CN104283005A - Communication device - Google Patents
Communication device Download PDFInfo
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- CN104283005A CN104283005A CN201310286478.0A CN201310286478A CN104283005A CN 104283005 A CN104283005 A CN 104283005A CN 201310286478 A CN201310286478 A CN 201310286478A CN 104283005 A CN104283005 A CN 104283005A
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- end points
- metal section
- communication device
- frequency band
- antenna element
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Abstract
A communication device comprises a grounded element and an antenna element, wherein the antenna element is adjacent to one edge of the grounded element. The antenna element comprises a first metal part and a second metal part. The first metal part is provided with a first endpoint and a second endpoint, the first endpoint is coupled to a communication module through a capacitor element, and the second endpoint is coupled to the grounded element through a short circuit part. The second metal part is provided with a third endpoint and a fourth endpoint, the third endpoint is coupled to the communication module, and the fourth endpoint is an open end. The first metal part and the second metal part are adjacent but are not connected, and the projection, on the edge of the grounded element, of the first metal part and the projection, on the edge of the grounded element, of the second metal part do not overlap. The antenna element at least has the advantages of being simple in structure, easy to manufacture, low in profile property and the like.
Description
Technical field
The present invention about a kind of communication device, especially in regard to the dull and stereotyped communication device of one (Tablet Communication Device) and low profile antenna element (Low-profile Antenna Element, low form antenna element) thereof.
Background technology
Flourish in recent years along with mobile communication science and technology, the function of mobile communications device is more and more polynary and abundant.In order to meet market trend and consumer demand, the design of mobile communications device must meet frivolous characteristic, and has better information process and audiovisual entertainment usefulness.Screen size due to mobile communications device is increasing but its frame space is more and more less, and the space that can be used for designing antenna element will be limited to more.Therefore, in the confined space of mobile communications device, how designing the antenna element that low section also can contain band multiplex, is a major challenge of antenna designers in fact.
Summary of the invention
In order to solve the problem of prior art, the invention provides a kind of communication device, it comprises an antenna element.This antenna element comprises the bimetallic portion of separation and can be used for containing band multiplex.It is simple, easy to manufacture that this antenna element at least has structure, and low section characteristic etc. multiple advantages, and it is applicable to a panel computer, refers in particular to a thin flat computer with narrow frame interval.In certain embodiments, one antenna height of this antenna element is about 7mm, and the band multiplex (WWAN/LTE frequency band about between 824MHz to 960MHz, and about between 1710MHz to 2690MHz) of WWAN/LTE (Wireless Wide Area Network/Long Term Evolution) can be contained.
In the preferred embodiment, the invention provides a kind of communication device, comprising: an earth element; And an antenna element, be adjacent to an edge of this earth element, wherein this antenna element comprises: one first metal section, there is one first end points and one second end points, wherein this first end points is coupled to a communication module group via a capacity cell, and this second end points is coupled to this earth element via a short; And one second metal section, have one the 3rd end points and one the 4th end points, wherein the 3rd end points is coupled to this communication module group, and the 4th end points is an openend; Wherein this first metal section and this second metal section adjacent one another are but be not connected to each other; And wherein this first metal section has one first upright projection on this edge of this earth element, this second metal section has one second upright projection on this edge of this earth element, and this first upright projection and this second upright projection do not overlap each other.
In certain embodiments, this first end points and the 3rd end points mutually away from, and this second end points and the 4th end points are between this first end points and the 3rd end points.In certain embodiments, one first match circuit is more coupled between this capacity cell and this communication module group.In certain embodiments, one second match circuit is more coupled between the 3rd end points and this communication module group.In certain embodiments, this first metal section is the element through exciting generation one first frequency band, and this second metal section is the element through exciting generation one second frequency band, and the frequency of this second frequency band is higher than the frequency of this first frequency band.In certain embodiments, this first frequency band is about between 824MHz to 960MHz, and this second frequency band is about between 1710MHz to 2690MHz.In certain embodiments, this first metal section is roughly parallel to this edge of this earth element and extends.In certain embodiments, this first metal section is roughly a vertical bar shaped.In certain embodiments, this second metal section is roughly a reverse U shape.In certain embodiments, the length of this short is greater than the distance between this edge of this first metal section and this earth element.
