CN2488228Y - Plane slot antenna - Google Patents
Plane slot antenna Download PDFInfo
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- CN2488228Y CN2488228Y CN 01226511 CN01226511U CN2488228Y CN 2488228 Y CN2488228 Y CN 2488228Y CN 01226511 CN01226511 CN 01226511 CN 01226511 U CN01226511 U CN 01226511U CN 2488228 Y CN2488228 Y CN 2488228Y
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- pattern
- slot antenna
- shaped conductive
- type strip
- plane according
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Abstract
The utility model discloses a plane groove-shaped antenna which comprises a circuit board, an earthing lead design and two single earthing L strip shape conducting designs. One end of each L strip shape conducting design is connected with the earthing lead design; the utility model forms a still wave between the two L shape strip conducting designs and the earthing conducting design to send electromagnetic signal to outside through the direct or coupling with the air; the earthing lead design is provided with an opening which is provided with a signal entering design connected with the L strip shape conducting design. The utility model has the advantages of small volume, good matching capability, low direction capability and wide frequency range.
Description
The utility model relates to a kind of flat plane antenna, refers in particular to a kind of plane slot antenna with double L-shaped banded Copper Foil.
Along with information and computer market are constantly developed, electronic product is being grown up under compact, multi-functional and fireballing development trend fast.In the receiving system of communication signal, mainly be to utilize the signal of antenna reception from satellite or emission platform.After by the Wave collection device on the antenna signal being received, transmit this electromagnetic wave signal according to electromagnetic theory then.Practical work process is: at first collect electromagnetic wave signal by probe, it is converted to electric current, then by the conversion of frequency demultiplier processing of circuit, at last with signal feed-in receiver.Satellite communication now and satellite television utilize a kind of microwave band signal, mainly are C frequency range and Ku frequency range.Correspondingly to adopt the satellite-signal reception technique of C frequency range and Ku frequency range.
At present, based on a large amount of exploitations (as blue bud module) of wireless device and the demand of wireless telecommunications, many advanced persons' electronic equipment is all implanted wireless telecommunications module, for example equipment such as Wireless Keyboard, wireless mouse successively.Therefore, wireless transmission and receiving system seem and become more and more important.No matter be radio wave or ultrared transmission, all need wireless receiving or emitter to carry out the transmission or the reception of signal.
The receiving system of prior art can be divided into teledish, linear antenna and flat plane antenna.Teledish generally is used to receive satellite signals, mainly is used in the reception of the satellite-signal of C frequency range and Ku frequency range as mentioned above.The application of flat plane antenna also for extremely extensive, has a kind of slot antenna in the flat plane antenna, previous slot antenna is lived banded Copper Foil by ground connection Copper Foil frame fully.The shared volume of this antenna is big, frequency band is narrower, be difficult for coupling.In view of the foregoing, the utility model is designed a kind of novel plane slot antenna.
Main purpose of the present utility model is to provide a kind of novel plane slot antenna, and this antenna has that volume is less, matching is good, directivity is low and the characteristics of bandwidth.
For achieving the above object, the utility model adopts following technical proposals: it comprises: circuit board, and the earth lead pattern, this earth lead pattern arrangement is on this circuit board, also comprise two L type strip-shaped conductive patterns single-end earthed, it is configured in the above-mentioned earth lead pattern; One end of these two L type strip-shaped conductive patterns is connected with above-mentioned earth lead pattern respectively; By direct or Air Coupling, between these two L type strip-shaped conductive patterns and above-mentioned earth lead pattern, form standing wave and the electromagnetic wave signal is emitted to the external world; Above-mentioned earth lead pattern has a breach, disposes a signal feed-in pattern in this breach, and one in this signal feed-in pattern and above-mentioned two the L type strip-shaped conductive patterns is connected.
Described earth lead pattern is a ground connection Copper Foil ring patterns.
Described L type strip-shaped conductive pattern is the banded copper foil pattern of L type.
The electronic circuit of described circuit board and this plane slot antenna is structure as a whole.
Distance between described two L type strip-shaped conductive patterns is less than one micron.
The ratio on the minor face of described L type strip-shaped conductive pattern and long limit is between 0.1 and 1.
The ratio of the width of the spacing of described two L type strip-shaped conductive patterns and this L type strip-shaped conductive pattern is between 0.1 and 1.
One coupling Copper Foil is arranged between described two L type strip-shaped conductive patterns.
Described signal feed-in pattern is a square wave pattern.
Described signal feed-in pattern is a strip pattern.
