CN109301466A - Inverse-F antenna, matching network and bluetooth headset - Google Patents
Inverse-F antenna, matching network and bluetooth headset Download PDFInfo
- Publication number
- CN109301466A CN109301466A CN201811167214.2A CN201811167214A CN109301466A CN 109301466 A CN109301466 A CN 109301466A CN 201811167214 A CN201811167214 A CN 201811167214A CN 109301466 A CN109301466 A CN 109301466A
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- horizontal line
- inverse
- medium substrate
- line body
- ordinate
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- 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
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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- 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
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- Details Of Aerials (AREA)
Abstract
The present invention relates to a kind of inverse-F antennas.Inverse-F antenna includes medium substrate, wire body, current feed department and grounding parts, and wire body is set on medium substrate, and wire body includes the first horizontal line body, N number of second horizontal line body and N+1 ordinate body；First horizontal line body includes opposite the first connecting pin and second connection end, first connecting pin is connect with grounding parts, second connection end is connect with one end of the 1st ordinate body, and current feed department is connect with the first horizontal line body, and is set between the first connecting pin and second connection end of the first horizontal line body；N number of second horizontal line body joins end to end with N+1 ordinate body, and the serpentine-like arrangement in direction from second connection end to the first connecting pin of the first horizontal line body；N is more than or equal to 1.Inverse-F antenna provided by the invention is also able to maintain superior performance while capable of installing in smaller space.
Description
Technical field
The present invention relates to hardware communication technical fields, more particularly to a kind of inverse-F antenna, matching network and bluetooth headset.
Background technique
Currently, the application of antenna is also more and more extensive with the development of modern communications technology.Wearable movement in the market
Equipment, such as bluetooth headset are increasingly partial to micromation, miniaturization and intelligent development, therefore, day are given on hardware configuration
The reserved space of line is minimum.
And it is based on cost consideration, the use of built-in antenna in the product is more frequent, and performance is often limited to product
The interference of shell, material and surrounding enviroment.
Therefore, it designs and a adapts to that installation space is small and the built-in antenna of superior performance becomes the market demand.
Summary of the invention
Based on this, it is necessary to for the problem that existing built-in antenna installation space is limited and performance is bad, provide a kind of energy
Adapt to that installation space is small and inverse-F antenna, matching network and the bluetooth headset of superior performance.
A kind of inverse-F antenna, including medium substrate, wire body, current feed department and grounding parts, the wire body are set to the medium base
On plate, the wire body includes the first horizontal line body and transverse and longitudinal wire body group；The first horizontal line body is along the transverse direction side of the medium substrate
To extension, the first horizontal line body includes opposite the first connecting pin and second connection end, and first connecting pin connects with described
The connection of ground portion, the second connection end are connect with one end of the transverse and longitudinal wire body group, one end of the current feed department and described first
The connection of horizontal line body, and be set between first connecting pin of the first horizontal line body and the second connection end；The cross
Ordinate body group include along the medium substrate transverse direction extend N number of second horizontal line body and along the lengthwise of the medium substrate
The N+1 ordinate body that direction extends, a ordinate bodies of N number of second horizontal line body and N+1 join end to end, and from described second
Connecting pin is to the serpentine-like arrangement in the first connecting pin；Wherein, N is more than or equal to 1.
Above-mentioned inverse-F antenna, by the way that the first horizontal line body and end to end and from the first horizontal line is arranged on medium substrate
The N number of second horizontal line body and N+1 ordinate body of the serpentine-like arrangement in the direction of the second connection end of body to the first connecting pin.This line
Body cabling mode is closer, and by adjusting line width, line spacing and terrain clearance, can realize day on the small medium substrate of area
The preferable broadband of line, efficiency and resonance characteristic.In this way, while inverse-F antenna of the invention is installed in smaller space,
Also it is able to maintain superior performance.
