CN2901601Y - Multiple frequency antenna and applied movable device - Google Patents

Multiple frequency antenna and applied movable device Download PDF

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Publication number
CN2901601Y
CN2901601Y CNU2006201151283U CN200620115128U CN2901601Y CN 2901601 Y CN2901601 Y CN 2901601Y CN U2006201151283 U CNU2006201151283 U CN U2006201151283U CN 200620115128 U CN200620115128 U CN 200620115128U CN 2901601 Y CN2901601 Y CN 2901601Y
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China
Prior art keywords
adjustment part
multifrequency antenna
essence
low
mobile device
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Expired - Lifetime
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CNU2006201151283U
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Chinese (zh)
Inventor
郑平熙
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Wistron Neweb Corp
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Wistron Neweb Corp
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Priority to CNU2006201151283U priority Critical patent/CN2901601Y/en
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Abstract

The utility model relates to a multiband antenna comprising a radiating element, an earth connection element and a connecting element. The connecting element includes a first end and a second end, wherein the first end is connected with the radiating element, and the second element is connected with the earth connection element to form a narrow opening between the two elements. The earth connection element includes an earth connection body part and several polygonal evaginating parts, wherein the polygonal evaginating parts extend respectively to the earth connection body parts, and the polygonal evaginating parts are around the earth connection body parts.