After adopting technique scheme, plane of the present utility model slot antenna has utilized the mechanism that forms resonance between L type strip-shaped conductive pattern (using two copper foils) and ground connection Copper Foil ring patterns.By direct or air coupling and generation broadband properties, it is by the double-resonant circuit principle frequency range to be broadened between the two L type strip-shaped conductive patterns, therefore, and the frequency band broad of this antenna.In addition, in the slot antenna of plane of the present utility model, L type strip-shaped conductive pattern becomes the L type, and making the directivity of this antenna thus is 2.14dB, and it is low to be compared to general antenna directivity.Therefore can adjust the direction that receives or launch.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the schematic diagram of first embodiment of plane of the present utility model slot antenna;
Fig. 2 is the schematic diagram of second embodiment of plane of the present utility model slot antenna;
Fig. 3 is the schematic diagram of the double-resonant circuit of plane of the present utility model slot antenna;
Fig. 4 is the antenna pattern of plane of the present utility model slot antenna.
The utility model is designed a kind of plane slot antenna with double L-shaped banded Copper Foil, and this novel flute profile antenna volume is less, can make emission, receiver and circuit substrate of this antenna duplexer of antenna, thereby can reduce the cost of antenna significantly.In addition, it mates easily, and it is good to transmit and receive characteristic.
Consult Fig. 1 and Fig. 2, plane of the present utility model flute profile antenna package contains a circuit board 100, and it is used for as the pedestal of flat plane antenna.This circuit board 100 comprises the metal conductive line pattern of single face, for example can be a Copper Foil metal conductive line pattern.Utilize known technology to form and have radiation-curable electromagnetic groove, be beneficial to make flat plane antenna.Plane of the present utility model flute profile antenna package contains earth lead pattern 10, and for an embodiment, this earth lead pattern 10 is a ground connection Copper Foil ring patterns 10, and it disposes around circuit board 100.Described ground connection Copper Foil ring patterns 10 has a breach 12.Signal feed-in pattern 20 is configured in this breach 12, and Fig. 3 disposes different signal feed-in patterns 20 respectively with Fig. 4.Signal feed-in pattern 20 among Fig. 3 comprises a square wave shape pattern, and Fig. 4 then is a strip pattern.One end of a pair of L type strip-shaped conductive pattern 14,16 (as the banded copper foil pattern of L type) single-end earthed connects above-mentioned ground connection Copper Foil ring patterns 10 respectively.Above-mentioned ground connection Copper Foil ring patterns 10 frames are lived the banded copper foil pattern 14,16 of this L type, by direct or Air Coupling, form standing wave between this a pair of L type strip-shaped conductive pattern 14,16 and the ground connection Copper Foil ring patterns 10, thereby the electromagnetic wave signal is emitted to the external world, suitable some place's feed-in that the signal of emission can be on above-mentioned banded copper foil pattern 14,16.This device can be designed to a kind of and the structure shared same circuit board of electronic circuit.
Do not have conductive material between L type strip-shaped conductive pattern 14,16 and the ground connection Copper Foil ring patterns 10, so can form the electromagnetic field standing wave, this electromagnetic field standing wave can be corresponding to the operating frequency of antenna.L type strip-shaped conductive pattern 14,16 forms approximate open-circuit at a, b point, forms earthed circuit in a ', b ' position, and hence one can see that forms the magnetic field minute surface at a, b place, forms the electric field minute surface in a ', b ' position.Therefore, the length of L type strip-shaped conductive pattern 14,16 is about the integral multiple of quarter-wave or wavelength.The equivalent dielectric coefficient of wavelength can be learnt that the electric field strength of launching can be released by following formula by the transmission line formula:
E
θ＝-(jk
0)e-
jk0/4πr∫∫[-Mxsinφ+Mycosφ]ds
E
φ＝[(jk
0)e-
jk0/4πr]cosθ∫∫[Mxcosφ+Mysinφ]ds
The antenna ends that is transmitted in owing to plane of the present utility model slot antenna, each is made up of electric field minute surface, magnetic field minute surface, therefore the electric field and the very big position in magnetic field, minimum position are interlaced as can be known, so when the input impedance at a, b place arrives maximum, the input impedance of a ', b ' position then reaches minimum, can find one 50 ohm input impedance between a ', b ':
Z＝∫
w∫
sEds/wdw/∫idw
Wherein, electric field is directly proportional with current potential, and electric current is directly proportional with magnetic field, and therefore the input impedance at load point c place is best.
