CN104425895A - Antenna structure and wireless communication device with antenna structure - Google Patents
Antenna structure and wireless communication device with antenna structure Download PDFInfo
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- CN104425895A CN104425895A CN201310383880.0A CN201310383880A CN104425895A CN 104425895 A CN104425895 A CN 104425895A CN 201310383880 A CN201310383880 A CN 201310383880A CN 104425895 A CN104425895 A CN 104425895A
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- radiant body
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Abstract
Provided is an antenna structure which comprises a feed-in part, a first grounding part, a second grounding part, a first radiating body, a second radiating body, a third radiating body and a fourth radiating body. The first radiating body and the second radiating body are connected with the feed-in part. The third radiating body and the fourth radiating body are connected with the second radiating body. The first grounding part and the second grounding part are arranged at the two opposite sides of the feed-in part in a spacing way so that signals can be fed in by the antenna structure via a coplanar waveguide mode. The invention also relates to a wireless communication device.
Description
Technical field
The present invention relates to a kind of antenna, particularly relate to the antenna structure of a kind of co-planar waveguide (Coplanar Waveguide, CPW) mode FD feed and there is the radio communication device of this antenna structure.
Background technology
Along with the development of wireless communication technology, people are more and more higher to the data of mobile network download rate request, so 3GPP (3
rdgeneration Partnership Project, 3GPP) tissue made 4G communication system of future generation, namely so-called Long Term Evolution (Long Term Evolution, LTE) mobile communication technology.LTE antenna will contain low frequency (791 ~ 960MHz) and high frequency (1710 ~ 2700MHz), how low frequency low frequency (791 ~ 960MHz) is integrated in the problem that LTE antenna structure is a suitable difficulty.
Summary of the invention
For above-mentioned the deficiencies in the prior art, be necessary to provide a kind of antenna structure working in multiple LTE frequency range.
Separately, there is a need to provide a kind of radio communication device with described antenna structure.
A kind of antenna structure, comprise feeding portion, the first grounding parts, the second grounding parts, the first radiant body, the second radiant body, the 3rd radiant body and the 4th radiant body, this first radiant body and the second radiant body are connected to feeding portion, and the 3rd radiant body and the 4th radiant body are connected to the second radiant body; This first grounding parts and the second grounding parts are disposed on the relative both sides of this feeding portion, to make this antenna structure by co-planar waveguide mode FD feed, this first radiant body, the second radiant body and the 3rd radiant body form one first current path, and this first current path inspires a low frequency modal; This first radiant body is coupled with the first grounding parts and inspires one first high frequency mode; This first current path frequency multiplication produces one second high frequency mode; This second radiant body, the 3rd radiant body and the 4th radiant body form one second current path, and this second current path inspires third high mode frequently.
A kind of radio communication device, comprise circuit board and described antenna structure, described circuit board comprises first surface and second surface, and described first surface and second surface are oppositely arranged and are parallel to each other, and described antenna structure is arranged at described second surface.
Described antenna structure is by CPW mode FD feed, this first current path inspires a low frequency modal, this first radiant body is coupled with the first grounding parts and inspires one first high frequency mode, this the first current path frequency multiplication produces one second high frequency mode, this second current path inspires third high mode frequently, thus making this antenna structure work in low frequency (704 ~ 960MHz) and high frequency (1710 ~ 2700MHz), working frequency range is wide, covers multiple communication system.
Accompanying drawing explanation
Fig. 1 is the three-dimensional assembly diagram of the radio communication device of better embodiment of the present invention.
Fig. 2 is the three-dimensional assembly diagram at another visual angle of radio communication device shown in Fig. 1.
The voltage standing wave ratio instrumentation plan that Fig. 3 is radio communication device shown in Fig. 1.
The radiation gain instrumentation plan that Fig. 4 is radio communication device shown in Fig. 1.
