CN202352826U - Antenna and mobile communication terminal designed by means of antenna - Google Patents
Antenna and mobile communication terminal designed by means of antenna Download PDFInfo
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- CN202352826U CN202352826U CN2011204104887U CN201120410488U CN202352826U CN 202352826 U CN202352826 U CN 202352826U CN 2011204104887 U CN2011204104887 U CN 2011204104887U CN 201120410488 U CN201120410488 U CN 201120410488U CN 202352826 U CN202352826 U CN 202352826U
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Abstract
The utility model discloses an antenna and a mobile communication terminal designed by means of the antenna. The antenna is a double-layer route; two connecting points used for connecting circuit boards on the antenna are a feed point and a ground point; a section of ground wire is singly led out on the first layer of route and is connected with the ground point; the second layer of route is formed into a feed wire and is communicated with the feed point; and the two layers of routes are contacted and communicated through via holes. The antenna is designed into a space stereoscopic structural form of the two layers of routes, and the special ground wire is provided for the antenna and is used as reference ground of the antenna, so that the interference effect of metal around the antenna on the antenna receiving and transmitting radio signals is reduced, and the transmission distance and transmission rate of the radio signals are improved. The antenna can obviously improve the wireless sensitivity of the mobile communication terminal and optimize the receiving and transmitting performance of a system when applied to the design of the mobile communication terminal.
Description
Technical field
The utility model belongs to the wireless communication system technologies field, specifically, and the mobile communication terminal that relates to a kind of structural design of antenna and adopt the Antenna Design of said structure.
Background technology
Along with the development of mobile communication technology with popularize, panel computer becomes a kind of communication terminal electronic product that liked by the consumer gradually.With respect to traditional notebook computer, panel computer has advantages such as mobility is good, personalized by force, convenience is good.It integrates conversation, the wireless networking capabilities of office, amusement function and the mobile phone of traditional computer, makes people's life convenient, quick.
The producer that produces panel computer in the market has a lot, and the panel computer of developing is also varied on function and pattern, but nearly all panel computer product all can have bluetooth and/or WiFi function.WiFi is the english abbreviation of wireless fidelity, is meant " wireless compatibility authentication " at the category of WLAN, also is simultaneously a kind of Wireless Networking technology.At present, domestic WiFi focus is more and more, and coverage is more and more wider, and the WiFi online becomes more and more convenient.Enjoying easily simultaneously, many consumers have also found some problems of existing in the panel computer, for example: and use Bluetooth transmission file distance near, and the WiFi signal strength signal intensity is weak, speed of surfing the Internet is slow etc.Tracing it to its cause, we find, each panel computer manufacturer is in order to pursue better outward appearance and feel, and most panel computers all can adopt metal back cover and frame.The large tracts of land of metal is used to the Antenna Design in the product and has been brought very big difficulty and high challenge, owing to can't eliminate the influence of metal material to antenna, so cause the wireless receiving decreased performance of panel computer, has had a strong impact on user's experience.
Based on this, how promoting bluetooth and/or WiFi wireless receiving performance has become one of subject matter of each panel computer and the urgent need solution of smart mobile phone manufacturer.
Summary of the invention
The purpose of the utility model is to provide a kind of structural design of antenna, to reduce the influence that antenna receives peripheral metal material, improves the wireless receiving performance of communication class electronic product.
For solving the problems of the technologies described above, the utility model adopts following technical scheme to be achieved:
A kind of antenna, said antenna is a two-layer wiring, two tie points that are used for the connecting circuit plate on the antenna are respectively feedback point and place, on the ground floor cabling, walk out one section ground wire separately, connect described place; Second layer cabling forms feeder line, is communicated with described feedback point; Two-layer cabling is communicated with through the via hole contact.
For second layer cabling and being connected of feedback point adopting dual mode:
A kind ofly be, an end of said second layer cabling be directly connected on the described feedback point that the other end contacts through the ground wire of via hole with the ground floor cabling.
For bandwidth and the conversion efficiency that satisfies antenna, the length of said second layer cabling should be at least antenna the radio signal wavelength that will receive 1/4.
