CN102195126A - Multi-frequency antenna - Google Patents
Multi-frequency antenna Download PDFInfo
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- CN102195126A CN102195126A CN201010118625XA CN201010118625A CN102195126A CN 102195126 A CN102195126 A CN 102195126A CN 201010118625X A CN201010118625X A CN 201010118625XA CN 201010118625 A CN201010118625 A CN 201010118625A CN 102195126 A CN102195126 A CN 102195126A
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- otch
- grounding parts
- fluting
- long limit
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Abstract
The invention provides a multi-frequency antenna, which comprises a feed-in part, a grounding part, a bending part, a main body part and an extension part, wherein the bending part is formed by extending the grounding part; the main body part is connected with the feed-in part and the grounding part respectively; the extension part is vertically connected to the main body part; and a plurality of grooves and gaps are formed on the main body part to divide the main body part into a plurality of radiation areas and obtain a plurality of frequencies.
Description
Technical field
The present invention relates to a kind of antenna, relate in particular to a kind of multifrequency antenna.
Background technology
Along with developing rapidly and the raising of people's living standard of wireless communication technology, mobile phone, personal digital assistant (personal digital assistant, PDA) etc. the portable radio communication device competitively emerges in large numbers, and makes these portable radio communication devices become the indispensable part of modern's daily life.
In these radio communication devices, be used for launching, receiving radio wave to transmit, to exchange the antenna assembly of wireless signal, become one of most important assembly in the radio communication device undoubtedly.Traditional single-band antenna device generally is difficult for satisfying the demand of people to the multiband radio communication device, therefore, in order to satisfy the demand of user to the multiband radio communication device, needs to adopt multi-frequency antenna device.And the general volume ratio of traditional multifrequency antenna is bigger, may occupy a big chunk space in the radio communication device, being unsuitable for radio communication device develops towards miniaturization, and traditional multifrequency antenna does not possess high generality because of mostly being dual-band antenna, is difficult for satisfying simultaneously the requirement of the communication system of different frequency range more than three kinds and three kinds.
Summary of the invention
Mirror is arranged at this, be necessary to provide a kind of highly versatile, and the less multifrequency antenna that takes up space.
A kind of multifrequency antenna, comprise a feeding portion, a grounding parts, a kink, a main part and an extension, described kink is formed by described grounding parts extension, described main part is connected respectively with described feeding portion and grounding parts, described extension is connected with described main part is vertical, offer a plurality of flutings and breach on the described main part, so that described main part is divided into a plurality of radiation areas, and obtain a plurality of frequencies.
Compared to conventional art, described multifrequency antenna is when obtaining multiple operating frequency, and volume obviously dwindles, and makes this multifrequency antenna can not take the configuration space of circuit board, helps the miniaturization of radio communication device.Described multifrequency antenna can produce a plurality of resonance frequencys when work, increased the frequency range of described multifrequency antenna, makes the frequency range scope of this multifrequency antenna can contain a plurality of communication systems commonly used, has strengthened the versatility of described multifrequency antenna.
Description of drawings
Fig. 1 is the schematic perspective view under better embodiment multifrequency antenna of the present invention first visual angle.
Fig. 2 is the schematic perspective view under multifrequency antenna shown in Figure 1 second visual angle.
Fig. 3 loses the measurement result schematic diagram for returning of multifrequency antenna shown in Figure 1.
The main element symbol description
Kink 7
Extension 9
The 3rd grounding parts 65
Bending segment 73
First fluting 83
Second fluting 84
The 3rd fluting 85
The 4th fluting 86
The 5th fluting 87
Three cuts 841
The 4th otch 842
The 5th otch 851
The 6th otch 852
The 7th otch 861
The 8th otch 862
The 9th otch 871
The tenth otch 872
Embodiment
The invention provides a kind of multifrequency antenna, described multifrequency antenna is a three-dimensional antenna, it can be installed in mobile phone, personal digital assistant (personal digital assistant, PDA) etc. in the portable radio communication device, in order to emission, receive radio wave with transmit, the exchange radio signal.
