CN102969563B - A kind of double frequency band aerial and preparation method thereof - Google Patents
A kind of double frequency band aerial and preparation method thereof Download PDFInfo
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- CN102969563B CN102969563B CN201210474121.0A CN201210474121A CN102969563B CN 102969563 B CN102969563 B CN 102969563B CN 201210474121 A CN201210474121 A CN 201210474121A CN 102969563 B CN102969563 B CN 102969563B
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Abstract
The present invention discloses a kind of double frequency band aerial and preparation method thereof, and described double frequency band aerial comprises: dielectric hexahedron, the first metal patch and the second metal patch; Described first metal patch is F type, and described first metal patch comprises minor face band, lower minor face band and long sideband, and described upper minor face band, described lower minor face band and described long sideband correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type; Described first metal patch is positioned at the hexahedral lower surface of described dielectric; Described second metal patch is metal tape, and described second metal patch is positioned at the hexahedral upper surface of described dielectric; Upper minor face band and the lower minor face band of described first metal patch are electrically connected with described second metal patch respectively.The present invention can solve the insulating material requiring that dielectric hexahedron adopts high dielectric constant value, the problem that manufacturing cost is higher.
Description
Technical field
The present invention relates to the communications field, particularly a kind of double frequency band aerial and preparation method thereof.
Background technology
At present, communication equipment often needs to possess double frequency band aerial.Such as, in the WiFi standard of WLAN (wireless local area network), working frequency range is divided into 2.4-2.48G and 4.9G-5.8G two frequency ranges.Therefore, need to use double frequency band aerial in the terminal of WLAN (wireless local area network).
In prior art, the technical scheme realizing double frequency band aerial is, dielectric hexahedral surface paving sheet metal, such as copper sheet, mode realize.The sheet metal form spread in double frequency band aerial is different, and the effect of the receiving and transmitting signal of antenna can be made different.The double frequency band aerial of prior art, because being subject to the limitation that it is arranged, causing requirement dielectric hexahedron to adopt the insulating material of high dielectric constant value, causing the increase of manufacturing cost thus.
Summary of the invention
The invention provides a kind of double frequency band aerial and preparation method thereof, to solve the insulating material requiring that dielectric hexahedron adopts high dielectric constant value, the problem that manufacturing cost is higher.
The invention discloses a kind of double frequency band aerial, described double frequency band aerial comprises: dielectric hexahedron, the first metal patch and the second metal patch;
Described first metal patch is F type, and described first metal patch comprises minor face band, lower minor face band and long sideband, and described upper minor face band, described lower minor face band and described long sideband correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type;
Described first metal patch is positioned at the hexahedral lower surface of described dielectric;
Described second metal patch is metal tape, and described second metal patch is positioned at the hexahedral upper surface of described dielectric;
Upper minor face band and the lower minor face band of described first metal patch are electrically connected with described second metal patch respectively.
Wherein, described second metal patch be along described upper surface central folding from neighboring to described upper surface then form the metal tape of helix shape.
Wherein, turn back to the direction of described upper minor face band and side, described lower minor face band place in the end of described long sideband, the end after turning back is parallel with described lower minor face band with described upper minor face band.
Wherein, described dielectric hexahedron comprises: multiple inside is the via hole of metal,
At least one via hole in described multiple via hole connects described second metal patch and described upper minor face band, and at least one via hole in described multiple via hole connects described second metal patch and described lower minor face band.
Wherein, described first metal patch also comprises: upper minor face elongated strap and lower minor face elongated strap;
Described upper minor face elongated strap and described upper minor face band, along described long sideband symmetry, are positioned at the hexahedral side of described dielectric, and are connected with described second metal patch after bending;
Described lower minor face elongated strap and described lower minor face band, along described long sideband symmetry, are positioned at the hexahedral side of described dielectric, and are connected with described second metal patch after bending.
Wherein, in described second metal patch, subregion is along the long limit of the hexahedral upper surface of described dielectric and/or minor face bending, and in the second metal patch of described bending, subregion is positioned at the hexahedral side of described dielectric.
Wherein, in the long sideband of described first metal patch, subregion is rolled over along long spring adjacent with described long sideband in the hexahedral lower surface of described dielectric, and in the long sideband of described bending, subregion is positioned at the hexahedral side of described dielectric.
Wherein, in metallic plate, integral cutting goes out described first metal patch of F type;
And/or,
In metallic plate, integral cutting goes out described second metal patch.
Wherein, in metallic plate, integral cutting goes out described first metal patch as a whole and described second metal patch.
