CN2612086Y - Converse f-shape dual frequency antenna electronic device with wireless communication function - Google Patents
Converse f-shape dual frequency antenna electronic device with wireless communication function Download PDFInfo
- Publication number
- CN2612086Y CN2612086Y CNU032384483U CN03238448U CN2612086Y CN 2612086 Y CN2612086 Y CN 2612086Y CN U032384483 U CNU032384483 U CN U032384483U CN 03238448 U CN03238448 U CN 03238448U CN 2612086 Y CN2612086 Y CN 2612086Y
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- plane conduct
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Abstract
The utility model provides a reverse-F dual-frequency antenna, used on a mobile electric device with wireless communication function, comprising a first plane conductor element and a second plane conductor element, wherein the first plane conductor element is a L-type structure with a signal feed point for transmitting a received signal to the mobile electric device, the second plane conductor element is rectangle and vertical to the first plane conductor element and connected with one joint point while the joint point defines the second plane conductor element into two portions to respectively receives two signals in two frequencies.
Description
Technical field
The electronic installation that the utility model relates to a kind of reversed F-typed dual-band antenna and has wireless communication function particularly relates to a kind of mobile electronic device that reversed F-typed dual-band antenna is used to have wireless communication function.
Background technology
Along with people are more and more high for the demand of wireless telecommunications, many double-frequency wireless communication antennas that are installed in mobile electronic device appear on the market successively.
For easy to carry, usually the size of mobile electronic device all design very mini, will be subjected to restriction on the space and be installed in dual-band antenna on this electronic installation, need on receiving efficiency and apparent size, make trade-offs.Fig. 1 is an existing double frequency antenna, and it comprises one first receiving terminal 101 and one second receiving terminal 103, is respectively a long strip type structure, and its length is relevant with receive frequency, and received frequency is sent to electronic installation via a load point 105.This antenna adopts plane formula so design is gone up, but can have influence on receiving efficiency for yielding to mobile electronic device.
The utility model content
The purpose of this utility model is to provide a kind of reversed F-typed dual-band antenna that is installed on the mobile electronic device, and it has excellent reception, and its big I is contained in the limited electronic installation in space simultaneously.
The purpose of this utility model is achieved in that promptly provides a kind of reversed F-typed dual-band antenna, in order to receive the signal of a first frequency and a second frequency, comprising: one first plane conduct component; And one second plane conduct component, vertical with this first plane conduct component and be provided with a first and a second portion, this first has one first limit, and this second portion has one second limit; Wherein this first is used for receiving the signal of this first frequency, this second portion is used for receiving the signal of this second frequency, this first plane conduct component and this second plane conduct component are connected in a contact, this contact is positioned at should first and the position that has a common boundary of this second portion, the length on this first limit is about 1/4th of the corresponding wavelength of this first frequency, and the length on this second limit is about 1/4th of the corresponding wavelength of this second frequency.
The utility model also provides a kind of reversed F-typed dual-band antenna, in order to receive the signal of a first frequency and a second frequency, comprising: one first plane conduct component; One second plane conduct component, vertical with this first plane conduct component and be provided with a first and a second portion, this first has one first limit, this second portion has one second limit, this first is used for receiving the signal of this first frequency, and this second portion is used for receiving the signal of this second frequency; One flat base, vertical with this second plane conduct component, for this dual-band antenna being fixed on the device; One plane grounding assembly is vertical with this second plane conduct component; And a coupling assembling, in order to this first plane conduct component and this plane grounding assembly are connected with this flat base; Wherein, this first plane conduct component and this second plane conduct component are connected in a contact, this contact is positioned at should first and the position that has a common boundary of this second portion, the length on this first limit is about 1/4th of the corresponding wavelength of this first frequency, and the length on this second limit is about 1/4th of the corresponding wavelength of this second frequency.