Second kind is, on said ground floor cabling, walks out one section feeder line separately, is connected between second layer cabling and the feedback point.
Concrete connected mode can for: an end of said second layer cabling is contacted through the ground wire of via hole with the ground floor cabling; The other end contacts with an end of feeder line in the ground floor cabling through via hole, and the other end of feeder line connects described feedback point in the ground floor cabling.
Preferably, the feeder line in the said ground floor cabling and the length sum of second layer cabling should be at least antenna the radio signal wavelength that will receive 1/4, with bandwidth and the conversion efficiency that satisfies antenna.
Further, described feedback point, place preferably with the ground floor cabling with layer.
Preferably, said antenna is Bluetooth antenna or WiFi antenna, is processed by FPC.
Based on above-mentioned antenna structure; The utility model also provides a kind of mobile communication terminal that adopts said Antenna Design; Comprise circuit board and antenna, said antenna is designed to two-layer wiring, and two tie points that are used for the connecting circuit plate on the antenna are respectively feedback point and place; On the ground floor cabling, walk out one section ground wire separately, connect described place; Second layer cabling forms feeder line, is communicated with described feedback point; Two-layer cabling is communicated with through the via hole contact.
Further; The bonnet part of said mobile communication terminal is a metal material; Remainder is nonmetallic materials; Said antenna sticks on the inboard of nonmetallic materials bonnet, the feedback point of antenna and place after said bonnet is seated respectively with the holding wire and the corresponding connection of ground wire of mobile communication terminal internal circuit board.
Preferably, said mobile communication terminal can be panel computer or mobile phone etc.
Compared with prior art; The advantage and the good effect of the utility model are: the utility model is through being designed to antenna the space multistory version of two-layer wiring; And a special ground wire is provided for antenna; As the reference ground of antenna, thereby reduce the interference effect that this antenna of metal pair around the antenna produces when reception and transmitted radio signal, increased the transmission range and the transmission rate of radio signal.Said antenna applications in the design of mobile communication terminal, can significantly be promoted the no line sensitivity of mobile communication terminal, the reception of optimization system and emitting performance.
After the detailed description in conjunction with advantages the utility model execution mode, other characteristics of the utility model and advantage will become clearer.
Description of drawings
Fig. 1 is the structural representation of a kind of embodiment of existing mobile communication terminal bonnet;
Fig. 2 is the trace-diagram of a kind of embodiment of traditional antenna;
Fig. 3 is the trace-diagram of a kind of embodiment of the antenna that provides of the utility model;
Fig. 4 is the trace-diagram of the another kind of embodiment of the antenna that provides of the utility model.
Embodiment
Describe in detail below in conjunction with the embodiment of accompanying drawing the utility model.
In the design of mobile communication terminal, no line sensitivity is a very important index, is related to the distance of communication and the stability problem of signal.Improve the no line sensitivity of system, the design of antenna is most important.In the appearance design of present a lot of mobile communication terminals, texture is touched in order to pursue external styling more attractive in appearance and hand by manufacturer, often need adopt the positions such as frame and bonnet of metal material design mobile communication terminal.The use of large-area metal material also makes the operational environment of terminal inner antenna become worse and worse, has caused for reception and the emitting performance of antenna and seriously influences.
With present panel computer is that example describes.Present panel computer much all is designed with metal edge frame 1 and part for the bonnet 2 of metal material, and is as shown in Figure 1.Among Fig. 1, the A of bonnet part is processed by metal material, and remainder B is processed by nonmetallic materials, such as nonmetallic materials such as plastics.Wherein, the bonnet A of metal material is often as the battery flat bonnet, and the run user dismounting is to change battery; The then often fixing assembling of the bonnet B of nonmetallic materials does not generally allow the user to dismantle, and the antenna of panel computer just is laid in the corresponding position of bonnet B with nonmetallic materials usually, for example is laid in the frame of broken lines zone 4 as shown in Figure 1.On the bonnet B of the nonmetallic materials of the antenna left and right sides, sound chamber 3 can also be set further, with external playing audio signal.
