CN201112562Y - Planar reverse F-shaped antenna structure - Google Patents
Planar reverse F-shaped antenna structure Download PDFInfo
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- CN201112562Y CN201112562Y CNU2007201826461U CN200720182646U CN201112562Y CN 201112562 Y CN201112562 Y CN 201112562Y CN U2007201826461 U CNU2007201826461 U CN U2007201826461U CN 200720182646 U CN200720182646 U CN 200720182646U CN 201112562 Y CN201112562 Y CN 201112562Y
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- planar inverted
- shape antenna
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Abstract
A planar reverse F-shaped antenna structure comprises a radio frequency plate, a grounding plate, a wire fixing plate, and a feeding point, wherein the grounding plate is positioned below the radio frequency plate and electronically connected with the radio frequency plate, the wire fixing plate is positioned below the radio frequency plate, and the face of the wire fixing plate toward the back of the radio frequency plate is used for fixing a coaxial wire, and the feeding point is electronically connected with the radio frequency plate and the coaxial wire. In the planar reverse F-shaped antenna structure provided in the utility model, the face of the wire fixing plate toward the back of the radio frequency plate is used for fixing the coaxial wire, so as to effectively reduce the signal interference between the coaxial wire and the radio frequency plate, thereby improving the product quality.
Description
[technical field]
The utility model relates to a kind of structure of antenna, and particularly relevant for a kind of planar inverted F-shape antenna structure.
[background technology]
Planar inverted F-shape antenna (Planar Inverted F Antenna; PIFA) owing to have advantages such as the side height is low, in light weight, the frequency range band is big, therefore be suitable for equipment such as mobile phone, bluetooth equipment and radio frequency.
Figure 1 shows that the structural map of known employed a kind of PIFA antenna at present.PIFA antenna 100 comprised rf board 102 in order to the transmitting/receiving wireless signal, with the ground plate 104 of rf board 102 ground connection, and the short-circuit conductor 106 that connects rf board 102 and ground plate 104.Has a load point 110 (Feed point) on the short-circuit conductor 106.Coaxial cable 108 has comprised heart yearn 108a and metal knitted net 108b.Heart yearn 108a is welded in load point 110, in order to transmission signal.Metal knitted net 108b then is welded on the ground plate 104, in order to fixing coaxial cable yarn 108 on ground plate 104.
Because coaxial cable 108 is to be positioned at the one side of ground plate 104 towards rf board 102, makes PIFA antenna 100 in use, the situation that signal interferes with each other occurs between rf board 102 and the coaxial cable 108, and then influences the quality of PIFA antenna 100.Therefore, a kind of PIFA antenna of the signal interference between coaxial cable and the rf board that reduces is for required at present.
[utility model content]
The purpose of this utility model is to be to provide a kind of planar inverted F-shape antenna structure that reduces the signal interference between antenna and the coaxial cable.
In order to achieve the above object, the utility model provides a kind of planar inverted F-shape antenna structure, has comprised rf board, ground plate, cable fixed head and load point.Ground plate is positioned at the below of rf board, and electrically connects rf board.The cable fixed head is positioned at the below of rf board, its back to the one side of rf board in order to fix a coaxial cable.Load point electrically connects rf board and coaxial cable.
The utility model also provides a kind of planar inverted F-shape antenna structure, and this planar inverted F-shape antenna comprises R-T unit, earthing device, feedthrough and fixture.R-T unit is in order to receive and the emission wireless signal.Earthing device is in order to carry out ground connection with R-T unit.Feedthrough is in order to be connected in R-T unit one transmitting device.Fixture disturbs the signal that reduces between transmitting device and the R-T unit in order to the constant transmissions device.
Planar inverted F-shape antenna structure of the present utility model, its beneficial effect is: its cable fixed head is in the mode of the surperficial fixing coaxial cable yarn of rf board dorsad, and the signal that can reduce effectively between coaxial cable and the rf board disturbs, and then improves the quality of product.
[description of drawings]
For allowing above-mentioned and other purposes of the present utility model, feature, advantage and embodiment can become apparent appended graphic being described in detail as follows:
Fig. 1 is the structural map that has illustrated present known employed a kind of PIFA antenna.
