CN109346822A - A kind of biradial arm WIFI antenna - Google Patents
A kind of biradial arm WIFI antenna Download PDFInfo
- Publication number
- CN109346822A CN109346822A CN201811288137.6A CN201811288137A CN109346822A CN 109346822 A CN109346822 A CN 109346822A CN 201811288137 A CN201811288137 A CN 201811288137A CN 109346822 A CN109346822 A CN 109346822A
- Authority
- CN
- China
- Prior art keywords
- wifi
- arm
- radiation arm
- biradial
- aerial radiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005855 radiation Effects 0.000 claims abstract description 70
- 230000003071 parasitic effect Effects 0.000 claims abstract description 39
- 230000008878 coupling Effects 0.000 claims abstract description 25
- 238000010168 coupling process Methods 0.000 claims abstract description 25
- 238000005859 coupling reaction Methods 0.000 claims abstract description 25
- 239000000758 substrate Substances 0.000 claims description 15
- 238000002955 isolation Methods 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 5
- 238000004891 communication Methods 0.000 abstract description 4
- 230000000295 complement effect Effects 0.000 abstract description 3
- 239000002131 composite material Substances 0.000 abstract description 2
- 238000005516 engineering process Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000024241 parasitism Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/2291—Supports; Mounting means by structural association with other equipment or articles used in bluetooth or WI-FI devices of Wireless Local Area Networks [WLAN]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Details Of Aerials (AREA)
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of biradial arm WIFI antennas, including the first WIFI aerial radiation arm, the 2nd WIFI aerial radiation arm and parasitic couplings unit；The parasitic couplings unit is set between the first WIFI antenna radiation unit and the 2nd WIFI antenna radiation unit.A kind of biradial arm WIFI antenna of the present invention keeps antenna horizontal directivity pattern complementary by using two mutually perpendicular onboard antennas, reaches horizontal direction omnidirectional, without dead angle in use.Meanwhile by the way that parasitic couplings unit is arranged in empty regions, so that isolation greatly increases between two WIFI antennas, the technical issues of overcoming mutual interference between two antennas existing in the prior art, the radiance and using effect of antenna are improved.It the composite can be widely applied to communication equipment field.
Description
Technical field
The present invention relates to communication equipment field more particularly to a kind of biradial arm WIFI antennas.
Background technique
With the development of science and technology, either smart phone, laptop or tablet computer, bluetooth are all that intelligence is set
Standby standard configuration.With the development of mobile internet, a large amount of intelligent wearable device is emerged now, and these is supported to apply
Development not only needs mobile software support, is equally also required to the support of Radio Transmission Technology.Antenna is a kind of transducer, transmitting
When, the high-frequency current of day bundle of lines transmitter is converted into spatial electromagnetic wave；When reception, antenna again turns the electromagnetic wave intercepted and captured from space
It is changed to high-frequency current and is sent into receiver.Design one small-power being applied in radio-frequency recognition system, short-distance wireless are received
Equipment is sent out, Antenna Design is pith therein.Good antenna system can make communication distance reach optimum state.
In the prior art, since the layout of printed circuit board is limited, the spacing very little between two WIFI antennas causes two
There is mutual interference phenomenon between a WIFI antenna, influences the practical effect of antenna.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, of the invention
One purpose is to provide a kind of biradial arm WIFI antenna, solves the technical issues of mutual interference is easy between two antennas.
The technical scheme adopted by the invention is that:
A kind of biradial arm WIFI antenna, including the first WIFI aerial radiation arm, the 2nd WIFI aerial radiation arm and parasitism
Coupling unit, parasitic couplings unit be set to the first WIFI antenna radiation unit and the 2nd WIFI antenna radiation unit it
Between.
Further, the first WIFI aerial radiation arm, the 2nd WIFI aerial radiation arm are in 90 degree of angles.
Further, parasitic couplings unit includes the first parasitic radiation arm and the second parasitic radiation arm, and described first is parasitic
One end of radiation arm connects with one end of the second parasitic radiation arm and forms 90 degree of angles.
Further, biradial arm WIFI antenna further includes empty regions；The empty regions include the first empty regions
With the second empty regions, first empty regions and the second empty regions are in 90 degree of right angles；First empty regions are close to institute
State the first WIFI aerial radiation arm；Second empty regions are close to the 2nd WIFI aerial radiation arm；In the first parasitic radiation arm
It sets in the first empty regions；The second parasitic radiation arm is built in the second empty regions.
Further, the first WIFI aerial radiation arm includes the first feed mouth and the second feed mouth；Described 2nd WIFI days
Beta radiation arm includes third feed mouth and the 4th feed mouth；The parasitic couplings unit includes first port and second port；Institute
The second feed mouth is stated adjacent to the first port and forms the first spacing with first port；Third feed mouth is adjacent to described the
Two-port netwerk forms the second spacing.
