CN1983713A - Multi-frequency antenna - Google Patents
Multi-frequency antenna Download PDFInfo
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- CN1983713A CN1983713A CNA2005101231659A CN200510123165A CN1983713A CN 1983713 A CN1983713 A CN 1983713A CN A2005101231659 A CNA2005101231659 A CN A2005101231659A CN 200510123165 A CN200510123165 A CN 200510123165A CN 1983713 A CN1983713 A CN 1983713A
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Abstract
The invention is concerned with the multi-frequency antenna, including: the first antenna for wireless wide area network (WAN), the second antenna for wireless local area network, and the grounding part sharing by two antennas. The low-frequency part of the first antenna consists of the metal slice, model and aluminum foil, in order to increase the length and square of the radiant part, reduce the disturbance of the first antenna.
Description
[technical field]
The invention relates to a kind of multifrequency antenna, especially refer to a kind of multifrequency antenna that is used for electronic equipments such as notebook computer.
[background technology]
Along with the high speed development of mobile communication, the volume of various electronic products is more and more littler, and is also more and more higher to the requirement of its intraware.Because the development of radio network technique, based on GPRS (General PackerRadio Service, GPRS) and the wireless-access mode of WLAN (Wireless Local Area Network, WLAN (wireless local area network)) more and more apply in the notebook computer.GPRS is the wireless network that a wide area covers, and its message transmission rate is probably at 30Kbps-50Kbps, and WLAN is a wireless network that the zone covers, and its message transmission rate can reach 11Mbps (based on the 802.11b technology).People cooperate portable terminal devices such as notebook computer by selecting the different radio network interface card, insert Internet whenever and wherever possible.Because the WLAN message transmission rate can reach 11Mbps, so (hotel, airport, coffee-house, commercial center, conference and exhibition center) provides public WLAN high-speed data service at some hot zones, automatically switch after leaving hot zones, connect by maintenance networks such as GPRS.
In wireless communication procedure, antenna is a requisite significant components, at some the portable terminal device of GPRS and WLAN bimodulus form network interface card is installed, two antennas all can be equipped with, to adapt to the requirement of WLAN (Wireless Wide Area Network. wireless wide area network) and WLAN working frequency range respectively.Yet portable terminal devices such as notebook computer are attended by the requirement of miniaturization, so how two kinds of aerial integrations have just been become the problem of pendulum in face of the designer in limited space.In the prior art, with reference to shown in Figure 1, this multifrequency antenna 10 ' comprises first antenna 1 ' and second antenna 2 ' and third antenna 3 ' that is used for WLAN (wireless local area network) and the 4th antenna 4 ' that is used for wireless wide area network.This multifrequency antenna 10 ' is made and is formed by a sheet metal punching press, and wireless wide area network antenna and wireless lan antenna are together with each other.But two kinds of antennas of this antenna can influence each other, when two kinds of antennas too near the time can cause two antennas between isolate and to spend little and entire antenna frequency range deficiency, thereby remote-effects are to laser propagation effect.
[summary of the invention]
The object of the invention is to provide a kind of multifrequency antenna that not only can be operated in wireless wide area network but also can be operated in WLAN (wireless local area network), and volume reduces than prior art, and two kinds of antennas on this antenna influence each other also as far as possible little.
To achieve these goals, the present invention adopts following technical scheme: a kind of multifrequency antenna comprises first antenna that is used for wireless wide area network, be used for second antenna of WLAN (wireless local area network) and be the grounding parts that first antenna and second antenna are shared, first radiation arm that described first antenna has comprises sheet metal, be fixed on the plastic on the sheet metal and be fixed on metal forming on the plastic.
Compared with prior art, multifrequency antenna of the present invention has following beneficial effect: reduced antenna volume, increased the frequency range and the antenna gain of wireless wide area network antenna, and reduced influencing each other of two antennas.
[description of drawings]
Fig. 1 is the stereogram of prior art multifrequency antenna.
Fig. 2 is the stereogram of multifrequency antenna of the present invention.
Fig. 3 is the stereogram of another angle of multifrequency antenna of the present invention.
Fig. 4 is the antenna body stereogram of multifrequency antenna of the present invention.
Fig. 5 is the multifrequency antenna of the present invention stereogram of an angle again.
Fig. 6 is the stereogram of the another angle of multifrequency antenna of the present invention.