Main element symbol description
| Radio communication device | 100 |
| Circuit board | 10 |
| First surface | 11 |
| Second surface | 12 |
| Antenna structure | 30 |
| Feeding portion | 31 |
| First feed-in section | 311 |
| Second feed-in section | 312 |
| 3rd feed-in section | 313 |
| First grounding parts | 32 |
| First ground section | 321 |
| Second ground section | 322 |
| Second grounding parts | 33 |
| First radiant body | 34 |
| First linkage section | 341 |
| Second linkage section | 342 |
| 3rd linkage section | 343 |
| 4th linkage section | 344 |
| Second radiant body | 35 |
| Rectangular | 351 |
| Billet | 352 |
| 3rd radiant body | 36 |
| First adapter section | 361 |
| Second adapter section | 362 |
| 3rd adapter section | 363 |
| 4th radiant body | 37 |
| First extension | 371 |
| Second extension | 372 |
| 3rd extension | 373 |
Following embodiment will further illustrate the present invention in conjunction with above-mentioned accompanying drawing.
Embodiment
Refer to Fig. 1 and Fig. 2, the radio communication device 100 of better embodiment of the present invention comprises circuit board 10 and is arranged at the antenna structure 30 on circuit board 10.In the present embodiment, this antenna structure 30 works in low frequency (704 ~ 960MHz) and high frequency (1710 ~ 2700MHz).
Circuit board 10 comprises first surface 11 and second surface 12.First surface 11 is for the layout of components and parts, and this second surface 12 is headroom district.In the present embodiment, the rectangular plate body shape of circuit board 10, first surface 11 is parallel to second surface 12.This circuit board 10 is FR4 substrate, long for 121mm, wide be 60mm, thick be 1.6mm.
Antenna structure 30 is arranged at the second surface 12 of circuit board 10.This antenna structure 30 comprises feeding portion 31, first grounding parts 32, second grounding parts 33, first radiant body 34, second radiant body 35, the 3rd radiant body 36 and the 4th radiant body 37.In the present embodiment, this antenna structure 30 is seen on the whole, long for 21mm, wide be 60mm, thick be 1.6mm.
Feeding portion 31 is electrically connected to a signal source (not shown), for feed-in current signal.This first grounding parts 32 and the second grounding parts 33 are disposed on the relative both sides of feeding portion 31, to make this antenna structure 30 by CPW mode FD feed.In the present embodiment, this feeding portion 31 comprises the first feed-in section 311, the second feed-in section 312 and the 3rd feed-in section 313 that connect successively.This first feed-in section 311 is roughly in concave shape, and the width at two ends is greater than the width at middle part, and one end flushes in the edge of circuit board 10.This second feed-in section 312 is triangle roughly at right angles, and the 3rd feed-in section 313 is roughly in " U " shape.First feed-in section 311 is roughly parallel to the 3rd feed-in section 313 on the whole.The hypotenuse of this second feed-in section 312 is oppositely arranged towards the second grounding parts 33, right-angle side and the 3rd feed-in section 313 parallel interval.This first grounding parts 32 is roughly L-shaped, comprises the first ground section 321 and the second ground section 322.This first ground section 321 one end flushes in the edge of circuit board 10, and the other end is connected to the second ground section 322.The roughly rectangular shape of this second grounding parts 33.
First radiant body 34 is connected to feeding portion 31, and the first radiant body 34 and the first grounding parts 32 interval are arranged.In the present embodiment, this first radiant body 34 comprises the first linkage section 341, second linkage section 342, the 3rd linkage section 343 and the 4th linkage section 344.This first linkage section 341 is connected to the 3rd feed-in section 313 of feeding portion 31.This second linkage section 342 is vertically connected at the first linkage section 341.3rd linkage section 343 and the 4th linkage section 344 vertically extend by the second linkage section 342, and bearing of trend is contrary, and the width of the 3rd linkage section 343 is greater than the width of the 4th linkage section 344.
Second radiant body 35 is L-shaped, and one end is connected to the first radiant body 34 and is oppositely arranged with the 3rd feed-in section 313 parallel interval, and the other end is connected to the 3rd radiant body 36 and the 4th radiant body 37.Particularly, in the present embodiment, this second radiant body 35 is roughly L-shaped, and it comprises rectangular 351 and billet 352.These rectangular 351 one end are connected to the first linkage section 341 of the first radiant body 34, and the other end is vertically connected at billet 352.Rectangular 351 of second radiant body 35 vertically with on two perpendicular limits of the second linkage section 342 of the first radiant body 34 respectively by the first linkage section 341 of the first radiant body 34 extend, and namely rectangular 351 is vertical with the bearing of trend of the second linkage section 342.