See also Fig. 1 and Fig. 2, the size of the multifrequency antenna 100 of better embodiment of the present invention is about 15mm * 50mm * 6mm, and it comprises a feeding portion 5, a grounding parts 6, a kink 7, a main part 8 and an extension 9.Described kink 7 is extended by described grounding parts 6 and forms, this main part 8 and described feeding portion 5 and grounding parts 6 is connected respectively and described main part 8 on offer a plurality of flutings and breach, described extension 9 and described 8 vertical connections of main part.
This feeding portion 5 is a strip lamellar body, it can be installed on the interior traditional circuit board of above-mentioned described portable radio communication device (figure does not show), and electrically connect with being arranged on traditional signal transmission ends on this circuit board (figure does not show), think that described multifrequency antenna 100 plays signal feed-in effect.
Described grounding parts 6 is a horizontal lamellar body, is arranged in the same plane with described feeding portion 5, and it comprises one first grounding parts 61, one second grounding parts 63 and one the 3rd grounding parts 65.This first grounding parts 61 is a rectangle lamellar body, and the one end can be connected to the traditional grounded part on the described circuit board, thinks that described multifrequency antenna 100 provides the ground connection effect.This second grounding parts 63 is used to connect described kink 7 and described the 3rd grounding parts 65, makes kink 7 and described the 3rd grounding parts 65 equal ground connection.This second grounding parts 63 comprises one first long limit 631, a minor face 633 and one second long limit 635.The described first long limit 631 is strip lamellar body always, and it vertically connects in described first grounding parts 61 side of feeding portion 5 dorsad.This minor face 633 is the vertical bar shape lamellar body that a width is slightly wider than the described first long limit 631, and itself and vertical connection of end on the described first long limit 631 are to be parallel to each other with described feeding portion 5.This second long limit 635 be a width with the first long limit, 631 width quite and length is longer than the vertical bar shape lamellar body on the first long limit 631 slightly, itself and terminal vertical connection of minor face 633, be arranged at the homonymy of minor face 633 with the first long limit 631, and be arranged in parallel with the described first long limit 631.The 3rd grounding parts 65 is the lamellar body that a length slightly is shorter than minor face 633, and vertical respectively end and the main part 8 that connects the described second long limit 635 in its two ends thinks that described main part 8 provides the ground connection effect.The described first long limit 631, minor face 633 and the second long limit 635 surround first groove 67 of a rectangle jointly.
This kink 7 comprises a linkage section 71 and a bending segment 73, described linkage section 71 is a long and narrow vertical bar shaped lamellar body, be laid on described feeding portion 5 and the plane, grounding parts 6 place, the one end vertically is connected in the minor face 633 the second long limit, 635 1 sides dorsad, and is located on the same bearing of trend with the second long limit 635.Described bending segment 73 is strip lamellar body always, and its plane, place is vertical with described feeding portion 5 and plane, grounding parts 6 place.The length of this bending segment 73 is less than the length of described linkage section 71, itself and described 71 vertical connections of linkage section.
This main part 8 is that an external overall profile is rectangular and be provided with the tabular lamellar body of a plurality of flutings and breach, its be arranged at all vertical plane in feeding portion 5, grounding parts 6 and plane, bending segment 73 place in.This main part 8 comprise two mutually parallel long limit 8a, 8b and two mutual parallel and with described long limit 8a, the orthogonal minor face 8c of 8b, 8d.Offer one first breach 81, one second breach 82, one first fluting, 83,1 second fluting, 84,1 the 3rd fluting, 85,1 the 4th fluting, 86 and 1 the 5th fluting 87 on this main part 8.Wherein, first breach 81 is rectangular, and it is opened in the medium position of described long limit 8a, and extends along the direction parallel with long limit 8a.Described second breach 82 is rectangular, and itself and described first breach 81 are parallel to each other.These second breach, 82 1 ends are opened in the medium position of described long limit 8b, and extend along the direction parallel with long limit 8b.This first fluting 83 is arranged on the same side of described first breach 81, second breach 82, and it roughly is " L " shape.This first fluting 83 comprises one first otch 831 and one second otch 832, and this first otch 831 and second otch 832 all are vertical bar shaped.The minor face 8c that described first otch, 831 1 ends are opened in main part 8 goes up than the position near long limit 8b, and along the direction extension parallel with two long limit 8a, 8b.The width of this second otch 832 is suitable with first otch 831, and its end with first otch 831 is connected, and its trend is then perpendicular to first otch 831 and long limit 8a, 8b, and extends towards described long limit 8a.This second fluting 84 roughly is " L " shape, it is opened in the opposite side of described first breach 81, second breach 82.Described second fluting 84 comprises a three cuts 841 and one the 4th otch 842, and this three cuts 841 and the 4th otch 842 all are vertical bar shaped.Described three cuts 841 is between feeding portion 5 and the 3rd grounding parts 65, and it is opened in the position that long limit 8a goes up close minor face 8d, and extends along the direction parallel with two minor face 8c, 8d.The 4th otch 842 1 ends are connected with the end of three cuts 841, and it moves towards then perpendicular to three cuts 841 and minor face 8c, 8d, and extend towards described minor face 8c.
