CN104134869A - Antenna structure and wireless communication device with same - Google Patents
Antenna structure and wireless communication device with same Download PDFInfo
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- CN104134869A CN104134869A CN201310155215.6A CN201310155215A CN104134869A CN 104134869 A CN104134869 A CN 104134869A CN 201310155215 A CN201310155215 A CN 201310155215A CN 104134869 A CN104134869 A CN 104134869A
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- radiant body
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- 238000004891 communication Methods 0.000 title claims abstract description 23
- 230000005284 excitation Effects 0.000 claims description 2
- 125000006850 spacer group Chemical group 0.000 claims description 2
- 239000002184 metal Substances 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
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Abstract
The invention provides an antenna structure which comprises a feed part, an earthing part, a main antenna, an auxiliary antenna and a metal ring, wherein the main antenna comprises a first radiator and a second radiator; the first radiator and the second radiator are electrically connected with the feed part, and located on the two opposite sides of the feed part respectively; the auxiliary antenna and the main antenna are arranged at an interval; the auxiliary antenna comprises a third radiator and a fourth radiator; the third radiator and the fourth radiator are electrically connected with the earthing part, and located on the two opposite sides of the earthing part respectively; and the metal ring is earthed and connected with one end, opposite to the auxiliary antenna, of the earthing part. The antenna structure is small in size and can receive multi-band signals. In addition, the invention further provides a wireless communication device with the antenna structure.
Description
Technical field
The present invention relates to a kind of antenna structure, relate in particular to a kind of radio communication device that receives the antenna structure of a plurality of frequency ranges and there is this antenna structure.
Background technology
In radio communication device, be used for transmitting, reception radio wave to transmit, to exchange the antenna assembly of radio data signal, beyond doubt one of most important assembly in radio communication device.The communication system of various use different operating frequency bands and the continuous appearance of application in recent years, makes the design of antenna towards the antenna structure development of containing a plurality of band system band.In order to ensure radio communication device, in the various wireless communication system of using different operating frequency band, all can carry out signal transmission, this antenna assembly must be able to be received and dispatched the signal of multiple different frequency.On the other hand, antenna structure general structure is comparatively complicated, but because the outward appearance of Anneta module also trends towards frivolous and microminiaturization, makes Antenna Design except broadband, also needs to possess the feature that has miniaturization simultaneously.How under the prerequisite that does not increase radio communication device volume, to make antenna there is the characteristic in broadband, become the challenge of Ge Jia antenna manufacturer maximum.
Summary of the invention
In view of this, be necessary to provide a kind of multi-band signal and little antenna structure of volume of receiving.
Separately, be necessary to provide a kind of radio communication device with this antenna structure.
A kind of antenna structure, it comprises feeding portion, grounding parts, main antenna, inferior antenna and becket, this main antenna comprises the first radiant body and the second radiant body, and the first radiant body and the second radiant body are all electrically connected to feeding portion, and lays respectively at the relative both sides of feeding portion; This antenna and main antenna interval arrange, and comprise the 3rd radiant body and the 4th radiant body, and the 3rd radiant body and the 4th radiant body are all electrically connected to grounding parts, and lay respectively at the relative both sides of grounding parts; This becket ground connection is also connected in grounding parts one end of time antenna relatively.
A kind of radio communication device, it comprises an antenna structure, this antenna structure comprises feeding portion, grounding parts, main antenna, inferior antenna and becket, this main antenna comprises the first radiant body and the second radiant body, the first radiant body and the second radiant body are all electrically connected to feeding portion, and lay respectively at the relative both sides of feeding portion; This antenna and main antenna interval arrange, and comprise the 3rd radiant body and the 4th radiant body, and the 3rd radiant body and the 4th radiant body are all electrically connected to grounding parts, and lay respectively at the relative both sides of grounding parts; This becket ground connection is also connected in grounding parts one end of time antenna relatively.
Described antenna structure comprises a plurality of radiant bodies, and produces resonance mode by becket and the electromagnetic coupled between radiant body of radio communication device, to do not increasing under the volume of radio communication device, this antenna structure can be received and dispatched the wireless signal of a plurality of frequency ranges.