For mobile communication terminals such as present panel computer and mobile phones, its complete machine thickness is often pursued Bao Yuehao more, requires usually to be limited in about 10mm.After removing the thickness of display screen, casing and circuit board like this, antenna also has only 3mm many to the distance of circuit board.In addition, all be metal material around the antenna, so operational environment is very poor, bring very big difficulty for the design of antenna.
Present embodiment is that example specifies with the bluetooth or the WiFi antenna of 2.4GHz frequency range.
Because the metal around the antenna is more, so the antenna cabling is easy to form resonance with the peripheral part metal at a plurality of frequencies, thereby influences reception and the emitting performance of antenna at the 2.4GHz frequency.With performance in the existing Antenna Design scheme relatively preferably loop aerial be example; Its cabling is as shown in Figure 2; On network analyzer, test, though this loop aerial its voltage standing wave ratio in the 2.4-2.84GHz frequency range can reach about 2 owing to receive the influence of metal on every side; Its actual testing efficiency is very low, has only about 10%.
In order to improve the performance of antenna; Reduce it and receive the influence of metal environment on every side; Present embodiment has proposed the Antenna Design thought of two-layer wiring, like Fig. 3, shown in Figure 4, promptly adopts two-layer cabling to form described antenna; And two tie points of antenna are defined as feedback point 8 and place 9 respectively; Be used for the holding wire of mobile communication terminal internal circuit board and the corresponding connection of ground wire (for bluetooth or WiFi antenna, should be specifically with circuit board on Bluetooth circuit or the corresponding connection of WiFi circuit), with the transmission radio signal.
Present embodiment is walked out one section ground wire 5 specially on the ground floor cabling of antenna (among Fig. 3, Fig. 4 represent with solid line ground floor cabling), connect described place 9; Second layer cabling (being represented by dotted lines second layer cabling among Fig. 3, Fig. 4) is formed feeder line 6; And be communicated with described feedback point 8; Two-layer cabling connects through via hole 10 contact, and the bluetooth/WiFi antenna that forms thus has been owing to there has been a special ground wire, thus for antenna provide one with reference to; So just reduce the interference and the influence of this antenna generation of other metal pairs on every side, and then helped promoting the wireless receiving and dispatching performance and the stability of mobile communication terminal.
The antenna of present embodiment can adopt the cathode copper material to process, and preferably adopts flexible PCB FPC to be made.Ground wire 5 for the ground floor cabling can be designed to multiple shape; Horizontal U type for example as shown in Figure 3 or approximate horizontal Y type as shown in Figure 4 etc., concrete shape can be that antenna space size, shape and the test effect comprehensive consideration reserved are definite according to mobile communication terminal inside.Two tie points as said antenna---feedback point 8 and place 9, both can with the ground floor cabling with layer, such as all being arranged on upper epidermis; Also can with second layer cabling with the layer, such as all being arranged on down the top layer.Present embodiment preferably leaks copper at upper surface, forms described feedback point 8 and place 9, like Fig. 3, shown in Figure 4.Place 9 is connected with difform ground wire 5 for ease, can walk one section straight ground wire 12 and be connected between described ground wire 5 and the place 9; 6 of the feeder lines on top layer can be connected through via hole 10 the one of which end with the ground wire that is positioned at upper epidermis 5 contacts for being positioned at down, and the mode that the other end of feeder line 6 then can directly weld through via hole or employing is connected with the feedback point that is positioned at upper epidermis 8.Because in theory; When the length of antenna and its wavelength of the radio signal that will receive when suitable; Antenna to transmit and receive conversion efficiency the highest; Therefore, the length of antenna can according to its to transmit and receive signal frequency (can converse the wavelength of corresponding radio signal through the centre frequency of the radio signal that transmits and receives) decide.But in fact; In the antenna environment of mobile communication terminals such as present mobile phone and panel computer; Because the whole wavelength that receives the restriction in terminal inner space, the length of antenna will reach radio signal is impossible basically, therefore; Present embodiment preferably with the feeder line Design of length of antenna antenna the radio signal wavelength that will receive at least 1/4; Feeder line 6 Design of length that are about to be positioned at lower surface said antenna the radio signal wavelength that will receive at least 1/4, thereby satisfy lay space and the beamwidth of antenna and require in, can access relative high conversion rate.For the bluetooth or the WiFi antenna of 2.4GHz frequency range, the length of said feeder line 6 can design about 31.2mm, to obtain the higher relatively conversion efficiency that transmits and receives.