In one of the embodiments, the size of transverse direction of the first horizontal line body along the medium substrate be greater than or
Equal to N number of second horizontal line body along the sum of the size of transverse direction of the medium substrate.
The first horizontal line body is along the longitudinally of the medium substrate close to the medium in one of the embodiments,
The side of substrate is arranged, and first connecting pin of the first horizontal line body and the second connection end are along the medium substrate
Transverse direction be arranged respectively close to the opposite two sides of the medium substrate.
The medium substrate is along its longitudinally close to the one side of the first horizontal line body in one of the embodiments,
And one side of the medium substrate along its transverse direction close to the 1st ordinate body is equipped with ground wire.
The length range of the medium substrate is 10.6mm~11.6mm, the width of pcb board in one of the embodiments,
Range is 2.9mm~3.5mm.
In one of the embodiments, the spacing range between the current feed department and the grounding parts be 0.4mm~
2.2mm。
The inverse-F antenna further includes cutting device in one of the embodiments, it is described cut out device and be set to given an account of
Matter substrate is backwards to the side of the wire body, the length for cutting device and being used to cut out the N+1 ordinate body.
The junction of the first horizontal line body and the 1st ordinate body is arc-shaped in one of the embodiments, each institute
The junction for stating the second horizontal line body and each ordinate body is arc-shaped.
A kind of matching network, including matching network material, the current feed department of the matching network material and above-mentioned inverse-F antenna
Connection, for being tuned to the inverse-F antenna.
A kind of bluetooth headset, including above-mentioned inverse-F antenna；It or include such as above-mentioned inverse-F antenna and such as claim 9 institute
The matching network stated.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention inverse-F antenna；
Fig. 2 is the structural schematic diagram of the inverse-F antenna of another embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the inverse-F antenna of further embodiment of this invention.
Specific embodiment
To facilitate the understanding of the present invention, a more comprehensive description of the invention is given in the following sections with reference to the relevant attached drawings.In attached drawing
Give preferred embodiment of the invention.But the invention can be realized in many different forms, however it is not limited to herein
Described embodiment.On the contrary, purpose of providing these embodiments is keeps the understanding to the disclosure more saturating
It is thorough comprehensive.
Unless otherwise defined, all technical and scientific terms used herein and belong to technical field of the invention
The normally understood meaning of technical staff is identical.Term as used herein in the specification of the present invention is intended merely to description tool
The purpose of the embodiment of body, it is not intended that in the limitation present invention.Term " and or " used herein includes one or more phases
Any and all combinations of the listed item of pass.
When describing positional relationship, unless otherwise defined, when an element is regarded as at another element "upper", energy
Intermediary element directly in other elements or also may be present.It can also understand, when element is regarded as in two element " they
Between " when, it can be the only one between two elements, or one or more intermediary elements also may be present.
Using " comprising " described herein, " having " and "comprising", unless having used specific restriction
Term, such as " only ", " by ... form " etc., it otherwise can also add another component.Unless refer on the contrary, otherwise singular shape
The term of formula may include plural form, and can not be interpreted as its quantity is one.
It will be appreciated that though term " first ", " second " etc. can be used herein to describe various elements, but these yuan
Part should not be limited by these terms.These terms are only used to distinguish an element and another element.For example, not taking off
In the case where the scope of the present invention, first element can be referred to as second element, and similarly, and second element can be claimed
For first element.
It is to be further understood that, although not being expressly recited, element is construed to include error model when explaining element
It encloses, which should be in the acceptable deviation range of particular value identified by the skilled person.For example, " big
About ", it " approximation " or " substantially " may mean that in one or more standard deviations, be not limited thereto.
In addition, the ratio that attached drawing is not 1:1 is drawn, and the relative size of each element is in the accompanying drawings only illustratively to draw
System, and not necessarily drawn according to actual proportions.
As shown in Figure 1, the inverse-F antenna 100 of first embodiment of the invention, including medium substrate 10, wire body, current feed department 30 and
Grounding parts 40.
