CN104753554B - Radio-frequency unit and radio communication device - Google Patents
Radio-frequency unit and radio communication device Download PDFInfo
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- CN104753554B CN104753554B CN201310737700.4A CN201310737700A CN104753554B CN 104753554 B CN104753554 B CN 104753554B CN 201310737700 A CN201310737700 A CN 201310737700A CN 104753554 B CN104753554 B CN 104753554B
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Abstract
A kind of radio-frequency unit and radio communication device.The radio-frequency unit is used for radio communication device, including：Antenna setting area；Grounding assembly；First and second antenna, is arranged in antenna setting area, is respectively intended to receive and dispatch first and second wireless signal；First antenna includes：Feed-in plate, with feeding portion；First radiant body, is coupled to feed-in plate, and is electrically connected at grounding assembly, for launching the first wireless signal；First signal feed-in component, is electrically connected at feeding portion, for the first wireless signal is sent into the first radiant body through feed-in plate, to launch the first wireless signal by the first radiant body；And metal support arm, it is electrically connected at grounding assembly；First and second antenna duplexer is located at grounding assembly between the two, and feed-in plate is located between metal support arm and the first radiant body, and metal support arm is used for guiding on reflected signal to the metal support arm of second wireless singal, to lift isolation between antennas.The present invention can increase antenna efficiency, it is ensured that the normal operation being wirelessly transferred.
Description
Technical field
The present invention relates to a kind of radio-frequency unit and radio communication device, espespecially one kind can lift isolation, with limited sky
It is interior to place multiple antennas, and maintain the radio-frequency unit and radio communication device of antenna performance and bandwidth.
Background technology
Electronic product with radio communication function, such as notebook computer, personal digital assistant（Personal
Digital Assistant）, wireless base station, mobile phone, intelligent electric meter（Smart Meter）, USB wireless network cards（USB
dongle）Deng being launched by antenna or receive radio wave, to transmit or exchange radio signal, and then access wireless network
Network.Therefore, in order to allow user can more easily access to wireless communication network, the bandwidth of ideal antenna should use up in tolerance band
Possibly increase, the reduction and size should then try one's best, to coordinate the trend of electronic product volume-diminished.In addition, with wireless
The continuous evolution of the communication technology, the antenna amount that electronic product is configured may increase.For example, setting in USB wireless network cards
In meter, in order to allow the user of related electronic products to use the different wireless communication system of same frequency band simultaneously（Such as
Bluetooth and WiFi）The different applications of execution, or the spectrum efficiency and transmission rate of lifting wireless communication system are logical to improve
Believe quality, USB wireless network cards need to utilize multiple（Or it is multigroup）Antenna synchronous transmitting/receiving wireless signal, is divided into many passages by space,
And then multiple antenna patterns illustrateds are provided.Due to using the problem of being interfered between multigroup antenna, antenna to be examined when also just turning into design
One of emphasis of worry.
In the design of wireless communications products, multigroup antenna is generally placed on the diagonal of wireless communications products respectively
Or on longest edge lie farthest away position, to reduce the interference between multigroup antenna as far as possible, and reach optimal complimentary antennas
Characteristic.However, when the overall dimensions of wireless communications products or the smaller region of wherein settable antenna, need to consider multigroup simultaneously
The layout of antenna, it is to avoid interfered between antenna, therefore increase many design difficulties.
In addition, with the technological progress of wireless communication system, broad-band antenna already the primary demand as communication system it
One.Common broad-band antenna, such as planar inverted-F antenna, though it can reach the purpose of transmitting-receiving multi-frequency radio signal, however, this kind of day
The radiation body length of line is oversize, it is impossible to be installed in the wireless communication system of miniaturization, and low frequency bandwidth is not enough（About
110MHz）, it is impossible to meet wide band communications system demand.
Therefore, how to be designed in the confined space it is multigroup meet the antenna of transmission demand, while take into account each beamwidth of antenna,
Efficiency and isolation, also just turn into one of target that industry is made great efforts.
It is thus desirable to provide a kind of radio-frequency unit and radio communication device meet the demand.
