 is arranged on the 3rd face P3 and is made with the bottom case 140 of main body 120 by aforementioned conventional conductive fabric
It is in electrical contact to be further grounded.3rd metal portion M3 is substantially paved with the 3rd face P3.3rd metal portion M3 and partial first
Metal portion M1 is connected.In figure the position of the 3rd metal portion M3 upper middles be equipped with ground terminal G1, ground terminal G1 to it is foregoing
The negative terminal of coaxial transmission line is connected the signal negative terminal and system ground for being coupled to wireless signal generator.In addition, the 3rd
There is the 3rd slit grooves S 3, the 3rd slit grooves S 3 is located at the 3rd face P3 between metal portion M3 and the first metal portion M1.3rd slit grooves S 3 is situated between
Between point D5, D6, width w5 is, for example, 1mm, and length w6 is, for example, 12mm.
4th metal portion M4 is arranged on fourth face P4, and fourth face P4 is expired on substantive upper berth.4th metal portion M4 is in Fig. 2A
Spatial relation figure in be connected with the second metal portion M2, the 3rd metal portion M3 and fifth metal portion M5.Wherein the 4th metal portion
M4 and the first metal portion M1, the second metal portion M2 and the 3rd metal portion M3 surround out the 4th slit grooves S 4.4th slit grooves S 4 is located at the
P1 and the 6th face P6 on one side, and between point D3, D7, as shown in the figure.The width of wherein the 4th slit grooves S 4 is electronic device
100 thickness 5mm, length w7 are, for example, then 19.5mm.
Fifth metal portion M5 is arranged on the 5th face P5, and size is, for example, 7.5mm × 5mm.Fifth metal portion M5 is scheming
It is connected in the spatial relation figure of 2A with the second metal portion M2, the 3rd metal portion M3 and the 4th metal M4 portions, wherein fifth metal portion
M5 and the first metal portion M1, the second metal portion M2 and the 3rd metal portion M3 surround out the 5th slit grooves S 5.5th slit grooves S 5 is located at the
P1 and the 5th face P5 on one side, and between point D4, D8, as shown in the figure.The width of wherein the 5th slit grooves S 5 is electronic device
100 thickness 5mm, length w8 are, for example, then 8mm.
By being attached to the second metal portion M2 and the 3rd metal portion M3 on 162 surface of dielectric piece, resonant cavity can be formed
Structure, i.e., dielectric piece 162 is essentially as the resonant cavity of signal.Therefore, signal is fed into the first metal by feed side F1
Portion M1, the second metal portion M2 and the 3rd metal portion M3 simultaneously generate first antenna resonance band and the second antenna with resonance cavity resonance
The dual-band antenna resonance band of resonance band.And plus configuration and each metal of the 4th metal portion M4 and fifth metal portion M5
The capacitive coupling effect of first slit grooves S, 1 to the 5th slit grooves S 5 between portion can make antenna element 160 resonate out such as Wi-Fi
The second antenna resonance frequency range of the first antenna resonance band of 2.4GHz and such as Wi-Fi 5GHz.
Specifically, first antenna resonance band is by the second slit grooves S 2 of the first metal portion M1 and surrounding, the 3rd line of rabbet joint
S3, the 4th slit grooves S 4 and 5 coupled resonance of the 5th slit grooves S generate, and the second slit grooves S 2, the 3rd slit grooves S 3, the 4th slit grooves S 4 and the
The size (w3~w8) of five slit grooves Ss 5 is related to the frequency of first antenna resonance band and impedance matching.Therefore, by adjusting
Two slit grooves Ss 2, the 3rd slit grooves S 3, size/coupling amount of the 4th slit grooves S 4 and the 5th slit grooves S 5, can change Wi-Fi 2.4GHz's
Antenna performance.
And the second antenna resonance frequency range is the first metal portion M1 by being internally provided with the first slit grooves S 1, with slot antenna
The form coupled resonance of (slit antenna) generates, size (w1, w2) and the second antenna resonance frequency range of the first slit grooves S 1
Frequency and impedance matching are related.Therefore, by adjusting size/coupling amount of the first slit grooves S 1, the day of Wi-Fi 5GHz can be changed
Line characteristic.In addition, antenna element 160 be for example by the first metal portion M1 towards fuselage edge 144 at thermovent or sound
The sound outlet hole of device is rung to radiate, to carry out wireless communication the transmitting of signal and reception.
