CN101102006A - Multi-frequency antenna - Google Patents
Multi-frequency antenna Download PDFInfo
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- CN101102006A CN101102006A CN 200610088195 CN200610088195A CN101102006A CN 101102006 A CN101102006 A CN 101102006A CN 200610088195 CN200610088195 CN 200610088195 CN 200610088195 A CN200610088195 A CN 200610088195A CN 101102006 A CN101102006 A CN 101102006A
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- sheet metal
- multifrequency antenna
- conducting strip
- antenna
- radiant panel
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Abstract
The invention is concerned with the multi-frequency antenna, includes the radial lamella, the ground plate parallel distance with the radial lamella, the resonant cavity and the two conductive chip allocate in between the space of the radial lamella and the ground plate; the radial lamella is in 'Z' shape with the first metal chip and the second metal chip expanding to different direction where the first conductive chip expending downwards from the side of the first metal chip as the feed-in terminal, and the second conductive chip expending downwards from the side of the second metal chip to connect with the ground plate electrically as the grounding terminal, and the first metal chip expending of the side of the first conductive chip connecting with the second metal chip of the side of the second conductive chip.
Description
[technical field]
The invention relates to a kind of multifrequency antenna, especially refer to a kind of small-sized flat antenna.
[background technology]
In the modern electronic equipment, the utilization wireless communication technique carries out wireless transmission to data, sound, image etc. and is more and more used.Antenna as a kind of assembly in order to the induced electricity magnetic wave, is the device of employing wireless mechanics of communication equipment necessity.Early stage antenna is arranged on electronic device exterior more, based on one pole or helical antenna, it is simpler that it has design, characteristics such as gain coefficient height, but these antenna volume are bigger, and be arranged on electronic device exterior, also require supporting jockey, make structure comparatively complicated, and antenna directivity is stronger, the direction that need change antenna frequently during use has also been brought inconvenience to the user to obtain better reception.Along with the development of electronics miniaturization, attractive in appearanceization and cost degradation, antenna more and more is built in the electronic equipment.Because built-in aerial is for being fixed in the electronic equipment, built-in aerial need cooperate the different requirements of distinct electronic apparatuses inner space on shape and the mounting means.Plate type antenna is owing to its lower height, and smaller volume is by the more electronic equipment internal that is applied in.Plate aerial in the past is many to be made of small one and large one two rectangular slabs and the sheet metal that connects two rectangular slabs, and this antenna volume is often bigger, the inapplicable miniaturized electronics inside that is installed in.In the prior art, Figure 1 shows that the TaiWan, China patent announcement has disclosed a kind of multifrequency plate type antenna of miniaturization for TW587847 number, it includes a signal end 21 ', this signal end 21 ' by lead-in wire 42 ' two ends extended flat metal face 211 ', 212 ', and is a load point with the Extendible flake 41 ' of a flat metal face 212 ' of this signal end 21 ' by at least more than one in addition; One earth terminal 22 ' is made of metal and is tabular, and itself and this signal end 21 ' is to each other and is arranged in parallel; One resonant cavity 231 ' is obtained by the distance of fixing maintenance one constant predetermined value between this signal end 21 ' and this earth terminal 22 '; And the flat metal slip 43 ' of an above suitable length, these flat metal slip 43 ' warpages are long section part 431 ' and weak point section portion 432 ', this long section part 431 ' is with earth terminal 22 ' and is parallel to each other, and be load point with this long section part 431 ' appropriate location, this weak point section portion 432 ' then is connected in earth terminal 22 ', respectively the load point of this signal end 21 ' is connected in the positive pole of coaxial feeder, and this earth terminal 21 ' is connected in the negative pole of coaxial feeder.This plate type antenna cooperates position, area and the shape of frequency can obtain its required impedance matching by adjusting Extendible flake 41 ', in order to make signal end be operated in different frequencies, this antenna is provided with at least two load points makes antenna structure comparatively complicated to obtain different input impedance.TaiWan, China patent announcement TW No. 284088 (please refer to the shown in Figure 1 of this patent accompanying drawing) has disclosed a kind of multifrequency flat plate antenna structure of falling F again, this antenna provides a kind of plate aerial of miniaturization, this antenna utilizes a grounding assembly to link to each other with earth terminal, regulate the impedance of antenna with the electrical length that increases ground connection, thereby guaranteed that antenna has enough frequency ranges, but the grounding assembly that increases makes that the structure of antenna is still simple inadequately, on the other hand, this antenna must be attached on other insulation system and fix (please refer to the shown in Figure 2 of this patent accompanying drawing), and because the restriction in electronic equipment internal space does not often have suitable this kind of space mounting antenna in some electronic equipments.Therefore we are necessary provides a kind of independence easily fixing, the small and exquisite flat multifrequency antenna simple in structure of volume.