The invention also discloses a kind of method making above-mentioned arbitrary double frequency band aerial, described method comprises:
Make dielectric hexahedron;
Make the first metal patch and the second metal patch; Described first metal patch is F type, and described first metal patch comprises minor face band, lower minor face band and long sideband, and described upper minor face band, described lower minor face band and described long sideband correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type; Described second metal patch is metal tape;
Described first metal patch is laid on the hexahedral lower surface of described dielectric, described second metal patch is laid on the hexahedral upper surface of described dielectric; Upper minor face band and the lower minor face band of described first metal patch are electrically connected with described second metal patch respectively.
The invention has the beneficial effects as follows: by adopting technical scheme: double frequency band aerial comprises: dielectric hexahedron, the first metal patch and the second metal patch; First metal patch is F type, and the first metal patch comprises minor face band, lower minor face band and long sideband, and upper minor face band, lower minor face band and long sideband correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type; First metal patch is positioned at the hexahedral lower surface of dielectric; Second metal patch is metal tape, and the second metal patch is positioned at the hexahedral upper surface of dielectric; Upper minor face band and the lower minor face band of the first metal patch are electrically connected with the second metal patch respectively.Wherein, the upper minor face band of the first metal patch is ground wire, and the lower minor face band of the first metal patch is feeder line, and the first metal patch is an inverse-F antenna; The upper minor face band of the first metal patch and lower minor face band are electrically connected with the second metal patch respectively, on this, minor face band, lower minor face band and the second metal patch form another inverse-F antenna thus.Therefore, antenna of the present invention is two inverse-F antennas, can realize the transmitting-receiving of dual band signal.In addition, adopt the two inverse-F antennas in technical solution of the present invention, do not require that dielectric hexahedron adopts the insulating dielectric materials of high-k, this dielectric hexahedron adopts customary insulation dielectric material, thus reduces manufacturing cost.Further, the two inverse-F antennas in technical solution of the present invention are adopted, debugging of being more convenient for, the receiving and transmitting signal better effects if of antenna.
Accompanying drawing explanation
Fig. 1 shows the schematic diagram of the first metal patch in one embodiment of the invention;
Fig. 2 shows the schematic diagram of the second metal patch in one embodiment of the invention;
Fig. 3 shows the schematic diagram of double frequency band aerial in one embodiment of the invention;
Fig. 4 shows upper minor face elongated strap and the schematic diagram of lower minor face elongated strap in side of double frequency band aerial in one embodiment of the invention;
Schematic diagram in side after the region adjoined with another long limit that Fig. 5 shows the second metal patch of double frequency band aerial in one embodiment of the invention bends;
Fig. 6 shows subregion in the second metal patch of double frequency band aerial in one embodiment of the invention and prolongs schematic diagram in side after the bending of upper surface minor face;
Fig. 7 shows the schematic diagram under the first metal patch of integral cutting in one embodiment of the invention and the second metal patch deployed condition; And
Fig. 8 shows the flow chart of the manufacture method of double frequency band aerial in one embodiment of the invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.In accompanying drawing, Grey Point fill area is the first metal patch or the second metal patch.
Please refer to Fig. 1 to Fig. 3, a kind of double frequency band aerial of the present invention comprises: dielectric hexahedron 300, first metal patch 100 and the second metal patch 200.
Please refer to Fig. 1 and Fig. 3, the first metal patch 100 is F type, and the first metal patch 100 comprises minor face band 110, lower minor face band 120 and long sideband 130.Upper minor face band 110, lower minor face band 120 and long sideband 130 correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type.First metal patch 100 is positioned at the lower surface of dielectric hexahedron 300.
For example, turn back in the direction of the end 131 of long sideband 130 upwards minor face band 110 and side, lower minor face band 120 place, the end 131 after turning back is parallel with lower minor face band 120 with upper minor face band 110.With reference to Fig. 1, show the schematic diagram of the first metal patch in one embodiment of the invention.Wherein, the length of long sideband 130 is arranged by the requirement of the frequency band of receiving and transmitting signal.If because of the limitation of antenna size, make long sideband 130 length be greater than the length on the following table face length limit of dielectric hexahedron 300, then adopt shown in Fig. 1 by the mode of end 131 inflection of long sideband 130, long sideband 130 length is met requirement is set.Described end 131 is the part parallel with lower minor face with upper minor face band shown in Fig. 1.