The content of the invention
Present invention generally provides a kind of radio-frequency unit and radio communication device for lifting isolation between antennas, with limited sky
It is interior to place multiple antennas, and maintain the beamwidth of antenna and efficiency.
The present invention discloses a kind of radio-frequency unit, and the radio-frequency unit is used for a radio communication device, and the radio-frequency unit is included：One
Antenna setting area；One grounding assembly, the grounding assembly is used for providing ground connection；One first antenna, the first antenna is arranged at the day
In line setting area, for receiving and dispatching one first wireless signal；And one second antenna, second antenna is arranged at the antenna setting area
It is interior, for receiving and dispatching a second wireless singal；The first antenna is included：One feed-in plate, the feed-in plate has a feeding portion；One first
Radiant body, first radiant body is coupled to the feed-in plate, and is electrically connected at the grounding assembly, for launching first wireless communication
Number；One first signal feed-in component, the first signal feed-in component is electrically connected at the feeding portion, for by first wireless communication
Number first radiant body is sent to through the feed-in plate, to launch first wireless signal by first radiant body；And a gold medal
Belong to support arm, the metal support arm is electrically connected at the grounding assembly；Wherein, the grounding assembly is located at the first antenna and this second day
Between line, the first antenna and second antenna duplexer grounding assembly, the feed-in plate are located at the metal support arm and first spoke
Between beam, the metal support arm is used for guiding on a reflected signal to metal support arm of the second wireless singal, is somebody's turn to do with being lifted
First antenna and the isolation of second antenna.
Invention additionally discloses a kind of radio communication device, the radio communication device is included：One system earth part, the system connects
Ground part is used for providing ground connection；One radio-frequency signal processing module, the radio-frequency signal processing module is used for handling multiple wireless signals；With
And a radio-frequency unit, the radio-frequency unit includes：One antenna setting area, the center of the antenna setting area sets the radiofrequency signal to handle
Module；One grounding assembly, the grounding assembly is electrically connected with the system earth part；One first antenna, the first antenna is arranged at this
In antenna setting area, for receiving and dispatching one first wireless signal of the plurality of wireless signal；And one second antenna, second antenna
It is arranged in the antenna setting area, for receiving and dispatching a second wireless singal of the plurality of wireless signal；The first antenna is included：One
Feed-in plate, the feed-in plate has a feeding portion；One first radiant body, first radiant body is coupled to the feed-in plate, and electrically connects
The grounding assembly is connected to, for launching first wireless signal；One first signal feed-in component, the first signal feed-in component electricity
Property is connected to the feeding portion, for first wireless signal is sent into first radiant body through the feed-in plate, with by this
One radiant body launches first wireless signal；And a metal support arm, the metal support arm is electrically connected at the grounding assembly；Its
In, the grounding assembly is located between the first antenna and second antenna, the first antenna and second antenna duplexer ground connection
Component, the feed-in plate is located between the metal support arm and first radiant body, and the metal support arm is used for guiding second wireless communication
Number a reflected signal to the metal support arm on, to lift the isolation of the first antenna and second antenna.
The present invention is by metal support arm is increased to guide the transmission signal and reflected signal of antenna, to be carried under the confined space
Multiple isolation between antennaes are risen, thereby increase antenna efficiency, to ensure the normal operation being wirelessly transferred.
Brief description of the drawings
Fig. 1 is the schematic diagram of a radio communication device of the embodiment of the present invention.
Fig. 2 is the schematic diagram of a radio-frequency unit of the embodiment of the present invention.
Fig. 3 A are the low-frequency current distribution schematic diagram of Fig. 2 radio-frequency units.
Fig. 3 B are the high frequency electric distribution schematic diagram of Fig. 2 radio-frequency units.
Fig. 4 A to Fig. 4 C are the voltage standing wave ratio schematic diagram of Fig. 2 radio-frequency units.
Fig. 5 A to Fig. 5 B are the isolation between antennas schematic diagram of Fig. 2 radio-frequency units.
Fig. 6 is the schematic diagram of a radio-frequency unit of the embodiment of the present invention.