[summary of the invention]
The object of the invention is to provide a kind of multifrequency antenna, especially refers to a kind of simple in structure in the electronic equipment of being used in, the flat multifrequency antenna of miniaturization.
For achieving the above object, the present invention adopts following technical scheme: a kind of multifrequency antenna comprise radiant panel, and the ground plate of radiant panel parallel interval setting, by fixing resonant cavity and two conducting strips that keep a distance and obtain between radiant panel and ground plate; Wherein said radiant panel roughly is " Z " shape, have first sheet metal and second sheet metal that extend to different directions, first conducting strip extends downwards as the feed side from a side of first sheet metal, as earth terminal, the side of the side of extension first conducting strip of described first sheet metal and extension second conducting strip of described second sheet metal is adjacent from the side extension downwards of second sheet metal and with the ground plate electric connection for second conducting strip.
Compared with prior art, multifrequency antenna of the present invention has the following advantages: the volume of this multifrequency antenna Department of Radiation is small and exquisite, easily fixing, utilize simultaneously at the ad-hoc location of the conducting strip on the different metal sheet and regulate the position of presenting between point and the earth point, thereby guaranteed the radiance of antenna with simple structure.
[description of drawings]
Fig. 1 is the stereogram of prior art.
Fig. 2 is the stereogram of multifrequency antenna of the present invention.
Fig. 3 is the exploded view of multifrequency antenna of the present invention.
[embodiment]
A Fig. 2 and a preferred embodiment that Figure 3 shows that multifrequency antenna 1 of the present invention.This multifrequency antenna 1 comprises metal radiant panel 2 and ground plate 3, and wherein radiant panel 2 roughly is " Z " shape, and it comprises first, second, third rectangular sheet metal 21,22,23.Wherein first sheet metal 21 extends to terminal 210 from initiating terminal 211 along the axle positive direction, second sheet metal 22 extends to the terminal 220 1 segment distance places of terminal 220, the three sheet metals 23 autoradiolysis plates, 2 distances from the initiating terminal 211 of first sheet metal 21 along the Y-axis positive direction and extends to terminal 230 along the axle negative direction.First sheet metal 21 extends first conducting strip, 24, the second sheet metals 22 downwards apart from initiating terminal 211 certain distances and extends second conducting strip 25 apart from terminal 220 a distance along Z axle negative direction.Ground plate 3 has opening 33, a location hole 34 and two rectangular channels 35 that form on some through holes 31, a fluting 32, one side 30.Radiant panel 2 separates setting with ground plate 3, and the distance that both are maintained fixed also forms a resonant cavity 4.For better fixedly radiant panel 2 and ground plate 3 and keep between the two relative position, separate with a plastic 5 between radiant panel 2 and the grounding parts 3 and fix, with the position between better fixedly radiant panel 2 and the grounding parts 3.Plastic 5 has certain height, and upper surface is pasted radiant panel 2, and lower surface extends some cylindrical portion 51 along Z axle negative direction, and cylindrical portion 51 cooperates with the through hole 31 of ground plate 3, makes cylindrical portion 51 can pass through hole 31 so that plastic 5 is fixed on the ground plate 3.Plastic 5 comprises that also one connects the installing hole 52 of upper and lower surface, and this installing hole 52 is communicated with the location hole 34 of grounding parts 3, forms a groove in order to plastic 5, ground plate 3 and multifrequency antenna 1 are fixed on electronic equipment internal.Thereby the shape of plastic 5 designs with electronic equipment according to the electronic equipment internal structure and cooperates.Among this embodiment, the rectangular channel 35 on the ground plate 3 is exposed to the both sides of plastic 5.Certainly, among other embodiment, plastic 5 also can utilize other insulating material to make an insulation system, and plastic 5 is not necessary member in this antenna, and plastic 5 can not use in other embodiments.First conducting strip 24 extends through the fluting 32 of ground plate 3 and does not link to each other with ground plate 3, and second conducting strip extends through the opening 33 of ground plate 3.First conducting strip 24 forms the feed side with heart yearn (not shown) welding of feeder line, and second conducting strip 25 forms earth terminal with ground plate 3 welding.