Accompanying drawing explanation
Fig. 1 is the schematic perspective view of the antenna structure of better embodiment of the present invention;
Fig. 2 is the return loss schematic diagram of the antenna structure shown in Fig. 1;
Fig. 3 is the antenna efficiency schematic diagram of the antenna structure shown in Fig. 1.
Main element symbol description
| Antenna structure | 100 |
| Main antenna | 200 |
| Inferior antenna | 300 |
| Feeding portion | 10 |
| Grounding parts | 20 |
| The first radiant body | 30 |
| The second radiant body | 40 |
| The first extension | 41 |
| The second extension | 42 |
| The 3rd extension | 43 |
| The 3rd radiant body | 50 |
| The first linkage section | 51 |
| The second linkage section | 52 |
| The 3rd linkage section | 53 |
| The 4th radiant body | 60 |
| The first adapter section | 61 |
| The second adapter section | 62 |
| The 3rd adapter section | 63 |
| The 4th adapter section | 64 |
| Becket | 70 |
Following embodiment further illustrates the present invention in connection with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1, the present invention's better embodiment provides a kind of antenna structure 100, and it is applied in the radio communication device (not shown) such as mobile phone, panel computer, for transmitting/receiving wireless signal.
This antenna structure 100 comprises feeding portion 10, grounding parts 20, main antenna 200, inferior antenna 300 and becket 70.Main antenna 200 is electrically connected to feeding portion 10.Inferior antenna 300 is electrically connected to becket 70 by grounding parts 20, becket 70 ground connection.Main antenna 200 arranges with time antenna 300 spaces.
This feeding portion 10 is electrically connected for the signal feed-in point (not shown) on the circuit board with radio communication device, thinks antenna structure 100 feed-in electric currents.In the present embodiment, feeding portion 10 is L shaped, and one end is electrically connected perpendicular to circuit board place plane and with the signal feed-in point on circuit board, and the other end and the plane parallel setting of circuit board place are also electrically connected main antenna 200.
This grounding parts 20 is electrically connected time antenna 300 and is electrically connected with becket 70, so that antenna structure 100 is by becket 70 ground connection.
Main antenna 200 is a unipole antenna, and itself and circuit board parallel interval arrange, and comprise the first radiant body 30 and the second radiant body 40.The first radiant body 30 and the second radiant body 40 are all electrically connected to feeding portion 10, and lay respectively at the relative both sides of feeding portion 10.
This first radiant body 30 is I shape, is the rectangular plates of a rectangle.This first radiant body 30 be vertically connected at one end that feeding portion 10 is parallel to circuit board.
This second radiant body 40 is plane U-shaped, comprises the first extension 41, the second extension 42 and the 3rd extension 43 that connect successively.Extend to the opposite side of feeding portion 10 one end that this first extension 41 is connected with feeding portion 10 by the first radiant body 30.This second extension 42 is vertically connected between the first extension 41 and the 3rd extension 43.The second extension 42 and feeding portion 10 are vertically connected at respectively the two opposite sides of the opposite end of the first extension 41.The 3rd extension 43 and the first extension 41 parallel interval settings.
Inferior antenna 300 is microstrip line, comprises the 3rd radiant body 50 and the 4th radiant body 60.The 3rd radiant body 50 and the 4th radiant body 60 are all electrically connected to grounding parts 20, and lay respectively at the relative both sides of grounding parts 20.
The 3rd radiant body 50 roughly spacer ring arranges around the periphery of the second radiant body 40 of main antenna 200, comprises the first linkage section 51, the second linkage section 52 and the 3rd linkage section 53 that connect successively.This first linkage section 51 is perpendicular to main antenna 200 place plane layouts, and between main antenna 200 and circuit board.It is L shaped that the first linkage section 51 is plane, and one end is connected in grounding parts 20 and extends in the outside of the 3rd extension 43 and the second extension 42 junctions to be parallel to the bearing of trend of the 3rd extension 43, and other end plane extends vertically up to main antenna 200 place planes.This second linkage section 52 and the 3rd linkage section 53 are arranged at main antenna 200 place planes.It is L shaped that the second linkage section 52 is plane, and one end connects the first linkage section 51 parallel interval in the second extension 42 arranged outside, and the other end is parallel and be opposite in the first linkage section 51 and arrange.The 3rd linkage section 53 is bar shaped sheet, and parallel interval is arranged at this first extension 41 outsides.The width of the 3rd linkage section 53 is greater than the second linkage section 52, and its inner side is with respect to more close the first extension 41 of the second linkage section 52, and its outside is with second linkage section 52 is concordant is connected.The lateral border of the second extension 42 is just aimed in the second linkage section 52 and the junction of the 3rd linkage section 53.