Certainly; Also can in the ground floor cabling, walk one section feeder line 7 specially,, be connected between the feeder line 6 of the feedback point 8 and the second layer like Fig. 3, shown in Figure 4; Specifically can adopt via hole to realize the connection of two-layer feeder line; An end that is about to second layer feeder line 6 is connected with ground wire 5 contacts of ground floor cabling through via hole 10, and the other end of feeder line 6 is connected with feeder line 7 contacts of ground floor cabling through via hole 11, and the feeder line 7 through the ground floor cabling connects described feedback point 8 then.When adopting this Antenna Design mode; For under the prerequisite that satisfies limited antenna laying space; Obtain the higher relatively conversion efficiency that transmits and receives, preferably with the total length of the feeder line 7 of feeder line of the second layer 6 and ground floor cabling be arranged on antenna the radio signal wavelength that will receive at least 1/4.For the bluetooth or the WiFi antenna of 2.4GHz frequency range, preferably the total length with two sections feeder lines 6,7 designs about 31.2mm, so that the antenna that forms can obtain relative high conversion rate.
For the total length that makes feeder line 6 and feeder line 7 meets design requirement in the antenna laying spatial dimension that mobile communication terminal is reserved; Can feeder line 6 be designed to linear or circuitous shaped form etc.; Concrete shape can confirm that present embodiment is not limited in above giving an example according to the actual laying situation appropriate design of mobile communication terminal.
The antenna of the stereochemical structure form of using above-mentioned two-layer wiring design is laid in the panel computer product; Inboard such as the bonnet B that sticks on nonmetallic materials; In the frame of broken lines for example shown in Figure 1 zone 4, and making two tie points of antenna---feedback point 8 and place 9 just can contact connection with the holding wire on the circuit board with ground wire after bonnet B is assembled on the casing; Thereby realize reception and the emission of panel computer, accomplish communication task radio signal.
The antenna of the three-dimensional Wiring structure of employing that present embodiment designed is tested on network analyzer; The standing-wave ratio of antenna can reach about 2 in the 2.4-2.84GHz frequency range; Efficient also can reach more than 40%; Compare the antenna of conventional monolayers Wiring structure, the antenna of present embodiment receives on every side that the influence of metal obviously reduces, and wireless performance obviously improves.
Adopt the bluetooth/WiFi antenna of individual layer annular Wiring structure form design to test comparison with tradition on the bluetooth/WiFi antenna of the employing two-layer wiring version design that present embodiment proposed, shown in its result can see table:
| Antenna type | The distance of listening to the music through bluetooth | The WiFi signal strength signal intensity of the same focus of same position | The WiFi speed of surfing the Internet of the same focus of same position |
| The individual layer loop aerial | About 30 meters | About-85dBm | 2-5Mbps |
| The two-layer wiring antenna | 50-60 rice | About-79dBm | 11Mbps |
Test result by last table can clearly be seen that: the panel computer that uses the antenna of two-layer wiring version; When listening to the music through bluetooth; Maximum distance can reach more than 50 meters; And using the panel computer of traditional individual layer loop aerial, the maximum distance of listening to the music through bluetooth has only about 30 meters.On the WiFi performance, use same focus, panel computer is placed on same position tests, use signal strength signal intensity that the panel computer of two-layer wiring antenna searches this focus about-79dBm, speed of surfing the Internet can reach more than the 11Mbps; And the signal strength signal intensity that the panel computer that uses the individual layer loop aerial searches out has only-85dBm, and speed of surfing the Internet has only 5Mbps at most.
Through clearly explanation of reality test, the antenna of the two-layer wiring structure that present embodiment proposed receives the influence of metal on every side littler, and performance will be better than the antenna of conventional monolayers cabling conceptual design far away.