Radiant panel 2 is the Department of Radiation of multifrequency antenna 1, and wherein first sheet metal 21 is used to receive and launch the signal (5Ghz) of upper frequency, forms first emission band; The 3rd sheet metal 23 is used to receive and launch the signal (2GHz) of lower frequency, forms second emission band.Ground plate 3 is as the grounding parts of multifrequency antenna 1.For antenna, its impedance matching degree is the key factor of decision antenna radiation performance, and the distance between earth terminal and the feed side directly affects the impedance of antenna.Because the requirement of antenna miniaturization and the restriction of installing space, the height of multifrequency antenna 1 reduces, the distance that does not have enough distances to regulate between earth terminal and the feed side between radiant panel 2 and the ground plate 3 satisfies required impedance, therefore multifrequency antenna 1 passes through to regulate first, second conducting strip 24,25 relative positions, thereby reaches the purpose of regulating antenna impedance with the distance of regulating between earth terminal and the feed side.Simultaneously, the 3rd sheet metal 23 is not to extend from second sheet metal, 22 ends 220, but the terminal 220 1 segment distance vertical extent of distance form a projection, and the effect of regulating impedance has also been played at this position.In the present embodiment, the length of first sheet metal 21 of multifrequency antenna 1 is 9.36mm, and initiating terminal 211 distances of first conducting strip 24 and first sheet metal 21 are 2.00mm; Second sheet metal, 22 terminal 220 and first sheet metals 21 are apart from 11.30mm, and second conducting strip 25 and second sheet metal, 22 terminal 220 distances are 10.90mm.Multifrequency antenna 1 makes antenna can work in a plurality of frequency bands simultaneously by position, length and the width of regulating sheet metal and the angle covering is bigger, also has the effect of impedance matching simultaneously; In addition, the position of conducting strip can be adjusted as required to adjust distance between earth terminal and the feed side to satisfy the required resistance value of antenna, makes antenna radiation performance better.
Claims (10)
1. multifrequency antenna, it comprises radiant panel, ground plate with the setting of radiant panel parallel interval, by fixing resonant cavity and two conducting strips that keep a distance and obtain between radiant panel and ground plate, it is characterized in that: described radiant panel roughly is " Z " shape, have first sheet metal and second sheet metal that extend to different directions, first conducting strip extends downwards as the feed side from a side of first sheet metal, as earth terminal, the side of the side of extension first conducting strip of described first sheet metal and extension second conducting strip of described second sheet metal is adjacent from the side extension downwards of second sheet metal and with the ground plate electric connection for second conducting strip.
2. multifrequency antenna as claimed in claim 1, it is characterized in that: described second sheet metal vertically extends from first sheet metal, described radiant panel also comprises from extended the 3rd sheet metal of second sheet metal, wherein said first sheet metal is wide than second sheet metal, and the 3rd sheet metal is wide than first sheet metal.