The 4th radiant body 60 is connected in grounding parts 20 with respect to a side of the 3rd radiant body 50.The 4th radiant body 60 comprises the first adapter section 61, the second adapter section 62, the 3rd adapter section 63 and the 4th adapter section 64 connecting successively.This first adapter section 61 is connected in this grounding parts 20, and this first adapter section 61 with this first linkage section 51 on same straight line.This second adapter section 62 is connected in this first adapter section 61, and with the first adapter section 61 place planes and the vertical setting between two of main antenna 200 place planes.The 3rd adapter section 63 and the second adapter section 62 are positioned at same plane, vertically connect the second adapter section 62 and extend to main antenna 200 place planes to be connected with the 4th adapter section 64.The 4th adapter section 64 is positioned at main antenna 200 place planes, by the end of the 3rd adapter section 63, to be parallel to the direction of the first radiant body 30, is extended between the first adapter section 61 and the first radiant body 30.In this enforcement, the length of the 4th adapter section 64 is less than the 3rd extension 43.
This becket 70 is a part for radio communication device housing, concrete, can be the metal edge frame of radio communication device.This becket 70 is around the circuit board setting of radio communication device, and is electrically connected to the earth point of circuit board.This becket 70 is connected in grounding parts 20 one end of time antenna 300 relatively, and arranges with main antenna 200, inferior antenna 300 intervals.This becket 70 is perpendicular to circuit board place plane layout.
When described antenna structure 100 work, electric current is after feeding portion 10 enters, under the electromagnetic coupled of main antenna 200 and time antenna 300, can along the first radiant body 30, the second radiant body 40, the 3rd radiant body 50, the 4th radiant body 60 and becket 70, obtain respectively the current path of different length, make antenna structure 100 obtain a plurality of working bands, be described as follows.
When maximum current is flowed through the first radiant body 30, the 4th radiant body 60 resonance frequencys multiplication, its resonant excitation goes out the first high-frequency resonant mode that centre frequency is 2500MHz, thereby makes antenna structure 100 work in LTE frequency range.
When maximum current is flowed through the second radiant body 40, inspiring centre frequency is the second high-frequency resonant mode of 1800MHz, thereby makes antenna structure work in DCS/PCSLTE frequency range.
When maximum current is flowed through the 3rd radiant body 50, inspiring centre frequency is the third high frequency resonance mode of 2000MHz, thereby makes antenna structure 100 work in WCDMA frequency range.
When maximum current is flowed through the 3rd radiant body 50, the 4th radiant body 60 of time antenna 300 and becket 70, inspiring centre frequency is the low-frequency resonant mode of 800MHz, thereby makes antenna structure 100 work in GSM/EGSM frequency range.
Refer to Fig. 2, be depicted as return loss (Return Loss, RL) the measurement result schematic diagram of antenna structure 100 of the present invention.As seen from Figure 2, this antenna structure 100 all can meet antenna work designing requirement under the centre frequency of 800MHz, 1800MHz, 2000MHz and 2500MHz.
Refer to Fig. 3, be depicted as the antenna efficiency measurement result schematic diagram of antenna structure 100 of the present invention.As seen from Figure 3, this antenna structure 100 all reaches more than 60% in the antenna efficiency of low frequency operation frequency band (800MHz ~ 1000MHz), and on average has 70% in high-frequency work frequency range (1700MHz ~ 22000MHz) antenna efficiency.
Antenna structure 100 of the present invention comprises a plurality of radiant bodies, and produce a plurality of resonance modes by the becket 70 of radio communication device and the electromagnetic coupled between radiant body, to do not increasing under the volume of radio communication device, this antenna structure 100 can be received and dispatched the wireless signal of a plurality of frequency ranges.