Certainly, except bluetooth or WiFi antenna can adopt the above-mentioned two-layer wiring structural design mode, same being suitable for for the mobile communication antenna that is used to link mobile communications network.The antenna of this structure not only can design in the panel computer product, equally also can design in other mobile communication equipments such as smart mobile phone, to improve the wireless performance of equipment.
Should be noted that; The above only is a kind of preferred implementation of the utility model; For those skilled in the art; Under the prerequisite that does not break away from the utility model principle, can also make some improvement and retouching, these improvement and retouching also should be regarded as the protection range of the utility model.
Claims (10)
1. antenna, it is characterized in that: said antenna is a two-layer wiring, two tie points that are used for the connecting circuit plate on the antenna are respectively feedback point and place, on the ground floor cabling, walk out one section ground wire separately, connect described place; Second layer cabling forms feeder line, is communicated with described feedback point; Two-layer cabling is communicated with through the via hole contact.
2. antenna according to claim 1 is characterized in that: an end of said second layer cabling connects described feedback point, and the other end contacts through the ground wire of via hole with the ground floor cabling.
3. antenna according to claim 2 is characterized in that: the length of said second layer cabling be at least antenna the radio signal wavelength that will receive 1/4.
4. antenna according to claim 1 is characterized in that: on said ground floor cabling, walk out one section feeder line separately, be connected between second layer cabling and the feedback point.
5. antenna according to claim 4; It is characterized in that: an end of said second layer cabling contacts through the ground wire of via hole with the ground floor cabling; The other end contacts with an end of feeder line in the ground floor cabling through via hole, and the other end of feeder line connects described feedback point in the ground floor cabling.
6. antenna according to claim 5 is characterized in that: the feeder line in the said ground floor cabling and the length sum of second layer cabling be at least antenna the radio signal wavelength that will receive 1/4.
7. according to each described antenna in the claim 1 to 6, it is characterized in that: described feedback point, place and ground floor cabling are with layer.
8. according to each described antenna in the claim 1 to 6, it is characterized in that: said antenna is Bluetooth antenna or WiFi antenna, is processed by FPC.
9. a mobile communication terminal is characterized in that: be provided with like the described antenna of each claim in the claim 1 to 8.
10. mobile communication terminal according to claim 9; It is characterized in that: the bonnet part of said mobile communication terminal is metal material; Remainder is nonmetallic materials; Said antenna sticks on the inboard of nonmetallic materials bonnet, the feedback point of antenna and place after said bonnet is seated respectively with the holding wire and the corresponding connection of ground wire of mobile communication terminal internal circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204104887U CN202352826U (en) | 2011-10-25 | 2011-10-25 | Antenna and mobile communication terminal designed by means of antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204104887U CN202352826U (en) | 2011-10-25 | 2011-10-25 | Antenna and mobile communication terminal designed by means of antenna |
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| Publication Number | Publication Date |
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| CN202352826U true CN202352826U (en) | 2012-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011204104887U Expired - Fee Related CN202352826U (en) | 2011-10-25 | 2011-10-25 | Antenna and mobile communication terminal designed by means of antenna |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509857A (en) * | 2011-10-25 | 2012-06-20 | 青岛海信移动通信技术股份有限公司 | Antenna and mobile communication terminal using antenna design |
| CN107453036A (en) * | 2016-05-10 | 2017-12-08 | 为昇科科技股份有限公司 | embedded feed-in antenna structure |
-
2011
- 2011-10-25 CN CN2011204104887U patent/CN202352826U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102509857A (en) * | 2011-10-25 | 2012-06-20 | 青岛海信移动通信技术股份有限公司 | Antenna and mobile communication terminal using antenna design |
| CN102509857B (en) * | 2011-10-25 | 2015-03-04 | 青岛海信移动通信技术股份有限公司 | Antenna and mobile communication terminal using antenna design |
| CN107453036A (en) * | 2016-05-10 | 2017-12-08 | 为昇科科技股份有限公司 | embedded feed-in antenna structure |
| CN107453036B (en) * | 2016-05-10 | 2021-04-13 | 为昇科科技股份有限公司 | Embedded feed-in antenna structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20191025 |