In another embodiment of the invention, the antenna element 160 in electronic device 100 may also be combined with zero group of other electronics
Part to save the inner space of electronic device 100, makes overall appearance can further reducing.Refer to this hair shown in Fig. 3 A
The schematic diagram of the antenna element 360 of a bright embodiment.Antenna element 360 has dielectric piece 362, and shows L1 points of center line greatly
For the first half portion H1 and the second half portion H2.Second half portion H2 is roughly the same with antenna element 160, that is, the first metal portion M1 to
Five metal portion M5 are all attached at the surface of the second half portion H2.Therefore, antenna element 360 can be considered that antenna element 160 further prolongs
Stretch out the first half portion H1.On the second half portion H2 detailed construction see aforementioned antenna unit 160 explanation.
In Fig. 3 A, there is the first half portion H1 grooving T1, grooving T1 can be used to installation electronic building brick such as speaker.It is real herein
It applies in example, the 6th metal portion M6 is equipped in grooving T1.Also referring to the antenna of one embodiment of the invention shown in Fig. 3 B
Six face expanded views of unit 360.The wherein figure of the second half portion H2 (the first metal portion M1 to fifth metal portion M5) and Fig. 2 B phases
Together.It should be noted that the 3rd metal portion M3 of the second half portion H2 extends to the first half portion H1 in the 3rd face P3, and the second half portion H2
The 4th metal portion M4 extend to the first half portion H1 in fourth face P4, as shown in the figure.In addition, the 6th face P6 of antenna element 360
Further include third time metal portion M31.Third time metal portion M31 in the spatial relation figure of Fig. 3 A respectively with the 3rd metal portion M3,
4th metal portion M4 and the 6th metal portion M6 are connected.
6th metal portion M6 is between point D9, D10, and the 4th gold medal in the spatial relation figure of Fig. 3 A with fourth face P4
Category portion M4 be electrically connected and it is electrical by the third time metal portion M31 and the 3rd metal portion M3 of the 3rd face P3 of the 6th face P6
Connection.In general, electronic building brick usually has hardware or material, and by being laid with the 6th metal portion on the inside of grooving T1
M6 can reduce influence of the electronic building brick being installed in grooving T1 to antenna element 360, make the antenna efficiency of antenna element 360
It is promoted.
In another embodiment of the present invention, the 6th metal portion M6 can not be laid with inside the grooving T1 of antenna element 360.Please
Refering to the schematic diagram of the antenna element 460 of one embodiment of the invention shown in Fig. 4 A.Antenna element 460 with antenna element 360,
With dielectric piece 462, and it is the first half portion H1 and the second half portion H2 to show L1 points of center line greatly, and the second half portion H2 and antenna list
Member 160 is roughly the same.In addition, in Fig. 4 A, the first half portion H1 also has grooving T1.In the embodiment of antenna element 460, with day
The difference of line unit 360 is in not being laid with the 6th metal portion M6 in grooving T1, but spread in the first half portion H1 outer surfaces
If the 7th metal portion M7.
Fig. 4 B are six face expanded views of the antenna element 460 of one embodiment of the invention.The wherein figure of the second half portion H2
(i.e. the first metal portion M1 to fifth metal portion M5) is identical with Fig. 2 B.And the 3rd metal portion M3 of the second half portion H2 extends to first
For half portion H1 to be paved with the 3rd face P3, the 4th metal portion M4 of the second half portion H2 extends to the first half portion H1 to be paved with fourth face P4,
As shown in the figure.
7th metal portion M7 is arranged on the first face P1 and the 6th face P6 and positioned at the first half portion H1.7th metal portion M7 is situated between
Between point D11, D12.In the spatial relation figure of Fig. 4 A, the 7th metal portion M7 and the 3rd metal portion M3 and the 4th metal portion M4
It is electrically connected.By being laid with the 7th metal portion M7 on the first face P1 and the 6th face P6, so that grooving T1 is centered around the 3rd gold medal
Among category portion M3, the 4th metal portion M4 and the 7th metal portion M7, the electronic building brick being installed in grooving T1 can be reduced to antenna list
The influence of member 460, promotes the antenna efficiency of antenna element 460.
Fig. 5 A are the aerial voltage standing-wave ratio (VSWR) of the antenna element 160,360,460 of one embodiment of the invention to frequency
The relational graph of rate.Wherein, the ordinate unit of Fig. 5 A is VSWR, and abscissa unit is frequency (MHz).Curve in Fig. 5 A
510A, 520A, 530A are respectively sequentially the relation curve of the aerial voltage standing wave versus frequency of antenna element 160,360,460.
By can be seen that in Fig. 5 A, 160,360,460 VSWR at such as Wi-Fi 2.4GHz and Wi-Fi5GHz of antenna element levels off to
1, show good impedance matching.