Described the 3rd fluting 85 is opened between described second breach 82 and first fluting 83, and it comprises that one the 5th otch 851 and one the 6th otch, 852, the five otch 851 and the 6th otch 852 all are vertical bar shaped.The 5th otch 851 is opened on the described long limit 8b, and its trend is parallel with long limit 8b, and its end communicates with described second breach, 82 ends.The 6th otch 852 1 ends are connected with terminal and second breach 82 of described the 5th otch 851, and extend along the direction parallel with two minor face 8c, 8d in the main part 8, with described first fluting 83 in second otch 832 and second fluting 84 in three cuts 841 all parallel.The 4th fluting 86 roughly is " L " shape, it is opened between described first breach 81 and second breach 82.The 4th fluting 86 comprises that one the 7th otch 861 and one the 8th otch, 862, the seven otch 861 are roughly rectangular, and the one end is connected in the end that the 6th otch 852 stretches into main part 8 inside, and its bearing of trend is consistent with the 6th otch 852.The 8th otch 862 is vertical bar shaped, the one end is connected with the end of terminal and the 7th otch 861 of described the 6th otch 852 and is intersected in, its trend then is parallel to described long limit 8a, 8b, and extends towards described minor face 8d along the direction parallel with first breach 81.
The 5th fluting 87 roughly is " L " shape, it is opened between described the 4th fluting 86 and second fluting 84.The 5th fluting 87 comprises that one the 9th otch 871 and 1 the tenth otch, 872, the nine otch 871 and the tenth otch 872 all are vertical bar shaped.The 9th otch 871 is vertical with the 8th otch 862, and its middle part is connected with the end of described the 8th otch 862, and its bearing of trend is then parallel with minor face 8c, 8d.The tenth otch 872 is vertical with described the 9th otch 871, and the one end is connected in the end of close long limit 8b in the 9th otch 871, and its trend is parallel to the direction of long limit 8a, 8b and extends towards described minor face 8c.
This extension 9 is rectangle plates, and it is in the plane that is parallel to each other with described feeding portion 5 and grounding parts 6, and with main part 8 on be connected at the part vertical transition of described first fluting the 83 and the 3rd fluting between 85.
Be appreciated that by adjusting the size of described groove 67, second fluting the 84 and the 5th fluting 87, to adjust the impedance matching of described multifrequency antenna 100.
Be appreciated that, because described main part 8 is provided with a plurality of flutings and breach, so that described main part 8 is divided into a plurality of radiation areas, thereby when described multifrequency antenna 100 is worked, after signal is entered by feeding portion 5, to propagate along different radiation areas respectively, to obtain the propagation path of different length, and produce different current signals, and then make that multifrequency antenna 100 can be respectively at GSM900 (band limits: 890～960MHz), DCS1800 (band limits: 1710～1880MHz), PCS1900 (band limits: 1850～1990MHz) and UMTS2100 (band limits: carry out work under a plurality of wireless communication frequency bands commonly used such as 1920～2170MHz).
What Figure 3 shows that described multifrequency antenna 100 returns loss (return loss, RL) measurement result schematic diagram.By described measurement result as can be known, the frequency range of this multifrequency antenna can contain the communication system to GSM 900, DCS1800, PCS1900 and UMTS2100.Wherein, when being 880MHz, 1024MHz, 1679MHz, 1813MHz and 2173MHz respectively at frequency, the RL value that records described multifrequency antenna 100 is respectively-6.02dB ,-6.05dB ,-6.02dB ,-6.69dB and-6.03dB, all satisfy the requirement of wireless communication system.
