CN101409380A - Ultra-wideband antenna - Google Patents
Ultra-wideband antenna Download PDFInfo
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- CN101409380A CN101409380A CNA2007101635929A CN200710163592A CN101409380A CN 101409380 A CN101409380 A CN 101409380A CN A2007101635929 A CNA2007101635929 A CN A2007101635929A CN 200710163592 A CN200710163592 A CN 200710163592A CN 101409380 A CN101409380 A CN 101409380A
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- uwb
- ground connection
- irradiation device
- ultra wideband
- insulated substrate
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Abstract
The invention provides an ultrawideband antenna which comprises a radiation apparatus, an isolating basic board, a grounding apparatus and a signal line; wherein, the isolating basic board is fixed on the grounding apparatus; the radiation apparatus is arranged on the isolating basic board and used for receiving and transmitting a wireless signal; the signal line is connected with the radiation apparatus and is contacted with the grounding apparatus and is used for feeding the signal into the radiation apparatus and receiving the wireless signal received by the radiation apparatus. The grounding apparatus is utilized to replace the known large-area conducive flat of the ultrawideband antenna for reducing the size of the ultrawideband antenna and being capable of arranging the ultrawideband antenna into an electronic device simultaneously without occupying the space and with miniaturization to realize a miniaturization ultrawideband electronic device.
Description
Technical field
The present invention relates to a kind of UWB (Ultra Wideband) Antenna, particularly a kind of undersized UWB (Ultra Wideband) Antenna.
Background technology
Super wideband (Ultra-wide-band) is the emerging technology of wireless telecommunications, and its main application is about ten meters or the above short distance high-speed data communications of a hectometer, even the remote low speed communication about a kilometer.The two big main forces of wireless telecommunications at present are bluetooth (Bluetooth) and IEEE802.11/a/b/g (54Mbps/11Mbps/22Mbps), but in fact its transmission speed can decrease because of barrier, and super broadband system is to use pulse rather than come the transmission data with carrier wave, therefore can penetrate barrier.Because adopt pulse to transmit signal, so its frequency range is very big, antijamming capability is strong, and can reduce transmit signal power, reaches the characteristic of low-power, low power consumption.
Circular cone one pole (conical monopole) antenna is a kind of UWB (Ultra Wideband) Antenna that often is used in the wideband wireless telecommunications.With reference to Figure 1A and Figure 1B, shown in the figure common circular cone monopole antenna structure and its change type structure.Circular cone monopole antenna structure in Figure 1A, it includes conical irradiation device 1, conducting plate 2 and holding wire 3.Conical irradiation device 1 is a conical structure, in order to receive and to send the resonance frequency (wireless signal of 3GHz～8GHz).Holding wire 3 vertically penetrates conducting plate 2, and is connected in conical irradiation device 1, feeds out to conical irradiation device 1 in order to the delivered current signal, with the current signal that receives by 1 feed-in of conical irradiation device.Conducting plate 2 is connected with holding wire 3, as the ground connection device of antenna, is connected conduction with holding wire 3.This circular cone unipole antenna is to utilize conical irradiation device 1 that the resonance of institute transmitting/receiving wireless signal is current signal, by holding wire 3 current signal is passed, or the current signal of received signal line 3 feed-ins, and this current signal resonance is spread out of for wireless signal.Circular cone monopole antenna structure in Figure 1B, be to change the conical irradiation device 1 among Figure 1A into a triangle metal body 4, purpose is that the irradiation device volume is greatly reduced, but conducting plate 2 does not change, and therefore miniaturization there is no much help to circular cone unipole antenna volume.Existing electronic installation is towards portability, miniaturization development, but known UWB (Ultra Wideband) Antenna is not suitable for the electronic installation of the miniaturization of present main flow because need large-area conducting plate conductive earthing.
Summary of the invention
In view of above problem, the invention provides a kind of UWB (Ultra Wideband) Antenna, see through and change conducting plate into a ground connection device, can combine with existing electronic installation, realize the super wideband electronic installation of portability, miniaturization.Electronic installation can be notebook computer, PDA, can certainly be other electronic installations.
The present invention discloses a kind of UWB (Ultra Wideband) Antenna, and it is applied in the electronic installation, includes irradiation device, insulated substrate, ground connection device and holding wire.Wherein insulated substrate is fixed in the ground connection device.Irradiation device is arranged on the insulated substrate, in order to receive and the emission wireless signal.The shape of irradiation device comprises but is not limited only to is triangle, semicircle or half elliptic.Holding wire, be connected with this irradiation device and with this ground connection device contacts, to this irradiation device, and receive this wireless signal that this irradiation device receives in order to feed-in one signal.Holding wire includes signal transmssion line, the insulating barrier that coats signal transmssion line and the ground plane of coated insulation layer.Signal transmssion line is connected in irradiation device, feeds out to irradiation device in order to the delivered current signal, with the current signal of receiver radiation device institute feed-in.Insulating barrier is in order to blank signal transmission line and ground plane.Ground plane is in order to conduct electricity with the antenna ground device contacts.
