CN103682626B - Communication device - Google Patents
Communication device Download PDFInfo
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- CN103682626B CN103682626B CN201210350930.0A CN201210350930A CN103682626B CN 103682626 B CN103682626 B CN 103682626B CN 201210350930 A CN201210350930 A CN 201210350930A CN 103682626 B CN103682626 B CN 103682626B
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Abstract
The invention discloses a communication device which comprises a grounding element and an antenna system. The antenna system is adjacent to the grounding element. The antenna system comprises at least one first antenna, a second antenna, a connecting element and a resistor element. The second antenna is adjacent to the first antenna. The connecting element comprises a first part and a second part. The first part is coupled to the first antenna. The second part is coupled to the second antenna. The resistor element is coupled between the first part and the second part of the connecting element. Through the resistor element, the isolation between the first antenna and the second antenna is increased. According to the invention, on the premise that the antenna radiation efficiency is not affected, the isolation between the antennas is effectively improved.
Description
Technical field
The present invention relates to a kind of communicator, specifically for a kind of communicator of the antenna system including high-isolation.
Background technology
In recent years, intelligent mobile phone has become one of modern's indispensable action communication device in life, and it makes
People become convenient on the living conditions.User generally has multiple demands to intelligent mobile phone.For example, available intelligence
The multiple antennas of energy type mobile phone reach mimo (multiple-input multiple-output) operation, to accelerate the biography of data
Defeated speed；Or for example, using the multiple antennas of intelligent mobile phone reach double card, double treat, the purpose of bilateral, wherein when intelligent handss
While first sim (the subscriber identity module) card of machine transmits data by an antenna, intelligent mobile phone
The 2nd sim card still be able to by another antenna transmission voice signal.This makes the user with double-card mobile phone make actual
Used time is more facilitated.In order to meet the demand, operate in the multiaerial system in same frequency band and must be configured at space
In a narrow and small action communication device (for example: an intelligent mobile phone).Because the distance between these antenna is very little, antenna it
Between coupling amount and interference also will increase, so that the operation efficiency of multiaerial system is declined to a great extent.Therefore, in mobile communication
In the case of the limited space of device, design have high-isolation multiaerial system, reduce antenna between coupling amount and
Interference, actually a major challenge of antenna designers.
Therefore, it is necessary to provide a kind of novel multiaerial system, it is applied among an action communication device.This is many days
Linear system system can not only have high-isolation, also can maintain good radiation efficiency, may conform to the demand in practical application.
Content of the invention
It is an object of the invention to provide a kind of communicator, it includes an antenna system.In order to improve this antenna system
In isolation between multiple antennas, one resistive element is coupled between the plurality of antenna the present invention, to absorb each sky
Line is in the couple current of its feed side.Therefore, the present invention can improve on the premise of not affecting antenna radiation efficiency effectively
Isolation between multiple antennas.
In one embodiment, the present invention provides a kind of communicator, comprising: an earth element；And an antenna system, adjacent
It is bordering on this earth element, wherein this antenna system at least includes: a first antenna；One second antenna, is adjacent to this first antenna；
One connecting element, including a Part I and a Part II, wherein this Part I is coupled to this first antenna, and this second
Part is coupled to this second antenna；And a resistive element, it is coupled to this Part I and this Part II of this connecting element
Between；Wherein this connecting element and this resistive element make the isolation between this first antenna and this second antenna increase.
In another embodiment, the present invention provides a kind of communicator, comprising: an earth element；And an antenna system,
It is adjacent to this earth element, wherein this antenna system at least includes: a first antenna, including one first feeding portion；One second day
Line, is adjacent to this first antenna, and includes one second feeding portion；And a resistive element, it is coupled to this first feeding portion and should
Between second feeding portion；Wherein this resistive element makes the isolation between this first antenna and this second antenna increase.