Fig. 7 A to Fig. 7 B are the voltage standing wave ratio schematic diagram of Fig. 6 radio-frequency units.
Fig. 8 is the isolation between antennas schematic diagram of Fig. 6 radio-frequency units.
Primary clustering symbol description：
10 radio communication devices
102 radio-frequency signal processing modules
100th, 20,60 radio-frequency unit
200th, 210,220,600,610 antenna
230th, 630 grounding assembly
250th, 650 antenna setting area
202nd, 602 metal support arm
204th, 212,214,222,224,604,612,614 radiant body
206th, 606 feed-in plate
207th, 607 feeding portion
216th, 226,616 short-circuit component
208th, 218,228,608,618 signal feed-in component
D1, D2, D3 direction
H1 couples spacing
H2 distances
Embodiment
Fig. 1 is refer to, Fig. 1 is the schematic diagram of a radio communication device 10 of the embodiment of the present invention.Radio communication device 10
Can be any electronic product with radio communication function, such as mobile phone, computer system, wireless access point device, wireless base
Stand, USB wireless network cards etc., it is briefly made up of a radio-frequency unit 100 and a radio-frequency signal processing module 102.Radio frequency is filled
A radio communication function of 100 offer radio communication devices 10 is put, more precisely, radio-frequency signal processing module 102 can be supported
The wireless signal of multiple same frequency bands is received and dispatched simultaneously, and radio-frequency unit 100 can ensure that the isolation under this operation.It is so-called " multiple
The wireless signal of same frequency band is received and dispatched simultaneously " can be the wireless communication systme synchronization for supporting multiple input multiple output communications technology
Transmitting/receiving wireless signal, or using the different wireless communication system of same frequency band（Such as Bluetooth（Bluetooth）And Wi-Fi）Simultaneously
Transmitting/receiving wireless signal.
Fig. 2 is refer to, Fig. 2 is the schematic diagram of a radio-frequency unit 20 of the embodiment of the present invention.Radio-frequency unit 20 can be applied to
In radio-frequency unit 100 in Fig. 1, include a first antenna 200, one second antenna 210, a third antenna 220, a ground connection group
The antenna setting area 250 of part 230 and one.First antenna 200, the second antenna 210 and third antenna 220 are arranged at antenna setting area
In 250, for receiving and dispatching the wireless signal of multiple same frequency bands simultaneously.For example, first antenna 200 can be used to receive and dispatch
The signal of Bluetooth communication systems, the second antenna 210 and third antenna 220 can be used to receive and dispatch the signal of WiFi communication system.
First antenna 200 includes a metal support arm 202, one first radiant body 204, a feed-in plate 206 and a signal feed-in component
208.Feed-in plate 206 has a feeding portion 207.Signal feed-in component 208 is electrically connected at feeding portion 207, for by wireless communication
Number it is sent to the first radiant body 204 through feed-in plate 206；First radiant body 204 is arranged at the side of feed-in plate 206, is electrically connected with
In grounding assembly 230, and feed-in plate 206 is coupled to, i.e., it can produce signal by coupled modes and feed-in plate 206 and link, with
The wireless signal by the feed-in of feed-in plate 206 is received, and then launches wireless signal.Relative to the first radiant body 204, feed-in plate 206
Opposite side be then provided with metal support arm 202, metal support arm 202 is substantially less than with the one of feeding portion 207 apart from h2 to be equal to
5mm, it is also electrically connected to grounding assembly 230.The length substantially one of first radiant body 204 and metal support arm 202 works
The quarter-wave of frequency, but both be not required to it is isometric.In the embodiment of fig. 2, metal support arm 202 is roughly parallel to the first spoke
Beam 204, but not limited to this.In other embodiments, metal support arm 202 can be not parallel to the first radiant body 204.Metal support arm
202 and the first beeline between radiant body 204 need to be more than certain value, such as system applied to Bluetooth or Wi-Fi
In, the beeline between the radiant body 204 of metal support arm 202 and first generally needs to be more than or equal to 15mm, certainly, in different frequencies
In the system of rate, the beeline between the radiant body 204 of metal support arm 202 and first can make appropriate adjustment.In the case,
One reflected signal of the wireless signal produced by the second antenna 210 and third antenna 220 can be directed to metal by metal support arm 202
On support arm 202, to lift the isolation between antenna 200,210,220, and then good antenna efficiency is reached.