Description

The mobile device of multifrequency antenna and application thereof
Technical field
The utility model relates to the mobile device of a kind of antenna and application thereof, relates in particular to the mobile device of a kind of multifrequency antenna and application thereof.
Background technology
Because mobile communication product is general, the signal transmission between the various mobile devices all utilizes wireless transmission, and this has also brought up the development of antenna.Especially, what modern mobile communication product was stressed is light, thin, short, little, and therefore, the structure of antenna is miniaturization thereupon also.
Because mobile phone and notebook computer have almost become common people's indispensable electronic product of living,, can bring bigger facility for the user if therefore both integration can be become one.Yet, because general mobile phone antenna is at voltage standing wave ratio (Voltage Standing Wave Ratio, VSWR) less than under 4 the condition, frequency range during low frequency (for example 800MHz) is only had an appointment about 70MHz, frequency range during high frequency (for example 1800MHz) is only had an appointment about 120MHz, and mobile phone antenna efficient is about about 20~30%, if therefore mobile phone antenna of the prior art is installed in the notebook computer, can't produce good effect usually.
Prior art has disclosed the wideer dual-band antenna of the more traditional mobile phone antenna of a kind of frequency range.Please refer to the antenna 9 that Figure 1A has disclosed in United States Patent (USP) notification number 6,861,986 about prior art, it has radiant element 91, Connection Element 92 and earth element 93.Wherein, Connection Element 92 has first end 921 and second end 922; And first end 921 of Connection Element 92 is connected to radiant element 91, the second ends 922 and is connected to earth element 93.The system that antenna 9 sees through coaxial cable 100 and its application apparatus (for example notebook computer or mobile phone etc.) reaches and is electrical connected, and wherein the load point F of coaxial cable 100 and earth point G are shown in Figure 1A.Figure 1B is depicted as according to the voltage standing wave ratio of the traditional antenna of Figure 1A test when the different frequency and changes.
The ground connection effect of antenna 9 mainly is the noise ratio that reduces application system (for example notebook computer or cell phone system).Therefore, can produce the zone of monoblock traditionally, for example monoblock rectangle/square earth element 93 shown in Figure 1A at the earth element 93 of antenna 9.This large-area earth element 93, its CURRENT DISTRIBUTION is wayward, and therefore, the antenna dealer improves at radiant element 91 usually.In other words,, just need to change the structure of radiant element 91 usually, even adopt the radiant element 91 of stereochemical structure if adjust a shape.
Summary of the invention
In view of the existing in prior technology problem, the utility model is the mobile device that a kind of multifrequency antenna and application thereof are provided.
A purpose of the present utility model provides a kind of multifrequency antenna and application thereof.Another purpose of the present utility model provides a kind of multifrequency antenna and application thereof of wideband.A purpose more of the present utility model provides preferable multifrequency antenna and the application thereof of a kind of impedance matching (impedance match).
An embodiment of the present utility model is a kind of multifrequency antenna.Another embodiment of the present utility model then is applied to mobile device with multifrequency antenna.
Multifrequency antenna of the present utility model comprises radiant element, earth element and Connection Element.Connection Element has first end and one or two ends, and wherein first end is connected to radiant element, and second end is connected to earth element, so that form a slit opening between this Connection Element and this earth element.
This earth element comprises the outer teat of ground connection body and a plurality of polygon, wherein should be a plurality of polygon evagination portion extend respectively from this ground connection body, and the teat essence summary outward of this a plurality of polygons is round the ground connection body.
In an embodiment of multifrequency antenna, its material ocean copper-nickel alloy, it is rectangular-shaped that this radiant element is foldable to essence.Wherein this radiant element is folding forms first Department of Radiation and second Department of Radiation afterwards, and wherein the length of first Department of Radiation is greater than second Department of Radiation.
In another embodiment of multifrequency antenna, its material is FR4 (Flame Resistant 4).In the present embodiment, multifrequency antenna further comprises the low-and high-frequency adjustment part, and it extends from this earth element, and wherein the slit opening essence between this low-and high-frequency adjustment part and the Connection Element slightly is inverted L shape.
