CN104901024B - Applied to the multi-mode conical antenna system in WIFI - Google Patents
Applied to the multi-mode conical antenna system in WIFI Download PDFInfo
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- CN104901024B CN104901024B CN201510134836.5A CN201510134836A CN104901024B CN 104901024 B CN104901024 B CN 104901024B CN 201510134836 A CN201510134836 A CN 201510134836A CN 104901024 B CN104901024 B CN 104901024B
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- 239000000758 substrate Substances 0.000 claims abstract description 16
- 230000008859 change Effects 0.000 claims abstract description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 9
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 10
- 230000005855 radiation Effects 0.000 description 10
- 230000008901 benefit Effects 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000011889 copper foil Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- RLLPVAHGXHCWKJ-IEBWSBKVSA-N (3-phenoxyphenyl)methyl (1s,3s)-3-(2,2-dichloroethenyl)-2,2-dimethylcyclopropane-1-carboxylate Chemical compound CC1(C)[C@H](C=C(Cl)Cl)[C@@H]1C(=O)OCC1=CC=CC(OC=2C=CC=CC=2)=C1 RLLPVAHGXHCWKJ-IEBWSBKVSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004422 calculation algorithm Methods 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000686 essence Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The present invention provides a kind of multi-mode conical antenna system being applied in WIFI, the antenna element being connected including substrate, with the substrate, the antenna element is made up of four independent antennas, each independent antenna has independent switch, conducting by controlling switch forms specific antenna pattern with disconnection, and more preferable Radio Link is provided for communication apparatus.Compared with prior art, antenna system small volume of the invention, working band be wide, antenna pattern can change and the lower antenna being more easily manufactured of cost.
Description
Technical field
The invention belongs to field of antenna, and in particular to one group a taper is made up of four independent antennas antenna list
Member, by each independent antenna of Electronic Control, has formed specific antenna pattern, adaptive environment is that transceiver is carried
For reliable, efficient communication link link.
Background technology
Antenna system is essential during communication system is constituted, and in conventional radio communication, individual antenna is used respectively
In emission source and receiving terminal.This system be called SISO (single input single output, i.e.,：Single-shot list is received).This
Multipath effect easily occurs for the system of sample to produce problem.When electromagnetic wave runs into the barrier such as hills, valley, building, electric wire
When hindering thing, it may occur that the problems such as reflection, diffraction, scattering, therefore electromagnetic wave can arrive at multiple paths.The scattering of delay
Signal can cause signal fadeout, edge call drop (cliff effect) and intermittent reception (such as the form of picket fence).In number
In word communication system, such as internet, this can cause message transmission rate to decline, and can increase error rate of system.
The worry brought by Multipath Transmissions such as reflection, deflection, refraction, scatterings can be reduced or eliminated using smart antenna.
Smart antenna is a kind of digital wireless communication antenna system, its diversity effect at source (emitter), destination (receiver) all
There is obvious advantage.The advantage of diversity effect is that multiple radio frequencies (Radio Frequency, abbreviation RF) signal is launched simultaneously
And/or receive, to improve data transmission bauds, reduce error rate.Smart antenna is also referred to as adaptive array, multiple antennas,
Recently be also designated as MIMO (Multiple-Input Multiple-Out-put, i.e.,：MIMO), it is that one kind utilizes intelligence
Can signal processing algorithm recognize the array antenna of space arrival bearing (DOA) and feature, and calculate the formation of antenna beam
A mobile target can be followed the trail of and positioned to amount, the wave beam for controlling antenna using control unit.
Currently used most of smart antennas are all made up of antenna array, by change each antenna element amplitude,
Phase constitutes different antenna patterns, but this antenna array is normally only adaptively adjusted in certain a piece of particular sector,
360 degree of omnidirectional's coverings can not be met to require.If without very accurate layout, required it is difficult to meet covering.Therefore, it is badly in need of a kind of
The antenna system of antenna radiation pattern can be flexibly controlled in the horizontal plane.
The content of the invention
The purpose of this segment description is some frameworks for summarizing the present invention, then introduces some preferred specific embodiments,
Some are had in this segment description and the description in summary to simplify and omission, in order to avoid the description and summary for obscuring this section
Description.Such simplification is not in limitation the scope of the present invention.
It is an object of the invention to provide a kind of antenna system, it can provide the radio frequency link of vertical polarization.Including one
Group is made up of the antenna element of a conical by its shape, substrate and peripheral control circuits four independent antennas.Pass through electronics control
The each independent antenna of system, has formed specific antenna pattern, and adaptive environment is provided reliably, efficiently for transceiver
Communication link is linked.