3. multifrequency antenna as claimed in claim 2 is characterized in that: the 3rd sheet metal of described multifrequency antenna is for extending from the terminal segment distance place of distance second sheet metal, and it is parallel with first sheet metal, and second sheet metal has a projection.
4. multifrequency antenna as claimed in claim 2 is characterized in that: described first sheet metal is used to transmit and receive the signal that frequency is 5GHz, and the 3rd sheet metal is used to transmit and receive the signal that frequency is 2.5GHz.
5. multifrequency antenna as claimed in claim 1 is characterized in that: the initiating terminal of described first conducting strip and first sheet metal forms certain distance, and the end of second conducting strip and second sheet metal forms certain distance.
6. multifrequency antenna as claimed in claim 1 is characterized in that: described conducting strip is by regulating mutual relative position to regulate the impedance matching of antenna.
7. multifrequency antenna as claimed in claim 1 is characterized in that: described grounding parts comprises that some through holes, accommodate the fluting of conducting strip, and accommodate the opening of conducting strip, a location hole and two rectangular channels.
8. multifrequency antenna as claimed in claim 7 is characterized in that: described multifrequency antenna also comprises an insulation system, and between radiant panel and ground plate, described radiant panel is positioned at the insulation system upper surface.
9. multifrequency antenna as claimed in claim 8 is characterized in that: described insulation system is used for further the fixedly relative position of radiant panel and ground plate.
10. multifrequency antenna as claimed in claim 9, it is characterized in that: described insulation system is a plastic, the shape of described plastic designs according to the electronic installation internal structure, has cylindrical portion that the through hole of some and described grounding parts cooperates and the installing hole that is communicated with the location hole of grounding parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610088195 CN101102006B (en) | 2006-07-03 | 2006-07-03 | Multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610088195 CN101102006B (en) | 2006-07-03 | 2006-07-03 | Multi-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101102006A true CN101102006A (en) | 2008-01-09 |
| CN101102006B CN101102006B (en) | 2012-01-11 |
Family
ID=39036174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610088195 Expired - Fee Related CN101102006B (en) | 2006-07-03 | 2006-07-03 | Multi-frequency antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101102006B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157776A (en) * | 2011-03-02 | 2011-08-17 | 上海交通大学 | Data card low-SAR (Specific Absorption Rate) value antenna for notebook computer |
| CN112864589A (en) * | 2019-11-27 | 2021-05-28 | 和硕联合科技股份有限公司 | Antenna structure and communication device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1065437A (en) * | 1996-08-21 | 1998-03-06 | Saitama Nippon Denki Kk | Inverted-f plate antenna and radio equipment |
| CN1431734A (en) * | 2002-01-10 | 2003-07-23 | 飞元科技股份有限公司 | Dual frequency flat panel antenna and its radiation sheet metal |
| JP2004040596A (en) * | 2002-07-05 | 2004-02-05 | Matsushita Electric Ind Co Ltd | Multiple frequency antenna for portable radio equipment |
-
2006
- 2006-07-03 CN CN 200610088195 patent/CN101102006B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102157776A (en) * | 2011-03-02 | 2011-08-17 | 上海交通大学 | Data card low-SAR (Specific Absorption Rate) value antenna for notebook computer |
| CN102157776B (en) * | 2011-03-02 | 2014-08-27 | 上海交通大学 | Data card low-SAR (Specific Absorption Rate) value antenna for notebook computer |
| CN112864589A (en) * | 2019-11-27 | 2021-05-28 | 和硕联合科技股份有限公司 | Antenna structure and communication device |
| CN112864589B (en) * | 2019-11-27 | 2023-12-22 | 和硕联合科技股份有限公司 | Antenna structure and communication device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101102006B (en) | 2012-01-11 |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20120111 Termination date: 20130703 |