In certain embodiments, this antenna element comprises the bimetallic portion with different load point, and these metal section control a low-frequency band and a high frequency band respectively.This design can simplify the structure of this antenna element, and easily reaches a low section characteristic.In addition, be coupled to this earth element for this second end points controlling this first metal section of this low-frequency band, make this edge of this first metal section and this earth element form a loop-like coil structures.Can effectively to reduce between this first metal section with this earth element mutual is coupled for this similar toroidal ring structure, thus reduce the height of this antenna element.Similarly, this second metal section for controlling this high frequency band also relatively easily reduces height.Therefore, the integrated antenna height of this antenna element of the present invention can reduce effectively, thus reaches a low profile antenna element design.
It should be noted that in certain embodiments, add this capacity cell by this first metal section, the present invention can shorten a resonant length of this first metal section effectively, thus reduces integrated antenna size.Compared to traditional design add there is a high inductance value an inductance element to reduce antenna size, this antenna element of the present invention can avoid the high ohmic loss because using this inductance element of this high inductance value to cause, therefore can solve the problem of the antenna efficiency reduction that traditional design often faces.In addition, in this antenna element, more can add this first match circuit to improve the impedance matching of this low-frequency band, thus reach the wideband operation of this antenna element.
In certain embodiments, the length of this antenna element is about 60mm, and the height of this antenna element is only about 7mm.In the case, this antenna element still can contain the low-frequency band of GSM850/900 and the high frequency band of GSM1800/1900/UMTS/LTE2300/LTE2500.In other words, low profile antenna element of the present invention at least can contain WWAN/LTE frequency band.
Accompanying drawing explanation
The schematic diagram of the communication device that Fig. 1 display is described according to a first embodiment of the present invention;
The return loss plot of the antenna element of the communication device that Fig. 2 display is described according to a first embodiment of the present invention;
The antenna efficiency figure of the antenna element of the communication device that Fig. 3 display is described according to a first embodiment of the present invention;
The schematic diagram of the communication device that Fig. 4 display is described according to a second embodiment of the present invention; And
The schematic diagram of the communication device that Fig. 5 display is described according to a third embodiment of the present invention.
Wherein, description of reference numerals is as follows:
100,400,500 ~ communication device;
11 ~ earth element;
The edge of 112 ~ earth element;
12 ~ antenna element;
13 ~ the first metal section;
131 ~ the first end points;
132 ~ the second end points;
14 ~ the second metal section;
141 ~ three end points;
142 ~ four end points;
15 ~ short;
16,46 ~ capacity cell;
17 ~ the first match circuits;
18 ~ communication module group;
21 ~ the first frequency bands;
22 ~ the second frequency bands;
23,24 ~ return loss plot;
31,32 ~ antenna efficiency curve;
57 ~ the second match circuits;
D1 ~ vertical range.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, cited below particularly go out specific embodiments of the invention, and coordinate institute's accompanying drawings, be described in detail below.
The schematic diagram of the communication device 100 that Fig. 1 display is 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 a notebook computer (Notebook Computer).Communication device 100 at least comprises earth element 11 and an antenna element 12.Earth element 11 can be a metal flat, and is arranged at (not shown) on a medium substrate, such as: a FR4 (Flame Retardant4) substrate.Antenna element 12 is adjacent to an edge 112 of earth element 11.Antenna element 12 comprises one first metal section 13 and one second metal section 14.First metal section 13 is roughly parallel to the edge 112 of earth element 11 and extends.In certain embodiments, the first metal section 13 is roughly a vertical bar shaped, and the second metal section 14 is roughly a reverse U shape.In other embodiments, any one of the first metal section 13 and the second metal section 14 also can be other shapes, such as: a L-shaped, a C font, a vertical bar shaped, a U-shaped, a S font, or an irregular shape.First metal section 13 and the second metal section 14 adjacent one another are but be not connected to each other.In more detail, first metal section 13 has one first upright projection on the edge 112 of earth element 11, and the second metal section 14 has one second upright projection on the edge 112 of earth element 11, wherein this first upright projection and this second upright projection do not overlap each other.First metal section 13 has one first end points 131 and one second end points 132, and the second metal section 14 has one the 3rd end points 141 and one the 4th end points 142, wherein the first end points 131 and the 3rd end points 141 mutually away from, and the second end points 132 and the 4th end points 142 are between the first end points 131 and the 3rd end points 141.In certain embodiments, communication device 100 more can comprise short 15, capacity cell 16,1 first match circuit 17, and a communication module group 18.First end points 131 of the first metal section 13 is coupled to communication module group 18 via capacity cell 16 and the first match circuit 17.It must be appreciated, the first match circuit 17 is select element, also can omit in other embodiments.Second end points 132 of the first metal section 13 is coupled to earth element 11 via short 15.3rd end points 141 of the second metal section 14 is coupled to communication module group 18.4th end points 142 of the second metal section 14 is an openend (Open End).Short 15 can comprise a sinuous metal structure, such as: this sinuous metal structure can be roughly a N font or a S font.In certain embodiments, the length of short 15 is greater than the vertical range D1 between the first metal section 13 and the edge 112 of earth element 11.Capacity cell 16 can be a chip capacitor (Chip Capacitor) or a distributed capacitor (Distributed Capacitor).First match circuit 17 can provide one first resistance value.In certain embodiments, the first match circuit 17 comprises one or more inductor and capacitor, such as: chip inducer (Chip Inductor) and chip capacitor.Capacity cell 16 and the first match circuit 17 all can be used for the resonant length of shortening first metal section 13, thus reduce the overall dimensions of antenna element 12.Communication module group 18 can be considered a signal source of antenna element 12, and this signal source is used for the first metal section 13 and the second metal section 14 of excitation antenna element 12, to produce a low-frequency band and a high frequency band respectively.Must be noted that communication device 100 more can comprise other elements, such as: a contact panel, a processor, a loud speaker, a battery, and a shell (not shown).
Return loss (Return Loss, the returns loss) figure of the antenna element 12 of the communication device 100 that Fig. 2 display is described according to a first embodiment of the present invention.In certain embodiments, the component size of communication device 100 and component parameters can as what follows.The length of earth element 11 is about 200mm, and width is about 150mm.The length of antenna element 12 is about 60mm, and width is about 7mm.Antenna element 12 has a low cross-section structure, and is formed on a FR4 (Flame Retardant4) substrate that thickness is 0.8mm.First metal section 13 of antenna element 12 excites generation one first frequency band 21 (please refer to the return loss plot 23 of Fig. 2), and the second metal section 14 of antenna element 12 excites generation one second frequency band 22 (please refer to the return loss plot 24 of Fig. 2).In the preferred embodiment, first frequency band 21 contains GSM850/900 frequency band (about between 824MHz to 960MHz), and the second frequency band 22 contains GSM1800/1900/UMTS/LTE2300/2500 frequency band (about between 1710MHz to 2690MHz).
Antenna efficiency (Antenna Efficiency) figure of the antenna element 12 of the communication device 100 that Fig. 3 display is described according to a first embodiment of the present invention.The antenna efficiency (comprise return loss) of antenna efficiency curve 31 representative antennas element 12 in GSM850/900 frequency band (about between 824MHz to 960MHz), and the antenna efficiency (comprise return loss) of antenna efficiency curve 32 representative antennas element 12 in GSM1800/1900/UMTS/LTE2300/2500 frequency band (about between 1710MHz to 2690MHz).As shown in Figure 3, the antenna efficiency of antenna element 12 in GSM850/900 frequency band is about between 42% to 55%, and the antenna efficiency of antenna element 12 in GSM1800/1900/UMTS/LTE2300/2500 frequency band is about between 70% to 85%, can realistic application need.
The schematic diagram of the communication device 400 that Fig. 4 display is described according to a second embodiment of the present invention.In a second embodiment, a capacity cell 46 of communication device 400 is arranged in an empty regions of the first metal section 13.That is capacity cell 46 and earth element 11 do not overlap each other.Capacity cell 46 can be a distributed capacitor.All the other features of the communication device 400 of the second embodiment are all similar to the communication device 100 of the first embodiment, so two embodiments all can reach similar operating effect.