According to a preferred embodiment of the invention, conical antenna unit is made up of four independent metal conical surfaces.By setting
Meter, simulation calculation draw the parameters such as the specific bottom surface radius of metal conical surface, coning angle, height.Then by metal conical surface along hypotenuse
The quartering, obtains four duplicate antennas.
According to a preferred embodiment of the invention, each conical surface antenna is fed using at cone angle, and one is passed through at feed
Electronic switch (rf diode) is connected with peripheral control circuits.Each electronic switch be also it is independent, can be with electronics control
The state of respective antenna processed, is connected or disconnected.
According to different purposes, present invention could apply to one of a solution, a kind of device or a system
Point.According to one embodiment, the present invention is a kind of antenna system, and it includes：One group constitutes a cone by four independent antennas
The antenna element of shape, each independent antenna is switched on or off by electronic switch control, so as to change the spoke of antenna system
Directional diagram is penetrated, more preferable Radio Link is provided to communication apparatus.
The features of the present invention and advantage are that there is provided a kind of small volume, working band be wide, antenna pattern can change
And the lower antenna being more easily manufactured of cost.The present invention also has Some features and advantage by following accompanying drawing and example
Illustrated in embodiment.
Brief description of the drawings
The following drawings and description contribute to feature, the advantage of the more deep understanding present invention.
Fig. 1 show one group of three-dimensional view that the antenna element of a taper is made up of four independent antennas；
Fig. 2 show one group of top view that the antenna element of a taper is made up of four independent antennas；
Fig. 3 show conical antenna unit feed and control principle topology view；
Fig. 4 show one group of side view that the antenna element of a taper is made up of four independent antennas；
Fig. 5 A show the standing wave pattern of conical antenna unit when all stand-alone antennas are both turned on；
Fig. 5 B show the horizontal plane radiation pattern corresponding to Fig. 5 A antenna modes；
Fig. 6 A show the conducting of any one stand-alone antenna, and conical antenna unit stays when its excess-three stand-alone antenna disconnects
Ripple figure；
Fig. 6 B show the horizontal plane radiation pattern corresponding to Fig. 6 A antenna modes；
Fig. 7 A show two adjacent stand-alone antenna conductings, conical antenna unit when other two stand-alone antenna disconnects
Standing wave pattern；
Fig. 7 B show the horizontal plane radiation pattern corresponding to Fig. 7 A antenna modes；
Fig. 8 A show the disconnection of any one stand-alone antenna, and conical antenna unit stays when its excess-three stand-alone antenna is turned on
Ripple figure；
Fig. 8 B show the horizontal plane radiation pattern corresponding to Fig. 8 A antenna modes.
Embodiment
The detailed description of the present invention contain process, step, logical operation, processing and other using symbol it is direct or
The operation for showing that communicator is similar with the coupling of feeding network etc. connect.This area is generally familiar with the description of these processes
Technical staff is used for making effective link up with the technical staff of other same domains.
" specific embodiment " or " specific embodiment " used in describing below refers to combine in the specific embodiment
Described special characteristic, structure or characteristic, and including at least a specific embodiment in the present invention.Occur " one
In individual specific embodiment " it is not necessarily meant to refer in same specific embodiment, these specific embodiments are also not present mutually exclusive
Or mutually replace.
Operator always searches for a kind of day that can be provided in the optimal wireless power covering of level orientation and small volume
Linear system is united.An embodiment provides a kind of antenna system, including one group constitutes one by four independent antennas
The antenna element of taper, substrate and peripheral control circuits.By each independent antenna of Electronic Control, specific spoke has been formed
Directional diagram is penetrated, adaptive environment provides reliable, efficient communication link link for transceiver.In addition, the reality of the present invention
The antenna system size for applying example introduction is small, and easy to manufacture there is provided a kind of inexpensive solution to meet the market demand.
It is described with reference to, wherein identical number designation refers to identical part in different figures.It is specific at one
In embodiment, Fig. 1 show the stereogram of conical antenna system 100, and the antenna of a taper is made up of four independent antennas
Unit 101 a, substrate 102 and peripheral control circuits being made up of printed circuit board (PCB) (PCB) is constituted, wherein antenna element by
Copper sheet is made.