Plane of the present utility model slot antenna has utilized the mechanism that forms resonance between L type strip-shaped conductive pattern 14,16 (using two copper foils) and ground connection Copper Foil ring patterns 10.L type strip-shaped conductive pattern 14, the 16 generation broadband properties that intercouples between the two.Coupling between the L type strip-shaped conductive pattern 14,16 can be a direct coupling system, as the coupling Copper Foil 18 of Fig. 1, also can be Air Coupling (as Fig. 2) mode.Its principle is to be considered as shown in Figure 3 equivalent electric circuit to the double resonance groove, by double-resonant circuit frequency range is broadened.In the slot antenna of plane of the present utility model, L type strip-shaped conductive pattern 14,16 one-tenth L types, making the directivity of this antenna thus is 2.14dB, it is low to be compared to general antenna directivity.Therefore can adjust the direction that receives or launch, Fig. 4 is the antenna pattern of plane of the present utility model slot antenna.
For an embodiment, distance between the L type strip-shaped conductive pattern 14,16 is less than 1 micron, the ratio on the minor face of L type strip-shaped conductive pattern and long limit is between 0.1 and 1, and the ratio of the width of the spacing of L type strip-shaped conductive pattern 14,16 and L type strip-shaped conductive pattern is between 0.1 and 1.
In sum, plane of the present utility model slot antenna has the following advantages:
1, the L type slot antenna structure of monolateral ground connection is beneficial to directly or Air Coupling, forms standing wave between this pair of L type strip-shaped conductive pattern and ground connection Copper Foil ring patterns.
2. can double resonance be coupled, thereby produce broadband properties.
3. slot antenna resonance Copper Foil is by middle feed-in.
The above only is a best specific embodiment of the present utility model, actual being not limited thereto, and all have identical or the variation person of the principle of equal effects, is all the protection range of this patent.
Claims (10)
1, a kind of plane slot antenna comprises: circuit board, and the earth lead pattern, this earth lead pattern arrangement is characterized in that on this circuit board: also comprise two L type strip-shaped conductive patterns single-end earthed, it is configured in the above-mentioned earth lead pattern; One end of these two L type strip-shaped conductive patterns is connected with above-mentioned earth lead pattern respectively; By direct or Air Coupling, between these two L type strip-shaped conductive patterns and above-mentioned earth lead pattern, form standing wave and the electromagnetic wave signal is emitted to the external world; Above-mentioned earth lead pattern has a breach, disposes a signal feed-in pattern in this breach, and one in this signal feed-in pattern and above-mentioned two the L type strip-shaped conductive patterns is connected.
2, plane according to claim 1 slot antenna, it is characterized in that: described earth lead pattern is a ground connection Copper Foil ring patterns.
3, plane according to claim 1 slot antenna is characterized in that: described L type strip-shaped conductive pattern is the banded copper foil pattern of L type.
4, plane according to claim 1 slot antenna, it is characterized in that: the electronic circuit of described circuit board and this plane slot antenna is structure as a whole.
5, plane according to claim 1 slot antenna, it is characterized in that: the distance between described two L type strip-shaped conductive patterns is less than one micron.
6, plane according to claim 1 slot antenna is characterized in that: the ratio on the minor face of described L type strip-shaped conductive pattern and long limit is between 0.1 and 1.
7, plane according to claim 1 slot antenna, it is characterized in that: the ratio of the width of the spacing of described two L type strip-shaped conductive patterns and this L type strip-shaped conductive pattern is between 0.1 and 1.
8, plane according to claim 1 slot antenna is characterized in that: a coupling Copper Foil is arranged between described two L type strip-shaped conductive patterns.
9, plane according to claim 1 slot antenna, it is characterized in that: described signal feed-in pattern is a square wave pattern.
10, plane according to claim 1 slot antenna, it is characterized in that: described signal feed-in pattern is a strip pattern.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226511 CN2488228Y (en) | 2001-06-05 | 2001-06-05 | Plane slot antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01226511 CN2488228Y (en) | 2001-06-05 | 2001-06-05 | Plane slot antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2488228Y true CN2488228Y (en) | 2002-04-24 |
Family
ID=33642134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01226511 Expired - Fee Related CN2488228Y (en) | 2001-06-05 | 2001-06-05 | Plane slot antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2488228Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044750A (en) * | 2009-10-15 | 2011-05-04 | 宏达国际电子股份有限公司 | Hand-held device and plane L-shaped antenna thereof |
| CN101227202B (en) * | 2007-01-19 | 2011-07-27 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
-
2001
- 2001-06-05 CN CN 01226511 patent/CN2488228Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101227202B (en) * | 2007-01-19 | 2011-07-27 | 鸿富锦精密工业（深圳）有限公司 | Electronic device |
| CN102044750A (en) * | 2009-10-15 | 2011-05-04 | 宏达国际电子股份有限公司 | Hand-held device and plane L-shaped antenna thereof |
| CN102044750B (en) * | 2009-10-15 | 2013-06-12 | 宏达国际电子股份有限公司 | Hand-held device and plane L-shaped antenna thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |