CN104124512B - Communicator - Google Patents
Communicator Download PDFInfo
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- CN104124512B CN104124512B CN201310152952.0A CN201310152952A CN104124512B CN 104124512 B CN104124512 B CN 104124512B CN 201310152952 A CN201310152952 A CN 201310152952A CN 104124512 B CN104124512 B CN 104124512B
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- communicator
- frequency band
- antenna element
- metal portion
- load point
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Abstract
The present invention provides a kind of communicator, and this communicator includes an earth element and an antenna element.One edge of earth element has a breach, antenna element includes that a metal portion is positioned at breach, wherein metal portion has one first end and one second end, this first end and this second end are away from each other, and it is respectively adjacent to two end points of a pair linea angulata of breach, and first end as one first load point of antenna element, the second end is as one second load point of antenna element；Wherein, the first load point is coupled to one first signal source via switching switch and one first match circuit, and the second load point is coupled to a secondary signal source via an inductance element and one second match circuit.The present invention can excite a ground plane mode to help radiation.Therefore, the present invention can reduce the overall dimensions of antenna element and communicator effectively, can be suitably used for the mobile device of various miniaturization.
Description
Technical field
The present invention relates to a kind of communicator, particularly relate to one and include switchable type doubly-fed antenna element
The mobile communications device of (Switchable Dual-feed Antenna Element).
Background technology
Recently as the rapid advances of wireless communication technology, people for communicator the most only with list
For the purpose of pure call, and there are more multiple demands.In order to meet the demand of people, maintain simultaneously
The characteristic that communicator is frivolous, short and small, in communicator, limited design space will seem especially precious.
In view of this, design space the least in communicator designs an antenna, and still
Multi-band operation can be reached, be a major challenge for antenna designers.
Summary of the invention
In order to overcome the defect of prior art, it is an object of the invention to provide a kind of communicator and can
Suitching type doubly-fed antenna element (Switchable Dual-feed Antenna Element).This communicator
At least include an antenna element and an earth element.This antenna element is collectively forming with this earth element to be had
One ground plane antenna of one asymmetric dipole antenna configuration.This antenna element has two different load points.
In the case of antenna size remains unchanged, by controlling conducting or the open circuit of a switching circuit, this antenna
Element can be selectively coupled to different match circuits, thus operates in low frequency respectively and high frequency is many
Individual communication band.Therefore, the present invention can reach the multi-band operation of small sized antenna element.
In the preferred embodiment, the present invention provides a kind of communicator, including: an earth element, wherein
One edge of this earth element has a breach；And an antenna element, including a metal portion, wherein should
Metal portion is positioned at this breach, and this metal portion has one first end and one second end, this first end and this
Two ends away from each other and are respectively adjacent to two end points of a pair linea angulata in this breach, this metal portion this first
Hold one first load point as this antenna element, and this second end in this metal portion is as this antenna element
One second load point；Wherein, this first load point is via switching switch and an one first match circuit coupling
It is connected to one first signal source, and this second load point couples via an inductance element and one second match circuit
To a secondary signal source.
In certain embodiments, this antenna element can operate in the following manner.When this antenna element by
When this second load point receives feed in energy analysis, this switching switch being now coupled to this first load point will be cut
It is changed to an off state.Therefore, this antenna element will not be affected by this first load point, and permissible
One second resonance mode is produced in one second frequency band (low-frequency band).On the other hand, when this antenna element
When being received feed in energy analysis by this first load point, this switching switch being now coupled to this first load point will
Switch to a conducting state.Feed in energy analysis from this first signal source can be entered by this first load point
This antenna element so that this antenna element can produce one first altogether in one first frequency band (high frequency band)
Shake mode.Must be noted that this second load point be not coupled to another switching switch to avoid this
The impact that two load points excite for this first resonance mode of this first frequency band.The substitute is, should
Second load point is coupled to an inductance element.Owing to this inductance element can provide a height in a high frequency band
Resistance value, when this first resonance mode that can effectively block in this first frequency band is excited by this inductance element
Resonance current can flow to the problem of this second load point, so that this first load point and this second load point
It is unlikely to interfere with each other in this first frequency band.Therefore, this inductance element can have and this switching switch phase
As effect.
In certain embodiments, when this antenna element operates in this first frequency band, this first match circuit
There is provided one first reactance value so that the total length of a resonance path of this antenna element is less than this first frequency band
0.15 times of wavelength of low-limit frequency, it is much smaller than 0.25 times of wavelength needed for general tradition.When this antenna
Element operation is when this second frequency band, and this second match circuit provides one second reactance value so that this antenna
The total length of this resonance path of element is less than 0.15 times of wavelength of the low-limit frequency of this second frequency band, and it is remote
Less than 0.25 times of wavelength needed for general tradition.