Wire body is set on medium substrate 10, and wire body includes the first horizontal line body 21, N number of second horizontal line body 22 and N+1 vertical
Wire body 23, the first horizontal line body 21 and the second horizontal line body 22 extend along the transverse direction of medium substrate 10, and ordinate body 23 is along medium
The longitudinally of substrate 10 extends.
First horizontal line body 21 includes opposite the first connecting pin and second connection end, and the first connecting pin and grounding parts 40 connect
It connects, second connection end is connect with one end of the 1st ordinate body 23, and current feed department 30 is connect with the first horizontal line body 21, and is set to
Between the first connecting pin and second connection end of one horizontal line body 21.
N number of second horizontal line body 22 joins end to end with N+1 ordinate body 23, and from the second connection end of the first horizontal line body 21 to
The serpentine-like arrangement in the direction of first connecting pin, wherein N is more than or equal to 1.
It should be pointed out that those skilled in the art is it is to be understood that between the first horizontal line body 21 and the second horizontal line body 22
Between should keep a fixed spacing, to guarantee the basic performance of inverse-F antenna.
By the way that the first horizontal line body 21 and end to end and from the first horizontal line body 21 second is arranged on medium substrate 10
The N number of second horizontal line body 22 and N+1 ordinate body 23 of the serpentine-like arrangement in the direction of connecting pin to the first connecting pin.This wire body is walked
Line mode is closer, and by adjusting line width, line spacing and terrain clearance, can be realized on the small medium substrate of area antenna compared with
Good broadband, efficiency and resonance characteristic.In this way, while inverse-F antenna 100 of the invention is installed in smaller space,
Also it is able to maintain superior performance.
In an embodiment of the present invention, medium substrate 10 is pcb board, and wire body is printed on pcb board.
In an embodiment of the present invention, the resonance frequency of inverse-F antenna 100 is 2.4GHZ, as benchmark, hair of the invention
Bright people debugs the line width, line spacing and terrain clearance of inverse-F antenna 100, obtains parameter in detailed below, may make this
The inverse-F antenna of embodiment has preferable broadband, efficiency and resonance characteristic.
In the present embodiment, the length of medium substrate 10 can be selected in the range of 10.6mm~11.6mm, width
It can be selected in the range of 2.9mm~3.5mm.Preferably, the length of medium substrate 10 is 11mm, the width of medium substrate 10
Degree is 3.0mm.
Further, the wire body of inverse-F antenna 100 includes 3 the second horizontal line body 22 and 4 ordinate bodies, and the line footpath of wire body can
It is selected in the range of 0.3mm~0.5mm.Preferably, line footpath 0.4mm.
Specifically, 3 the second horizontal line bodies 22 are respectively the 1st the second horizontal line body 221, the 2nd the second horizontal line body 222 and the
3 the second horizontal line bodies, 223,4 ordinate bodies 23 are respectively individual ordinate the 232, the 3rd ordinate body of body of the 1st ordinate the 231, the 2nd
233, the 4th ordinate body 234.
In an embodiment of the present invention, the spacing between current feed department 30 and grounding parts 40 can between 0.4mm~2.2mm into
Row adjustment, it is preferred that the spacing may be configured as 0.4mm.Spacing between adjustable current feed department 30 and grounding parts 40 with realize compared with
The tuning of good inverse-F antenna 100.
In an embodiment of the present invention, the first horizontal line body 21 is along the longitudinally of medium substrate 10 close to medium substrate 10
Side setting, and the first connecting pin of the first horizontal line body 21 and second connection end along medium substrate 10 transverse direction respectively close to
The opposite two sides setting of medium substrate 10.In this way, may make the length of the length of the first horizontal line body 21 as far as possible, wire body is increased
Length, and make the radiation effect of antenna more preferable.