[embodiment]
Please refer to Fig. 2 to shown in Figure 6, it is the multifrequency antenna stereogram according to a kind of better embodiment of the present invention provided.This multifrequency antenna 1 is made up of an antenna body 100 and the plastic 112 and the metal forming 113 that are pasted on the antenna, and it comprises the grounding parts 6 that first antenna 2 that is used for wireless wide area network, second antenna 3 that is used for WLAN (wireless local area network) and two antennas are shared.Grounding parts 6 comprises first grounding parts 61 and the kink 62 that vertically extends.Plastic 112 and metal forming 113 are pasted on first antenna 2.This multifrequency antenna 1 is made by a sheet metal punching press, and wireless wide area network antenna and wireless lan antenna are together with each other.Metal forming 113 is aluminium foil in the present embodiment.
First antenna 2 comprises first radiating element 10, first connecting portion 20 and grounding parts 6.First radiating element 10 comprises first Department of Radiation 11 and second Department of Radiation 12.First Department of Radiation 11 comprises that first radiation arm 101, second radiation arm, 102, the second Departments of Radiation 12 comprise second radiation arm 102, the 3rd radiation arm 103 and the 4th radiation arm 104.First radiation arm 101 comprise a sheet metal 111, be pasted on the plastic 112 on the sheet metal 111 and be pasted on sheet metal 111 and plastic 112 on aluminium foil 113.Plastic 112 is pasted with respect to the surface of first grounding parts with sheet metal 111, the one side and second antenna 3 are bonding, the shape of plastic 112 and sheet metal 111 shapes are worked in coordination, sheet metal is L-shaped, promptly have a wider part 111a and a narrower part 111b, plastic 112 is a cuboid, has a raised line 112 ' to engage with sheet metal 111 narrower part 111b on it, makes opposing surperficial in the same plane of raised line 112 ' and sheet metal 111 both and first grounding parts 61.Aluminium foil 113 is " ㄈ " shape, comprises a side 113b and the upper and lower surperficial 113a, the 113c that link to each other with side 113b, and its side 113b and lower surface 113c are pasted on the plastic 112, and upper surface 113a is pasted on the sheet metal 111 and electrically connects with sheet metal 111.The plane that makes plastic 112 be pasted with the lower surface 113c of aluminium foil 113 is bottom surface 112a, and then the lower surface 113c of aluminium foil 113 is narrow than the bottom surface 112a width of plastic 112, in order to avoid contact with second antenna 3.One sidewall 11a of first radiation arm 101 links to each other with second radiation arm 102.The 3rd radiation arm 103 of second Department of Radiation 12 and first radiation arm 101 are formed the first lengthwise metal arm 7, the 4th radiation arm 104 extends vertically downward from the 3rd radiation arm 103 ends, and the 3rd radiation arm 101 has triangle fluting 120 with respect to second radiation arm, 102 another sidewall 12b, changes the impedance matching of the shape adjustment antenna of lengthwise metal arm 7 by this.First Department of Radiation 11 of first antenna 2 is used for receiving or the emission lower frequency, and second Department of Radiation 12 is used for receiving or the emission upper frequency.
First connecting portion 20 comprises first linking arm 21 and second linking arm 22.First linking arm 21 is from second radiation arm, 102 vertical extent, and second linking arm 22 is from first linking arm, 21 vertical extent.Second radiation arm 102 and first connecting portion 20 are positioned at same plane, and simultaneously perpendicular to the first lengthwise sheet metal plane, 7 place and plane, the 4th radiation arm 104 place.First linking arm 21 and second radiation arm, 102 connecting places have a projection 30.This projection 30 is parallel to plane, the first lengthwise metal arm, 7 place perpendicular to plane, first connecting portion, 20 place, is used to connect the feeder line (not shown) of first antenna 2.Among other embodiment, the position of projection 30 can change, thereby changes the radiation frequency of Department of Radiation.