In this particular embodiment, Fig. 2 is the top view of conical antenna system 100, and conical antenna unit 101 is only by four
Vertical antenna 201-204 compositions, the projection of each independent antenna on substrate 102 is that a quarter is circular, their top
Angle 205 is 90 degree.In addition, the interval 206 between the adjacent stand-alone antenna of each two is all consistent.
In this particular embodiment, Fig. 3 show the feed concept view of conical antenna system 100, it can be seen that 301 are
One piece of medium base, above it, four independent conical antenna 201-204 correspond to be welded on the upper strata of medium base 301 respectively
Copper foil 311-314 on, 303-306 is four independent switches, four independent switch 303- described in this specific embodiment
306 be RF switch diode, and the corresponding stand-alone antenna in the side each switched is connected, and opposite side passes through corresponding respectively
Metallic vias 307-310 is connected with the upper copper 302 of substrate 102, is encouraged from substrate bottom copper foil to substrate upper copper, complete
Into feed.
Fig. 4 show the side view of conical antenna system 100, can be seen with apparent, conical antenna unit 101 is welded
On the copper foil on the upper strata of medium base 301, four independent switch 303-306 are welded on medium base 301, side connection day
Line, opposite side is connected to the upper copper 302 of substrate by the via that metallizes.The present invention can substantially be understood from view to implement
The key structure such as gradient, side of conical antenna unit in example.
In electronics, diode is a two-terminal electronic element, with asymmetrical conductance.Electric current forward stream is out-of-date,
It has the resistance value of very low (ideal situation is zero), and the reverse direction resistance value of electric current is very high (ideal situation is infinity).Two
The most common function of pole pipe is to allow electric current positive by (that is, diode forward direction), is reversed current through while stopping
(that is, diode reverse direction).Currently, a kind of most common semiconductor diode is made of one kind by semi-conducting material crystalline wafer
P-n junction, be connected to two electric terminals.In the present embodiment, RF switch diode 303-306 one end connection antenna, another
End connects feed by the via that metallizes, during switch conduction, corresponding antenna conducting, and when switching off, corresponding antenna disconnects.
Because four independent antenna 201-204 have used four RF switch diode 303-306 in the present embodiment, in theory, have
24=16 kinds of different radiation characteristics are available.
It should be noted that in this embodiment, the antenna element being connected on the substrate is one group.In other implementations
In example, the antenna element being connected on the substrate is multigroup, and each independent antenna has independent switch, passes through controlling switch
Conducting and disconnection form specific antenna pattern, provide more preferable Radio Link for communication apparatus.
For antenna normal work, it is necessary to ensure that the antenna pattern of antenna and input impedance are all in acceptable scope.
Fig. 5 A, 6A, 7A show voltage standing wave ratio performance of Fig. 1 antenna systems 100 under 4 different operator schemes with 8A, and voltage is stayed
Bob is the function of reflectance factor, and it describes the reflection power of antenna end.Fig. 5 A are omni-directional modes, and four diodes are all led
Logical, each antenna element independently works.Fig. 5 B show the corresponding horizontal plane radiation pattern of omni-directional mode.
Fig. 6 A show the conducting of any one stand-alone antenna, and conical antenna unit stays when its excess-three stand-alone antenna disconnects
Ripple figure, Fig. 6 B show the corresponding horizontal plane radiation pattern of Fig. 6 mode As.
Fig. 7 A show two adjacent stand-alone antenna conductings, conical antenna unit when other two stand-alone antenna disconnects
Standing wave pattern, Fig. 7 B show the corresponding horizontal plane radiation pattern of Fig. 7 mode As.
Fig. 8 A show the disconnection of any one stand-alone antenna, and conical antenna unit stays when its excess-three stand-alone antenna is turned on
Ripple figure, Fig. 8 B show the corresponding horizontal plane radiation pattern of Fig. 8 mode As.
Although the present invention is described in detail in conjunction with specific embodiments, but foregoing description is showing for the present invention
Example, and it is not construed to limitation of the present invention.It will be appreciated by persons skilled in the art that all essences in the present invention
Any modification, equivalent substitution made within refreshing and principle etc., should be included in the scope of the protection.Therefore, originally
The scope of invention is defined as the explanation of its protection domain rather than above example.
Claims (9)
1. a kind of antenna system, it is characterised in that：It includes：
One substrate；
The antenna element being connected with the substrate, the antenna element is made up of four stand-alone antennas, four independent days
The tapered shape of antenna element of line composition, each described antenna is in have between conical surface shape, the adjacent stand-alone antenna of each two
There is gap, four stand-alone antennas have independent switch, and the stand-alone antenna that the side of each independent switch is corresponding is connected,
Opposite side is connected by corresponding metallic vias respectively with the upper copper of substrate, when independent switch is turned on, corresponding independent day
Line is turned on, when independent switch disconnects, and corresponding stand-alone antenna disconnects.