Fig. 2 A is the structure that has illustrated the described planar inverted F-shape antenna of this novel embodiment.
Fig. 2 B is the structure that has illustrated the described planar inverted F-shape antenna of this novel another embodiment.
[main element symbol description]
100,200,300: planar inverted F-shape antenna 102,202: rf board
104,204: ground plate 106,206: short-circuit conductor
108,208: coaxial cable 108a, 208a: heart yearn
108b, 208b: metal knitted net 110,210: load point
212: cable fixed head 214: the feed-in conductor
218: retaining element 220: signal process device
[embodiment]
Fig. 2 A has illustrated described planar inverted F-shape antenna (the PlanarInverted F Antenna of this novel embodiment; PIFA) structure.In Fig. 2 A, this planar inverted F-shape antenna 200 can by transmitting device for example coaxial cable 208 be connected on the signal process device 220, with external emission or receive signal.
Above-mentioned planar inverted F-shape antenna 200 has comprised R-T unit, earthing device, feedthrough and fixture.In Fig. 2 A, R-T unit can be a rf board 202, in order to receive and the emission wireless signal.Earthing device can be a ground plate 204, is positioned at the below of rf board 202, and electrically connects with rf board 202, in order to R-T unit is carried out ground connection.Feedthrough is in order to be connected in R-T unit on the transmitting device, and this feedthrough for example can be load point 210, and transmitting device can be coaxial cable 208, and load point 210 electrically connects coaxial cable 208 with rf board 202.Fixture must be cable fixed head 212, and in order to the constant transmissions device, and the signal that reduces between this transmitting device and the R-T unit disturbs.This cable fixed head 212 is positioned at the below of rf board 202, and it is back to a surface soldered coaxial cable 208 of rf board 202.
When rf board 202 receives wireless signals, this wireless signal will be transferred to signal process device 220 among Fig. 2 A for example by coaxial cable 208.When signal process device 220 emissions one signal, this signal will be transferred on the rf board 202 by coaxial cable 208, in the environment around being transmitted into again.
Above-mentioned planar inverted F-shape antenna can more comprise a jockey, in order to connect R-T unit and earthing device.Feedthrough can be arranged on this jockey.In Fig. 2 A, jockey for example can be short-circuit conductor 206, and this short-circuit conductor 206 connects rf board 202 and ground plate 204.In addition, load point 210 can be arranged on this short-circuit conductor 206.
In Fig. 2 A, above-mentioned cable fixed head 212 can be a flat board that connects ground plate 204, and this flat board is positioned at a side of ground plate 204, can be in order to fixing coaxial cable yarn 208.Coaxial cable 208 has comprised heart yearn 208a and metal knitted net 208b.Metal knitted net 208b is welded in a dull and stereotyped surface of rf board 202 dorsad, and heart yearn 208a connects the load point 210 that is positioned on the short-circuit conductor 206.Because coaxial cable 208 is positioned at cable fixed head 212 surface of rf board 202 dorsad, by the shielding of cable fixed head 212, the signal that can reduce between coaxial cable 208 and the rf board 202 disturbs.
In addition, because coaxial cable 208 is welded in the below of cable fixed head 212, the range of choice of the load point 210 that its heart yearn 208a can correspond to will be dwindled significantly, make that the position of load point 210 of planar inverted F-shape antenna 200 is more consistent.Because the position of load point 210 is very big for the influence of planar inverted F-shape antenna 200 signal receiving/transmissions, therefore, the load point 210 of homogeneous position can make the quality of planar inverted F-shape antenna 200 comparatively stable.
In Fig. 2 A, above-mentioned planar inverted F-shape antenna 200 more can comprise a pair of retaining element 218, is positioned at the two ends of ground plate 204, in order to planar inverted F-shape antenna 200 is installed on the circuit board.By screw or other affixed elements planar inverted F-shape antenna 200 is locked on the circuit board, can reduces the vibration of planar inverted F-shape antenna 200, improve the stability of signal receiving/transmission.
