CN201185228Y

CN201185228Y - Antennae

Info

Publication number: CN201185228Y
Application number: CN 200820044500
Authority: CN
Inventors: 杨文杰; 吴裕源; 施凯; 吴欣总
Original assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Current assignee: Foxlink Electronics Dongguan Co Ltd; Cheng Uei Precision Industry Co Ltd
Priority date: 2008-02-29
Filing date: 2008-02-29
Publication date: 2009-01-21
Anticipated expiration: 2018-02-28

Abstract

The utility model discloses an antenna, comprising a grounding face and a main antenna and a parasitic antenna extruding out of the grounding face, the parasitic antenna is wound around the main antenna and coupled with the main antenna. Because a parasitic antenna coupled with the main antenna is added, the utility model can not only send and receive ultra-wide signals but also send and receive blue-tooth signals, thereby, a separate blue-tooth antenna is saved, the structure of the antenna is simplified, and the room occupied in a portable terminal such as a notebook computer, etc. is reduced.

Description

Antenna

Technical field

The utility model relates to a kind of antenna, relates in particular to a kind of antenna that is applied to portable terminals such as notebook computer.

Background technology

In order to realize portable terminal such as notebook computer and outside wireless transmission, general the antenna that an antenna and that is used for bluetooth is used to receive and dispatch ultra-broadband signal is set in portable terminal inside such as notebook computers.Yet the trend of all oriented miniaturization development of portable terminals such as present notebook computer adopts two antennas to make structure complicated, can increase its space shared in portable terminals such as notebook computer, does not meet the trend of miniaturization development.

The utility model content

The purpose of this utility model is the defective at above-mentioned prior art existence, and a kind of antenna is provided, and this antenna structure is simple, can reduce its space required in portable terminals such as notebook computer.

For achieving the above object, antenna provided by the utility model comprise a ground plane and from the ground plane an extended main antenna and post unit and give birth to part, parasitic antenna is coupled around the main antenna setting and with main antenna.

As mentioned above, the utility model antenna by increase by one can with the parasitic antenna of main antenna generation coupling, thereby not only can receive and dispatch ultra-broadband signal, but bluetooth, thereby can save independent Bluetooth antenna, simplify antenna structure, reduce its space shared in portable terminals such as notebook computer.

Description of drawings

Fig. 1 is the stereogram of the utility model antenna.

Fig. 2 is voltage standing wave ratio (Voltage Standing WaveRatio, the VSWR) resolution chart of antenna shown in Figure 1.

Description of reference numerals among the figure is as follows:

Antenna 100 ground planes 10

First edge, 11 main antennas 20

Connecting portion 21 first Departments of Radiation 22

Base portion 221 first extensions 222

Second extension, 223 second Departments of Radiation 23

Feeding portion 24 load points 241

The 3rd Department of Radiation 25 parasitic antennas 30

Vertical portion 31 first Parasiticas 40

Second Parasitica 41

Embodiment

By describing technology contents of the present invention, structural feature in detail, being realized purpose and effect, exemplify below that specific embodiment and conjunction with figs. are detailed gives explanation.

See also Fig. 1, the utility model antenna 100 is made by metal material, comprises a ground plane 10, a main antenna 20 and a parasitic antenna 30.

Ground plane 10 is rectangular laminar, has one first edge 11.

Main antenna 20 comprises connecting portion 21, first Department of Radiation 22, second Department of Radiation 23, feeding portion 24 and the 3rd Department of Radiation 25.Connecting portion 21 extends upward from 11 vertical junction ground 10, first edge and forms.First Department of Radiation 22 extends from connecting portion 21 and forms, and comprises vertical connecting portion 21 bendings are extended from the end of connecting portion 21 first extension 222, the base portion 221 that extends perpendicular to first extension 222 from the end of first extension 222 and from the vertical base portion 221 of an end of base portion 221 and be parallel to second extension 223 that first extension 222 extends.Base portion 221, first extension 222 and second extension 223 are parallel to ground plane 10.Second Department of Radiation 23 forms to 222 extensions of first extension from inboard vertical second extension 223 of second extension 223, and second Department of Radiation 23 and first Department of Radiation 22 are positioned at same plane.Feeding portion 24 forms from vertical junction ground, end 10 extension downwards of second extension 223 of first Department of Radiation 22, and feeding portion 24 is provided with a load point 241.The 3rd Department of Radiation 25 forms to connecting portion 21 extensions from the inboard vertical feeding portion 24 of feeding portion 24.Feeding portion 24 and the 3rd Department of Radiation 25 are positioned at same plane with connecting portion 21.