Then, Fig. 5 B are pass of the antenna efficiency to frequency of the antenna element 160,360,460 of one embodiment of the invention
System's figure.Specifically, Fig. 5 A are shown when antenna element 160,360,460 is set with the electronic building brick lie adjacent such as speaker
For antenna efficiency to the relational graph of frequency, wherein electronic building brick is to be disposed in the grooving T1 of antenna element 360,460.Fig. 5 A's
Ordinate unit is antenna efficiency (dB), and abscissa unit is frequency (MHz).Curve 510B, 520B, 530B be sequentially in Fig. 5 B
Respectively the antenna efficiency of antenna element 160,360,460 is to the relation curve of frequency.By Fig. 5 B it is to be understood that antenna element
360th, 460 spread copper on the inside or outside of respective grooving T1, etc. antenna efficiencies better than being not provided with grooving T1 and spread copper (the 6th metal
Portion M6 or the 7th metal portion M7) antenna element 160, antenna efficiency is made to be promoted between about -4dB~-5.5dB.
Fig. 6 A be one embodiment of the invention electronic device 100 in two antenna elements 360 isolation (Isolation)
To the relational graph of frequency.In this example, the distance between two positions 150 of electronic device 100 about 60mm, that is, two antenna lists
360 about 60mm apart of member.The ordinate unit of Fig. 6 A be isolation (dB), and abscissa unit be frequency (MHz), curve
The isolation of 610 display both sides antenna elements 360 to each other.From in figure, the isolation of both sides antenna element 360 no matter
Low frequency or high frequency treatment all less than -10dB, have good isolation.
Fig. 6 B are the antenna efficiency of the both sides antenna element 360 of the electronic device 100 of one embodiment of the invention to frequency
Relational graph.Wherein the ordinate unit of Fig. 6 B is antenna efficiency (dB), and abscissa unit is frequency (MHz), and curve
610B, 620B represent the antenna efficiency mapping of left hand side antenna unit 360 and right side antenna element 360 respectively.In present disclosure
Antenna element 360 be applied to electronic device 100 in the case of, two antenna elements 360 are in the day of such as Wi-Fi2.4GHz
Line efficiency is -4dB~-5.5dB, and the antenna efficiency in such as Wi-Fi 5GHz is -4dB~-7.5dB.
And as previously mentioned, when electronic device 100 be equipped with two antenna elements when, the first metal portion M1 all faces of each antenna element
It at fuselage edge 144, and furnishes in a manner of mirror symmetry, the electronic device of one embodiment of the invention as shown in Figure 7
100 diagrammatic cross-section.Specifically, Fig. 7 shows the electronic device 100 of Figure 1A in the cross section in hatching B-B ' directions.Its
In, this embodiment is explained by taking antenna element 460 as an example.Thus figure can be seen that, the first metal portion M1 of two antenna elements 460
All towards equidirectional (towards fuselage edge 144), and two antenna elements 460 be in electronic device 100 using center line L2 in
The heart and in left and right mirror symmetry.
Mentioned above, electronic device and its antenna element disclosed by the embodiments of the present invention are realized in full metal jacket framework
Under can still possess the technology of good antenna performance, and being wholely set by the part spare part of antenna element and electronic device,
The occupancy of electronic device inner space can be reduced, makes the utilization of electronic device inner space more elastic, can also make electronic device
Apparent volume can further downsizing.
Although the embodiment of the present invention is disclosed as above, however, it is not to limit the invention, any skilled person,
Without departing from the spirit and scope of the invention, when can do a little variation and retouching, therefore protection scope of the present invention when with
Subject to claims define.
Claims (14)
1. a kind of electronic device, which is characterized in that include：
Main body has accommodating space；And
Antenna element is arranged in the accommodating space, and the antenna element includes：
Dielectric piece, comprising the first face, the second face and the 3rd face, wherein first face is vertically adjacent to second face and described
Three faces, second face is located at the both sides of opposition with the 3rd face, to form resonant cavity；
First metal portion, is arranged at first face, and with first line of rabbet joint and feed side, and the feed side is receiving letter
Number；
Second metal portion is arranged at second face, has the second slot between second metal portion and first metal portion
Seam；And
3rd metal portion is arranged at the 3rd face, and is connected with part first metal portion, the 3rd metal portion and institute
Stating has the 3rd line of rabbet joint between the first metal portion；
Wherein described second metal portion and the 3rd metal portion are in electrical contact with ground connection with the main body respectively, and the signal leads to
Cross the feed side be fed into first metal portion, second metal portion and the 3rd metal portion and with the resonant cavity
Resonance body generates first antenna resonance band and the second antenna resonance frequency range.