Further, biradial arm WIFI antenna further includes substrate, empty regions, the first WIFI aerial radiation arm, second
WIFI aerial radiation arm and parasitic couplings unit are respectively provided on the same substrate.
Further, substrate includes PCB printed circuit board and/or FPC printed circuit board.
Further, the marginal position of substrate is arranged in the first WIFI aerial radiation arm and the 2nd WIFI aerial radiation arm.
Further, substrate is integrally in rectangular configuration, the first WIFI aerial radiation arm and the 2nd WIFI aerial radiation arm pair
The corner position of rectangular configuration should be set.
The beneficial effects of the present invention are:
A kind of biradial arm WIFI antenna of the present invention makes antenna level side by using two mutually perpendicular onboard antennas
It is complementary to figure, reach horizontal direction omnidirectional, without dead angle in use.Meanwhile by the way that parasitic couplings unit is arranged in empty regions, make
It obtains isolation between two WIFI antennas to greatly increase, the technology of mutual interference between two antennas existing in the prior art is overcome to ask
Topic, effectively increases the radiance and using effect of antenna.In addition, by the setting of empty regions, so that antenna effectively shields
Metal is covered, the interference far from other metal devices, while resonance frequency can be changed according to the size of empty regions.
In addition, the composite can be widely applied to communication equipment field.
Detailed description of the invention
Fig. 1 is a kind of one embodiment schematic diagram of biradial arm WIFI antenna of the present invention；
Fig. 2 is a kind of one embodiment reflection parameters curve graph of biradial arm WIFI antenna of the present invention.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.
A kind of one embodiment schematic diagram of biradial arm WIFI antenna, with reference to Fig. 1, biradial arm WIFI antenna includes first
WIFI aerial radiation arm 1, the 2nd WIFI aerial radiation arm 2, parasitic couplings unit 3, (including the first empty regions of empty regions 4
41 and second empty regions 42), substrate.First WIFI aerial radiation arm 1, the 2nd WIFI aerial radiation arm 2, parasitic couplings unit
3 and empty regions 4 be respectively provided on the same substrate.
Wherein, substrate includes PCB printed circuit board and/or FPC printed circuit board etc., using PCB in the present embodiment
Printed circuit board.
Specifically, substrate is integrally in rectangular configuration, and the first WIFI aerial radiation arm 1 and the 2nd WIFI aerial radiation arm 2 are right
The corner position of rectangular configuration should be set.Wherein the first WIFI aerial radiation arm 1, the 2nd WIFI aerial radiation arm 2 are in 90
Spend angle.The PCB substrate and two position mutually perpendicular onboard antenna (the first WIFI of rectangular configuration are used in the present embodiment
Aerial radiation arm 1 and the 2nd WIFI aerial radiation arm 2) so that antenna horizontal directivity pattern is complementary, reach having for horizontal direction omnidirectional
Beneficial effect, and without dead angle in use.
Specifically, the first empty regions 41 and the second empty regions 42 are in 90 degree of angles, parasitic couplings unit 3 (including
First parasitic radiation arm 31 and the second parasitic radiation arm 32 are also in 90 degree of right angles) it is built in empty regions 4.First clearance zone
The first WIFI aerial radiation arm 1 is close in domain 41, and the second empty regions 42 are close to the 2nd WIFI aerial radiation arm 2, the first parasitic spoke
It penetrates arm 1 and is built in the first empty regions 41, the second parasitic radiation arm is built in the second empty regions.Pass through headroom in the present embodiment
The setting in region 4, so that the first WIFI aerial radiation arm 1 and the 2nd effectively shielding interference of WIFI aerial radiation arm 2, can such as make spoke
Interference of the arm far from other metal devices is penetrated, while resonance frequency can be changed according to the size of empty regions 4.
Specifically, the first WIFI aerial radiation arm 1 includes the first feed mouth A and the second feed mouth B, the 2nd WIFI antenna spoke
Penetrating arm 2 includes the third feed mouth F of feed mouth E and the 4th, and parasitic couplings unit 3 includes first port C and second port D.Wherein
Second feed mouth B forms the first spacing BC adjacent to first port C, and third feed mouth D forms the second spacing adjacent to second port E
DE.In the prior art, pcb board layout is limited, and often the spacing very little between two antennas, causes have mutual interference between two antennas
Phenomenon influences practical effect.In the present embodiment, the first WIFI aerial radiation arm 1 is isolated by setting parasitic couplings unit 3
With the 2nd WIFI aerial radiation arm 2, can effectively reduce between the first WIFI aerial radiation arm 1 and the 2nd WIFI aerial radiation arm 2
Mutual interference phenomenon, and can by adjust the first spacing BC and the second space D E size so that the radiance of antenna is optimal.
