CN101494320A - Tri-frequency antenna - Google Patents
Tri-frequency antenna Download PDFInfo
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- CN101494320A CN101494320A CNA2008100051559A CN200810005155A CN101494320A CN 101494320 A CN101494320 A CN 101494320A CN A2008100051559 A CNA2008100051559 A CN A2008100051559A CN 200810005155 A CN200810005155 A CN 200810005155A CN 101494320 A CN101494320 A CN 101494320A
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Abstract
The invention discloses a tri-band antenna, which comprises a feed component, a first radiation component, a second radiation component, a third radiation component and a grounding component. The first radiation component is connected with a first side of a first end of the feed component. A second end of the second radiation component is connected with a second side of the first end of the feed component. The third radiation component is connected with a third end of the second radiation component. The grounding component is arranged at two sides of the feed component.
Description
Technical field
The relevant a kind of antenna of the present invention, particularly relevant a kind of three-frequency antenna.
Background technology
In recent years because the integration of wireless communication standard and mobile device is becoming tight close more, such as mobile phone, hand held Game device, MP3, MP4, PMP, mobile TV, GPS, peripheral control unit etc., integrate all one after another and comprise Wi-Fi at interior many wireless standards, these devices are also more and more stronger to the demand of flush type antenna, and therefore microminiaturized Antenna Design will become the necessary condition of whole embedded mobile application.
Except microminiaturization, slimming also is indispensable designer trends, at the 3C Product of selling fast on the market at present, as mobile phone, handheld-type intelligent type device and consumption electronic products etc., fashion, frivolous product become gradually the consumer the purchase index, therefore imbed circuit board in microminiaturization, slimming, the integration, or even intelligent, multifrequencyization, all will be the following Antenna Design main flow of using that moves.
So-called miniature antenna is also referred to as microstrip antenna, mainly is new trend hand-held in order more to conform with, that the hand-held device application demand is brought.In general, miniature antenna is plate (Planar) design mostly, or array flat board (ArrayPlanar) kenel of using the multi-disc flat board simultaneously, and different designs such as implementation slotted eye (Slot) type are also arranged in addition.
In general, be applied to the antenna of miniature configuration, inverted F shaped antenna (PIFA), unipole antenna and dipole antenna are arranged, mobile phone for example, being applied in miniature antenna configuration more general on the mobile phone mainly is dipole antenna, though still belong to dipole antenna in configuration, but for reduced volume, sizable change has all been arranged in appearance, for example be varied to circle, ellipse, annular, rectangle, triangle etc., so as to making antenna element more short and small frivolous.
In addition, not integrally formed with application circuit, and adopt extra additional miniature antenna configuration aspect, SMD antenna, the antenna of surface mount are also arranged, or helical antenna.What merit attention is, the more and more popular in recent years planar inverted F-shape antenna of using in the embedded practice, and this kind antenna has short-circuit structure, and it is nearly 1/4th to allow the resonance length of antenna taper to from 1/2nd, and antenna is further dwindled.
Fig. 1 shows the schematic diagram of known dual-band antenna, and wherein dual-band antenna 10 comprises a feeding portion 101, a high-frequency radiation part 102, a low frequency radiation portion 103 and a grounding parts 104.High-frequency radiation part 102 is extended by feeding portion 101, and low frequency radiation portion 103 is extended by feeding portion 101, and grounding parts 104 is connected in low frequency radiation portion 103 and high-frequency radiation part 102 simultaneously.
Yet, because the new line day by day of WIMAX technology, dual-band antenna do not apply gradually and use, and then reflect the importance of three-frequency antenna, therefore a kind of operation frequency range, volume three-frequency antenna little, simple in structure with broadness has become the important goal that following antenna technology develops.
Summary of the invention
In view of this, the invention provides a kind of three-frequency antenna, it has a plurality of slit settings and first Department of Radiation, second Department of Radiation or the 3rd Department of Radiation are the three-frequency antenna that the gradual change form designs, and is beneficial to impedance matching and increases the operation frequency range.
The invention provides a kind of three-frequency antenna, it comprises a feeding portion, one first Department of Radiation, one second Department of Radiation, one the 3rd Department of Radiation and a grounding parts.First Department of Radiation connects one first side of first end of feeding portion.One second end of second Department of Radiation connects one second side of first end of feeding portion.The 3rd Department of Radiation connects one the 3rd end of second Department of Radiation.Grounding parts is positioned at the feeding portion both sides.
Wherein, first Department of Radiation can be mid frequency radiated portion.
Wherein, second Department of Radiation can be high-frequency radiation part.
Wherein, the 3rd Department of Radiation can be low frequency radiation portion.
This three-frequency antenna can also comprise one first slit, and is arranged between grounding parts and the feeding portion.
This three-frequency antenna also comprises a coupling groove (Matching slot), is connected with above-mentioned first slit, and between above-mentioned first slit and grounding parts.
This three-frequency antenna can also comprise one second slit, and is arranged between the grounding parts and second Department of Radiation.
This three-frequency antenna can comprise also that one the 3rd slit is arranged between grounding parts and the 3rd Department of Radiation, and is connected with second slit.
Wherein, first Department of Radiation is extended by first side connection of described first end of feeding portion, and width increases gradually.
Wherein, second Department of Radiation is extended by second side connection of described first end of feeding portion, and width increases gradually.
Wherein, the 3rd Department of Radiation is extended by second end connection of second Department of Radiation, and width increases gradually.
Wherein, feeding portion, first Department of Radiation, second Department of Radiation, the 3rd Department of Radiation and grounding parts are copline.
In sum, three-frequency antenna provided by the invention, it has a plurality of slit settings and first Department of Radiation, second Department of Radiation or the 3rd Department of Radiation are the three-frequency antenna that the gradual change form designs, and is beneficial to impedance matching and increases the operation frequency range.
Description of drawings
For above-mentioned purpose of the present invention, feature and advantage can be become apparent, below conjunction with figs. is elaborated to preferred embodiment of the present invention, wherein:
Fig. 1 is the schematic diagram that shows known dual-band antenna.
Fig. 2 A is the schematic diagram according to three-frequency antenna first embodiment of the present invention.
Fig. 2 B is the partial schematic diagram of first embodiment of the invention.
Fig. 3 A is the schematic diagram according to three-frequency antenna second embodiment of the present invention.
Fig. 3 B is the partial schematic diagram of second embodiment of the invention.
Fig. 4 A is the schematic diagram according to three-frequency antenna the 3rd embodiment of the present invention.
Fig. 4 B is the partial schematic diagram of third embodiment of the invention.
Embodiment
Fig. 2 A is the schematic diagram according to three-frequency antenna first embodiment of the present invention, Fig. 2 B is the partial schematic diagram of first embodiment of the invention, please consult Fig. 2 A and Fig. 2 B simultaneously, wherein three-frequency antenna 20 comprises a feeding portion 201, one first Department of Radiation 202, one second Department of Radiation 203, one the 3rd Department of Radiation 204, two grounding parts 205,205 ', 1 first slit 206, one second slit 208 and one the 3rd slit 209.Above-mentioned three-frequency antenna 20 is the copline antenna, and its each assembly division is as follows:
First Department of Radiation 202 connects one first side 201a of first end of feeding portion 201, one second end 203a of second Department of Radiation 203 connects one second side 201b of first end of feeding portion 201, and the 3rd Department of Radiation 204 connects one the 3rd end 203b of second Department of Radiation 203, therefore the 3rd Department of Radiation 204 and second Department of Radiation 203 have the subregion to overlap mutually, can use for two signals in different frequency bands, for example be high frequency and low frequency at this.Must notice that in addition first Department of Radiation 202 is wide more the closer to the width of end, the design of this kind gradual change form can make the operation frequency range of first Department of Radiation 202 increase.
Grounding parts 205,205 ' lays respectively at feeding portion 201 both sides, and grounding parts 205,205 ' and feeding portion 201 be connected in the circuit board (not shown) via a connector 210.
First slit 206 is arranged between grounding parts 205 ' and the feeding portion 201, and can design coupling groove 207 and first slit 206 and be interconnected, and makes and mate groove 207 between first slit 206 and grounding parts 205 '.This kind first slit 206 and the setting that is interconnected of mating groove 207 can be beneficial to the impedance matching of feeding portion 201, to increase the operation frequency range.
Second slit 208 is arranged between the grounding parts 205 and second Department of Radiation 203, and the 3rd slit 209 is arranged between grounding parts 205 and the 3rd Department of Radiation 204, and is interconnected with second slit 208.The setting that is connected of this kind second slit 208 and the 3rd slit 209 can increase the operation frequency range of second Department of Radiation 203, and be beneficial to the impedance matching of second Department of Radiation 203.
In Fig. 2 A, P1, P2, P3 difference representation signal are in the flow path of first Department of Radiation 202, second Department of Radiation 203 and the 3rd Department of Radiation 204, wherein first Department of Radiation 202 can be mid frequency radiated portion, and second Department of Radiation 203 can be high-frequency radiation part, and the 3rd Department of Radiation 204 can be low frequency radiation portion.First Department of Radiation 202 can be mid frequency radiated portion, and its operational frequency bands can contain the interval, broadband of 3.3G to 3.8G.Second Department of Radiation 203 can be high-frequency radiation part, and its operational frequency bands can contain the interval, broadband of 5G to 6G.The 3rd Department of Radiation 204 can be low frequency radiation portion, and its operational frequency bands can contain the interval, broadband of 2.4G to 2.5G.