3rd radiant body 36 comprises the first adapter section 361, second adapter section 362 and the 3rd adapter section 363.This first adapter section 361 perpendicular to the second radiant body 35 billet 352 and be oppositely arranged with rectangular 351 parallel interval.This second adapter section 362 one end is vertically connected at the first adapter section 361, and the other end is vertically connected at the 3rd adapter section 363.Described first adapter section 361, second adapter section 362 and the 3rd adapter section 363 are roughly in " U " shape.
4th radiant body 37 comprises the first extension 372, extension 371, second and the 3rd extension 373.This first extension 371 is vertically connected at the billet 352 of the second radiant body 35, and the first adapter section 361 of this first extension 371 and the 3rd radiant body 36 is located along the same line.The length of the first adapter section 361 is greater than the first extension 371.This one end, the second extension 372 is vertically connected at the first extension 371, and the other end is vertically connected at the 3rd extension 373.Described first extension 372, extension 371, second and the 3rd extension 373 form roughly in " U " shape structure.3rd extension 373 extends towards the 3rd adapter section 363 direction, and the 3rd extension 373 and the 3rd adapter section 363 interval are arranged, and the width of the 3rd adapter section 363 is greater than the width of the 3rd extension 373.
Current signal is by after feeding portion 31 feed-in, and the first radiant body 34 is coupled with the first grounding parts 32 and inspires one first high frequency mode; First radiant body 34, second radiant body 35 and the 3rd radiant body 36 form one first current path, make antenna structure 30 inspire a low frequency modal; Meanwhile, electric current produces frequency-doubled effect at the harmonic wave of the first current path, makes antenna structure 30 inspire one second high frequency mode; First radiant body 34, second radiant body 35 and the 4th radiant body 37 form one second current path, make antenna structure 30 inspire third high mode frequently.
In the present embodiment, this low frequency modal makes antenna structure 30 work in 704 ~ 960MHz, this the first high frequency mode makes antenna structure 30 work near 2170MHz, this the second high frequency mode makes antenna structure 30 work near 1900MHz, and this third high frequently mode makes antenna structure 30 work in 2500 ~ 2690MHz.
Refer to Fig. 3, be depicted as voltage standing wave ratio (the Voltage Standing Wave Ratio of antenna structure 30, VSWR) instrumentation plan, described antenna structure 30 all can meet Antenna Design requirement at low frequency (704 ~ 960MHz) and high frequency (1710 ~ 2700MHz) as seen from the figure.
Refer to Fig. 4, be depicted as the radiation gain instrumentation plan of antenna structure 30, described antenna structure 30 all can meet Antenna Design requirement at low frequency (704 ~ 960MHz) and high frequency (1710 ~ 2700MHz) as seen from the figure.
Described antenna structure 30 is by CPW mode FD feed, this first current path inspires a low frequency modal, this first radiant body 34 is coupled with the first grounding parts 32 and inspires one first high frequency mode, this the first current path frequency multiplication produces one second high frequency mode, this second current path inspires third high mode frequently, thus making this antenna structure 30 work in low frequency (704 ~ 960MHz) and high frequency (1710 ~ 2700MHz), working frequency range is wide, covers multiple communication system.
Claims (7)
1. an antenna structure, it is characterized in that: described antenna structure comprises feeding portion, the first grounding parts, the second grounding parts, the first radiant body, the second radiant body, the 3rd radiant body and the 4th radiant body, this first radiant body and the second radiant body are connected to feeding portion, and the 3rd radiant body and the 4th radiant body are connected to the second radiant body; This first grounding parts and the second grounding parts are disposed on the relative both sides of this feeding portion, to make this antenna structure by co-planar waveguide mode FD feed, this first radiant body, the second radiant body and the 3rd radiant body form one first current path, and this first current path inspires a low frequency modal; This first radiant body is coupled with the first grounding parts and inspires one first high frequency mode; This first current path frequency multiplication produces one second high frequency mode; This second radiant body, the 3rd radiant body and the 4th radiant body form one second current path, and this second current path inspires third high mode frequently.