2. electronic device according to claim 1, which is characterized in that the dielectric piece also includes fourth face and the 5th face,
The fourth face is vertically adjacent to second face, the 3rd face and the 5th face, the fourth face and first face position
In the both sides of opposition, the 5th face vertically adjacent to first face, second face, the 3rd face and the fourth face,
And the antenna element also includes：
4th metal portion is arranged on the fourth face, and is connected with second metal portion and the 3rd metal portion,
Described in the 4th metal portion and first metal portion, second metal portion and the 3rd metal portion surround out the 4th slot
Seam；And
Fifth metal portion is arranged on the 5th face, and with second metal portion, the 3rd metal portion and the described 4th
Metal portion is connected, wherein the fifth metal portion and first metal portion, second metal portion and the 3rd metal portion
Surround out the 5th line of rabbet joint.
3. electronic device according to claim 2, which is characterized in that second line of rabbet joint, the 3rd line of rabbet joint, described
The frequency dependence of the size of four lines of rabbet joint and the 5th line of rabbet joint and the first antenna resonance band, the size of first line of rabbet joint
With the frequency dependence of the second antenna resonance frequency range.
4. electronic device according to claim 2, which is characterized in that the dielectric piece is also comprising the 6th face, and the described 6th
Face is vertically adjacent to first face, second face, the 3rd face and the fourth face, the 6th face and the 5th face
Positioned at the both sides of opposition, second line of rabbet joint is located on first face, and the 4th line of rabbet joint is located at first face and described
On 6th face, and the 5th line of rabbet joint is located on first face and the 5th face.
5. electronic device according to claim 2, which is characterized in that the dielectric piece has the first half portion and the second half
Portion, first metal portion, second metal portion, the 3rd metal portion, the 4th metal portion and the fifth metal
Portion is attached at the surface of second half portion, and first half portion has grooving, to install electronic building brick.
6. electronic device according to claim 5, which is characterized in that the antenna element also includes：
6th metal portion is arranged at the inside of the grooving, and electrically connects with the 3rd metal portion and the 4th metal portion
It connects.
7. electronic device according to claim 5, which is characterized in that the dielectric piece is also comprising the 6th face, and the described 6th
Face is vertically adjacent to first face, second face, the 3rd face and the fourth face, the 6th face and the 5th face
Positioned at the both sides of opposition, the antenna element also includes：
7th metal portion is arranged on first face and the 6th face and positioned at first half portion, and with the described 3rd
Metal portion and the 4th metal portion are electrically connected.
8. a kind of antenna element, which is characterized in that include：
Dielectric piece, comprising the first face, the second face and the 3rd face, wherein first face is vertically adjacent to second face and described
Three faces, and second face is located at the both sides of opposition with the 3rd face, to form resonant cavity；
First metal portion is arranged on first face, and with first line of rabbet joint and feed side, and the feed side is receiving letter
Number；
Second metal portion is arranged on second face and is grounded, and has second line of rabbet joint between first metal portion；With
And
3rd metal portion is arranged on the 3rd face and is grounded, and is connected with first metal portion, the 3rd metal portion
There is the 3rd line of rabbet joint between first metal portion；
Wherein described signal is fed into first metal portion, second metal portion and the 3rd gold medal by the feed side
Category portion simultaneously generates first antenna resonance band and the second antenna resonance frequency range with resonant cavity resonance.
9. antenna element according to claim 8, which is characterized in that the dielectric piece also includes fourth face and the 5th face,
The fourth face is vertically adjacent to second face, the 3rd face and the 5th face, the fourth face and first face position
In the both sides of opposition, the 5th face vertically adjacent to first face, second face, the 3rd face and the fourth face,
And the antenna element also includes：
4th metal portion is arranged on the fourth face, and is connected with second metal portion and the 3rd metal portion,
Described in the 4th metal portion and first metal portion, second metal portion and the 3rd metal portion surround out the 4th slot
Seam；And
Fifth metal portion is arranged on the 5th face, and with second metal portion, the 3rd metal portion and the described 4th
Metal portion is connected, wherein the fifth metal portion and first metal portion, second metal portion and the 3rd metal portion
Surround out the 5th line of rabbet joint.
10. antenna element according to claim 9, which is characterized in that second line of rabbet joint, the 3rd line of rabbet joint, described
The frequency dependence of the size of 4th line of rabbet joint and the 5th line of rabbet joint and the first antenna resonance band, first line of rabbet joint it is big
The small frequency dependence with the second antenna resonance frequency range.
