CN203521611U - Coupled feeding multi-frequency antenna - Google Patents
Coupled feeding multi-frequency antenna Download PDFInfo
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- CN203521611U CN203521611U CN201320623698.3U CN201320623698U CN203521611U CN 203521611 U CN203521611 U CN 203521611U CN 201320623698 U CN201320623698 U CN 201320623698U CN 203521611 U CN203521611 U CN 203521611U
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- keypad
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Abstract
The utility model discloses a coupled feeding multi-frequency antenna, which comprises a feed radiation unit, a parasitic unit, a grounding unit, a parasitic extension unit and a feed cable. The feed radiation unit comprises a feed radiation unit and a feed point; the feed cable is respectively connected with the grounding unit and the feed point; the grounding unit is connected with the parasitic unit; and the parasitic unit is connected with the parasitic extension unit. The parasitic extension unit is used to serve as one part of the antenna and coupling of each part of the antenna is used, the multi-frequency antenna design demands in a relatively complicated environment can be realized, the occupied space of the wireless communication terminal antenna is saved, a new antenna design idea is provided with for a designer, and the debugging problem of the wireless communication terminal in complicated antenna environment can be well solved. The coupled feeding multi-frequency antenna can be widely used for design of various antennas.
Description
Technical field
The utility model relates to antenna, relates in particular to a kind of coupling feed multifrequency antenna.
Background technology
GSM900:Global System for Mobile Communications, i.e. global system for mobile communications.
DCS1800:Digital Cellular System at 1800MHz, 1800MHz Digital Cellular System.
LTE:Long Term Evolution, Long Term Evolution, herein a kind of 4G standard of middle finger.
At present, the application of the built-in multifrequency antenna of wireless communication terminal is more and more extensive, and standard becomes increasingly complex, and required frequency range also develops into even more wide-band of present 3G full range and LTE full range by original GSM900/DCS1800.Simultaneously, update due to communication product, Market competition, make some communication product miniaturizations and function be mostly inexorable trend, so interiors of products layout must be very compact, therefore antenna can utilize space to diminish, and utilizing the components and parts of antenna periphery to realize antenna performance is quite desirable selection.
Some wireless communication terminals of existing design, its environment is simple, volume is slightly large, context of antenna design is relatively good, the components and parts of periphery all have a segment distance apart from antenna, and the form that antenna adopts so all belongs to IFA, PIFA and Monopole form substantially, and the antenna of these several forms is easily subject to the impact of environment and changes performance, when running into the larger applied environment of the wireless communication terminal applied environment of some more complicated or spatial limitation, can very big degree limit the radianting capacity of these several antennas.
Utility model content
In order to solve the problems of the technologies described above, the purpose of this utility model is to provide that a kind of space utilization degree is little, radiance good, environmental suitability is strong.
The technical scheme that the utility model adopts is:
A kind of coupling feed multifrequency antenna, it comprises feed radiating element, parasitic element, ground unit, parasitic extension apparatus and feeder cable, described feed radiating element comprises feed radiating element and feedback point, described feeder cable is connected with feedback point with ground unit respectively, described ground unit is connected with parasitic element, and described parasitic element is connected with parasitic extension apparatus.
Preferably, described parasitic extension apparatus is keypad, display panel, data interface board or Audio Interface.
Preferably, also comprise primary radiation circuit board, described feed radiating element and parasitic element are arranged on primary radiation circuit board, between described feed radiating element and parasitic element, form gap.
Preferably, described parasitic extension apparatus is four layers of keypad, the ground floor of described four layers of keypad and the 4th layer are ground plane, by via hole by the ground floor of four layers of keypad and the 4th layer of conducting, described parasitic element is provided with the first Lu Tong district, on described keypad, be provided with the second Lu Tong district, described the first Lu Tong district is connected with the second Lu Tong district is corresponding.
Preferably, described ground unit is ground connection Copper Foil, and described primary radiation circuit board comprises San Lutong district, the Si Lutong district He Wulu copper district for being connected with ground connection Copper Foil, and described Si Lutong district He Wulu copper district is all connected with parasitic element.
Preferably, described the first Lu Tong district is connected by Copper Foil or conductive fabric correspondence with the second Lu Tong district.
Preferably, described feeder cable is coaxial cable, and described coaxial cable comprises inner core and skin, and described inner core is connected with feedback point, and described skin is connected with ground unit.
Preferably, described skin is connected with ground unit by San Lutong district.
The beneficial effects of the utility model are:
The utility model utilizes parasitic extension apparatus as a part for antenna, utilize the coupling of each part of antenna, realized and relatively under complex environment, met multifrequency antenna designing requirement, saved taking up room of wireless communication terminal antenna, for designer provides a kind of new Antenna Design thinking, solved well the debugging problem of wireless communication terminal when antenna environment is complicated.
In addition, the utility model, by adopting keypad as parasitic extension apparatus, has reasonably utilized the space of keypad, is not affecting the radiance that has strengthened antenna in other function situation of wireless communication terminal; Primary radiation circuit board by ground connection Copper Foil can realize with wireless communication terminal " " good connection.