2. antenna structure as claimed in claim 1, it is characterized in that: described first radiant body comprises the first linkage section, the second linkage section, the 3rd linkage section and the 4th linkage section, this first linkage section is connected to feeding portion, this second linkage section is vertically connected at the first linkage section, 3rd linkage section and the 4th linkage section vertically extend by the second linkage section, and bearing of trend is contrary, the width of the 3rd linkage section is greater than the width of the 4th linkage section.
3. antenna structure as claimed in claim 2, it is characterized in that: described second radiant body is L-shaped, this second radiant body comprises rectangular and billet, and this rectangular one end is connected to the first linkage section of the first radiant body, and the other end is vertically connected at billet.
4. antenna structure as claimed in claim 3, it is characterized in that: described 3rd radiant body comprises the first adapter section, the second adapter section and the 3rd adapter section, this first adapter section is perpendicular to the billet of the second radiant body, this the second adapter section one end is vertically connected at the first adapter section, the other end of this second adapter section is vertically connected at the 3rd adapter section, and described first adapter section, the second adapter section and the 3rd adapter section are in " U " shape.
5. antenna structure as claimed in claim 4, it is characterized in that: described 4th radiant body comprises the first extension, second extension and the 3rd extension, this the first extension is vertically connected at the billet of the second radiant body, and the first adapter section of this first extension and the 3rd radiant body is located along the same line, and the length of the first adapter section is greater than the first extension, this one end, the second extension is vertically connected at the first extension, the other end is vertically connected at the 3rd extension, described first extension, second extension and the 3rd extension are in " U " shape, 3rd extension extends towards the 3rd adapter section direction, and the 3rd extension and the 3rd adapter section interval are arranged, the width of the 3rd adapter section is greater than the width of the 3rd extension.
6. antenna structure as claimed in claim 1, it is characterized in that: this low frequency modal described makes antenna structure work in 704 ~ 960MHz, this the first high frequency mode makes antenna structure work near 2170MHz, this the second high frequency mode makes antenna structure work near 1900MHz, and this third high frequently mode makes antenna structure work in 2500 ~ 2690MHz.
7. a radio communication device, comprise circuit board, it is characterized in that: described radio communication device also comprises the antenna structure as described in any one of claim 1-6, described circuit board comprises first surface and second surface, described first surface and second surface are oppositely arranged and are parallel to each other, and described antenna structure is arranged at described second surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383880.0A CN104425895B (en) | 2013-08-29 | 2013-08-29 | Antenna structure and wireless communication device with the antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310383880.0A CN104425895B (en) | 2013-08-29 | 2013-08-29 | Antenna structure and wireless communication device with the antenna structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104425895A true CN104425895A (en) | 2015-03-18 |
| CN104425895B CN104425895B (en) | 2019-05-14 |
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ID=52974247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310383880.0A Expired - Fee Related CN104425895B (en) | 2013-08-29 | 2013-08-29 | Antenna structure and wireless communication device with the antenna structure |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6563466B2 (en) * | 2001-09-26 | 2003-05-13 | Ericsson Inc. | Multi-frequency band inverted-F antennas with coupled branches and wireless communicators incorporating same |
| CN101222086A (en) * | 2007-01-12 | 2008-07-16 | 鸿富锦精密工业（深圳）有限公司 | Printing type antenna |
| CN101853982A (en) * | 2009-04-03 | 2010-10-06 | 深圳富泰宏精密工业有限公司 | Multifrequency antenna and wireless communication device applying same |
| CN102195126A (en) * | 2010-03-05 | 2011-09-21 | 深圳富泰宏精密工业有限公司 | Multi-frequency antenna |
-
2013
- 2013-08-29 CN CN201310383880.0A patent/CN104425895B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6563466B2 (en) * | 2001-09-26 | 2003-05-13 | Ericsson Inc. | Multi-frequency band inverted-F antennas with coupled branches and wireless communicators incorporating same |
| CN101222086A (en) * | 2007-01-12 | 2008-07-16 | 鸿富锦精密工业（深圳）有限公司 | Printing type antenna |
| CN101853982A (en) * | 2009-04-03 | 2010-10-06 | 深圳富泰宏精密工业有限公司 | Multifrequency antenna and wireless communication device applying same |
| CN102195126A (en) * | 2010-03-05 | 2011-09-21 | 深圳富泰宏精密工业有限公司 | Multi-frequency antenna |
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| CN104425895B (en) | 2019-05-14 |
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