Claims (10)
1. an antenna structure, comprise feeding portion and grounding parts, described feeding portion is for feed-in electric current, it is characterized in that: described antenna structure also comprises main antenna, inferior antenna and becket, this main antenna comprises the first radiant body and the second radiant body, the first radiant body and the second radiant body are all electrically connected to feeding portion, and lay respectively at the relative both sides of feeding portion; This antenna and main antenna interval arrange, and comprise the 3rd radiant body and the 4th radiant body, and the 3rd radiant body and the 4th radiant body are all electrically connected to grounding parts, and lay respectively at the relative both sides of grounding parts; This becket ground connection is also connected in grounding parts one end of time antenna relatively.
2. antenna structure as claimed in claim 1, is characterized in that: when maximum current is flowed through the first radiant body, and the 4th radiant body resonance frequency multiplication, its resonant excitation goes out the first high-frequency resonant mode; When maximum current is flowed through the second radiant body, inspire the second high-frequency resonant mode; When maximum current is flowed through the 3rd radiant body, inspire third high resonance mode frequently; When maximum current is flowed through the 3rd radiant body, the 4th radiant body of time antenna and becket, inspire low-frequency resonant mode.
3. antenna structure as claimed in claim 2, is characterized in that: this main antenna is unipole antenna, and the first radiant body is rectangular plates, is vertically connected at one end of feeding portion.
4. antenna structure as claimed in claim 2, it is characterized in that: this second radiant body and the first radiant body are positioned at same plane, comprise the first extension, the second extension and the 3rd extension that connect successively, this first extension, the second extension and the 3rd extension form the structure roughly taking the shape of the letter U.
5. antenna structure as claimed in claim 4, it is characterized in that: this first extension is connected in feeding portion, this first extension is identical with the bearing of trend of this first radiant body, this second extension is connected between the first extension and the 3rd extension, and with the first extension with the 3rd extension is vertical is connected.
6. antenna structure as claimed in claim 2, is characterized in that: the 3rd radiant body roughly spacer ring arranges around the periphery of the second radiant body of main antenna.
7. antenna structure as claimed in claim 6, it is characterized in that: the 3rd radiant body comprises the first linkage section connecting successively, the second linkage section and the 3rd linkage section, this first linkage section is perpendicular to main antenna place plane layout, and between main antenna and circuit board, it is L shaped that the first linkage section is plane, this second linkage section and the 3rd linkage section are arranged at main antenna place plane, it is L shaped that the second linkage section is plane, the 3rd linkage section is bar shaped sheet, parallel interval is arranged at this first extension outside, the width of the 3rd linkage section is greater than the second linkage section, its inner side is with respect to more close the first extension of the second linkage section.
8. antenna structure as claimed in claim 7, it is characterized in that: the 4th radiant body comprises the first adapter section connecting successively, the second adapter section, the 3rd adapter section and the 4th adapter section, this first adapter section is connected in this grounding parts, this second adapter section is connected in this first adapter section, and with the first adapter section place plane and the vertical setting between two of main antenna place plane, the 3rd adapter section and the second adapter section are positioned at same plane, vertically connect the second adapter section and extend to main antenna place plane and be connected with the 4th adapter section, the 4th adapter section is positioned at main antenna place plane, end by the 3rd adapter section extends between the first adapter section and the first radiant body to be parallel to the direction of the first radiant body.
9. antenna structure as claimed in claim 2, it is characterized in that: the centre frequency of this first high-frequency resonant mode is 2500MHz, the centre frequency of the second high-frequency resonant mode is 1800MHz, the third high frequently centre frequency of resonance mode is 2000MHz, and the centre frequency of low-frequency resonant mode is 800MHz.