Please refer to Fig. 2 and Fig. 3, the second metal patch 200 is metal tape, and the second metal patch 200 is positioned at the upper surface of dielectric hexahedron 300.
For example, the second metal patch 200 be along upper surface central folding from neighboring to upper surface then form the metal tape of helix shape.With reference to Fig. 2, show the schematic diagram of the second metal patch 200 in one embodiment of the invention.Wherein, the length of the second metal patch 200 is arranged by the requirement of the frequency band of receiving and transmitting signal.If because of the limitation of antenna size, the second metal patch 200 length is made to be greater than the length on the long limit of upper surface of dielectric hexahedron 300, then adopt the mode of being turned back by the second metal patch 200 shown in Fig. 2, the second metal patch 200 length is met requirement is set.
Upper minor face band 110 and the lower minor face band 120 of the first metal patch 100 are electrically connected with the second metal patch 200 respectively.
Wherein, the upper minor face band of the first metal patch is ground wire, and the lower minor face band of the first metal patch is feeder line, and the first metal patch is an inverse-F antenna; The upper minor face band of the first metal patch and lower minor face band are electrically connected with the second metal patch respectively, on this, minor face band, lower minor face band and the second metal patch form another inverse-F antenna thus.Therefore, antenna of the present invention is two inverse-F antennas, can realize the transmitting-receiving of dual band signal.In addition, adopt two inverse-F antennas of technical scheme in the present invention, do not require that dielectric hexahedron adopts the insulating dielectric materials of high-k, this dielectric hexahedron adopts customary insulation dielectric material, such as resin material FR4, just can realize double frequency-band receiving and transmitting signal, thus reduce manufacturing cost.Further, two inverse-F antennas of technical scheme in the present invention are adopted, debugging of being more convenient for, the receiving and transmitting signal better effects if of antenna.
In one embodiment of the invention, be connected with the second metal patch 200 with lower minor face band 120 by the upper minor face band 110 of via hole by the first metal patch 100.
Dielectric hexahedron 300 comprises: multiple inside is the via hole of metal.At least one via hole in multiple via hole connects the second metal patch 200 and upper minor face band 110.At least one via hole in multiple via hole connects the second metal patch 200 and lower minor face band 120.
See Fig. 3, show the schematic diagram of double frequency band aerial in one embodiment of the invention.This schematic diagram is the perspective view of double frequency band aerial, and internal part is represented by dashed line, to strengthen third dimension.In Fig. 3, the second metal patch 200 is positioned at the upper surface of dielectric hexahedron 300, and the shape of this second metal patch 200 is see Fig. 2, and the first metal patch 100 is positioned at the lower surface of dielectric hexahedron 300, and the shape of this first metal patch 100 is see Fig. 1.Dielectric hexahedron 300 comprises the first via hole 310 and the second via hole 320.First via hole 310 is in the second metal patch 200 and long sideband 130 and between the adjacent region of upper minor face band 110, in the both ends open of i.e. the first via hole 310, the region that an opening is adjacent with upper minor face band 110 in long sideband 130, the region of another opening in the second metal patch 200.Second via hole 320 is in the second metal patch 200 and long sideband 130 and between the adjacent region of lower minor face band 120, in the both ends open of i.e. the second via hole 320, the region that an opening is adjacent with lower minor face band 120 in long sideband 130, the region of another opening in the second metal patch 200.
Further, in metallic plate, integral cutting goes out the first metal patch 100 of F type; In metallic plate, integral cutting goes out the second metal patch 200.Namely in metallic plate, cut out the first metal patch 100 of the shape shown in Fig. 1, and in metallic plate, cut out the second metal patch 200 of the shape shown in Fig. 2.
, be connected by the second metal patch by via hole with upper minor face band and lower minor face band, this kind of connected mode technique is simple herein, is convenient to realize, further saves cost.
Please refer to Fig. 1 and Fig. 2, and Fig. 4 to Fig. 7, in one embodiment of the invention, be connected with the second metal patch 200 with lower minor face band 120 by the upper minor face band 110 of metal patch by the first metal patch 100.
First metal patch 100 comprises: upper minor face band 110, lower minor face band 120, long sideband 130, upper minor face elongated strap 110A and lower minor face elongated strap 120A.Upper minor face elongated strap 110A and upper minor face band 110, along long sideband 130 symmetry, are positioned at the side of dielectric hexahedron 300, and are connected with the second metal patch 200 after bending.Lower minor face elongated strap 120A and lower minor face band 120, along long sideband 130 symmetry, are positioned at the side of dielectric hexahedron 300, and are connected with the second metal patch 200 after bending.
In addition, in the present embodiment, the long sideband 130 of the first metal patch 100 has carried out bound edge.In the long sideband 130 of i.e. the first metal patch 100, subregion 130A rolls over along long spring adjacent with long sideband 130 in the lower surface of dielectric hexahedron 300, and in the long sideband 130 of bending, subregion 130A is positioned at the side of dielectric hexahedron 300.Bound edge is herein the needs in order to make the width of long sideband 130 meet receiving and transmitting signal place frequency band.
Second metal patch 200 has also carried out bound edge.The region 200A adjoined with upper surface long limit in second metal patch 200 rolls over along this long spring of the upper surface of dielectric hexahedron 300, and the region 200A of bending is positioned at the side of dielectric hexahedron 300.Region 200A in second metal patch 200 after this bending is connected with upper minor face elongated strap 110A and lower minor face elongated strap 120A.See Fig. 4, show upper minor face elongated strap and the schematic diagram of lower minor face elongated strap in side of double frequency band aerial in one embodiment of the invention.
The region 200C adjoined with another long limit of upper surface in second metal patch 200 rolls over along this long spring of the upper surface of dielectric hexahedron 300, and the region 200C of bending is positioned at the side of dielectric hexahedron 300.See Fig. 5, the schematic diagram in side after the region adjoined with another long limit showing the second metal patch of double frequency band aerial in one embodiment of the invention bends.
The region 200B adjoined with upper surface minor face in second metal patch 200 bends along a minor face of the upper surface of dielectric hexahedron 300, and the region 200B of bending is positioned at the side of dielectric hexahedron 300.See Fig. 6, the schematic diagram in side after the region adjoined with a minor face showing the second metal patch 200 of double frequency band aerial in one embodiment of the invention bends.
Second metal patch 200 bound edge is herein the needs in order to make the width of the second metal patch 200 meet receiving and transmitting signal place frequency band.
In metallic plate, integral cutting goes out the first metal patch 100 and the second metal patch 200 as a whole.Namely in metallic plate, integral cutting goes out figure as shown in Figure 7.Prolong dotted line in Fig. 7 to bend, this metal patch entirety is laid on the surface of dielectric hexahedron 300.
Herein, carry out bending by integral cutting and manufacture double frequency band aerial, technique is simple, is convenient to realize, further saves cost.
See Fig. 8, show the flow chart of the manufacture method of double frequency band aerial in one embodiment of the invention.
Described method comprises the steps.
Step S810, makes dielectric hexahedron.
Step S820, makes the first metal patch and the second metal patch.Described first metal patch is F type, and described first metal patch comprises minor face band, lower minor face band and long sideband, and described upper minor face band, described lower minor face band and described long sideband correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type.Described second metal patch is metal tape.
Step S830, is laid on the hexahedral lower surface of dielectric by the first metal patch, the second metal patch is laid on the hexahedral upper surface of described dielectric.Upper minor face band and the lower minor face band of the first metal patch are electrically connected with the second metal patch respectively.
Preferably, described second metal patch be along described upper surface central folding from neighboring to described upper surface then form the metal tape of helix shape.
Preferably, turn back to the direction of described upper minor face band and side, described lower minor face band place in the end of described long sideband, the end after turning back is parallel with described lower minor face band with described upper minor face band.
Preferably,
Described making dielectric hexahedron also comprises:
The via hole that multiple inside is metal is set in dielectric hexahedron;
At least one via hole in described multiple via hole connects described second metal patch and described upper minor face band;
Described second metal patch and described lower minor face band is connected by least one via hole in described multiple via hole.
Further, described making first metal patch and the second metal patch also comprise:
In metallic plate, integral cutting goes out described first metal patch of F type;
And/or,
In metallic plate, integral cutting goes out described second metal patch.
Preferably, described first metal patch also comprises: upper minor face elongated strap and lower minor face elongated strap.
Described upper minor face elongated strap and described upper minor face band are along described long sideband symmetry, and described lower minor face elongated strap and described lower minor face band are along described long sideband symmetry.
Described making first metal patch also comprises:
After described upper minor face elongated strap bending, described upper minor face elongated strap is positioned at the hexahedral side of described dielectric, and is connected with described second metal patch;
After described lower minor face elongated strap bending, described upper minor face elongated strap is positioned at the hexahedral side of described dielectric, and is connected with described second metal patch.