The utility model can be widely used in various Antenna Designs.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
Fig. 1 is the structural representation of a kind of embodiment of the utility model.
Embodiment
It should be noted that, in the situation that not conflicting, embodiment and the feature in embodiment in the application can combine mutually.
As shown in Figure 1, a kind of coupling feed multifrequency antenna, it comprises feed radiating element 11, parasitic element 12, ground unit, parasitic extension apparatus and feeder cable, described feed radiating element 11 comprises feed radiating element 11 and feedback point 111, described feeder cable is connected with feedback point 111 with ground unit respectively, described ground unit is connected with parasitic element 12, and described parasitic element 12 is connected with parasitic extension apparatus.
In this embodiment, described parasitic extension apparatus is four layers of keypad 20.Obvious, can be also display panel, data interface board or Audio Interface etc.The ground floor of described four layers of keypad 20 and the 4th layer are ground plane, by via hole by the ground floor of four layers of keypad 20 and the 4th layer of conducting, described parasitic element 12 is provided with the first Lu Tong district 121, on described keypad 20, be provided with the second Lu Tong district, described the first Lu Tong district 121 is connected with the second Lu Tong district is corresponding.Keypad 20 is by electric conducting material, as Copper Foil or conductive fabric etc. is connected conducting with the parasitic element 12 on primary radiation circuit board 10.Described feed radiating element 11 and parasitic element 12 are arranged on primary radiation circuit board 10, between described feed radiating element 11 and parasitic element 12, form gap 13.On primary radiation circuit board 10, comprise feed radiating element 11, parasitic element 12 and some ground connection positions.Described ground unit is ground connection Copper Foil 30, described primary radiation circuit board 10 comprises San Lutong district 101, the 102 He Wulu copper districts 103, Si Lutong district for being connected with ground connection Copper Foil 30, and 102 He Wulu copper districts 103, described Si Lutong district are all connected with parasitic element 12.Ground connection Copper Foil 30 in other circuit of antenna and wireless communication terminal " " conduction is connected.Can, by the gap 13 between change feed radiating element 11 and parasitic element 12 to increase the band bandwidth of antenna, by change ground connection Copper Foil 30 contact positions and keypad 20 earthing positions, realize frequency range and shift.Ground connection Copper Foil 30 is connected with primary radiation circuit board 10 by welding manner.Described feeder cable is coaxial cable, and described coaxial cable comprises inner core and skin, and described inner core is connected with feedback point 111, and described skin is connected with ground unit.Described skin is connected with ground unit by San Lutong district 101.
In the present embodiment, coupling feed multifrequency antenna is applied in the utility model design and is applied in ground plane area and is greater than in wireless communication terminal more than 200mm * 100mm, ground connection Copper Foil 30 need to in wireless communication terminal " " by electric conducting material, be connected.In wireless communication terminal, also comprise radio-frequency module, coupling feed multifrequency antenna is connected to wireless telecommunications radio-frequency module by coaxial cable, and signal is by coaxial cable feed-in radio-frequency module.Primary radiation circuit board 10 has two parts, is respectively feed radiating element 11 and parasitic element 12, and parasitic element 12 is connected with keypad 20 conductings.Sample one, on primary radiation circuit board 10, feed radiating element 11 generates two different resonance from keypad 20.Wherein, feed radiating element 11 determines high-frequency resonant frequency, and the length of feed radiating element 11 free space wavelength corresponding with it is directly proportional, and is inversely proportional to the material dielectric constant of feed radiating element 11; The decision low-frequency resonant frequency of keypad 20, the i.e. length of low-frequency resonant frequency and keypad 20 and relevant with the tie point position of primary radiation circuit board 10.Antenna can produce according to intercoupling between feed radiating element 11, keypad 20 and parasitic element 12 bypass current of different length, thereby produces multiband.
The present embodiment utilization coupling feed principle, ingenious combination one pole adds passive antenna form, produces a high-frequency resonant (2.6GHz-2.7GHz) on the microstrip line by feed radiating element 11; Recycle peripheral keypad 20 with on primary radiation circuit board 10 " " be connected, low frequency place produces a resonance (790MHz-862MHz); In addition, can draw another parasitic element 12 on primary radiation circuit board 10, its electrical length can encourage and produce another high-frequency resonant (1710MHz-1880MHz); Can, by changing the spacing between keypad 20 and feed radiating element 11, make high frequency can obtain good bandwidth in addition.
The present embodiment produces the bypass current of different length according to intercoupling between feed radiating element 11, keypad 20 and parasitic element 12, thereby produces multiband; By adjusting the length of feed radiating element 11, keypad 20 and parasitic element 12, the grounding connection point position of primary radiation circuit board 10 and keypad 20, is exactly the gap 13 between three in addition, can realize frequency range and shift, and bandwidth increase consequently covers multiband.
The utility model utilizes parasitic extension apparatus as a part for antenna, utilize the coupling of each part of antenna, realized and relatively under complex environment, met multifrequency antenna designing requirement, saved taking up room of wireless communication terminal antenna, for designer provides a kind of new Antenna Design thinking, solved well the debugging problem of wireless communication terminal when antenna environment is complicated.