Parasitic antenna 30 is a capacity coupler, it is provided with around main antenna 20, comprises first Parasitica 32 of the 11 upwardly extending vertical portions 31, first edge on vertical junction ground 10, the 31 bending extensions of vertical vertical portion and second Parasitica 33 that vertical first Parasitica 32 extends.Second extension, 223, the second Parasiticas 33 that first Parasitica 32 is parallel to first Department of Radiation 22 are parallel to the base portion 221 of first Department of Radiation 22.

When the utility model antenna 100 was used for wireless telecommunications, electric current was by this antenna 100 of load point 241 feed-ins.When electric current flow to first Department of Radiation 22 by feeding portion 24, antenna 100 can be received and dispatched the high-frequency signal in 3～4GHz scope; When electric current flow to second Department of Radiation 23 by feeding portion 24, antenna 100 can be received and dispatched the high-frequency signal in 4～6GHz scope; And when electric current flow to the 3rd Department of Radiation 25 by load point 241, antenna 100 can be received and dispatched the ultra-high frequency signal in 6～8GHz scope.Parasitic antenna 30 can be received and dispatched signal in 2.4～2.5GHz scope by coupling effect, and this frequency band is the bandwidth of bluetooth.

See also Fig. 2, when the utility model antenna 100 works in 2.412GHz (as number in the figure 1), 2.462GHz (as number in the figure 2), 3GHz (as number in the figure 3), 4GHz (as number in the figure 4), 5GHz (as number in the figure 5), 6GHz (as number in the figure 6) and 7GHz (as number in the figure 7) respectively, its voltage standing wave ratio is respectively 1.584,1.544,2.511,2.303,2.436,2.228 and 1.653, meets voltage standing wave ratio less than 2 or 3 designing requirement.

As mentioned above, the parasitic antenna 30 of couplings can take place with the main antenna 20 of transmitting-receiving ultra-broadband signal in the utility model antenna 100 by increase by, thereby not only can receive and dispatch 3GHz～8GHz ultra-broadband signal, and can receive and dispatch 2.4GHz～2.5GHz Bluetooth signal, thereby can save independent Bluetooth antenna, simplify antenna structure, reduce its space shared in portable terminals such as notebook computer.

Claims

1. antenna is characterized in that: comprise a ground plane and from the ground plane an extended main antenna and a parasitic antenna, parasitic antenna is coupled around the main antenna setting and with main antenna.

2. antenna according to claim 1, it is characterized in that: main antenna comprises connecting portion, first Department of Radiation, second Department of Radiation, feeding portion and the 3rd Department of Radiation, ground plane has first edge, connecting portion extends upward from first edge-perpendicular and forms, first Department of Radiation forms from the connecting portion extension, and second Department of Radiation forms from the extension of first Department of Radiation, and feeding portion forms from the extension of first Department of Radiation, feeding portion is provided with load point, and the 3rd Department of Radiation forms from the feeding portion extension.

3. antenna according to claim 2, it is characterized in that: first Department of Radiation comprises that vertical connecting portion bends first extension that extends from the end of connecting portion, the base portion that extends perpendicular to first extension from the end of first extension reaches from the vertical base portion of an end of base portion and be parallel to second extension that first extension extends, and base portion, first extension and second extension are parallel to ground plane.

4. antenna according to claim 3, it is characterized in that: parasitic antenna comprises the upwardly extending vertical portion, first edge on vertical junction ground, first Parasitica of vertical vertical portion bending extension and second Parasitica that vertical first Parasitica extends, first Parasitica is parallel to second extension of first Department of Radiation, and second Parasitica is parallel to the base portion of first Department of Radiation.

5. antenna according to claim 3 is characterized in that: second Department of Radiation extends to first extension from inboard vertical second extension of second extension of first Department of Radiation, and second Department of Radiation and first Department of Radiation are positioned at same plane.

6. antenna according to claim 3 is characterized in that: feeding portion for from the end vertical junction of second extension of first Department of Radiation face down and extend to form.

7. antenna according to claim 6 is characterized in that: the 3rd Department of Radiation forms for the inboard vertical feeding portion from feeding portion extends to connecting portion, and feeding portion, the 3rd Department of Radiation and connecting portion are in same plane.