Specifically, the first horizontal line body 21 is set as along the spacing of the longitudinally and medium substrate 10 of medium substrate 10
0.4mm。
The length of first horizontal line body 21 is set as 2.2mm.
First connecting pin of the first horizontal line body 21 and the edge of medium substrate 10 are between the transverse direction of medium substrate 10
Away from can be selected in the range of 0.1mm~0.3mm, it is preferred that be set as 0.2mm.
The second connection end of first horizontal line body 21 and the edge of medium substrate 10 are between the transverse direction of medium substrate 10
Away from 0.3mm is set as (edge of the 1st ordinate body 231 and medium substrate 10 is also believed to along the transverse direction side of medium substrate 10
To spacing be set as 0.3mm).
In an embodiment of the present invention, one side and Jie of the medium substrate 10 along its longitudinally close to the first horizontal line body 21
One side of the matter substrate 10 along its transverse direction close to the 1st ordinate body 231 is equipped with ground wire.
In an embodiment of the present invention, the 1st the second horizontal line body 221 also the longitudinally along medium substrate 10 close to medium
The side setting (side far from the first horizontal line body 21) of substrate 10.In this way, the 1st ordinate body 231 can be elongated as much as possible
Length guarantees the radiation effect of inverse-F antenna.
Specifically, the length of the 1st ordinate body 231 is 10.4mm, the 1st the second horizontal line body 221 and medium substrate 10
Edge is set as 0.2mm along the spacing of the longitudinally of medium substrate 10.
In embodiments of the present invention, when N is odd number, than N+2 the second horizontal line bodies of n-th the second horizontal line body are along medium
Edge of the longitudinally of substrate 10 closer to medium substrate 1.
Specific in the present embodiment, spacing between the 1st the second horizontal line body 221 and the 3rd the second horizontal line body 223 can be
It is selected within the scope of 0.9mm~1.2mm, it is preferred that the spacing is 1mm.
In the present embodiment, the length of the 2nd ordinate body 232 can be selected within the scope of 9.6mm~10.6mm, and the
The length of 3 ordinate bodies 233 can be selected within the scope of 8.6mm~9.6mm or the first horizontal line body 21 and the 2nd second
Horizontal line body 222 can be selected along the spacing of the longitudinally of medium substrate 10 within the scope of 0.1mm~0.3mm.Preferably,
The length of 2 ordinate bodies 232 is set as 10mm, and the length of the 3rd ordinate body 233 is set as 9mm, the first horizontal line body 21 and the 2nd
The spacing of longitudinally of a second horizontal line body 222 along medium substrate 10 is set as 0.2mm.
Spacing between each ordinate body 23 can be selected within the scope of 0.1mm~0.3mm, it is preferred that the spacing can be set
It is set to 0.2mm.
In the present embodiment, the first horizontal line body 21 is equal to N number of second horizontal line along the size of the transverse direction of medium substrate 10
The size of transverse direction the sum of of the body 22 along medium substrate 10.That is, the 4th ordinate body 234 is along the vertical of medium substrate 10
Length direction is aligned with the first connecting pin of the first horizontal line body 21.In this way, the space of medium substrate 10 can be made full use of, big face is realized
Product cabling, guarantees radiation effect.
In the present embodiment, the 4th ordinate body 234 is along the longitudinally of medium substrate 10 and the spacing of the first horizontal line body 21
It can be selected within the scope of 0.2mm~10.0mm, it is preferred that the spacing is 3.88.
In an embodiment of the present invention, inverse-F antenna 100 further includes cutting device, which is set to medium substrate
10, backwards to the side of wire body, cut the length that device is used to cut out the N+1 ordinate body.In this way, when external equipment has an impact this
It when the resonance performance of the inverse-F antenna 100 of invention, such as is influenced by enclosure material or shell mechanism, or there are other metal objects
(medium substrate 10 is backwards to the side of wire body setting battery etc.), can pass through length (the i.e. wire body end of the N+1 ordinate body of cutting
Length) so that inverse-F antenna 100 has preferable resonance characteristic.