Specifically, the second antenna 210 and third antenna 220 are arranged on same substrate with first antenna 200, are shared and are connect
Ground component 230, to connect a system earth part of radio communication device 10.Radio-frequency signal processing module 102 is arranged at antenna and set
Put the center in area 250, first antenna 200 is generally arranged at one end of antenna setting area 250, the second antenna 210 and the 3rd day
Line 220 is generally arranged at the another of antenna setting area 250 on the bearing of trend D1 of the first radiant body 204 and metal support arm 202
End.Second antenna 210 includes one second radiant body 212, one the 3rd radiant body 214, a short-circuit component 216 and signal feedback
Enter component 218, and third antenna 220 include one the 4th radiant body 222, one the 5th radiant body 224, a short-circuit component 226 with
And a signal feed-in component 228.As shown in Fig. 2 the antenna form of the second antenna 210 and third antenna 220 is similar to plane inverse-F
Shape antenna adds earth point（Short-circuit component 216,226）, but not limited to this, the antenna of other forms is also with similar effect
Really.Second radiant body 212 and the 4th radiant body 222 are used for exciting the mode compared with low frequency, and the 3rd radiant body 214 and the 5th is radiated
Body 224 is used for exciting the mode of higher-frequency.Wherein, first antenna 200, the second antenna 210 and third antenna 220 are operated simultaneously when
CURRENT DISTRIBUTION as shown in Fig. 3 A and Fig. 3 B, Fig. 3 A show low-frequency current distribution, and Fig. 3 B show high frequency electric distribution.Due to
Two antennas 210 are relative with third antenna 220 and set, therefore wireless signal is on the second antenna 210 and third antenna 220（It is such as short
On road component 216,226）The produced sense of current D2, D3 between the second antenna 210 and third antenna 220 on the contrary, therefore have good
Good isolation between antennas.In addition, metal support arm 202 can lead the reflected signal produced by the second antenna 210 and third antenna 220
Lead to without disturbing first antenna 200 on metal support arm 202, to lift the antenna 210 of first antenna 200 and second and third antenna
Isolation between 220.In addition, the resonance current that metal support arm 202 can be also guided in first antenna 200 largely flow to first
In radiant body 204, it is thus ensured that first antenna 200 has good efficiency.
Further, Fig. 4 A are the voltage standing wave ratio of first antenna 200（Voltage Standing Wave Ratio,
VSWR）Schematic diagram, Fig. 4 B are the voltage standing wave ratio schematic diagram of the second antenna 210, and Fig. 4 C are the voltage standing wave ratio of third antenna 220
Schematic diagram, Fig. 5 A be the antenna 210 of first antenna 200 and second isolation between antennas schematic diagram, and Fig. 5 B be first antenna 200 and
The isolation between antennas schematic diagram of third antenna 220.As shown in Fig. 4 A to Fig. 5 B, first antenna 200, the second antenna 210 and the 3rd
Antenna 220 has good bandwidth, and isolation between antenna all can reach -25dB or so.
Largely it is flow to it is noted that the present invention guides the resonance current in first antenna 200 using metal support arm 202
In first radiant body 204, and the reflected current of other antennas is set to flow on metal support arm 202 without disturbing the first radiant body 204,
To ensure that antenna has good bandwidth, efficiency and isolation, one of ordinary skill in the art can should according to this make different
Modification, and not limited to this.For example, the wireless signal produced by first antenna 200 with coupled modes by the feed-in of feed-in plate 206
To the first radiant body 204, it, which couples spacing h1, can make appropriate adjustment, but not limited to this.It is appropriate that first antenna 200 can also be made
Modification, makes wireless signal with the first radiant body of other feed-in mode feed-ins 204.In addition, metal support arm 202, the first radiant body
204th, feed-in plate 206, the second radiant body 212, the 3rd radiant body 214, the 4th radiant body 222, the 5th radiant body 224 etc. are all visual
Different designs demand extends or changed in X, Y, Z axis direction, and is not limited to the shape in Fig. 1.Short-circuit component 216,226 is to even
Radiant body 212,222 and grounding assembly 230 are connect, to adjust Antenna Impedance Matching, therefore the form of short-circuit component 216,226 can
Make appropriateness adjustment depending on the overall matching of antenna and bandwidth, its shape is simultaneously unrestricted.Furthermore, for setting the substrate of radio-frequency unit 20
It can be a printed circuit board (PCB)（Printed Circuit Board, PCB）, can also be the substrate of other materials.