In one embodiment, this at least includes first antenna and the antenna system of the second antenna, using connecting element and electricity
Resistance element is so that the isolation between first antenna and the second antenna increases.The not good main cause of isolation is these antenna
Between there is couple current.When first antenna is excited, the second antenna has but captured the part energy of first antenna, therefore drops
Low isolation therebetween.In a preferred embodiment of the invention, a resistive element is arranged between first antenna and the second antenna,
With absorption couple current therebetween so that the isolation between first antenna and the second antenna can improve effectively.Now, first
Antenna and the second antenna still can maintain good radiation efficiency.
In one embodiment, resistive element can increase the isolation between first antenna and the second antenna, wherein resistance
Element can be a chip resister.In other words, merely with simple chip resister, you can effectively improve antenna system every
From degree.In a preferred embodiment, a resistance value of chip resister is at least 75 ohm.
In one embodiment, first antenna and the second antenna operation are in identical at least action communication band.Due to
One antenna is overlapping with the operational frequency bands of the second antenna, inquires into the isolation ability between first antenna and the second antenna in the case
There is meaning.
In one embodiment, first antenna also includes one first feeding portion, and the second antenna also includes one second feeding portion.
Connecting element can be coupled between the first feeding portion and the second feeding portion.In the case, resistive element can be via connection
Element absorbs the couple current between first antenna and the second antenna, and effectively improves between first antenna and the second antenna
Isolation.
In one embodiment, first antenna also includes one first short, and the second antenna also includes one second short.
Connecting element can be coupled between the first short and the second short.In the case, resistive element can be via connection
Element absorbs the couple current between first antenna and the second antenna, and effectively improves between first antenna and the second antenna
Isolation.
In another embodiment, first antenna also includes one first feeding portion and one first short, and the second antenna is also
Including one second feeding portion and one second short.Connecting element can be coupled between the first feeding portion and the second short,
Or connecting element can be coupled between the second feeding portion and the first short.In the case, resistive element still can be via
Connecting element absorbs the couple current between first antenna and the second antenna, and effectively improve first antenna and the second antenna it
Between isolation.
In one embodiment, antenna system is adjacent to a corner of earth element, and first antenna and the second antenna divide
It is not adjacent to the two edges of earth element, this two edges of wherein earth element are substantially orthogonal.In the case, resistance unit
Part can absorb couple current between first antenna and the second antenna via connecting element, and effectively improve first antenna and
Isolation between second antenna.
Brief description
Fig. 1 is the schematic diagram showing communicator described according to a first embodiment of the present invention；
Fig. 2 a is the s Parameter Map showing communicator described according to a first embodiment of the present invention；
Fig. 2 b is to show that communicator described according to a first embodiment of the present invention does not have s parameter during resistive element
Figure；
Fig. 3 is the antenna efficiency figure showing communicator described according to a first embodiment of the present invention；
Fig. 4 is the schematic diagram showing communicator described according to a second embodiment of the present invention；
Fig. 5 is the schematic diagram showing communicator described according to a third embodiment of the present invention；
Fig. 6 is the schematic diagram showing communicator described according to a fourth embodiment of the present invention；
Fig. 7 is the schematic diagram showing communicator described according to a fifth embodiment of the present invention；
Fig. 8 is the schematic diagram showing communicator described according to a sixth embodiment of the present invention.
[Main Reference Numerals explanation]
100th, 400,500,600,700,800～communicator；
10～earth element；
11st, 41,71～first antenna；
111st, 411,811～the first feeding portion；
112nd, 412,712,812～the first signal source；
12nd, 42,72～the second antenna；
121st, 421,821～the second feeding portion；
122nd, 422,722,822～secondary signal source；
13～resistive element；
14th, 44,54,64,74～connecting element；
141st, 441,541, the 641, Part I of 741～connecting element；
142nd, 442,542, the 642, Part II of 742～connecting element；
21st, 210～reflection coefficient (s11) curve；
22nd, 220～reflection coefficient (s22) curve；
23rd, 230～isolation (s21) curve；
31st, 32～antenna efficiency curve；
413～the first short；
423～the second short.
Specific embodiment
Be that the above objects, features and advantages of the present invention can be become apparent, cited below particularly go out the present invention concrete reality
Apply example, and coordinate appended accompanying drawing, be described in detail below.
Fig. 1 is the schematic diagram showing communicator 100 described according to a first embodiment of the present invention.Communicator 100 can
For an intelligent mobile phone, a panel computer, or a notebook computer.As shown in figure 1, communicator 100 includes a ground connection unit
Part 10 and an antenna system, wherein this antenna system are adjacent to earth element 10.This antenna system includes at least one first antenna
11st, one second antenna 12, a resistive element 13, and a connecting element 14.Second antenna 12 is adjacent to first antenna 11.Connect
Element 14 includes a Part I 141 and a Part II 142, and wherein Part I 141 is coupled to first antenna 11, and second
Part 142 is coupled to the second antenna 12.Resistive element 13 is coupled to Part I 141 and the Part II 142 of connecting element 14
Between.In another embodiment, first antenna 11 may also include one first feeding portion 111, and it is coupled to one first signal source
112, and the second antenna 12 more may include one second feeding portion 121, it is coupled to a secondary signal source 122.It should be noted that
The present invention is not limited to this.In other embodiments, communicator 100 more may include other necessary elements, for example: a medium base
Plate, a processor, a battery, and a shell (not shown).
Fig. 2 a is the s Parameter Map showing communicator 100 described according to a first embodiment of the present invention.In some embodiments
In, the length of earth element 10 is about 120mm, and width is about 70mm.The size of first antenna 11 and the second antenna 12 is respectively about
For 30x 10x 5mm3.First antenna 11 and the second antenna 12 all can produce a resonance mode near about 900mhz low frequency, with
Cover gsm900 communication band (about from 880mhz to 960mhz).Reflection coefficient (s11) curve 21 represents the anti-of first antenna 11
Penetrate coefficient (s11).Reflection coefficient (s22) curve 22 represents the reflection coefficient (s22) of the second antenna 12.Isolation (s21) curve
23 represent the isolation (s21) between first antenna 11 and the second antenna 12.As shown in 2a figure, first antenna 11 and second day
Line 12 can operate in identical at least action communication band.In certain embodiments, a resistance value of resistive element 13 is about
For 300 ohm, and resistive element 13 and connecting element 14 can make the isolation between first antenna 11 and the second antenna 12
(s21) minimum in gsm900 communication band improve to about -30db.
Fig. 2 b is to show that communicator 100 described according to a first embodiment of the present invention does not have s during resistive element 13
Parameter Map.In this example, resistive element 13 is removed by this antenna system.Reflection coefficient (s11) curve 210 represents first
The reflection coefficient (s11) of antenna 11.Reflection coefficient (s22) curve 220 represents the reflection coefficient (s22) of the second antenna 12.Isolation
Degree (s21) curve 230 represents the isolation (s21) between first antenna 11 and the second antenna 12.Contrast with 2a figure, when this sky
When the resistive element 13 of linear system system is removed, the isolation between first antenna 11 and the second antenna 12 is in gsm900 communication band
Interior about -9db to -11db.From Fig. 2 a, Fig. 2 b, if resistive element 13 adds this antenna system, resistive element 13 is permissible
Effectively absorb the couple current between first antenna 11 and the second antenna 12, and first antenna 11 and second is significantly increased
Isolation between antenna 12.
Fig. 3 is the antenna efficiency figure showing communicator 100 described according to a first embodiment of the present invention.Antenna efficiency is bent
Line 31 represents the antenna efficiency of first antenna 11, and antenna efficiency curve 32 represents the antenna efficiency of the second antenna 12.As Fig. 3 institute
Show, first antenna 11 and the second antenna 12 all have good antenna efficiency in gsm900 communication band and (include s parameter
The radiation efficiency considering).Present invention is particularly suitable for application in order to provide pluralistic function, in the row of internal configuration multiple antenna
Dynamic communicator.While improving isolation, the antenna efficiency of the present invention also can meet demand during practical application.