Further, this low-and high-frequency adjustment part comprises first adjustment part and second adjustment part, and this first adjustment part and second adjustment part make low-and high-frequency adjustment part essence slightly be the U type.Wherein this first adjustment part essence is less than this second adjustment part.In addition, this low-and high-frequency adjustment part also comprises the 3rd adjustment part, and extend from this first adjustment part and this second adjustment part, so that the slit opening essence between low-and high-frequency adjustment part and the Connection Element slightly is inverted L shape the 3rd adjustment part.
In addition, above-mentioned multifrequency antenna can be applicable to various mobile devices, and for example notebook computer, mobile phone or PDA(Personal Digital Assistant), these mobile devices all have emission and receive the function of wireless signal.The wireless signal module that this mobile device comprises above-mentioned multifrequency antenna and is electrical connected with it, can receive wireless signal and be sent to the wireless signal module by this antenna, and the signal of this wireless signal module can utilize antenna emission of the present utility model, reaches the function of emission and reception wireless signal by this.
Description of drawings
Figure 1A is the schematic diagram of traditional antenna;
Figure 1B changes according to the antenna test of Figure 1A voltage standing wave ratio when the different frequency;
Fig. 2 A and Fig. 2 B are embodiment of multifrequency antenna of the present utility model, show the schematic perspective view of different angles respectively;
Fig. 2 C shows its front elevation according to Fig. 2 A;
Fig. 3 is another embodiment of antenna of the present utility model;
Fig. 4 A is according to Fig. 2 A, shows the field deformationization on its x-y plane when different frequency;
Fig. 4 B is according to Fig. 2 A, shows its usefulness when different frequency;
Fig. 4 C is according to Fig. 2 A, shows that its voltage standing wave ratio when different frequency changes;
Fig. 5 A is according to Fig. 3, shows the field deformationization on its x-y plane when different frequency;
Fig. 5 B is according to Fig. 3, shows its usefulness when different frequency;
Fig. 5 C is according to Fig. 3, shows that its voltage standing wave ratio when different frequency changes;
Fig. 6 is according to mobile device of the present utility model, shows its system's block schematic diagram;
Fig. 7 A~Fig. 7 C is the different embodiment that show mobile device of the present utility model respectively.
Embodiment
For above-mentioned and other purposes, feature and advantage of the present utility model can be become apparent, cited below particularlyly go out specific embodiment, and cooperate appended graphicly, be described in detail below.
An embodiment of the present utility model is a kind of multifrequency antenna.Another embodiment of the present utility model then is applied to mobile device with multifrequency antenna.
Please also refer to Fig. 2 A, 2B and 2C, it shows an embodiment of multifrequency antenna of the present utility model.Multifrequency antenna 2 of the present utility model comprises radiant element 21, earth element 22 and Connection Element 23.Connection Element 23 has first end 231 and second end 232, and wherein first end 231 is connected to radiant element 21, the second ends 232 and is connected to earth element 22, so that form slit opening 233 between this Connection Element 23 and this earth element 22.Similar ground, the load point F of coaxial cable 100 and earth point G are shown in Fig. 2 C.
This earth element 22 comprises the outer teat 222 of ground connection body 221 and a plurality of polygons, wherein the outer teat 222 of polygon is depicted as rectangle in the present embodiment, right its is not in order to restriction the utility model, and the outer teat 222 of polygon can also be triangle, pentagon or other polygons.The outer teat 222 of these a plurality of polygons extends respectively from this ground connection body 221, and outer teat 222 essence of these a plurality of polygons are slightly round ground connection body 221.By the design of earth element 22, can change the CURRENT DISTRIBUTION of multifrequency antenna 2, and the field shape that obtains to be desired, for example be the field shape of omni-directional (omnidirectional) or directivity (directional).In the present embodiment,, can be depicted as the field shape that slightly becomes to be omni-directional (omnidirectional) as Fig. 4 A according to the design of earth element 22.
In the present embodiment, please get back to Fig. 2 B, the material of multifrequency antenna 2 is foreign copper-nickel alloy, and it is rectangular-shaped that this radiant element 21 is foldable to essence.Wherein this radiant element 21 forms first Department of Radiation 211 and second Departments of Radiation 212 (shown in Fig. 2 B) after folding, and the preferably is that the length of first Department of Radiation 211 is greater than second Department of Radiation 212.The design of this radiant element 21 can be so that the frequency range of multifrequency antenna 2 strengthens, and especially (for example 800~900MHz) frequency range strengthens during low frequency.