Fig. 6 is refer to, Fig. 6 is the schematic diagram of a radio-frequency unit 60 of another embodiment of the present invention.Radio-frequency unit 60 is with penetrating
Frequency device 20 is similar, the difference is that radio-frequency unit 60 is used for the application of two antennas, therefore is only set in antenna setting area 650
Put the antenna 610 of first antenna 600 and second.First antenna 600 is similar to first antenna 200, major difference is that metal branch
The shape and width of arm 602.When being more than certain value due to the beeline between the radiant body 604 of metal support arm 602 and first, i.e.,
Effect of the present invention is can reach, therefore the shape and width of metal support arm 602 can be adjusted on demand, and metal support arm 602 is not influenceed
Function.That is, the resonance current that metal support arm 602 can be similarly guided in first antenna 600 largely flow to the first spoke
In beam 604, and make other antennas（That is the second antenna 610）Reflected current flow on metal support arm 602 without disturb first
Radiant body 604, to ensure that antenna has good bandwidth, efficiency and isolation.Fig. 7 A are the voltage standing wave ratio of first antenna 600
Schematic diagram, Fig. 7 B are the voltage standing wave ratio schematic diagram of the second antenna 610, and Fig. 8 is the day of the antenna 610 of first antenna 600 and second
Line isolation schematic diagram.As shown in Fig. 7 A to Fig. 8, the antenna 610 of first antenna 600 and second has good bandwidth, and antenna
Between isolation also can reach -25dB or so.
In addition, the first radiant body 604 of first antenna 600 is to excite the mode compared with low frequency, feed-in plate 606 also visually should
With different as a high frequency radiation body, the mode to excite higher-frequency.Short-circuit component 616 connects the of the second antenna 610
Two radiant bodies 612, one the 3rd radiant body 614 and grounding assembly 630, to adjust Antenna Impedance Matching, therefore short-circuit component 616
The overall matching of the visual antenna of form and bandwidth make appropriateness adjustment, its shape is simultaneously unrestricted.Apart from the above, radio-frequency unit 20
Relevant modifications and change all can be applied to radio-frequency unit 60, it is and unlimited.
In addition, as known to industry, radiation frequency, bandwidth, efficiency of antenna etc. are related to antenna pattern, material etc., because
This, designer be able to should suitably adjust each component in antenna 200,210,220,600 and 610 X, Y, Z axis direction size,
Width, spacing etc., with needed for meeting system.Other such as materials, production method, the shape of each component, position all can be in response to not
Make appropriate change, not limited to this with demand.
In summary, the present invention is by metal support arm is increased to guide the transmission signal and reflected signal of antenna, to have
Limit lifts multiple isolation between antennaes under space, thereby increases antenna efficiency, to ensure the normal operation being wirelessly transferred.
Presently preferred embodiments of the present invention is the foregoing is only, what every scope according to claims of the present invention was made etc.
With change and modification, it should all belong to the covering scope of the present invention.