A kind of one embodiment reflection parameters curve graph of biradial arm WIFI antenna, with reference to Fig. 2.No. 1 curve is to increase parasitism
Isolation angle value between coupling unit the first two WIFI antenna, No. 2 curves are to increase parasitic couplings unit the first two WIFI antenna
Between isolation angle value, No. 1 curve and No. 2 curves take three sampled points (2.40GHZ, 2.45GHZ, 2.50GHZ) respectively.Such as figure
Shown in 2, before increasing parasitic couplings unit, the isolation between two WIFI antennas is about that -8dB arrives -9dB.Increase parasitic coupling
It after closing unit, is learnt by No. 2 curves, when sampled point is 2.40GHZ, isolation is -20.992dB, when sampled point is 2.45GHZ
When isolation be -20.682dB, when sampled point is 2.50GHZ isolation be -20.992dB, i.e., increase parasitic couplings unit after two
Isolation between a WIFI antenna is about -20dB.It follows that the isolation between antenna is increased, the radiation of antenna
Performance is optimized.The present embodiment is by two mutually perpendicular onboard antennas of setting and parasitic couplings unit, so that two antennas
Between isolation increase, efficiently solve the mutual interference phenomenon between antenna, improve the radiance and using effect of antenna.
It is to be illustrated to preferable implementation of the invention, but the invention is not limited to the implementation above
Example, those skilled in the art can also make various equivalent variations on the premise of without prejudice to spirit of the invention or replace
It changes, these equivalent deformations or replacement are all included in the scope defined by the claims of the present application.
Claims (9)
1. a kind of biradial arm WIFI antenna, which is characterized in that including the first WIFI aerial radiation arm, the 2nd WIFI aerial radiation
Arm and parasitic couplings unit；The parasitic couplings unit is set to the first WIFI antenna radiation unit and the 2nd WIFI antenna
Between radiating element.
2. a kind of biradial arm WIFI antenna according to claim 1, which is characterized in that the first WIFI aerial radiation
Arm and the 2nd WIFI aerial radiation arm are in 90 degree of angles.
3. a kind of biradial arm WIFI antenna according to claim 1, which is characterized in that the parasitic couplings unit includes
First parasitic radiation arm and the second parasitic radiation arm, one end of one end of the first parasitic radiation arm and the second parasitic radiation arm
It connects and forms 90 degree of angles.
4. a kind of biradial arm WIFI antenna according to claim 3, which is characterized in that further include empty regions；It is described
Empty regions include the first empty regions and the second empty regions, and first empty regions and the second empty regions are in 90 degree
Right angle；First empty regions are close to the first WIFI aerial radiation arm；Second empty regions are close to described second
WIFI aerial radiation arm；The first parasitic radiation arm is built in the first empty regions；The second parasitic radiation arm is built in
Second empty regions.
5. a kind of biradial arm WIFI antenna according to any one of claims 1 to 4, which is characterized in that described first
WIFI aerial radiation arm includes the first feed mouth and the second feed mouth；The 2nd WIFI aerial radiation arm includes third feed mouth
With the 4th feed mouth；The parasitic couplings unit includes first port and second port；The second feed mouth is adjacent to described the
Single port simultaneously forms the first spacing with first port；The third feed mouth forms the second spacing adjacent to the second port.
6. a kind of biradial arm WIFI antenna according to claim 4, which is characterized in that it further include substrate, the headroom
Region, the first WIFI aerial radiation arm, the 2nd WIFI aerial radiation arm and parasitic couplings unit are respectively provided on the same substrate.
7. a kind of biradial arm WIFI antenna according to claim 6, which is characterized in that the substrate includes PCB printing
Circuit board and/or FPC printed circuit board.
8. a kind of biradial arm WIFI antenna according to claim 6, which is characterized in that the first WIFI aerial radiation
The marginal position of substrate is arranged in arm and the 2nd WIFI aerial radiation arm.
9. a kind of biradial arm WIFI antenna according to claim 8, which is characterized in that the substrate is integrally in rectangle knot
Structure；The first WIFI aerial radiation arm and the 2nd WIFI aerial radiation arm are correspondingly arranged at the corner position of rectangular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288137.6A CN109346822B (en) | 2018-10-31 | 2018-10-31 | Dual-radiation-arm WIFI antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811288137.6A CN109346822B (en) | 2018-10-31 | 2018-10-31 | Dual-radiation-arm WIFI antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109346822A true CN109346822A (en) | 2019-02-15 |
| CN109346822B CN109346822B (en) | 2024-02-20 |
Family
ID=65313196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811288137.6A Active CN109346822B (en) | 2018-10-31 | 2018-10-31 | Dual-radiation-arm WIFI antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109346822B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131195A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Antenna and communication equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113131195A (en) * | 2019-12-31 | 2021-07-16 | 华为技术有限公司 | Antenna and communication equipment |
| CN113131195B (en) * | 2019-12-31 | 2022-07-12 | 华为技术有限公司 | Antenna and communication equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109346822B (en) | 2024-02-20 |
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