11. antenna element according to claim 9, which is characterized in that the dielectric piece is also comprising the 6th face, and the described 6th
Face is vertically adjacent to first face, second face, the 3rd face and the fourth face, the 6th face and the 5th face
Positioned at the both sides of opposition, second line of rabbet joint is located on first face, and the 4th line of rabbet joint is located at first face and described
On 6th face, and the 5th line of rabbet joint is located on first face and the 5th face.
12. antenna element according to claim 9, which is characterized in that the dielectric piece has the first half portion and the second half
Portion, first metal portion, second metal portion, the 3rd metal portion, the 4th metal portion and the fifth metal
Portion is attached at the surface of second half portion, and first half portion has grooving, to install electronic building brick.
13. antenna element according to claim 12, which is characterized in that also include：
6th metal portion is arranged at the inside of the grooving, and electrically connects with the 3rd metal portion and the 4th metal portion
It connects.
14. antenna element according to claim 12, which is characterized in that the dielectric piece is also comprising the 6th face, and described the
Six faces are vertically adjacent to first face, second face, the 3rd face and the fourth face, the 6th face and the described 5th
Face is located at the both sides of opposition, and the antenna element also includes：
7th metal portion is arranged on first face and the 6th face and positioned at first half portion, and with the described 3rd
Metal portion and the 4th metal portion are electrically connected.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW105137307 | 2016-11-15 | ||
| TW105137307A TWI632732B (en) | 2016-11-15 | 2016-11-15 | Electronic device and antenna unit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108075227A true CN108075227A (en) | 2018-05-25 |
| CN108075227B CN108075227B (en) | 2020-02-07 |
Family
ID=62159136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710473941.0A Active CN108075227B (en) | 2016-11-15 | 2017-06-21 | Electronic device and antenna unit thereof |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108075227B (en) |
| TW (1) | TWI632732B (en) |
Citations (5)
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|---|---|---|---|---|
| US20130082895A1 (en) * | 2011-09-30 | 2013-04-04 | Boon W. Shiu | Antenna Structures with Molded and Coated Substrates |
| CN103682617A (en) * | 2012-09-10 | 2014-03-26 | 深圳富泰宏精密工业有限公司 | Wireless communication device |
| CN203589213U (en) * | 2013-05-21 | 2014-05-07 | 唯昱科技股份有限公司 | A double-frequency antenna |
| US20140354482A1 (en) * | 2013-05-29 | 2014-12-04 | Cirocomm Technology Corp. | Ceramic antenna |
| CN205282634U (en) * | 2015-12-03 | 2016-06-01 | 深圳市信维通信股份有限公司 | Back of body chamber slot antenna structure and electronic equipment |
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| US8174452B2 (en) * | 2008-09-25 | 2012-05-08 | Apple Inc. | Cavity antenna for wireless electronic devices |
| US8325094B2 (en) * | 2009-06-17 | 2012-12-04 | Apple Inc. | Dielectric window antennas for electronic devices |
| US8766858B2 (en) * | 2010-08-27 | 2014-07-01 | Apple Inc. | Antennas mounted under dielectric plates |
| KR20140082438A (en) * | 2012-12-24 | 2014-07-02 | 삼성전자주식회사 | Antenna, electronic apparatus use thereof and method for manufacturing of antenna |
| US9450289B2 (en) * | 2014-03-10 | 2016-09-20 | Apple Inc. | Electronic device with dual clutch barrel cavity antennas |
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2016
- 2016-11-15 TW TW105137307A patent/TWI632732B/en active
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130082895A1 (en) * | 2011-09-30 | 2013-04-04 | Boon W. Shiu | Antenna Structures with Molded and Coated Substrates |
| CN103682617A (en) * | 2012-09-10 | 2014-03-26 | 深圳富泰宏精密工业有限公司 | Wireless communication device |
| CN203589213U (en) * | 2013-05-21 | 2014-05-07 | 唯昱科技股份有限公司 | A double-frequency antenna |
| US20140354482A1 (en) * | 2013-05-29 | 2014-12-04 | Cirocomm Technology Corp. | Ceramic antenna |
| CN205282634U (en) * | 2015-12-03 | 2016-06-01 | 深圳市信维通信股份有限公司 | Back of body chamber slot antenna structure and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201820698A (en) | 2018-06-01 |
| TWI632732B (en) | 2018-08-11 |
| CN108075227B (en) | 2020-02-07 |
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