Claims (18)
1. a kind of radio-frequency unit, the radio-frequency unit is used for a radio communication device, the radio-frequency unit includes：
One antenna setting area；
One grounding assembly, the grounding assembly is used for providing ground connection；
One first antenna, the first antenna is arranged in the antenna setting area, for receiving and dispatching one first wireless signal, and this is first day
Line includes：
One feed-in plate, the feed-in plate has a feeding portion；
One first radiant body, first radiant body is coupled to the feed-in plate, and is electrically connected at the grounding assembly, for launching this
First wireless signal；
One first signal feed-in component, the first signal feed-in component is electrically connected at the feeding portion, for this is first wireless
Signal is sent to first radiant body through the feed-in plate, to launch first wireless signal by first radiant body；And
One metal support arm, the metal support arm has two ends, and wherein one end is electrically connected at the grounding assembly, and the other end is freely
End；And
One second antenna, second antenna is arranged in the antenna setting area, for receiving and dispatching a second wireless singal；
Wherein, the grounding assembly is located between the first antenna and second antenna, the first antenna and second antenna duplexer
The grounding assembly, the feed-in plate be located between the metal support arm and first radiant body, the metal support arm be used for guide this second
On one reflected signal of wireless signal to the metal support arm, to lift the isolation of the first antenna and second antenna.
2. radio-frequency unit as claimed in claim 1, wherein first wireless signal are fed into coupled modes by the feed-in plate
First radiant body.
3. radio-frequency unit as claimed in claim 1, wherein second antenna include：
One second radiant body；
One the 3rd radiant body, the 3rd radiant body is electrically connected at the grounding assembly；
One secondary signal feed-in component, the secondary signal feed-in component is electrically connected at second radiant body, for by this second
Wireless signal is sent to second radiant body, to launch the second wireless singal by second radiant body；And
One first short-circuit component, first short-circuit component is electrically connected between second radiant body and the grounding assembly.
4. radio-frequency unit as claimed in claim 3, the wherein radio-frequency unit also include a third antenna, the third antenna is set
In in the antenna setting area, for receiving and dispatching one the 3rd wireless signal, the third antenna includes：
One the 4th radiant body；
One the 5th radiant body, the 5th radiant body is electrically connected at the grounding assembly；
One the 3rd signal feed-in component, the 3rd signal feed-in component is electrically connected at the 4th radiant body, for by the 3rd
Wireless signal is sent to the 4th radiant body, to launch the 3rd wireless signal by the 4th radiant body；And
One second short-circuit component, second short-circuit component is electrically connected between the 4th radiant body and the grounding assembly.
5. the electricity that radio-frequency unit as claimed in claim 4, the wherein second wireless singal are produced in first short-circuit component
Flow direction opposite with the sense of current that the 3rd wireless signal is produced in second short-circuit component.
6. a radio-frequency signal processing module of radio-frequency unit as claimed in claim 1, the wherein radio communication device is arranged at
On the antenna setting area, between the first antenna and second antenna.
7. radio-frequency unit as claimed in claim 1, wherein metal support arm is roughly parallel to first radiant body.
8. a distance of radio-frequency unit as claimed in claim 1, wherein the metal support arm and the feeding portion is substantially less than etc.
In 5mm.
9. a beeline of radio-frequency unit as claimed in claim 1, wherein the metal support arm and first radiant body is substantially
It is upper to be more than or equal to 15mm.
10. a kind of radio communication device, the radio communication device includes：
One system earth part, the system earth part is used for providing ground connection；
One radio-frequency signal processing module, the radio-frequency signal processing module is used for handling multiple wireless signals；And
One radio-frequency unit, the radio-frequency unit includes：
One antenna setting area, the center of the antenna setting area sets the radio-frequency signal processing module；
One grounding assembly, the grounding assembly is electrically connected with the system earth part；
One first antenna, the first antenna is arranged in the antenna setting area, for receiving and dispatching the one first of the plurality of wireless signal
Wireless signal, the first antenna includes：
One feed-in plate, the feed-in plate has a feeding portion；
One first radiant body, first radiant body is coupled to the feed-in plate, and is electrically connected at the grounding assembly, for launching this
First wireless signal；
One first signal feed-in component, the first signal feed-in component is electrically connected at the feeding portion, for this is first wireless
Signal is sent to first radiant body through the feed-in plate, to launch first wireless signal by first radiant body；And
One metal support arm, the metal support arm has two ends, and wherein one end is electrically connected at the grounding assembly, and the other end is freely
End；And
One second antenna, second antenna is arranged in the antenna setting area, for receiving and dispatching the one second of the plurality of wireless signal
Wireless signal；
Wherein, the grounding assembly is located between the first antenna and second antenna, the first antenna and second antenna duplexer
The grounding assembly, the feed-in plate be located between the metal support arm and first radiant body, the metal support arm be used for guide this second
On one reflected signal of wireless signal to the metal support arm, to lift the isolation of the first antenna and second antenna.