In certain embodiments, this first frequency band at least contains the frequency band of about 1710MHz to 2690MHz,
And this second frequency band at least contains the frequency band of about 824MHz to 960MHz.In certain embodiments, should
Inductance element is a chip inducer (Chip Inductor), a distributed inductor (Distributed
Or a combination of this chip inducer and this distributed inductor Inductor),.In certain embodiments,
This metal portion substantially one is inverted L-shaped, or substantially one triangle.In certain embodiments, this connects
This breach substantially one rectangle of ground element, or substantially there is a smooth curved edge.Implement at some
In example, this breach of this earth element is generally formed in a corner of this earth element.
In certain embodiments, the size of this breach at this antenna element place is only about 10 × 15mm2。
Under this small scale structures, this antenna element can at least contain GSM850/900 and
Two wideband frequency band of GSM1800/1900/UMTS/LTE2300/2500.
The present invention can excite a ground plane mode to help radiation.Therefore, the present invention can contract effectively
Miniature antenna element and the overall dimensions of communicator, can be suitably used for the mobile device of various miniaturization.
Accompanying drawing explanation
Fig. 1 is the schematic diagram showing communicator described according to a first embodiment of the present invention；
Fig. 2 is to show that antenna element described according to a first embodiment of the present invention is conducting shape in switching switch
Return loss figure when state or off state；
Fig. 3 is to show that antenna element described according to a first embodiment of the present invention is conducting shape in switching switch
Antenna efficiency figure when state or off state；
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.
Wherein, description of reference numerals is as follows:
100,400,500～communicator；
10,50～earth element；
101,501～edge；
102,502～breach；
103,503～the diagonal of breach；
104,105,504,505～cornerwise end points；
11,41～antenna element；
110,410～metal portion；
111,411～first end (the first load point of antenna element) in metal portion；
112,412～second end (the second load point of antenna element) in metal portion；
12～switching switch；
13～first match circuit；
14～first signal source；
15,45～inductance element；
16～second match circuit；
17～secondary signal source；
21～antenna element in switch switch conduction time return loss curve；
22～antenna element in switching switch open circuit time return loss curve；
23～first frequency band；
24～second frequency band；
31～antenna element in switch switch conduction time antenna efficiency curve；
32～antenna element in switching switch open circuit time antenna efficiency curve；
451～chip inducer；
452～distributed inductor.
Detailed description of the invention
In order to the above-mentioned purpose of the present invention, feature and advantage can be become apparent, cited below particularly go out this
Bright specific embodiment, and coordinate accompanying drawing, it is described in detail below.
Fig. 1 is the schematic diagram showing communicator 100 described according to a first embodiment of the present invention.Communication
Device 100 can be a smart mobile phone (Smart Phone), a panel computer (Tablet Computer), or
It is a notebook computer (Notebook Computer).As it is shown in figure 1, communicator 100 at least includes
One earth element 10 and an antenna element 11.Earth element 10 can be a metal flat, and is arranged at
(not shown) on one medium substrate, such as: a FR4 substrate or a system circuit board.Earth element 10
An edge 101 there is a breach 102.In certain embodiments, the breach 102 of earth element 10 is big
Cause to be formed at a corner of earth element 10.Antenna element 11 includes a metal portion 110, and it is positioned at
In the breach 102 of earth element 10.In the present embodiment, the breach 102 of earth element 10 is substantially
One rectangle, and metal portion 110 substantially is inverted L-shaped.But, the present invention is not limited to this.At it
In his embodiment, the breach 102 of earth element 10 also can substantially other shapes, such as: a triangle,
One pentagon, a circular arc, or an irregular shape；And metal portion 110 also can substantially other shapes,
Such as: a vertical bar shaped, J-shaped, a U-shaped, a W font, or a S font.Metal
Portion 110 has one first end 111 and one second end 112.First end 111 and second in metal portion 110
End 112 away from each other, and is respectively adjacent to two end points 104,105 of a pair linea angulata 103 in breach 102.