The utility model also provides a kind of electronic installation with wireless communication function, comprising: a reversed F-typed dual-band antenna in order to receive the signal of a first frequency and a second frequency, comprising: one first plane conduct component; One second plane conduct component, vertical with this first plane conduct component, this second plane conduct component is provided with a first and a second portion, and this first has one first limit, and this second portion has one second limit; And a plane grounding assembly, vertical with this second plane conduct component; One flat base, vertical with this second plane conduct component, for being fixed on this electronic installation by reversed F-typed dual-band antenna; And a coupling assembling, in order to this first plane conduct component and this plane grounding assembly are connected with this flat base; Wherein this first plane conduct component and this second plane conduct component are connected in a contact, this contact is positioned at should first and the position that has a common boundary of this second portion, the length on this first limit is about 1/4th of the corresponding wavelength of this first frequency, and the length on this second limit is about 1/4th of the corresponding wavelength of this second frequency.
Further, dual-band antenna of the present utility model comprises one first plane conduct component, one second plane conduct component, a plane grounding assembly, a flat base and a coupling assembling.First plane conduct component is vertical with second plane conduct component, is sent to mobile electronic device in order to the signal that will receive.Second plane conduct component is a rectangular configuration, comprises a first and a second portion, is used for receiving the signal of first frequency and second frequency respectively.The plane grounding assembly is vertical with second plane conduct component, is used for connecting earth terminal.Flat base is also vertical with second plane conduct component, is used for reversed F-typed dual-band antenna is fixed on the electronic installation.Coupling assembling is connected first plane conduct component and plane grounding assembly with flat base.
Wherein, first plane conduct component and second plane conduct component are connected in a contact, and this contact is positioned at the position of corresponding first and second portion boundary.First comprises one first limit, and its length is about 1/4th of the corresponding wavelength of first frequency, and second portion comprises one second limit, and its length is about 1/4th of the corresponding wavelength of second frequency.
Dual-band antenna of the present utility model also can separate with a conduit between first and second portion, can obtain receiving efficiency preferably.
Description of drawings
Fig. 1 is an existing dual-band antenna;
Fig. 2 is installed in the schematic diagram of a notebook for dual-band antenna of the present invention;
Fig. 3 A is the stereogram of first embodiment of the invention;
Fig. 3 B is the end view of first embodiment of the invention;
Fig. 4 is for measuring the analytic curve figure of first embodiment of the invention voltage standing wave ratio;
Fig. 5 A is the gain field pattern figure of first embodiment of the invention when receiving the 2.45GHz frequency;
Fig. 5 B is the gain field pattern figure of first embodiment of the invention when receiving the 5.25GHz frequency;
Fig. 6 is the stereogram of second embodiment of the invention;
Fig. 7 is for measuring the analytic curve figure of second embodiment of the invention voltage standing wave ratio;
Fig. 8 A is the gain field pattern figure of second embodiment of the invention when receiving the 2.45GHz frequency;
Fig. 8 B is the gain field pattern figure of second embodiment of the invention when receiving the 5.25GHz frequency.
Has execution mode
The utility model discloses a kind of reversed F-typed dual-band antenna, is installed on the mobile electronic device with wireless communication function, as notebook, PDA(Personal Digital Assistant) etc.This kind dual-band antenna can receive the signal of two frequency bands, for simplicity, unless dated especially, in the specification all with its centre frequency: first frequency and second frequency are represented this two frequency bands.
Reversed F-typed dual-band antenna of the present utility model comprises one first plane conduct component and one second plane conduct component.Second plane conduct component is vertical with first plane conduct component, and comprises a first and a second portion, and first is used for receiving the signal of first frequency, and second portion then is used for receiving the signal of second frequency.First plane conduct component and second plane conduct component are connected to each other in a contact, and its contact is positioned at the position of corresponding first and second portion boundary.The first of second plane conduct component comprises one first limit, and for reaching the optimum efficiency that receives first frequency, the length theoretical value on first limit need be about 1/4th of the corresponding wavelength of first frequency.The second portion of second plane conduct component comprises one second limit, and similarly, for reaching the optimum efficiency that receives second frequency, the length theoretical value on second limit need be about 1/4th of the corresponding wavelength of second frequency.