The schematic diagram of the communication device 500 that Fig. 5 display is described according to a third embodiment of the present invention.In the third embodiment, communication device 500 more comprises one second match circuit 57, and the 3rd end points 141 of the second metal section 14 is more coupled to communication module group 18 via the second match circuit 57.Second match circuit 57 can provide one second resistance value, and it can differ from this first resistance value of the first match circuit 17.In certain embodiments, the second match circuit 57 comprises one or more inductor and capacitor, such as: chip inducer and chip capacitor.Second match circuit 57 also can be used for the resonant length of shortening second metal section 14, thus reduces the overall dimensions of antenna element 12.All the other features of the communication device 500 of the 3rd embodiment are all similar to the communication device 100 of the first embodiment, so two embodiments all can reach similar operating effect.
It should be noted that above-described component size, component shape, and frequency range all non-be restrictive condition of the present invention.Antenna designers can need to adjust these set points according to difference.
Ordinal number in this specification and claim, such as " first ", " second ", " the 3rd " etc., do not have the precedence relationship in order each other, it only has the different elements of same name for indicating differentiation two.
Though the present invention discloses as above with preferred embodiment; so itself and be not used to limit scope of the present invention; any those of ordinary skill in the art; without departing from the spirit and scope of the present invention; when doing a little change and retouching, therefore protection scope of the present invention is when being as the criterion depending on the accompanying claim person of defining.
Claims (10)
1. a communication device, comprising:
One earth element; And
One antenna element, be adjacent to an edge of this earth element, wherein this antenna element comprises:
One first metal section, have one first end points and one second end points, wherein this first end points is coupled to a communication module group via a capacity cell, and this second end points is coupled to this earth element via a short; And
One second metal section, have one the 3rd end points and one the 4th end points, wherein the 3rd end points is coupled to this communication module group, and the 4th end points is an openend;
Wherein this first metal section and this second metal section adjacent one another are but be not connected to each other; And
Wherein this first metal section has one first upright projection on this edge of this earth element, and this second metal section has one second upright projection on this edge of this earth element, and this first upright projection and this second upright projection do not overlap each other.
2. communication device as claimed in claim 1, wherein this first end points and the 3rd end points mutually away from, and this second end points and the 4th end points are between this first end points and the 3rd end points.
3. communication device as claimed in claim 1, wherein one first match circuit is more coupled between this capacity cell and this communication module group.
4. communication device as claimed in claim 1, wherein one second match circuit is more coupled between the 3rd end points and this communication module group.
5. communication device as claimed in claim 1, wherein this first metal section is the element through exciting generation one first frequency band, and this second metal section is the element through exciting generation one second frequency band, and the frequency of this second frequency band is higher than the frequency of this first frequency band.
6. communication device as claimed in claim 5, wherein this first frequency band is about between 824MHz to 960MHz, and this second frequency band is about between 1710MHz to 2690MHz.
7. communication device as claimed in claim 1, wherein this first metal section is roughly parallel to this edge of this earth element and extends.
8. communication device as claimed in claim 1, wherein this first metal section is roughly a vertical bar shaped.
9. communication device as claimed in claim 1, wherein this second metal section is roughly a reverse U shape.
10. communication device as claimed in claim 1, wherein the length of this short is greater than the vertical range between this edge of this first metal section and this earth element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286478.0A CN104283005A (en) | 2013-07-09 | 2013-07-09 | Communication device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310286478.0A CN104283005A (en) | 2013-07-09 | 2013-07-09 | Communication device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104283005A true CN104283005A (en) | 2015-01-14 |
Family
ID=52257653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310286478.0A Pending CN104283005A (en) | 2013-07-09 | 2013-07-09 | Communication device |
Country Status (1)
| Country | Link |
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| CN (1) | CN104283005A (en) |
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| CN107482312A (en) * | 2016-06-08 | 2017-12-15 | 宏碁股份有限公司 | Communicator with the ring antenna element of metal edge frame half |
| WO2018120773A1 (en) * | 2016-12-28 | 2018-07-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Antenna device for mobile terminal and mobile terminal |
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| CN1661855A (en) * | 2004-02-26 | 2005-08-31 | 松下电器产业株式会社 | Wireless device having antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107482312A (en) * | 2016-06-08 | 2017-12-15 | 宏碁股份有限公司 | Communicator with the ring antenna element of metal edge frame half |
| WO2018120773A1 (en) * | 2016-12-28 | 2018-07-05 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Antenna device for mobile terminal and mobile terminal |
| US10411358B2 (en) | 2016-12-28 | 2019-09-10 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Antenna device for mobile terminal and mobile terminal |
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Application publication date: 20150114 |