11. radio communication device as claimed in claim 10, wherein first wireless signal are with coupled modes by the feed-in plate
It is fed into first radiant body.
12. radio communication device as claimed in claim 10, wherein second antenna include：
One second radiant body；
One the 3rd radiant body, the 3rd radiant body is electrically connected at the grounding assembly；
One secondary signal feed-in component, the secondary signal feed-in component is electrically connected at second radiant body, for by this second
Wireless signal is sent to second radiant body, to launch the second wireless singal by second radiant body；And
One first short-circuit component, first short-circuit component is electrically connected between second radiant body and the grounding assembly.
13. radio communication device as claimed in claim 12, the wherein radio-frequency unit also include a third antenna, the 3rd day
Line is arranged in the antenna setting area, and for receiving and dispatching one the 3rd wireless signal, the third antenna includes：
One the 4th radiant body；
One the 5th radiant body, the 5th radiant body is electrically connected at the grounding assembly；
One the 3rd signal feed-in component, the 3rd signal feed-in component is electrically connected at the 4th radiant body, for by the 3rd
Wireless signal is sent to the 4th radiant body, to launch the 3rd wireless signal by the 4th radiant body；And
One second short-circuit component, second short-circuit component is electrically connected between the 4th radiant body and the grounding assembly.
14. radio communication device as claimed in claim 13, the wherein second wireless singal are produced in first short-circuit component
The raw sense of current is opposite with the sense of current that the 3rd wireless signal is produced in second short-circuit component.
15. radio communication device as claimed in claim 10, the wherein radio-frequency signal processing module are arranged at antenna setting
Between Qu Shang, the first antenna and second antenna.
16. radio communication device as claimed in claim 10, wherein the metal support arm are roughly parallel to first radiant body.
17. a distance of radio communication device as claimed in claim 10, wherein the metal support arm and the feeding portion is generally
Less than or equal to 5mm.
18. a most short distance of radio communication device as claimed in claim 10, wherein the metal support arm and first radiant body
It is equal to 15mm from being substantially larger than.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310737700.4A CN104753554B (en) | 2013-12-27 | 2013-12-27 | Radio-frequency unit and radio communication device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310737700.4A CN104753554B (en) | 2013-12-27 | 2013-12-27 | Radio-frequency unit and radio communication device |
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| CN104753554A CN104753554A (en) | 2015-07-01 |
| CN104753554B true CN104753554B (en) | 2017-08-15 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105375108B (en) * | 2015-11-30 | 2019-01-01 | 青岛海信移动通信技术股份有限公司 | Mobile terminal with MIMO antenna |
| KR101792415B1 (en) * | 2015-12-30 | 2017-11-02 | 삼성전기주식회사 | Ant communication apparatus with improved isolation between antennas |
| CN109672019B (en) * | 2017-10-17 | 2022-04-19 | 中兴通讯股份有限公司 | Terminal MIMO antenna device and method for realizing antenna signal transmission |
| CN108965523A (en) * | 2018-07-10 | 2018-12-07 | Oppo广东移动通信有限公司 | Electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714352A (en) * | 2009-09-01 | 2012-10-03 | 斯凯克罗斯公司 | High isolation antenna system |
| CN103427149A (en) * | 2012-05-25 | 2013-12-04 | 启碁科技股份有限公司 | Antenna and electronic device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102217140B (en) * | 2008-09-22 | 2015-04-29 | 株式会社Kmw | Dual-frequency / polarization antenna for mobile-communications base station |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102714352A (en) * | 2009-09-01 | 2012-10-03 | 斯凯克罗斯公司 | High isolation antenna system |
| CN103427149A (en) * | 2012-05-25 | 2013-12-04 | 启碁科技股份有限公司 | Antenna and electronic device |
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