As shown in Figure 2, dual-band antenna of the present utility model is installed in the burst (hinge site) 301 of notebook 30.Though dual-band antenna is received signal intactly, generally speaking a notebook is all installed antenna two bursts 301, and another can also received signal when guaranteeing one of them fault.Fig. 3 A is the stereogram of dual-band antenna 20.As shown in Figure 3A, dual-band antenna 20 comprises one first plane conduct component 201 and one second plane conduct component 203.Second plane conduct component 203 is vertical with first plane conduct component 201, and comprises a first 205 and a second portion 207, and first 205 is used for receiving the signal of first frequency, 207 signals that are used for receiving second frequency of second portion.
First plane conduct component 201 and second plane conduct component 203 are connected in a contact 213, and its contact 213 is positioned at the position of corresponding first 205 and second portion 207 boundaries.Second plane conduct component 203 is a rectangular configuration, and it first that comprises 205 also is a rectangular configuration with second portion 207.In addition, the width W of second plane conduct component 203 is also relevant with receive frequency, for this dual-band antenna 20 is installed in the limited notebook in space 30, the adjustment that can cooperatively interact of the width W of first limit 209, second limit 211 and second plane conduct component 203, to reach the optimum efficiency that receives first frequency and second frequency, can be contained in the small space of notebook 30 again simultaneously.
First plane conduct component 201 is a L type structure, and comprises a signal feed-in point 215, is positioned at the bending place of L type structure, connects the axle center (not drawing) of coaxial line, is sent to notebook 30 in order to the signal that will receive.
Dual-band antenna 20 also comprises a flat base 217, a plane grounding assembly 219 and a coupling assembling 221.Flat base 217 is vertical with second plane conduct component 203, is used for dual-band antenna 20 is fixed on the burst 301 of notebook 30.Plane grounding assembly 219 is also vertical with second plane conduct component 203, is used for connecting the earth terminal (not drawing) of coaxial line.221 of coupling assemblings are in order to be connected first plane conduct component 201 and plane grounding assembly 219 with flat base 217.
Fig. 3 B is that dual-band antenna by Fig. 3 A Fig. 3 B that arranges in pairs or groups simultaneously, can be found out the corresponding relation of each inter-module along the end view of the direction of arrow among Fig. 3 A.
Because this antenna is designed according to the specification of WIRELESS LAN IEEE 802.11a and 802.11b, and the centre frequency of 802.11a is 5.25GHz, 802.11b centre frequency be 2.45GHz, so among the embodiment, the qualification first frequency is 5.25GHz, second frequency is 2.45GHz, and its corresponding wavelength is respectively 5.7cm and 12.2cm.As mentioned above, in order to reach the optimum efficiency of reception, the length on first limit 209 in the first 205 should be 1/4th of 5.7cm, promptly be about 1.4cm, and the length on second limit 211 on the second portion 207 should be 1/4th of 12.2cm, promptly is about 3cm.Yet, be to cooperate the small space of burst 301, so be 0.4cm with the length reduction on first limit 209, the length reduction on second limit 211 is 1.7cm, but width W is adjusted into 0.9cm relatively.
Fig. 4 is that first embodiment carries out voltage standing wave ratio (voltage standing wave ratio, VSWR) results of test chart.Generally speaking, promptly to be considered as acceptance rate below 2dB good for voltage standing wave ratio.As shown in Figure 4, indicate 1 among the figure and be the residing frequency band of 802.11b (2.4GHz～2.5GHz) with the frequency band of 2 of signs, indicate 3 and be the residing frequency band of 802.11a (5.15GHz～5.725GHz) with the frequency band of 6 of signs, the voltage standing wave ratio of this two frequency band is all less than 2dB, so very good with the frequency effect of this antenna reception WIRELESS LAN IEEE 802.11a and 802.11b specification.