Fig. 4 is the schematic diagram showing communicator 400 described according to a second embodiment of the present invention.Communicator 400
One antenna system includes a first antenna 41 and one second antenna 42.In a second embodiment, first antenna 41 also includes one
One short 413, and the second antenna 42 also includes one second short 423, the wherein first short 413 and the second short
423 are respectively coupled to earth element 10.Connecting element 44 includes a Part I 441 and a Part II 442, wherein first
Divide 441 to be coupled to the first short 413, and Part II 442 is coupled to the second short 423.The communication dress of second embodiment
Put 400 remaining feature all similar to first embodiment.In a second embodiment, resistive element 13 is coupled to first antenna 41
Between first short 413 and the second short 423 of the second antenna 42, to absorb between first antenna 41 and the second antenna 42
Couple current.Therefore, the communicator 400 of second embodiment also can have functions that similar to first embodiment.
Fig. 5 is the schematic diagram showing communicator 500 described according to a third embodiment of the present invention.In 3rd embodiment
In, first antenna 41 also includes one first feeding portion 411 and one first short 413, and the second antenna 42 also includes one second
Feeding portion 421 and one second short 423.Connecting element 54 includes a Part I 541 and a Part II 542, and wherein
A part 541 is coupled to the first short 413 of first antenna 41, and Part II 542 is coupled to the second of the second antenna 42
Feeding portion 421.Remaining feature of the communicator 500 of 3rd embodiment is all similar to second embodiment.Resistive element 13 is permissible
There are different link positions, also can absorb the couple current between first antenna 41 and the second antenna 42.Therefore, the 3rd enforcement
The communicator 500 of example also can have functions that similar to first embodiment.
Fig. 6 is the schematic diagram showing communicator 600 described according to a fourth embodiment of the present invention.In fourth embodiment
In, connecting element 64 includes a Part I 641 and a Part II 642, the wherein projection of Part I 641 and earth element
10 is overlapping, and the projection of Part II 642 is also overlapping with earth element 10.The Part I 641 of connecting element 64 is coupled to
First feeding portion 111 of one antenna 11, and the Part II 642 of connecting element 64 is coupled to the second feeding portion of the second antenna 12
121.In the fourth embodiment, connecting element 64 and resistive element 13 can be arranged at the top of ground plane 10.Fourth embodiment
Communicator 600 remaining feature all similar to first embodiment.Resistive element 13 can absorb first antenna 11 and second
Couple current between antenna 12.Therefore, the communicator 600 of fourth embodiment also can have the work(similar to first embodiment
Effect.
Fig. 7 is the schematic diagram showing communicator 700 described according to a fifth embodiment of the present invention.In the 5th embodiment
In, an antenna system of communicator 700 is adjacent to a corner of earth element 10.This antenna system includes a first antenna
71 and one second antenna 72, and first antenna 71 and the second antenna 72 are respectively adjacent in the two edges of earth element 10, wherein connect
This two edges of ground element 10 are substantially orthogonal.Connecting element 74 includes a Part I 741 and a Part II 742, its
Middle Part I 741 is coupled to first antenna 71, and Part II 742 is coupled to the second antenna 72.In the 5th embodiment, even
Connect element 74 and resistive element 13 can be coupled between first antenna 71 and the second antenna 72.In other words, connecting element 74 He
The link position of resistive element 13 is not the restrictive condition of the present invention.Remaining feature of the communicator 700 of the 5th embodiment
All similar to first embodiment.Resistive element 13 can absorb the couple current between first antenna 71 and the second antenna 72.Cause
This, the communicator 700 of the 5th embodiment also can have functions that similar to first embodiment.
Fig. 8 is the schematic diagram showing communicator 800 described according to a sixth embodiment of the present invention.In sixth embodiment
In, first antenna 11 also includes one first feeding portion 811, and a microwave signal of its transmission the first signal source 812 is to first antenna
11, and the second antenna 12 also includes one second feeding portion 821, a microwave signal in its transmission secondary signal source 822 was to second day
Line 12.First feeding portion 811 and the second feeding portion 812 can have variously-shaped, for example: s font or l font.Real the 6th
Apply in example, resistive element 13 is coupled directly to the first feeding portion 811 of first antenna 11 and the second feeding portion of the second antenna 12
Between 812, and need not couple via any connecting element.Remaining feature of the communicator 800 of sixth embodiment is all with
One embodiment is similar.Resistive element 13 can absorb the couple current between first antenna 11 and the second antenna 12.Therefore, the 6th
The communicator 800 of embodiment also can have functions that similar to first embodiment.