In some embodiments, the junction of the first horizontal line body 21 and the 1st ordinate body 231 is arc-shaped, each second horizontal line
Body 22 and the junction of each ordinate body 23 are arc-shaped.In this way, when the medium substrate 10 in inverse-F antenna 100 of the invention is to adapt to
External installation space, and need to have when on the corner making circular arc processing, at this point, wire body can also change therewith to adjust.At other
In embodiment, which can also be 4 degree of chamferings or other shapes, and this is not restricted.
As shown in Fig. 2, being the inverse-F antenna 200 of second embodiment of the invention.
The inverse-F antenna 200 of the embodiment and the inverse-F antenna 200 in first embodiment have similar structure, difference
Place, will be explained in detail.For ease of description, the label of identical element does not change.
In the present embodiment, when the timing of the width of medium substrate 10 one, due to the line width of ordinate body 23 and each ordinate body it
Between pitch requirements, cause the N+1 ordinate body that can not be aligned along medium substrate 10 with the first connecting pin of the first horizontal line body 21
The case where, settable N number of second horizontal line body 22 is along the sum of size of transverse direction of medium substrate 10 less than the first horizontal line body 21
Along the size of the transverse direction of medium substrate 10.
Specifically, the width of medium substrate 10 is set as 3.3mm, and the length of the first horizontal line body 21 is set as 2.8mm, this reality
It applies the other sizes data in example and can refer to first embodiment and be configured, details are not described herein.
As shown in figure 3, the inverse-F antenna 300 of third embodiment of the invention.
The inverse-F antenna 300 of the embodiment and the inverse-F antenna 100 in first embodiment have similar structure, difference
Place, will be explained in detail.For ease of description, the label of identical element does not change.
In the present embodiment, wire body further includes the 4th the second horizontal line body 224 and the 5th ordinate body 235.
Specifically, the width of medium substrate 10 is set as 3.3mm, and the length of the first horizontal line body 21 is set as 2.8mm.
In the present embodiment, the transverse direction of the 2nd the second horizontal line body 222 and the 4th the second horizontal line body 224 along medium substrate 10
Direction alignment, the 5th ordinate body 235 are aligned along the longitudinally of medium substrate 10 with the first connecting pin of the first horizontal line body 21.
Other sizes data in the present embodiment can refer to first embodiment and be configured, and details are not described herein.
Based on above-mentioned inverse-F antenna (100,200,300), the present invention also provides a kind of matching networks, including matching network
Material, matching network material are connect with the current feed department 30 of above-mentioned inverse-F antenna (100,200,300), for inverse-F antenna
(100,200,300) are tuned.
Specifically, matching network material can be inductance or capacitor, and this is not restricted.
Based on above-mentioned inverse-F antenna (100,200,300) and matching network, the present invention also provides a kind of bluetooth headset, packets
It includes above-mentioned inverse-F antenna (100,200,300), or including above-mentioned inverse-F antenna (100,200,300) and matching network.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The embodiments described above only express several embodiments of the present invention, and the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Range.Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.
Claims (10)
1. a kind of inverse-F antenna, which is characterized in that including medium substrate, wire body, current feed department and grounding parts, the wire body is set to
On the medium substrate, the wire body includes the first horizontal line body, N number of second horizontal line body and N+1 ordinate body；
The first horizontal line body and the second horizontal line body extend along the transverse direction of the medium substrate, ordinate body edge
The longitudinally of the medium substrate extends；
The first horizontal line body includes opposite the first connecting pin and second connection end, first connecting pin and the grounding parts
Connection, the second connection end are connect with one end of the 1st ordinate body, one end of the current feed department and first horizontal line
Body connection, and be set between first connecting pin of the first horizontal line body and the second connection end；
N number of second horizontal line body joins end to end with the N+1 ordinate bodies, and connects from described the second of the first horizontal line body
Connect the serpentine-like arrangement in direction held to first connecting pin；
Wherein, N is more than or equal to 1.