By this UWB (Ultra Wideband) Antenna, see through holding wire and transmit current signal, and current signal is fed into irradiation device, be wireless signal by irradiation device with the current signal resonance that is received.Because the design of UWB (Ultra Wideband) Antenna needs large-area conducting plate.Therefore utilize the ground connection device to replace large-area conducting plate,, so do not taking up space, in the miniaturization, just UWB (Ultra Wideband) Antenna can inserted electronic installation, realization excess of export wideband electronic installation the volume-diminished of UWB (Ultra Wideband) Antenna.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Description of drawings
Figure 1A is the schematic diagram of common circular cone monopole antenna structure;
Figure 1B is the schematic diagram of common circular cone unipole antenna change type structure;
Fig. 2 is the structural representation of the first embodiment of the present invention;
Fig. 3 is fixed in the schematic diagram of ground connection device for insulated substrate of the present invention;
Fig. 4 A is another schematic diagram that insulated substrate of the present invention is fixed in the ground connection device;
Fig. 4 B is another schematic diagram that insulated substrate of the present invention is fixed in the ground connection device;
Fig. 5 is the structural representation of the second embodiment of the present invention;
The impedance matching resolution chart that Fig. 6 measures when frequency is 3GHz to 8GHz for UWB (Ultra Wideband) Antenna of the present invention;
Average gain that Fig. 7 measures when frequency is 3GHz to 8GHz for UWB (Ultra Wideband) Antenna of the present invention and peak gain table.
Wherein, Reference numeral
Conducting plate 2
Triangle metal body 4
One end 20
L type metal structure 23
Hole 24
Insulated substrate 50
Irradiation device 51
Ground connection device 52
Holding wire 54
First plate 57
Second plate 58
Side 59
One end 60
Signal transmssion line 65
Insulating barrier 66
Ground plane 67
UWB (Ultra Wideband) Antenna 100
UWB (Ultra Wideband) Antenna 200
Embodiment
Please refer to Fig. 2, Fig. 2 is the schematic diagram of first embodiment of the invention.Wherein UWB (Ultra Wideband) Antenna 100 includes insulated substrate 10, irradiation device 11, ground connection device 12 and holding wire 14.
Insulated substrate 10 is tabular insulation materials, is connected in irradiation device 11 and ground connection device 12, in order to supporting this irradiation device 11 on this ground connection device 12, and makes this irradiation device 11 and these ground connection device 12 insulation gaps.The material of insulated substrate 10 can be that plastic cement, glass mat (FR4) wait other insulation materials.Please refer to Fig. 3, Fig. 3 is fixed in the schematic diagram of ground connection device 12 for insulated substrate 10.Insulated substrate 10 includes the another side 21 relative with above-mentioned side 16.The side 16 and the another side 21 of insulated substrate 10 are formed with metal level 22 in the corner with ground connection device 12 junctions, and with the mode of scolding tin with welding the side 19 of metal level 22 with ground connection device 12 are welded together.Please refer to Fig. 4 A and Fig. 4 B, two figure are another schematic diagram that insulated substrate 10 is fixed in ground connection device 12.With reference to Fig. 4 A, more than one at least L type metal structure 23 is fixed on the side 19 of ground connection device 12.At least more than one these L type metal structure 23 1 end vertical fixing are on side 19, and the other end penetrated then that above-mentioned relatively at least more than one the position of L type metal structure 23 is offered on the insulated substrate 10 penetrates opening 24.With reference to Fig. 4 B, will penetrate again at last that at least more than one L type metal structure 23 1 ends that penetrate opening 24 bend on this insulated substrate 10 downwards, in order to insulated substrate 10 is fixed on the side 19 of ground connection device 12.
When transmitting, current signal is via holding wire 14 feed-in irradiation devices 11.By irradiation device 11 the current signal resoance radiation is gone out wireless signal then.Same, sense the wireless signal of resonance frequency and when producing current signal when irradiation device 11, current signal can be fed out to holding wire 14 and pass.
Please refer to Fig. 5, Fig. 5 is the schematic diagram of second embodiment of the invention, and wherein UWB (Ultra Wideband) Antenna 200 includes insulated substrate 50, irradiation device 51, ground connection device 52 and holding wire 54.
Irradiation device 51 is metal levels that are formed on the insulated substrate, in order to replace the bigger conical irradiation device of volume.The shape of irradiation device 51 can be but be not limited only to be triangle, semicircle or half elliptic.The material of irradiation device 51 can be gold, copper, aluminium, silver or other conducting metals.
Ground connection device 52 is tabular ground connection devices, and the material of ground connection device 52 is that gold, copper, aluminium and group of silver-colored institute make up one of them.Wherein ground connection device 52 includes first plate 57 and second plate 58.First plate 57 and 58 mutual vertical connections of second plate.On one side 59 of first plate 57, link insulated substrate 50 in order to accept.