Ordinal number in this specification and claim, such as " first ", " second ", " the 3rd " etc., each other
Not precedence relationship sequentially, it is only used for indicating distinguishes two different elements with same name.
Though the present invention is open as above with preferred embodiment, so it is not limited to the scope of the present invention, any this area
Those of ordinary skill, without departing from the spirit and scope of the present invention, when doing a little change and retouching, the therefore present invention
Protection domain is defined when the scope being defined depending on appended claim.
Claims (3)
1. a kind of communicator, comprising:
One earth element；And
One antenna system, is adjacent to this earth element, and wherein this antenna system at least includes:
One first antenna, including one first feeding portion and one first short, wherein this first feeding portion is coupled to one first letter
Number source, this first short is coupled to this earth element；
One second antenna, is adjacent to this first antenna, including one second feeding portion and one second short, wherein this second feed-in
Portion is coupled to a secondary signal source, and this second short is coupled to this earth element；
One connecting element, including a Part I and a Part II, wherein this Part I is coupled to this first short, and
This Part II is coupled to this second feeding portion；And
One resistive element, is coupled between this Part I of this connecting element and this Part II；
Wherein this connecting element and this resistive element make the isolation between this first antenna and this second antenna increase；
Wherein this antenna system is adjacent to a corner of this earth element, this first antenna and this second antenna be respectively adjacent in
The two edges of this earth element, and this edge of this earth element is substantially orthogonal.
2. communicator as claimed in claim 1, wherein this resistive element are a chip resister, and this chip resister
One resistance value is at least 75 ohm.
3. communicator as claimed in claim 1, wherein this first antenna and this second antenna operation are at least one identical
Mobile communication frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350930.0A CN103682626B (en) | 2012-09-20 | 2012-09-20 | Communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210350930.0A CN103682626B (en) | 2012-09-20 | 2012-09-20 | Communication device |
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| Publication Number | Publication Date |
|---|---|
| CN103682626A CN103682626A (en) | 2014-03-26 |
| CN103682626B true CN103682626B (en) | 2017-01-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210350930.0A Active CN103682626B (en) | 2012-09-20 | 2012-09-20 | Communication device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104600428B (en) * | 2015-01-22 | 2017-07-07 | 成都锦江电子***工程有限公司 | A kind of system for improving continuous wave radar isolation between transmitting and receiving antenna |
| TWI593167B (en) * | 2015-12-08 | 2017-07-21 | 財團法人工業技術研究院 | Antenna array |
| CN113078451B (en) * | 2021-03-29 | 2022-07-26 | 联想(北京)有限公司 | Antenna system and electronic equipment |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202050452U (en) * | 2011-04-18 | 2011-11-23 | 惠州Tcl移动通信有限公司 | Wireless communication equipment |
| CN102403571A (en) * | 2010-09-09 | 2012-04-04 | 中兴通讯股份有限公司 | Antenna device and mobile terminal |
| CN102437427A (en) * | 2010-09-29 | 2012-05-02 | 比亚迪股份有限公司 | Antenna device and terminal equipment |
| EP2466684A1 (en) * | 2010-12-14 | 2012-06-20 | Centre National de la Recherche Scientifique (C.N.R.S) | Diversity antenna system |
-
2012
- 2012-09-20 CN CN201210350930.0A patent/CN103682626B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102403571A (en) * | 2010-09-09 | 2012-04-04 | 中兴通讯股份有限公司 | Antenna device and mobile terminal |
| CN102437427A (en) * | 2010-09-29 | 2012-05-02 | 比亚迪股份有限公司 | Antenna device and terminal equipment |
| EP2466684A1 (en) * | 2010-12-14 | 2012-06-20 | Centre National de la Recherche Scientifique (C.N.R.S) | Diversity antenna system |
| CN202050452U (en) * | 2011-04-18 | 2011-11-23 | 惠州Tcl移动通信有限公司 | Wireless communication equipment |
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