In addition, those skilled in the art also can make various modifications, interpolation and the replacement on other form and the details in claim of the present invention scope of disclosure and spirit.Certainly, these all should be included in the present invention's scope required for protection according to the variations such as various modifications, interpolation and replacement that spirit of the present invention is made.
Claims (13)
1. multifrequency antenna, it comprises a feeding portion, a grounding parts, a kink, a main part and an extension, described kink is formed by described grounding parts extension, described main part is connected respectively with described feeding portion and grounding parts, described extension is connected with described main part is vertical, offer a plurality of flutings and breach on the described main part, so that described main part is divided into a plurality of radiation areas, and obtain a plurality of frequencies.
2. multifrequency antenna as claimed in claim 1, it is characterized in that: described feeding portion is a lamellar body, described grounding parts comprises one first grounding parts, one second grounding parts and one the 3rd grounding parts, described first grounding parts is a lamellar body and is arranged in parallel with described feeding portion, described second grounding parts connects the end of terminal and the 3rd grounding parts of described first grounding parts, and described the 3rd grounding parts is vertical respectively described second grounding parts and the described main part of connecting in a lamellar body and two ends.
3. multifrequency antenna as claimed in claim 2, it is characterized in that: described second grounding parts comprises one first long limit, a minor face and one second long limit, the described first long limit is strip lamellar body always, described first grounding parts of its vertical connection, described minor face is strip lamellar body always, itself and terminal vertical connection on the described first long limit, and described second grows the limit is strip lamellar body always, itself and terminal vertical connection of minor face, and with described first grow the limit and be arranged in parallel.
4. multifrequency antenna as claimed in claim 3, it is characterized in that: described kink comprises a linkage section and a bending segment, described linkage section is bar shaped lamellar body always, one end vertically is connected to minor face one an end side on the second long limit dorsad, and be located on the same bearing of trend with the second long limit, described bending segment is strip lamellar body always, and its plane, place is vertical with plane, described feeding portion place and be connected with described linkage section is vertical.
5. multifrequency antenna as claimed in claim 3 is characterized in that: the described first long limit, minor face and the second long limit surround a groove jointly.
6. multifrequency antenna as claimed in claim 1, it is characterized in that: described main part is a lamellar body, it comprise two mutually parallel long limits and two parallel mutually and with the orthogonal minor face in described long limit, offer one first breach, one second breach, one first fluting, one second fluting, one the 3rd fluting, the 4th on the described main part and slot and one the 5th fluting.
7. multifrequency antenna as claimed in claim 6 is characterized in that: described first breach is rectangular, and it is opened in wherein on the long limit, and along the direction extension parallel with long limit, described second breach is rectangular, and it is opened on another long limit, and extends along the direction parallel with long limit.
8. multifrequency antenna as claimed in claim 6, it is characterized in that: described first fluting comprises one first otch and one second otch, described first otch and described second otch all are vertical bar shaped, described first otch, one end is opened in wherein on the minor face, and along the direction extension parallel with two long limits, described second otch is connected with the end of first otch, and trend is then extended perpendicular to described first otch and two long limits.
9. multifrequency antenna as claimed in claim 8, it is characterized in that: described second fluting is oppositely arranged with described first fluting, described second fluting comprises a three cuts and one the 4th otch, described three cuts and the 4th otch all are vertical bar shaped, described three cuts is between described feeding portion and grounding parts, it is opened in wherein on the long limit, and along the direction extension parallel with two minor faces, described the 4th otch one end is connected with the end of three cuts, and it moves towards then perpendicular to three cuts and minor face.
10. multifrequency antenna as claimed in claim 7, it is characterized in that: described the 3rd fluting comprises one the 5th otch and one the 6th otch, described the 5th otch is opened in wherein on the long limit and with described second breach and communicates, the other end extends along the direction that is parallel to two minor faces, terminal and second breach of described the 6th otch one end and described the 5th otch connects, and extends along the direction parallel with two minor faces.