Fig. 5 A and Fig. 5 B are respectively first embodiment and are receiving gain field pattern (gain pattern) figure of second frequency (2.45GHz) with first frequency (5.25GHz).The gain of non-directional antenna gain (isotropic antennagain) 501 for reaching, the gain that actual reception arrives should be better near non-directional antenna gain 501, the characteristic electron that excessive or too small gain all may have influence on receiving quality and disturb other assembly.Shown in Fig. 5 A and Fig. 5 B, no matter the gain (vertical-polarized gain) 503 of first embodiment on vertical polarization directions, or the non-directional antenna that the gain on the horizontal polarization directions (horizontal-polarizedgain) 505 all very is near the mark gains 501.
Fig. 6 is second embodiment of the present utility model, is used for receiving the frequency of WIRELESS LAN IEEE802.11a and 802.11b specification equally.Different with first embodiment of Fig. 3 A is that second plane conduct component 203 of second embodiment also comprises a conduit 223, is positioned at 207 of first 205 and second portions, in order to separate first 205 and second portion 207.
Fig. 7 is the VSWR figure of second embodiment.Compare with Fig. 4, can find that the dual-band antenna with conduit 223 produces lower voltage standing wave ratio, especially is positioned at the frequency (5.15GHz) of sign 3.Fig. 8 A and Fig. 8 B are respectively second embodiment and are receiving the gain field pattern figure of second frequency (2.45GHz) with first frequency (5.25GHz).Compare with Fig. 5 A and Fig. 5 B, can find that the receiving gain of second embodiment on various angles all is better than first embodiment.
From the above, the disclosed dual-band antenna of the utility model can be adjusted its size according to the needs of mobile electronic device, and has good receiving quality simultaneously.Though the frequency with reception 2.45GHz and 5.25GHz in the specification is an example, yet this dual-band antenna just can receive other frequency as long as suitably change the size of second plane conduct component.
Claims (17)
1. a reversed F-typed dual-band antenna in order to receive the signal of a first frequency and a second frequency, is characterized in that, comprising: one first plane conduct component; And one second plane conduct component, vertical with this first plane conduct component and be provided with a first and a second portion, this first has one first limit, and this second portion has one second limit; Wherein this first is used for receiving the signal of this first frequency, this second portion is used for receiving the signal of this second frequency, this first plane conduct component and this second plane conduct component are connected in a contact, this contact is positioned at should first and the position that has a common boundary of this second portion, the length on this first limit is about 1/4th of the corresponding wavelength of this first frequency, and the length on this second limit is about 1/4th of the corresponding wavelength of this second frequency.
2. dual-band antenna as claimed in claim 1 is characterized in that, this first and this second portion are a rectangular configuration.
3. dual-band antenna as claimed in claim 2 is characterized in that, this second plane conduct component also comprises a conduit, is positioned between this first and this second portion.
4. as claim 2 or 3 described dual-band antennas, it is characterized in that this first plane conduct component is a L type structure, and comprise that a signal feed-in point, this signal feed-in point are positioned at a bending place of this L type structure.
5. dual-band antenna as claimed in claim 4 is characterized in that, also comprises: a flat base, and vertical with this second plane conduct component, for this dual-band antenna being fixed on the device; One plane grounding assembly is vertical with this second plane conduct component; And a coupling assembling, in order to this first plane conduct component and this plane grounding assembly are connected with this flat base.
6. dual-band antenna as claimed in claim 5 is characterized in that, this device is a notebook.
7. dual-band antenna as claimed in claim 5 is characterized in that, this device is a PDA(Personal Digital Assistant).