Preferably, described making second metal patch also comprises:
By subregion in described second metal patch along the long limit of the hexahedral upper surface of described dielectric and/or minor face bending, in the second metal patch of described bending, subregion is positioned at the hexahedral side of described dielectric.
Preferably, described making first metal patch also comprises:
Rolled over along long spring adjacent with described long sideband in the hexahedral lower surface of described dielectric subregion in the long sideband of described first metal patch, in the long sideband of described bending, subregion is positioned at the hexahedral side of described dielectric.
Further, described making first metal patch and the second metal patch specifically comprise:
In metallic plate, integral cutting goes out described first metal patch as a whole and described second metal patch.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (8)
1. a double frequency band aerial, is characterized in that, described double frequency band aerial comprises: dielectric hexahedron, the first metal patch as a whole and the second metal patch;
Described first metal patch is F type, described first metal patch comprises minor face band, lower minor face band, long sideband, upper minor face elongated strap and lower minor face elongated strap, described upper minor face band, described lower minor face band and described long sideband correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type; Described upper minor face elongated strap and described upper minor face band, along described long sideband symmetry, are positioned at the hexahedral side of described dielectric, and are connected with described second metal patch after bending; Described lower minor face elongated strap and described lower minor face band, along described long sideband symmetry, are positioned at the hexahedral side of described dielectric, and are connected with described second metal patch after bending;
Described first metal patch is positioned at the hexahedral lower surface of described dielectric;
Described second metal patch is metal tape, and described second metal patch is positioned at the hexahedral upper surface of described dielectric;
Upper minor face band and the lower minor face band of described first metal patch are electrically connected with described second metal patch respectively;
Wherein, described first metal patch as a whole and described second metal patch is made by integral cutting in metallic plate.
2. double frequency band aerial according to claim 1, is characterized in that,
Described second metal patch be along described upper surface central folding from neighboring to described upper surface then form the metal tape of helix shape.
3. double frequency band aerial according to claim 1, is characterized in that,
Turn back to the direction of described upper minor face band and side, described lower minor face band place in the end of described long sideband, the end after turning back is parallel with described lower minor face band with described upper minor face band.
4., according to described double frequency band aerial arbitrary in claims 1 to 3, it is characterized in that,
Described dielectric hexahedron comprises: multiple inside is the via hole of metal,
At least one via hole in described multiple via hole connects described second metal patch and described upper minor face band, and at least one via hole in described multiple via hole connects described second metal patch and described lower minor face band.
5., according to described double frequency band aerial arbitrary in claims 1 to 3, it is characterized in that,
In described second metal patch, subregion is along the long limit of the hexahedral upper surface of described dielectric and/or minor face bending, and in the second metal patch of described bending, subregion is positioned at the hexahedral side of described dielectric.
6., according to described double frequency band aerial arbitrary in claims 1 to 3, it is characterized in that,
In the long sideband of described first metal patch, subregion is rolled over along long spring adjacent with described long sideband in the hexahedral lower surface of described dielectric, and in the long sideband of described bending, subregion is positioned at the hexahedral side of described dielectric.
7. double frequency band aerial according to claim 4, is characterized in that,
In metallic plate, integral cutting goes out described first metal patch of F type;
And/or,
In metallic plate, integral cutting goes out described second metal patch.
8. make a method for the double frequency band aerial according to any one of claim 1 to 7, it is characterized in that, described method comprises:
Make dielectric hexahedron;
In metallic plate, integral cutting goes out the first metal patch as a whole and the second metal patch; Described first metal patch is F type, described first metal patch comprises minor face band, lower minor face band, long sideband, upper minor face elongated strap and lower minor face elongated strap, described upper minor face band, described lower minor face band and described long sideband correspond respectively to the upper horizontal edge of F type, lower horizontal edge and vertical edge, composition F type; Described second metal patch is metal tape; Described upper minor face elongated strap and described upper minor face band are along described long sideband symmetry; Described lower minor face elongated strap and described lower minor face band are along described long sideband symmetry;
Described first metal patch is laid on the hexahedral lower surface of described dielectric, described second metal patch is laid on the hexahedral upper surface of described dielectric; Upper minor face band and the lower minor face band of described first metal patch are electrically connected with described second metal patch respectively; Described upper minor face elongated strap is positioned at the hexahedral side of described dielectric and is connected with described second metal patch; Described lower minor face elongated strap is positioned at the hexahedral side of described dielectric and is connected with described second metal patch.
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| CN1423366A (en) * | 2001-12-05 | 2003-06-11 | 智邦科技股份有限公司 | Two-frequency glass-fiber chip antenna |
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