Please refer to Fig. 4 B and Fig. 4 C, its multifrequency antenna 2 according to present embodiment shows test results, just the usefulness of multifrequency antenna 2 when different frequency and the variation of voltage standing wave ratio.By can finding significantly in graphic, the voltage standing wave ratio of multifrequency antenna 2 of the present utility model during at low frequency or at high frequency is all better than traditional antenna 90 (shown in Figure 1A and Figure 1B).
Please refer to Fig. 3 in another embodiment of multifrequency antenna, its material is FR4 (Flame Resistant 4), material behavior by FR4 more can make multifrequency antenna 3 be applied in different shell (not shown)s, for example, when shell was cambered surface, multifrequency antenna 3 also can be attached to the inner surface of shell.
In the present embodiment, multifrequency antenna 3 comprises radiant element 31, earth element 32 and Connection Element 33.Connection Element 33 has first end 331 and second end 332, and wherein first end 331 is connected to radiant element 31, the second ends 332 and is connected to earth element 32, so that form a slit opening 333 between this Connection Element 33 and this earth element 32.
This earth element 32 is to comprise the outer teat 322 of ground connection body 321 and a plurality of polygons, and the outer teat 322 of these a plurality of polygons extends respectively from this ground connection body 321, and outer teat 322 essence of these a plurality of polygons are slightly round ground connection body 321.
In addition, multifrequency antenna 3 also further comprises low-and high-frequency adjustment part 34, and it extends from this earth element 32, and wherein slit opening 333 essence between this low-and high-frequency adjustment part 34 and the Connection Element 33 slightly are inverted L shape.Similar ground, the load point F of coaxial cable 100 and earth point G are as shown in Figure 3.
Further, this low-and high-frequency adjustment part 34 comprises first adjustment part 341 and second adjustment part 342, and this first adjustment part 341 and second adjustment part 342 can make low-and high-frequency adjustment part 34 whole essence slightly be the U type.Wherein these first adjustment part, 341 essence are less than this second adjustment part 342.For instance, the design of first adjustment part 341 can influence low frequency (810~960MHz) frequency for example, 342 of second adjustment parts can influence high frequency (1700~2170MHz) wavelength length for example.
In addition, this low-and high-frequency adjustment part comprises that also the 3rd adjustment part 343, the three adjustment parts, 343 extensions are from this first adjustment part 341 and this second adjustment part 342, so that slit opening 333 essence between low-and high-frequency adjustment part 34 and the Connection Element 33 slightly are inverted L shape.The design of the 3rd adjustment part 343 also can make the frequency range of low frequency strengthen.Please refer to Fig. 5 A, show the field deformationization on the x-y plane of multifrequency sky shown in Figure 3 existing 3 when different frequency.Voltage standing wave ratio when Fig. 5 B and Fig. 5 C then are presented at different frequency respectively changes and usefulness.
In addition, above-mentioned multifrequency antenna 2 or 3 (comprise between the radiation element of different embodiment 31 and earth element 32) can be applicable to various mobile device.As shown in Figure 6, mobile device 4 has emission and receives the function of wireless signal, and mobile device 4 comprises above-mentioned multifrequency antenna 2 or 3, and comprises the wireless signal module 41 that is electrical connected with multifrequency antenna 2 or 3.Mobile device 4 can receive wireless signal and be sent to wireless signal module 41 by multifrequency antenna 2 or 3, and the signal of wireless signal module 41 also can utilize multifrequency antenna 2 or 3 to be emitted to other devices (not shown), reaches the emission of mobile device 4 by this and receives the function of wireless signal.
Please refer to 7A~Fig. 7 C, mobile device 4 of the present utility model can be notebook computer 4a, mobile phone 4b or PDA(Personal Digital Assistant) 4c, these mobile devices 4a, 4b or 4c contain multifrequency antenna 2 or 3 respectively, therefore can reach the function of emission and reception wireless signal by multifrequency antenna 2, wherein multifrequency antenna 2 or 3 position are not limited to shown in Fig. 7 A~Fig. 7 C, the design of multifrequency antenna 2 or 3 the visual mobile device 4 in position just and be positioned at different positions.
Though the utility model discloses as above with specific embodiment; right its is not in order to limit the utility model; any those of ordinary skills; in not breaking away from spirit and scope of the present utility model; when can doing a little change and retouching, therefore protection range of the present utility model is when looking appended being as the criterion that claim scope defined.

Claims (19)

1, a kind of multifrequency antenna is characterized in that comprising:
Radiant element;
Earth element comprises the outer teat of ground connection body and a plurality of polygon, wherein should be a plurality of polygon evagination portion extend respectively from this ground connection body, and the teat essence summary outward of this a plurality of polygons is round this ground connection body; And
Connection Element has first end and second end, and this first end is connected to this radiant element, and this second end is connected to this earth element, makes by this and forms a slit opening between this Connection Element and this earth element.
2, multifrequency antenna as claimed in claim 1, it is rectangular-shaped to it is characterized in that this radiant element is folded into essence.
3, multifrequency antenna as claimed in claim 1 is characterized in that further comprising the low-and high-frequency adjustment part, and it extends from this earth element, and wherein this slit opening essence between this low-and high-frequency adjustment part and this Connection Element slightly is inverted L shape.
4, multifrequency antenna as claimed in claim 3 is characterized in that this low-and high-frequency adjustment part comprises first adjustment part and second adjustment part, so that this low-and high-frequency adjustment part essence slightly is the U type.
5, multifrequency antenna as claimed in claim 4, it is characterized in that this low-and high-frequency adjustment part also comprises the 3rd adjustment part, it extends from this first adjustment part and this second adjustment part, makes this slit opening essence between this low-and high-frequency adjustment part and this Connection Element slightly be inverted L shape.
6, multifrequency antenna as claimed in claim 4 is characterized in that this first adjustment part essence is less than this second adjustment part.
7, multifrequency antenna as claimed in claim 2 it is characterized in that this radiant element forms first Department of Radiation and second Department of Radiation after folding, and the length of this first Department of Radiation is greater than this second Department of Radiation.
8, as the multifrequency antenna as described in the claim 2, the material that it is characterized in that this multifrequency antenna is foreign copper-nickel alloy.
9, multifrequency antenna as claimed in claim 1, the material that it is characterized in that this multifrequency antenna is FR4.
10, a kind of mobile device has the function of emission and reception wireless signal, it is characterized in that this mobile device comprises:
The wireless signal module; And
Multifrequency antenna, itself and this wireless signal module is electrical connected, and this multifrequency antenna comprises:
Radiant element;
Earth element, it comprises the outer teat of ground connection body and a plurality of polygon, wherein should be a plurality of polygon evagination portion extend respectively from this ground connection body so that the teat essence summary outward of this a plurality of polygons is round this ground connection body; And
Connection Element has first end and second end, and this first end is connected to this radiant element, and this second end is connected to this earth element, makes by this and forms a slit opening between this Connection Element and this earth element.
11, mobile device as claimed in claim 10 is characterized in that this mobile device is notebook computer, mobile phone or personal digital assistant.
12, mobile device as claimed in claim 10, it is rectangular-shaped to it is characterized in that this radiant element is folded into essence.
13, mobile device as claimed in claim 10 is characterized in that this multifrequency antenna further comprises the low-and high-frequency adjustment part, and it extends from this earth element, and wherein this slit opening essence between this low-and high-frequency adjustment part and this Connection Element slightly is inverted L shape.
14, mobile device as claimed in claim 13 is characterized in that this low-and high-frequency adjustment part comprises first adjustment part and second adjustment part, so that this low-and high-frequency adjustment part essence slightly is the U type.
15, mobile device as claimed in claim 14, it is characterized in that this low-and high-frequency adjustment part also comprises the 3rd adjustment part, it extends from this first adjustment part and this second adjustment part, makes this slit opening essence between this low-and high-frequency adjustment part and this Connection Element slightly be inverted L shape.
16, mobile device as claimed in claim 14 is characterized in that this first adjustment part essence is less than this second adjustment part.
17, mobile device as claimed in claim 12 it is characterized in that this radiant element forms first Department of Radiation and second Department of Radiation after folding, and the length of this first Department of Radiation is greater than this second Department of Radiation.
18, running gear as claimed in claim 12, the material that it is characterized in that this multifrequency antenna are foreign copper-nickel alloys.
19, running gear as claimed in claim 11, the material that it is characterized in that this multifrequency antenna is FR4.
CNU2006201151283U 2006-05-16 2006-05-16 Multiple frequency antenna and applied movable device Expired - Lifetime CN2901601Y (en)

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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465470B (en) * 2007-12-21 2012-07-04 启碁科技股份有限公司 Antenna structure and relevant wireless communication device
CN101662066B (en) * 2008-08-25 2012-09-05 智易科技股份有限公司 Dual-band antenna of integrated GSM wireless communication equipment
CN101465469B (en) * 2007-12-21 2012-10-03 启碁科技股份有限公司 Antenna structure and relevant wireless communication device
CN107369901A (en) * 2017-09-08 2017-11-21 联想(北京)有限公司 A kind of antenna assembly and communication electronic equipment

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101465470B (en) * 2007-12-21 2012-07-04 启碁科技股份有限公司 Antenna structure and relevant wireless communication device
CN101465469B (en) * 2007-12-21 2012-10-03 启碁科技股份有限公司 Antenna structure and relevant wireless communication device
CN101662066B (en) * 2008-08-25 2012-09-05 智易科技股份有限公司 Dual-band antenna of integrated GSM wireless communication equipment
CN107369901A (en) * 2017-09-08 2017-11-21 联想(北京)有限公司 A kind of antenna assembly and communication electronic equipment

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