8. a reversed F-typed dual-band antenna in order to receive the signal of a first frequency and a second frequency, is characterized in that, comprising: one first plane conduct component; One second plane conduct component, vertical with this first plane conduct component and be provided with a first and a second portion, this first has one first limit, this second portion has one second limit, this first is used for receiving the signal of this first frequency, and this second portion is used for receiving the signal of this second frequency; One flat base, vertical with this second plane conduct component, for this dual-band antenna being fixed on the device; One plane grounding assembly is vertical with this second plane conduct component; And a coupling assembling, in order to this first plane conduct component and this plane grounding assembly are connected with this flat base; Wherein, this first plane conduct component and this second plane conduct component are connected in a contact, this contact is positioned at should first and the position that has a common boundary of this second portion, the length on this first limit is about 1/4th of the corresponding wavelength of this first frequency, and the length on this second limit is about 1/4th of the corresponding wavelength of this second frequency.
9. dual-band antenna as claimed in claim 8 is characterized in that, this first and this second portion are a rectangular configuration.
10. dual-band antenna as claimed in claim 9 is characterized in that, this second plane conduct component also comprises a conduit, is positioned between this first and this second portion.
11., it is characterized in that this first plane conduct component is a L type structure as claim 9 or 10 described dual-band antennas, and comprise that a signal feed-in point, this signal feed-in point are positioned at a bending place of this L type structure.
12. dual-band antenna as claimed in claim 8 is characterized in that, this device is a mobile computer.
13. dual-band antenna as claimed in claim 8 is characterized in that, this device is a personal digital assistant.
14. the electronic installation with wireless communication function is characterized in that, comprising: a reversed F-typed dual-band antenna in order to receive the signal of a first frequency and a second frequency, comprising: one first plane conduct component; One second plane conduct component, vertical with this first plane conduct component, this second plane conduct component is provided with a first and a second portion, and this first has one first limit, and this second portion has one second limit; And a plane grounding assembly, vertical with this second plane conduct component; One flat base, vertical with this second plane conduct component, for being fixed on this electronic installation by reversed F-typed dual-band antenna; And a coupling assembling, in order to this first plane conduct component and this plane grounding assembly are connected with this flat base; Wherein this first plane conduct component and this second plane conduct component are connected in a contact, this contact is positioned at should first and the position that has a common boundary of this second portion, the length on this first limit is about 1/4th of the corresponding wavelength of this first frequency, and the length on this second limit is about 1/4th of the corresponding wavelength of this second frequency.
15. electronic installation as claimed in claim 14 is characterized in that, this first and this second portion are a rectangular configuration.
16. electronic installation as claimed in claim 15 is characterized in that, this second plane conduct component also comprises a conduit, is positioned between this first and this second portion.
17., it is characterized in that this first plane conduct component is a L type structure as claim 15 or 16 described electronic installations, and comprise that a signal feed-in point, this signal feed-in point are positioned at a bending place of this L type structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032384483U CN2612086Y (en) | 2003-04-14 | 2003-04-14 | Converse f-shape dual frequency antenna electronic device with wireless communication function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032384483U CN2612086Y (en) | 2003-04-14 | 2003-04-14 | Converse f-shape dual frequency antenna electronic device with wireless communication function |
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| Publication Number | Publication Date |
|---|---|
| CN2612086Y true CN2612086Y (en) | 2004-04-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032384483U Expired - Fee Related CN2612086Y (en) | 2003-04-14 | 2003-04-14 | Converse f-shape dual frequency antenna electronic device with wireless communication function |
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| CN (1) | CN2612086Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916255A (en) * | 2011-08-04 | 2013-02-06 | 智易科技股份有限公司 | Multi-frequency inverted F-shaped antenna |
| CN103219580A (en) * | 2012-01-18 | 2013-07-24 | 上海腾怡半导体有限公司 | PIFA antenna system |
-
2003
- 2003-04-14 CN CNU032384483U patent/CN2612086Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102916255A (en) * | 2011-08-04 | 2013-02-06 | 智易科技股份有限公司 | Multi-frequency inverted F-shaped antenna |
| CN103219580A (en) * | 2012-01-18 | 2013-07-24 | 上海腾怡半导体有限公司 | PIFA antenna system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040414 |