Fig. 3 A is the schematic diagram according to three-frequency antenna second embodiment of the present invention, Fig. 3 B is the partial schematic diagram of second embodiment of the invention, please consult Fig. 3 A and Fig. 3 B simultaneously, wherein three-frequency antenna 30 comprises a feeding portion 301, one first Department of Radiation 302, one second Department of Radiation 303, one the 3rd Department of Radiation 304, two grounding parts 305,305 ', 1 first slit 306, one second slit 308 and one the 3rd slit 309.Above-mentioned three-frequency antenna 30 is the copline antenna, and its each assembly division is as follows:
First Department of Radiation 302 connects one first side 301a of first end of feeding portion 301, one second end 303a of second Department of Radiation 303 connects one second side 301b of first end of feeding portion 301, and the 3rd Department of Radiation 304 connects one the 3rd end 303b of second Department of Radiation 303, and therefore the 3rd Department of Radiation 304 and second Department of Radiation 303 have the subregion to overlap mutually.Must notice that in addition second Department of Radiation 303 is wide more the closer to the width of end, the design of this kind gradual change form can make the operation frequency range of second Department of Radiation 303 increase.
Grounding parts 305,305 ' lays respectively at feeding portion 301 both sides, and grounding parts 305,305 ' and feeding portion 301 be connected in the circuit board (not shown) via a connector 310.
Second slit 308 is arranged between the grounding parts 305 and second Department of Radiation 303, and the 3rd slit 309 is arranged between grounding parts 305 and the 3rd Department of Radiation 304, and is interconnected with second slit 308.The setting that is connected of this kind second slit 308 and the 3rd slit 309 can increase the operation frequency range of second Department of Radiation 303, and be beneficial to the impedance matching of second Department of Radiation 303.
In Fig. 3 A, P1 ', P2 ', P3 ' difference representation signal are in the flow path of first Department of Radiation 302, second Department of Radiation 303 and the 3rd Department of Radiation 304, wherein first Department of Radiation 302 can be mid frequency radiated portion, second Department of Radiation 303 can be high-frequency radiation part, and the 3rd Department of Radiation 304 can be low frequency radiation portion.
Fig. 4 A is the schematic diagram according to three-frequency antenna the 3rd embodiment of the present invention, Fig. 4 B is the partial schematic diagram of third embodiment of the invention, please consult Fig. 4 A and Fig. 4 B simultaneously, wherein three-frequency antenna 40 comprises a feeding portion 401, one first Department of Radiation 402, one second Department of Radiation 403, one the 3rd Department of Radiation 404, two grounding parts 405,405 ', 1 first slit 406, one second slit 408 and one the 3rd slit 409.Above-mentioned three-frequency antenna 40 is the copline antenna, and its each assembly division is as follows:
First Department of Radiation 402 connects one first side 401a of first end of feeding portion 401, one second end 403a of second Department of Radiation 403 connects one second side 401b of first end of feeding portion 401, and the 3rd Department of Radiation 404 connects one the 3rd end 403b of second Department of Radiation 403, and therefore the 3rd Department of Radiation 404 and second Department of Radiation 403 have the subregion to overlap mutually.Must notice that in addition the 3rd Department of Radiation 404 is wide more the closer to the width of end, the design of this kind gradual change form can make the operation frequency range of the 3rd Department of Radiation 404 increase.
Grounding parts 405,405 ' lays respectively at feeding portion 401 both sides, and grounding parts 405,405 ' and feeding portion 401 via a connector 410, and be connected in the circuit board (not shown).
In Fig. 4 A, P1 ", P2 ", P3 " respectively representation signal is in the flow path of first Department of Radiation 402, second Department of Radiation 403 and the 3rd Department of Radiation 404; wherein first Department of Radiation 402 can be mid frequency radiated portion; second Department of Radiation 403 can be high-frequency radiation part, and the 3rd Department of Radiation 404 can be low frequency radiation portion.
Though the present invention discloses as above with preferred embodiment; yet it is not in order to limit the present invention; have in any its affiliated technical field and know the knowledgeable usually; without departing from the spirit and scope of the present invention; when the change that can do to be equal to arbitrarily or replacement, so protection scope of the present invention is when looking being as the criterion that claims define.
Claims (12)
1. three-frequency antenna is characterized in that comprising:
One feeding portion;
One first Department of Radiation connects one first side of one first end of described feeding portion;
One second Department of Radiation, one second end of described second Department of Radiation connects one second side of described first end of described feeding portion;
One the 3rd Department of Radiation connects one the 3rd end of described second Department of Radiation; And
One grounding parts is positioned at described feeding portion both sides.