Holding wire 54 internal structures include signal transmssion line 65, insulating barrier 66, ground plane 67 from inside to outside just like concentric circles.Signal transmssion line 65 is connected an end 60 of irradiation device 51, feeds out to irradiation device 51 in order to the delivered current signal, with the current signal of 51 feed-ins of receiver radiation device.Ground plane 67 is in order to be connected conduction with ground connection device 52.Insulating barrier 66 is in order to blank signal transmission line 65 and ground plane 67.Holding wire 54 can be to couch on first plate 57, can certainly be to penetrate first plate 57.
Insulated substrate 50 is tabular insulation materials, is connected in irradiation device 51 and ground connection device 52, in order to supporting this irradiation device 51 on this ground connection device 52, and makes this irradiation device 51 and these ground connection device 52 insulation gaps.The material of insulated substrate 50 can be that plastic cement, glass mat (FR4) wait other insulation materials.Side 59 methods of attachment of insulated substrate 50 and ground connection device 52 as first embodiment, are not given unnecessary details at this.
When transmitting, current signal is via holding wire 54 feed-in irradiation devices 51.By irradiation device 51 the current signal resoance radiation is gone out wireless signal then.Same, sense the wireless signal of resonance frequency and when producing current signal when irradiation device 51, current signal can be fed out to holding wire 54 and pass.
Please refer to Fig. 6, the impedance matching resolution chart that Fig. 6 measures when frequency is 3GHz to 8GHz for UWB (Ultra Wideband) Antenna of the present invention.Come as can be seen from Figure, the standing wave ratio that UWB (Ultra Wideband) Antenna of the present invention is measured when frequency is 3GHz to 8GHz is mostly below 2.0.
Please refer to Fig. 7, average gain that Fig. 7 measures when frequency is 3GHz to 8GHz for UWB (Ultra Wideband) Antenna of the present invention and peak gain table.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the present invention.
Claims (10)
1. a UWB (Ultra Wideband) Antenna is applied to it is characterized in that in the electronic installation, includes:
One ground connection device;
One insulated substrate is fixed in this ground connection device;
One irradiation device is arranged on this insulated substrate, in order to receive and emission one wireless signal; And
One holding wire, be connected with this irradiation device and with this ground connection device contacts, to this irradiation device, and receive this wireless signal that this irradiation device receives in order to feed-in one signal.
2. UWB (Ultra Wideband) Antenna according to claim 1, wherein this irradiation device is a metallic object.
3. UWB (Ultra Wideband) Antenna according to claim 1, wherein this irradiation device is the metal level that is formed on this insulated substrate.
4. UWB (Ultra Wideband) Antenna according to claim 1, wherein the material of this irradiation device is that gold, copper, aluminium and group of silver-colored institute make up one of them.
5. UWB (Ultra Wideband) Antenna according to claim 1, wherein this irradiation device is that triangle, semicircle and group of half elliptic institute make up one of them.
6. UWB (Ultra Wideband) Antenna according to claim 1, wherein the material of this ground connection device is that gold, copper, aluminium and group of silver-colored institute make up one of them.
7. UWB (Ultra Wideband) Antenna according to claim 1, wherein this insulated substrate is in plastic cement and the combination of group of glass mat institute one of them.
8. UWB (Ultra Wideband) Antenna according to claim 1, wherein this holding wire ground plane of including a signal transmssion line, coating an insulating barrier of this signal transmssion line and coat this insulating barrier.
9. UWB (Ultra Wideband) Antenna according to claim 1, wherein this insulated substrate is to be welded on the ground connection device.
10. UWB (Ultra Wideband) Antenna according to claim 1, wherein this ground connection device more comprises at least more than one L type metal structure, at least more than one this L type metal structure is fixed in this ground connection device, in order to penetrate on this insulated substrate relatively this at least more than one L type metal structure body position at least more than one penetrate opening, and this at least more than one the L type metal structure one end bending downwards that penetrates opening that will penetrate on this insulated substrate at least more than one is in order to be fixed in this insulated substrate this ground connection device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101635929A CN101409380A (en) | 2007-10-12 | 2007-10-12 | Ultra-wideband antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101635929A CN101409380A (en) | 2007-10-12 | 2007-10-12 | Ultra-wideband antenna |
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| Publication Number | Publication Date |
|---|---|
| CN101409380A true CN101409380A (en) | 2009-04-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101635929A Pending CN101409380A (en) | 2007-10-12 | 2007-10-12 | Ultra-wideband antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101409380A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515688A (en) * | 2012-06-27 | 2014-01-15 | 宏碁股份有限公司 | Communication apparatus |
-
2007
- 2007-10-12 CN CNA2007101635929A patent/CN101409380A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103515688A (en) * | 2012-06-27 | 2014-01-15 | 宏碁股份有限公司 | Communication apparatus |
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Application publication date: 20090415 |