Second antenna 3 comprises second radiating element 40, second connecting portion 50 and grounding parts 6.Second connecting portion 50 comprises the 3rd linking arm 51 and the 4th linking arm 52, and wherein the 4th linking arm 52 is perpendicular to the 3rd linking arm 51.Second radiating element 40 comprises the 3rd Department of Radiation 43, the 4th Department of Radiation 44 and the 5th Department of Radiation 45.The 3rd Department of Radiation 43 comprises one " Z " type metal arm 404 and comprises bent over arms 406 and the 5th radiation arm 405 from bent over arms 406, the four Departments of Radiation 44 that metal arm 404 vertically extends." Z " type metal arm 404 of the 3rd Department of Radiation 43 comprises first side arm 431, second side arm 432 and the 3rd side arm 433.Wherein first side arm 431 links to each other with the 5th radiation arm 405, and second side arm 432 extends vertically downward from first side arm 431, and the 3rd side arm 433 is from second side arm, 432 vertical extent and parallel with first side arm 431.The 5th radiation arm 405 and first side arm 431 electrically connect and form the second lengthwise metal arm 8.Bent over arms 406 is extended from the 5th radiation arm 405 and first side arm, 431 junctions, and perpendicular to the second lengthwise metal arm 8.The 5th Department of Radiation 45 is perpendicular to bent over arms 406, and extends along being parallel to the 5th radiation arm 405 directions from bent over arms 406.The 5th Department of Radiation 45 and the 3rd linking arm 51 form the 3rd lengthwise metal arm 9.The second lengthwise metal arm 8 is parallel with the 3rd lengthwise metal arm 9 and fluting arranged between the two.There is a projection 70 the 5th Department of Radiation 45, bent over arms 406 and the 3rd linking arm 51 junctions, and this projection 70 is parallel to plane, the first lengthwise metal arm, 7 place perpendicular to plane, second connecting portion, 50 place, are used to connect the feeder line (not icon) of second antenna 3.In other embodiments, the position of projection 70 can change, thereby changes the emission or the receive frequency of Department of Radiation.The 3rd Department of Radiation 43 is used for emission or receives low radiation frequency, and the 4th Department of Radiation 44 is used for emission or receives higher radiation frequency, and the 5th Department of Radiation 45 is used to increase the frequency range of the 4th Department of Radiation 44.
First grounding parts 61 of grounding parts 6 is a metallic plate, and its two ends are extended first installation portion 4 and second installation portion, 5, the first installation portions 4 and second installation portion 5 respectively and formed a mounting plane.The end of first grounding parts 61 has an inverted "L" shaped raised line 63 with respect to the side of first installation portion 4, and raised line 63 comprises side arm 631 and parallel arms 632.The side arm 631 of raised line 63 is perpendicular to first grounding parts 61, and its parallel arms 632 is parallel to first grounding parts 61.Kink 62 1 ends link to each other with second linking arm 22 of first antenna 2, and the other end links to each other with the 4th linking arm 52 of second antenna 3.
The kink 62 of second radiation arm 102 of second antenna 3, first antenna 2 and first connecting portion 20, grounding parts 6 is positioned at same plane.The first lengthwise metal arm 7 is parallel with first grounding parts 61.
In the present embodiment, sheet metal 111 with a plastic 112 and first antenna 2 is pasted, because sheet metal 111 is different with the dielectric constant of plastic 112, have Department of Radiation length shorter before more laminating 112 in the time of can making first Department of Radiation 11 of the antenna 2 of winning reach same radiation frequency, but can have influence on the emittance of antenna like this.Again aluminium foil 113 is pasted on the plastic 112, aluminium foil 113 has changed radiation path, the length and the area of first Department of Radiation 11 have been increased, make that not increasing Department of Radiation length still can reach satisfactory radiation frequency, because aluminium foil 113 is " ㄈ " shape, has therefore increased the radiation path of first antenna 2, thereby increased the frequency range of first antenna 2 simultaneously, strengthen the emittance of first antenna 2, remedied the deficiency of only using plastic 112.Therefore this execution mode can shorten the length of Department of Radiation as far as possible at the radiation frequency that guarantees first antenna 2 under the enough frequency ranges and the situation of emittance, reduces the volume of first antenna 2.The 3rd Department of Radiation 43 of second antenna 3 is " Z " font, utilizes the bending design to reduce the relative length of this Department of Radiation.Therefore first Department of Radiation 11 (being used for low frequency radiation) that is operated in first antenna 2 of wireless wide area network passes through the utilization of plastic 112 and aluminium foil 113, the shaped design of the 3rd Department of Radiation 43 (being used for low frequency radiation) by Department of Radiation that is operated in second antenna 3 of WLAN (wireless local area network) makes both Department of Radiation length separately all shorten relatively, open end is far away as far as possible between two liang of antennas, thereby effectively reduces interfering with each other of first antenna 2 and 3 receptions of second antenna and radiation.Certainly aluminium foil 113 also can be used other metal in other embodiments, for example Copper Foil etc.
Claims (10)
1. multifrequency antenna, comprise first antenna that is used for wireless wide area network, be used for second antenna of WLAN (wireless local area network) and be the grounding parts that first antenna and second antenna are shared, it is characterized in that: first radiation arm that described first antenna has comprises sheet metal, be fixed on the plastic on the sheet metal and be fixed on metal forming on the plastic.
2. multifrequency antenna as claimed in claim 1 is characterized in that: described grounding parts comprises first grounding parts and kink.
3. multifrequency antenna as claimed in claim 1 is characterized in that: described sheet metal is L-shaped, and it has a wider part and a narrower part.
4. multifrequency antenna as claimed in claim 2 is characterized in that: described plastic and sheet metal are pasted with respect to the surface of first grounding parts, and the one side and second antenna are bonding, and plastic is the bottom surface with respect to the plane of first grounding parts.
5. multifrequency antenna as claimed in claim 2 is characterized in that: the shape of described plastic and sheet metal shape are worked in coordination; Plastic is a cuboid, has a raised line to engage with the narrower part of sheet metal on it, make raised line and sheet metal with opposing surperficial in the same plane of first grounding parts.
6. multifrequency antenna as claimed in claim 1 is characterized in that: described metal forming is " ㄈ " shape, comprises side and upper and lower surface.
7. multifrequency antenna as claimed in claim 6, it is characterized in that: the lower surface of described metal forming is pasted on the bottom surface of plastic, upper surface is pasted on the sheet metal and electrically connects with sheet metal, and the lower surface of metal forming is narrow than the bottom width of plastic, in order to avoid contact with second antenna.
8. multifrequency antenna as claimed in claim 1 is characterized in that: described first antenna comprises first radiating element, first connecting portion and the aforementioned grounding parts with first Department of Radiation and second Department of Radiation; Wherein first Department of Radiation comprises first radiation arm and second radiation arm, and second Department of Radiation comprises second radiation arm, the 3rd radiation arm and the 4th radiation arm.
9. multifrequency antenna as claimed in claim 8 is characterized in that: wherein said second antenna has one the 3rd Department of Radiation, and the 3rd Department of Radiation comprises one " Z " type metal arm.
10. multifrequency antenna as claimed in claim 2 is characterized in that: an inverted "L" shaped raised line is arranged on wherein said first grounding parts, and this raised line comprises a side arm and a parallel arms, and wherein side arm is perpendicular to first grounding parts, and parallel arms is parallel to first grounding parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101231659A CN1983713B (en) | 2005-12-14 | 2005-12-14 | Multi-frequency antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101231659A CN1983713B (en) | 2005-12-14 | 2005-12-14 | Multi-frequency antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1983713A true CN1983713A (en) | 2007-06-20 |
| CN1983713B CN1983713B (en) | 2012-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101231659A Expired - Fee Related CN1983713B (en) | 2005-12-14 | 2005-12-14 | Multi-frequency antenna |
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| CN (1) | CN1983713B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901964A (en) * | 2009-05-25 | 2010-12-01 | 神讯电脑(昆山)有限公司 | Antenna structure |
| CN101359778B (en) * | 2007-07-30 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Antenna assembly piece |
| CN101431188B (en) * | 2007-11-09 | 2013-05-08 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
| CN104241871A (en) * | 2013-06-06 | 2014-12-24 | 深圳富泰宏精密工业有限公司 | Multi-band antenna and wireless communication apparatus using the same |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4164737A (en) * | 1977-09-22 | 1979-08-14 | Trailer Eye, Inc. | Directional trailer turning signaling device |
| CN2706885Y (en) * | 2004-05-13 | 2005-06-29 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency aerial |
-
2005
- 2005-12-14 CN CN2005101231659A patent/CN1983713B/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101359778B (en) * | 2007-07-30 | 2012-07-18 | 富士康(昆山)电脑接插件有限公司 | Antenna assembly piece |
| CN101431188B (en) * | 2007-11-09 | 2013-05-08 | 富士康(昆山)电脑接插件有限公司 | Multi-frequency antenna |
| CN101901964A (en) * | 2009-05-25 | 2010-12-01 | 神讯电脑(昆山)有限公司 | Antenna structure |
| CN104241871A (en) * | 2013-06-06 | 2014-12-24 | 深圳富泰宏精密工业有限公司 | Multi-band antenna and wireless communication apparatus using the same |
| CN104241871B (en) * | 2013-06-06 | 2019-07-12 | 深圳富泰宏精密工业有限公司 | The wireless communication device of multifrequency antenna and the application multifrequency antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1983713B (en) | 2012-10-31 |
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