2. three-frequency antenna according to claim 1 is characterized in that described first Department of Radiation is a mid frequency radiated portion.
3. three-frequency antenna according to claim 1 is characterized in that described second Department of Radiation is a high-frequency radiation part.
4. three-frequency antenna according to claim 1 is characterized in that described the 3rd Department of Radiation is a low frequency radiation portion.
5. three-frequency antenna according to claim 1 is characterized in that also comprising one first slit, is arranged between described grounding parts and the described feeding portion.
6. three-frequency antenna according to claim 5 is characterized in that also comprising a coupling groove, is connected with described first slit, and between described first slit and grounding parts.
7. three-frequency antenna according to claim 1 is characterized in that also comprising one second slit, is arranged between described grounding parts and described second Department of Radiation.
8. three-frequency antenna according to claim 7 is characterized in that also comprising one the 3rd slit, is arranged between described grounding parts and described the 3rd Department of Radiation, and is connected with described second slit.
9. three-frequency antenna according to claim 1 it is characterized in that described first Department of Radiation is extended by described first side connection of described first end of described feeding portion, and width increases gradually.
10. three-frequency antenna according to claim 1 it is characterized in that described second Department of Radiation is extended by described second side connection of described first end of described feeding portion, and width increases gradually.
11. three-frequency antenna according to claim 1 it is characterized in that described the 3rd Department of Radiation is extended by described second end connection of second Department of Radiation, and width increases gradually.
12. three-frequency antenna according to claim 1 is characterized in that described feeding portion, described first Department of Radiation, described second Department of Radiation, described the 3rd Department of Radiation and described grounding parts are copline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100051559A CN101494320A (en) | 2008-01-22 | 2008-01-22 | Tri-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100051559A CN101494320A (en) | 2008-01-22 | 2008-01-22 | Tri-frequency antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101494320A true CN101494320A (en) | 2009-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100051559A Pending CN101494320A (en) | 2008-01-22 | 2008-01-22 | Tri-frequency antenna |
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| CN (1) | CN101494320A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025022A (en) * | 2009-09-11 | 2011-04-20 | 联想(北京)有限公司 | Mobile electronic equipment |
| WO2012068947A1 (en) * | 2010-11-22 | 2012-05-31 | 华为终端有限公司 | Antenna and terminal having same |
| CN102736686A (en) * | 2011-04-15 | 2012-10-17 | 联想(北京)有限公司 | Mobile electronic equipment |
| WO2013189375A2 (en) * | 2013-05-21 | 2013-12-27 | 中兴通讯股份有限公司 | Slot antenna and smart terminal |
| CN103545605A (en) * | 2012-07-12 | 2014-01-29 | 智易科技股份有限公司 | Broadband monopole antenna and electronic device |
| CN106876997A (en) * | 2015-12-14 | 2017-06-20 | 亚旭电脑股份有限公司 | LTE antenna structure |
-
2008
- 2008-01-22 CN CNA2008100051559A patent/CN101494320A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102025022A (en) * | 2009-09-11 | 2011-04-20 | 联想(北京)有限公司 | Mobile electronic equipment |
| CN102025022B (en) * | 2009-09-11 | 2013-07-31 | 联想(北京)有限公司 | Mobile electronic equipment |
| WO2012068947A1 (en) * | 2010-11-22 | 2012-05-31 | 华为终端有限公司 | Antenna and terminal having same |
| CN102736686A (en) * | 2011-04-15 | 2012-10-17 | 联想(北京)有限公司 | Mobile electronic equipment |
| CN102736686B (en) * | 2011-04-15 | 2015-06-03 | 联想(北京)有限公司 | Mobile electronic equipment |
| CN103545605A (en) * | 2012-07-12 | 2014-01-29 | 智易科技股份有限公司 | Broadband monopole antenna and electronic device |
| CN103545605B (en) * | 2012-07-12 | 2016-09-28 | 智易科技股份有限公司 | Broadband monopole antenna and electronic installation |
| WO2013189375A2 (en) * | 2013-05-21 | 2013-12-27 | 中兴通讯股份有限公司 | Slot antenna and smart terminal |
| WO2013189375A3 (en) * | 2013-05-21 | 2014-04-17 | 中兴通讯股份有限公司 | Slot antenna and smart terminal |
| CN104183926A (en) * | 2013-05-21 | 2014-12-03 | 中兴通讯股份有限公司 | Slot antenna and intelligent terminal |
| CN106876997A (en) * | 2015-12-14 | 2017-06-20 | 亚旭电脑股份有限公司 | LTE antenna structure |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20090729 |