First end 111 in metal portion 110 is as one first load point of antenna element 11, and metal portion
Second end 112 of 110 is as one second load point of antenna element 11.This first load point is via all
Change switch 12 and one first match circuit 13 is coupled to one first signal source 14, and this second load point warp
It is coupled to a secondary signal source 17 by an inductance element 15 and one second match circuit 16.Implement at some
In example, the first match circuit 13 and the second match circuit 16 each include one or more capacitor and electricity
Sensor (not shown).In certain embodiments, inductance element 15 be a chip inducer (Chip Inductor),
One distributed inductor (Distributed Inductor), or this chip inducer and this distributed inductor
A combination.In certain embodiments, switching switch 12 can be with a PIN-type diode (PIN diode)
Implement it.When switching switch 12 conducting, antenna element 11 is received feed in energy analysis by this first load point,
And operate at one first frequency band；And when switching switch 12 open circuit, antenna element 11 is by this second feed-in
Point receives feed in energy analysis, and operates at one second frequency band, wherein the frequency of this second frequency band less than this first
The frequency of frequency band.Inductance element 15 can stop that in this first frequency band resonance current enters this second feed-in
Point.First match circuit 13 can provide one first reactance value, and the total length in metal portion 110 can be little
0.15 times of wavelength in the low-limit frequency of this first frequency band.Second match circuit 16 can provide one second
Reactance value, and the total length in metal portion 110 can be less than 0.15 times of ripple of the low-limit frequency of this second frequency band
Long.In certain embodiments, communicator 100 also includes a control unit (not shown), this control list
Unit can selectively turn on or be not turned on switching open according to a user input signal or a detection signal
Close 12.In certain embodiments, communicator 100 also includes a sensor (not shown), this sensor
The frequency of a neighbouring electromagnetic signal can be detected, and produce this detection signal according to this.Must be noted that
Communicator 100 may also include other elements, such as: a contact panel, a processor, a speaker,
One battery, and a shell (not shown).
Fig. 2 is to show that antenna element 11 described according to a first embodiment of the present invention is in switching switch 12
Return loss (Return Loss) figure when conducting state or off state.In the present embodiment, antenna element
The size of the breach 102 at the place, metal portion 110 of 11 is only about 10 × 15mm2, and earth element 10
Size be about 120 × 60mm2.When switching switch 12 is in the conduction state, according to antenna element
The return loss curve 21 of 11 understands, and antenna element 11 will contain one first frequency band 23.When switching switch
12 when being in off state, loses curve 22, antenna element general according to the return of antenna element 11
Contain one second frequency band 24.In the preferred embodiment, the first frequency band 23 can be contained
GSM1800/1900/UMTS/LTE2300/2500 frequency band, it is about between 1710MHz to 2690MHz
Between, and the second frequency band 24 can contain GSM850/900 frequency band, it is about between 824MHz to 960MHz
Between.
Fig. 3 shows that antenna element 11 described according to a first embodiment of the present invention switchs 12 for leading in switching
Antenna efficiency (Antenna Efficiency) figure when logical state or off state.When switching switch 12 is in
During conducting state, according to the antenna efficiency curve 31 of antenna element 11, antenna element 11 is in first
Antenna efficiency (comprising the radiation efficiency returning loss) in frequency band 23 is about between 58% to 92%.When
When switching switch 12 is in off state, according to the antenna efficiency curve 32 of antenna element 11, sky
The kind of thread elements 11 antenna efficiency in the second frequency band 24 (comprising the radiation efficiency returning loss) about between
Between 60% to 72%.Therefore, antenna element 11 is respectively provided with in the first frequency band 23 and the second frequency band 24
Good antenna efficiency, may conform to actual application needs.
Fig. 4 is the schematic diagram showing communicator 400 described according to a second embodiment of the present invention.Second
Embodiment is substantially similar to first embodiment, and both difference is, an antenna of communicator 400
An one metal portion 410 substantially triangle of element 41, and an inductance element of communicator 400
45 include distributed inductor 451 and a combination of a chip inducer 452.At communicator 400
In, one first end 411 in metal portion 410 and one second end 412 (that is, the 1 of antenna element 41
One load point and one second load point) be still adjacent to the diagonal 103 of breach 102 two end points 104,
105.Remaining feature of second embodiment is all similar to first embodiment, so two embodiments all can reach phase
As operating effect.
Fig. 5 is the schematic diagram showing communicator 500 described according to a third embodiment of the present invention.3rd
Embodiment is substantially similar to first embodiment, and both difference is, a ground connection of communicator 500
One breach 502 of element 50 substantially has a smooth curved edge.In communicator 500, metal portion
First end 111 of 110 and the second end 112 (that is, one first load point of antenna element 11 and one second
Load point) still it is adjacent to two end points 504,505 of a pair linea angulata 503 of breach 502.3rd implements
Remaining feature of example is all similar to first embodiment, so two embodiments all can reach similar operating effect.