In addition, the utility model, by adopting keypad 20 as parasitic extension apparatus, has reasonably utilized the space of keypad 20, is not affecting the radiance that has strengthened antenna in other function situation of wireless communication terminal; Primary radiation circuit board 10 can be realized with the good of ground end of wireless communication terminal and being connected by ground connection Copper Foil 30.
More than that better enforcement of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent variations or replacement under the prerequisite without prejudice to the utility model spirit, and the distortion that these are equal to or replacement are all included in the application's claim limited range.
Claims (8)
1. a coupling feed multifrequency antenna, it is characterized in that, it comprises feed radiating element, parasitic element, ground unit, parasitic extension apparatus and feeder cable, described feed radiating element comprises feed radiating element and feedback point, described feeder cable is connected with feedback point with ground unit respectively, described ground unit is connected with parasitic element, and described parasitic element is connected with parasitic extension apparatus.
2. a kind of coupling feed multifrequency antenna according to claim 1, is characterized in that, described parasitic extension apparatus is keypad, display panel, data interface board or Audio Interface.
3. a kind of coupling feed multifrequency antenna according to claim 2, is characterized in that, also comprise primary radiation circuit board, described feed radiating element and parasitic element are arranged on primary radiation circuit board, between described feed radiating element and parasitic element, form gap.
4. according to a kind of coupling feed multifrequency antenna described in claims 1 to 3 any one, it is characterized in that, described parasitic extension apparatus is four layers of keypad, the ground floor of described four layers of keypad and the 4th layer are ground plane, by via hole by the ground floor of four layers of keypad and the 4th layer of conducting, described parasitic element is provided with the first Lu Tong district, is provided with the second Lu Tong district on described keypad, and described the first Lu Tong district is connected with the second Lu Tong district is corresponding.
5. a kind of coupling feed multifrequency antenna according to claim 4, it is characterized in that, described ground unit is ground connection Copper Foil, described primary radiation circuit board comprises San Lutong district, the Si Lutong district He Wulu copper district for being connected with ground connection Copper Foil, and described Si Lutong district He Wulu copper district is all connected with parasitic element.
6. a kind of coupling feed multifrequency antenna according to claim 4, is characterized in that, described the first Lu Tong district is connected by Copper Foil or conductive fabric correspondence with the second Lu Tong district.
7. according to a kind of coupling feed multifrequency antenna described in claim 1,2,3,5 or 6, it is characterized in that, described feeder cable is coaxial cable, and described coaxial cable comprises inner core and skin, and described inner core is connected with feedback point, and described skin is connected with ground unit.
8. a kind of coupling feed multifrequency antenna according to claim 5, is characterized in that, described skin is connected with ground unit by San Lutong district.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623698.3U CN203521611U (en) | 2013-10-10 | 2013-10-10 | Coupled feeding multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623698.3U CN203521611U (en) | 2013-10-10 | 2013-10-10 | Coupled feeding multi-frequency antenna |
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| Publication Number | Publication Date |
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| CN203521611U true CN203521611U (en) | 2014-04-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320623698.3U Expired - Fee Related CN203521611U (en) | 2013-10-10 | 2013-10-10 | Coupled feeding multi-frequency antenna |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785414A (en) * | 2017-03-20 | 2017-05-31 | 合肥联宝信息技术有限公司 | Coupled antenna |
| CN107707702A (en) * | 2017-11-15 | 2018-02-16 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN108364566A (en) * | 2018-01-19 | 2018-08-03 | 常州信息职业技术学院 | A kind of smart electronics bulletin board system |
| CN111788612A (en) * | 2018-12-06 | 2020-10-16 | 深圳市彩源光电有限公司 | Automobile data recorder |
-
2013
- 2013-10-10 CN CN201320623698.3U patent/CN203521611U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106785414A (en) * | 2017-03-20 | 2017-05-31 | 合肥联宝信息技术有限公司 | Coupled antenna |
| CN107707702A (en) * | 2017-11-15 | 2018-02-16 | 维沃移动通信有限公司 | A kind of mobile terminal |
| CN108364566A (en) * | 2018-01-19 | 2018-08-03 | 常州信息职业技术学院 | A kind of smart electronics bulletin board system |
| CN111788612A (en) * | 2018-12-06 | 2020-10-16 | 深圳市彩源光电有限公司 | Automobile data recorder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518102 Guangdong city of Shenzhen province Baoan District Xixiang Iron Street Gang Road oyster industry Industrial Park 1 building, 3 floor Patentee after: SHENZHEN VLG WIRELESS TECHNOLOGY Co.,Ltd. Address before: 518108, Guangdong, Shenzhen, Baoan District Xixiang street, iron Gang Road oyster industry park 1, 3 floors Patentee before: SHENZHEN VLG WIRELESS TECHNOLOGY Co.,Ltd. |
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| 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: 20140402 Termination date: 20211010 |