11. multifrequency antenna as claimed in claim 10, it is characterized in that: described the 4th fluting comprises one the 7th otch and one the 8th otch, described the 7th otch is rectangular, the one end is connected in the end that the 6th otch stretches into described main part inside, its bearing of trend is consistent with the 6th otch, described the 8th breach one end is connected with the end of terminal and the 7th otch of described the 6th otch respectively and is intersected in, and its trend then is parallel to two long limits.
12. multifrequency antenna as claimed in claim 11, it is characterized in that: described the 5th fluting comprises one the 9th otch and 1 the tenth otch, described the 9th otch is vertical bar shaped, it is vertical with described the 8th breach, described the 9th otch middle part is connected with the end of described the 8th otch, its bearing of trend is then parallel with two minor faces, and described the tenth otch is vertical with described the 9th otch, and is formed along the direction that is parallel to two long limits and towards the described first fluting position extension by the 9th otch one end.
13. multifrequency antenna as claimed in claim 9 is characterized in that: described extension is a lamellar body, and it is in the plane that is parallel to each other with described feeding portion and grounding parts, and with described first the fluting and the 3rd the fluting between vertical connection of radiant section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010118625.XA CN102195126B (en) | 2010-03-05 | 2010-03-05 | Multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010118625.XA CN102195126B (en) | 2010-03-05 | 2010-03-05 | Multi-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102195126A true CN102195126A (en) | 2011-09-21 |
| CN102195126B CN102195126B (en) | 2015-03-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010118625.XA Expired - Fee Related CN102195126B (en) | 2010-03-05 | 2010-03-05 | Multi-frequency antenna |
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| CN (1) | CN102195126B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425895A (en) * | 2013-08-29 | 2015-03-18 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with antenna structure |
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| US20030174092A1 (en) * | 2002-03-15 | 2003-09-18 | Sullivan Jonathan Lee | Planar inverted-F antenna including a matching network having transmission line stubs and capacitor/inductor tank circuits |
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| CN201171084Y (en) * | 2008-02-01 | 2008-12-24 | 速码波科技股份有限公司 | Dual-frequency reverse-F type antennae |
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| CN101651253A (en) * | 2008-08-11 | 2010-02-17 | 深圳富泰宏精密工业有限公司 | Dual-band antenna and wireless communication device using same |
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2010
- 2010-03-05 CN CN201010118625.XA patent/CN102195126B/en not_active Expired - Fee Related
Patent Citations (9)
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|---|---|---|---|---|
| US20030174092A1 (en) * | 2002-03-15 | 2003-09-18 | Sullivan Jonathan Lee | Planar inverted-F antenna including a matching network having transmission line stubs and capacitor/inductor tank circuits |
| US20040080457A1 (en) * | 2002-10-28 | 2004-04-29 | Yongxin Guo | Miniature built-in multiple frequency band antenna |
| US20050128151A1 (en) * | 2003-12-13 | 2005-06-16 | Info & Communications Univ Educational Foundation | Internal multi-band antenna with multiple layers |
| US20050270240A1 (en) * | 2004-06-02 | 2005-12-08 | Research In Motion Limited | Mobile wireless communications device comprising a top-mounted auxiliary input/output device and a bottom-mounted antenna |
| WO2006070233A1 (en) * | 2004-12-31 | 2006-07-06 | Nokia Corporation | Internal multi-band antenna with planar strip elements |
| CN200969395Y (en) * | 2006-11-14 | 2007-10-31 | 富港电子（东莞）有限公司 | Multi-frequency antenna |
| CN201171084Y (en) * | 2008-02-01 | 2008-12-24 | 速码波科技股份有限公司 | Dual-frequency reverse-F type antennae |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104425895A (en) * | 2013-08-29 | 2015-03-18 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with antenna structure |
| CN104425895B (en) * | 2013-08-29 | 2019-05-14 | 深圳富泰宏精密工业有限公司 | Antenna structure and wireless communication device with the antenna structure |
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| Publication number | Publication date |
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| CN102195126B (en) | 2015-03-11 |
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Granted publication date: 20150311 Termination date: 20200305 |