Fig. 2 B illustrates the structure of the described planar inverted F-shape antenna of this novel another embodiment.In Fig. 2 B, the structure of planar inverted F-shape antenna 300 and aforementioned planar inverted F-shape antenna 200 are similar.Its maximum difference is that planar inverted F-shape antenna 300 has comprised a feed-in conductor 214, the conductor that this feed-in conductor 214 extends out for rf board 202.Load point 210 can select to be arranged at the end of this feed-in conductor 214, thus, in the welding process of heart yearn 208a, load point 210 selectable scopes diminish, make the load point homogeneous comparatively of each planar inverted F-shape antenna, thereby obtain the comparatively stable planar inverted F-shape antenna of quality.
Though this is novel with the embodiment exposure as above, so it is not novel in order to limit this.
Claims (9)
1. planar inverted F-shape antenna structure is characterized in that: comprise:
One rf board;
One ground plate is positioned at the below of this rf board, and electrically connects with this rf board;
One cable fixed head is positioned at the below of this rf board, this cable fixed head back to the one side of this rf board in order to fix a coaxial cable; And
One load point, this load point electrically connect this rf board and this coaxial cable.
2. planar inverted F-shape antenna structure as claimed in claim 1 is characterized in that: also comprise a short-circuit conductor, this short-circuit conductor connects this rf board and this ground plate.
3. planar inverted F-shape antenna structure as claimed in claim 2 is characterized in that: this load point is positioned on this short-circuit conductor.
4. planar inverted F-shape antenna structure as claimed in claim 1 is characterized in that: this cable fixed head is positioned at a side of this ground plate.
5. planar inverted F-shape antenna structure as claimed in claim 1 is characterized in that: also comprise a feed-in conductor, connect this rf board, this load point is positioned on this feed-in conductor.
6. planar inverted F-shape antenna structure as claimed in claim 1 is characterized in that: also comprise a retaining element, be positioned at the two ends of this planar inverted F-shape antenna, in order to fix this planar inverted F-shape antenna on a circuit board.
7. planar inverted F-shape antenna structure is characterized in that: comprise:
One in order to receive and to launch the R-T unit of a wireless signal;
One in order to carry out this R-T unit the earthing device of ground connection;
One in order to be connected in this R-T unit the feedthrough of one transmitting device; And
One in order to fixing this transmitting device, and reduce the fixture that the signal between this transmitting device and this R-T unit disturbs.
8. planar inverted F-shape antenna structure as claimed in claim 7 is characterized in that: also comprise one in order to connect the jockey of this earthing device and this R-T unit.
9. planar inverted F-shape antenna structure as claimed in claim 8 is characterized in that: this feedthrough is positioned on this jockey.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201826461U CN201112562Y (en) | 2007-10-22 | 2007-10-22 | Planar reverse F-shaped antenna structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201826461U CN201112562Y (en) | 2007-10-22 | 2007-10-22 | Planar reverse F-shaped antenna structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201112562Y true CN201112562Y (en) | 2008-09-10 |
Family
ID=39964312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201826461U Expired - Fee Related CN201112562Y (en) | 2007-10-22 | 2007-10-22 | Planar reverse F-shaped antenna structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201112562Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340058A (en) * | 2010-07-21 | 2012-02-01 | 神讯电脑(昆山)有限公司 | Antenna structure |
| CN102610897A (en) * | 2011-01-25 | 2012-07-25 | 中兴通讯股份有限公司 | Antenna applied to wireless local area network, antenna device and wireless terminal |
-
2007
- 2007-10-22 CN CNU2007201826461U patent/CN201112562Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102340058A (en) * | 2010-07-21 | 2012-02-01 | 神讯电脑(昆山)有限公司 | Antenna structure |
| CN102340058B (en) * | 2010-07-21 | 2015-11-25 | 神讯电脑(昆山)有限公司 | Antenna structure |
| CN102610897A (en) * | 2011-01-25 | 2012-07-25 | 中兴通讯股份有限公司 | Antenna applied to wireless local area network, antenna device and wireless terminal |
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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: 20080910 Termination date: 20121022 |