10. a radio communication device, is characterized in that: this radio communication device comprises the antenna structure described in any one in claim 1 ~ 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155215.6A CN104134869B (en) | 2013-04-30 | 2013-04-30 | Antenna structure and wireless communication device with the antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310155215.6A CN104134869B (en) | 2013-04-30 | 2013-04-30 | Antenna structure and wireless communication device with the antenna structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104134869A true CN104134869A (en) | 2014-11-05 |
| CN104134869B CN104134869B (en) | 2019-11-01 |
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ID=51807457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310155215.6A Expired - Fee Related CN104134869B (en) | 2013-04-30 | 2013-04-30 | Antenna structure and wireless communication device with the antenna structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN104134869B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107681249A (en) * | 2016-07-21 | 2018-02-09 | 深圳富泰宏精密工业有限公司 | Antenna structure and the radio communication device with the antenna structure |
| JP2018537037A (en) * | 2015-11-27 | 2018-12-13 | エージーシー グラス ユーロップＡｇｃ Ｇｌａｓｓ Ｅｕｒｏｐｅ | Multi-band antenna composed of two two-dimensional parts and glass panel printed with the antenna |
| CN111129703A (en) * | 2018-10-30 | 2020-05-08 | 广达电脑股份有限公司 | Mobile device |
| CN111755811A (en) * | 2019-03-28 | 2020-10-09 | 国巨电子（中国）有限公司 | Dual band antenna |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519978A (en) * | 2002-12-16 | 2004-08-11 | �ƶ��������LK����˾ | Antenna for flat radio device |
| US20080316121A1 (en) * | 2007-06-21 | 2008-12-25 | Hobson Phillip M | Wireless handheld electronic device |
| CN101740852A (en) * | 2008-11-05 | 2010-06-16 | 启碁科技股份有限公司 | Broadband plane antenna |
| US20120218163A1 (en) * | 2011-02-25 | 2012-08-30 | Kin-Lu Wong | Mobile communication device and antenna structure thereof |
| CN103036583A (en) * | 2011-10-08 | 2013-04-10 | 宏碁股份有限公司 | Communication electronic device and antenna structure thereof |
-
2013
- 2013-04-30 CN CN201310155215.6A patent/CN104134869B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1519978A (en) * | 2002-12-16 | 2004-08-11 | �ƶ��������LK����˾ | Antenna for flat radio device |
| US20080316121A1 (en) * | 2007-06-21 | 2008-12-25 | Hobson Phillip M | Wireless handheld electronic device |
| CN101740852A (en) * | 2008-11-05 | 2010-06-16 | 启碁科技股份有限公司 | Broadband plane antenna |
| US20120218163A1 (en) * | 2011-02-25 | 2012-08-30 | Kin-Lu Wong | Mobile communication device and antenna structure thereof |
| CN103036583A (en) * | 2011-10-08 | 2013-04-10 | 宏碁股份有限公司 | Communication electronic device and antenna structure thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018537037A (en) * | 2015-11-27 | 2018-12-13 | エージーシー グラス ユーロップＡｇｃ Ｇｌａｓｓ Ｅｕｒｏｐｅ | Multi-band antenna composed of two two-dimensional parts and glass panel printed with the antenna |
| CN107681249A (en) * | 2016-07-21 | 2018-02-09 | 深圳富泰宏精密工业有限公司 | Antenna structure and the radio communication device with the antenna structure |
| CN107681249B (en) * | 2016-07-21 | 2019-12-20 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with same |
| CN111129703A (en) * | 2018-10-30 | 2020-05-08 | 广达电脑股份有限公司 | Mobile device |
| CN111755811A (en) * | 2019-03-28 | 2020-10-09 | 国巨电子（中国）有限公司 | Dual band antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104134869B (en) | 2019-11-01 |
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Address after: 518109 F3 building, Foxconn science and Technology Industrial Park, Longhua Town, Shenzhen, Guangdong, A, China Applicant after: Shenzhen Futaihong Precision Industry Co.,Ltd. Applicant after: CHIUN MAI COMMUNICATION SYSTEMS, INC. Address before: 518109 F3 building, Foxconn science and Technology Industrial Park, Longhua Town, Shenzhen, Guangdong, A, China Applicant before: Shenzhen Futaihong Precision Industry Co.,Ltd. Applicant before: Chi Mei Communication Systems, Inc. |
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| GR01 | Patent grant | ||
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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: 20191101 |