The present invention proposes a kind of communicator and antenna element thereof.This antenna element includes a ground plane antenna,
It can excite a ground plane mode to help radiation.Therefore, the present invention can reduce antenna element effectively
Part and the overall dimensions of communicator, can be suitably used for the mobile device of various miniaturization.
Above-described component size, component shape, component parameters, and frequency range is only for example,
It is not intended to limit the present invention.Designer can adjust these setting values according to different demands.
Ordinal number in this specification and claim, such as " first ", " second ", " the 3rd "
Etc., precedence relationship the most sequentially each other, it is only used for indicating differentiation two and has identical
The different elements of name.
Though the present invention discloses as above with preferred embodiment, so it is not limited to the scope of the present invention, appoints
What those of ordinary skill in the art, without departing from the spirit and scope of the present invention, when can do a little more
Moving and retouching, therefore protection scope of the present invention is when being defined in the range of standard depending on appended claim.
Claims (10)
1. a communicator, including:
One earth element, wherein an edge of this earth element has a breach；And
One antenna element, including a metal portion, wherein this metal portion is positioned at this breach, and this metal portion has
One first end and one second end, this first end and this second end is had away from each other and to be respectively adjacent in this breach
Two end points of a pair linea angulata, this first end in this metal portion as one first load point of this antenna element,
And this second end in this metal portion is as one second load point of this antenna element；
Wherein, this first load point is coupled to one first letter via a switching switch and one first match circuit
Number source, and this second load point is coupled to a secondary signal via an inductance element and one second match circuit
Source.
2. communicator as claimed in claim 1, wherein when this switching switch conduction, this antenna
Element is received feed in energy analysis by this first load point, and operates in one first frequency band.
3. communicator as claimed in claim 2, wherein this first match circuit provides one first electricity
Anti-value, and the total length in this metal portion is less than 0.15 times of wavelength of the low-limit frequency of this first frequency band.
4. communicator as claimed in claim 2, wherein when this switching switch open circuit, this antenna
Element is received feed in energy analysis by this second load point, and operates in one second frequency band, wherein this second frequency band
Frequency less than the frequency of this first frequency band.
5. communicator as claimed in claim 4, wherein this second match circuit provides one second electricity
Anti-value, and the total length in this metal portion is less than 0.15 times of wavelength of the low-limit frequency of this second frequency band.
6. communicator as claimed in claim 4, wherein this first frequency band at least contains 1710MHz
To the frequency band of 2690MHz, and this second frequency band at least contains the frequency band of 824MHz to 960MHz.
7. communicator as claimed in claim 1, wherein this inductance element be a chip inducer,
One distributed inductor, or a combination of this chip inducer and this distributed inductor.
8. communicator as claimed in claim 1, wherein this metal portion substantially one is inverted L-shaped,
Or substantially one triangle.
9. communicator as claimed in claim 1, wherein this breach substantially of this earth element
Rectangle, or substantially there is a smooth curved edge.
10. communicator as claimed in claim 1, wherein this breach of this earth element substantially forms
A corner in this earth element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310152952.0A CN104124512B (en) | 2013-04-27 | 2013-04-27 | Communicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310152952.0A CN104124512B (en) | 2013-04-27 | 2013-04-27 | Communicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104124512A CN104124512A (en) | 2014-10-29 |
| CN104124512B true CN104124512B (en) | 2016-09-14 |
Family
ID=51769842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310152952.0A Active CN104124512B (en) | 2013-04-27 | 2013-04-27 | Communicator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104124512B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP4016741A1 (en) * | 2014-11-18 | 2022-06-22 | CommScope Technologies LLC | Cloaked low band elements for multiband radiating arrays |
| CN107293838A (en) * | 2016-03-31 | 2017-10-24 | 宏碁股份有限公司 | The communicator of antenna element with narrow ground plane clearance zone |
| CN107453023B (en) * | 2017-06-22 | 2020-02-18 | 瑞声科技(新加坡)有限公司 | Antenna system and mobile terminal |
| CN109524786A (en) * | 2018-09-20 | 2019-03-26 | 维沃移动通信有限公司 | A kind of antenna and terminal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064590A1 (en) * | 2004-12-16 | 2006-06-22 | Matsushita Electric Industrial Co., Ltd. | Polarized wave switching antenna |
-
2013
- 2013-04-27 CN CN201310152952.0A patent/CN104124512B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006064590A1 (en) * | 2004-12-16 | 2006-06-22 | Matsushita Electric Industrial Co., Ltd. | Polarized wave switching antenna |
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| Publication number | Publication date |
|---|---|
| CN104124512A (en) | 2014-10-29 |
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