2. antenna system as claimed in claim 1, it is characterised in that：The antenna element is made up of metallic copper.
3. antenna system as claimed in claim 1, it is characterised in that：The substrate is printed circuit board (PCB).
4. antenna system as claimed in claim 1, it is characterised in that：Gap between the adjacent antenna of each two is identical.
5. antenna system as claimed in claim 1, it is characterised in that：The drift angle of the conical surface shape antenna is 90 degree.
6. antenna system as claimed in claim 1, it is characterised in that：The drift angle and base of each independent conical surface shape antenna
Plate is connected by boss.
7. antenna system as claimed in claim 1, it is characterised in that：Each independent switch is the pole of RF switch two
Pipe.
8. antenna system as claimed in claim 1, it is characterised in that：By controlling circuit to change the shape of each independent switch
State, can constitute 24=16 kinds of different antenna patterns.
9. antenna system as claimed in claim 1, it is characterised in that：The antenna element is one or more groups of.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134836.5A CN104901024B (en) | 2015-03-25 | 2015-03-25 | Applied to the multi-mode conical antenna system in WIFI |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510134836.5A CN104901024B (en) | 2015-03-25 | 2015-03-25 | Applied to the multi-mode conical antenna system in WIFI |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104901024A CN104901024A (en) | 2015-09-09 |
| CN104901024B true CN104901024B (en) | 2017-11-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510134836.5A Active CN104901024B (en) | 2015-03-25 | 2015-03-25 | Applied to the multi-mode conical antenna system in WIFI |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450693B (en) * | 2016-09-30 | 2024-02-20 | 广东通宇通讯股份有限公司 | Indoor omnidirectional ceiling antenna |
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| CN2263830Y (en) * | 1996-03-19 | 1997-10-01 | 中国人民解放军信息工程学院 | Butterfly low-top omnidirectional antenna |
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| CN1875520A (en) * | 2003-10-30 | 2006-12-06 | 松下电器产业株式会社 | Antenna device |
| CN103682610B (en) * | 2013-12-06 | 2016-05-11 | 中国科学院深圳先进技术研究院 | reconfigurable antenna and system thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07273534A (en) * | 1994-03-28 | 1995-10-20 | Matsushita Electric Works Ltd | Multi-frequency antenna |
| CN2263830Y (en) * | 1996-03-19 | 1997-10-01 | 中国人民解放军信息工程学院 | Butterfly low-top omnidirectional antenna |
| US6677913B2 (en) * | 2001-06-19 | 2004-01-13 | The Regents Of The University Of California | Log-periodic antenna |
| CN1845379A (en) * | 2005-04-08 | 2006-10-11 | 中国科学院微电子研究所 | Microstrip antenna array with high gain and wide angle field lobe |
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| CN102396111A (en) * | 2009-04-16 | 2012-03-28 | 日本电气株式会社 | Antenna device and multi-antenna system |
| CN102891353A (en) * | 2012-09-29 | 2013-01-23 | 武汉虹信通信技术有限责任公司 | Umbrella-shaped ultra-wideband bipolarization base station antenna radiation unit |
| CN203085766U (en) * | 2012-11-14 | 2013-07-24 | 华南理工大学 | Directional diagram reconfigurable disk micro-strip antenna based on S-PIN diodes |
| CN203119097U (en) * | 2013-03-21 | 2013-08-07 | 中国移动通信集团公司 | Dual polarized antenna of indoor distribution system |
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| Publication number | Publication date |
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| CN104901024A (en) | 2015-09-09 |
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Denomination of invention: Multi mode conical antenna system applied in WIFI Effective date of registration: 20230609 Granted publication date: 20171107 Pledgee: Hangzhou Gaoxin Financing Guarantee Co.,Ltd. Pledgor: Kangkai Technology (Hangzhou) Co.,Ltd. Registration number: Y2023330001151 |
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Denomination of invention: A multi-mode conical antenna system applied in WIFI Granted publication date: 20171107 Pledgee: Hangzhou Gaoxin Financing Guarantee Co.,Ltd. Pledgor: Kangkai Technology (Hangzhou) Co.,Ltd. Registration number: Y2024330000898 |
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