2. inverse-F antenna according to claim 1, which is characterized in that cross of the first horizontal line body along the medium substrate
It is greater than or equal to N number of second horizontal line body along the sum of the size of transverse direction of the medium substrate to the size in direction.
3. inverse-F antenna according to claim 1, which is characterized in that the first horizontal line body is along the vertical of the medium substrate
Length direction is arranged close to the side of the medium substrate, and first connecting pin of the first horizontal line body and described second connects
The transverse direction that end is connect along the medium substrate is arranged respectively close to the opposite two sides of the medium substrate.
4. inverse-F antenna according to claim 3, which is characterized in that the medium substrate is along its longitudinally close to described
One side of the one side and the medium substrate of first horizontal line body along its transverse direction close to the 1st ordinate body is laid with
There is ground wire.
5. inverse-F antenna according to any one of claims 1 to 4, which is characterized in that the length range of the medium substrate is
10.6mm~11.6mm, the width range of pcb board are 2.9mm~3.5mm.
6. inverse-F antenna according to any one of claims 1 to 4, which is characterized in that the current feed department and the grounding parts it
Between spacing range be 0.4mm~2.2mm.
7. inverse-F antenna according to any one of claims 1 to 4, which is characterized in that the inverse-F antenna further includes cropping tool
Part, the device of cutting out are set to the medium substrate backwards to the side of the wire body, and the cutting device is described for cutting out
The length of the N+1 ordinate body.
8. inverse-F antenna according to any one of claims 1 to 4, which is characterized in that the first horizontal line body and the described 1st
The junction of a ordinate body is arc-shaped, and the junction of each second horizontal line body and each ordinate body is arc-shaped.
9. a kind of matching network, which is characterized in that including matching network material, the matching network material and claim 1~8
The current feed department of described in any item inverse-F antennas connects, for being tuned to the inverse-F antenna.
10. a kind of bluetooth headset, including inverse-F antenna as described in any one of claims 1 to 8；Or
Including inverse-F antenna as described in any one of claims 1 to 8 and matching network as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811167214.2A CN109301466A (en) | 2018-10-08 | 2018-10-08 | Inverse-F antenna, matching network and bluetooth headset |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811167214.2A CN109301466A (en) | 2018-10-08 | 2018-10-08 | Inverse-F antenna, matching network and bluetooth headset |
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| CN201655958U (en) * | 2010-03-03 | 2010-11-24 | 神讯电脑(昆山)有限公司 | Double-frequency inverted-F type antenna |
| CN102110887A (en) * | 2010-04-01 | 2011-06-29 | 苹果公司 | Inverted-F antenna and handset electronic device |
| CN201868575U (en) * | 2010-09-08 | 2011-06-15 | 惠州Tcl移动通信有限公司 | Bluetooth antenna |
| CN102884679A (en) * | 2010-12-24 | 2013-01-16 | 松下电器产业株式会社 | Antenna device |
| CN105529525A (en) * | 2014-10-21 | 2016-04-27 | 中兴通讯股份有限公司 | Antenna structure |
| CN106935968A (en) * | 2017-02-28 | 2017-07-07 | 杭州古北电子科技有限公司 | Radio frequency PCB antenna system based on Wifi modules |
| CN107394383A (en) * | 2017-08-09 | 2017-11-24 | 歌尔科技有限公司 | Groove gap planar inverted L antennas and blue-teeth communication equipment |
| CN107394384A (en) * | 2017-08-09 | 2017-11-24 | 歌尔科技有限公司 | Print groove gap inverse-F antenna and blue-teeth communication equipment |
| CN108539380A (en) * | 2018-05-02 | 2018-09-14 | 珠海市杰理科技股份有限公司 | Radio-frequency antenna, matching network, wireless communication device and bluetooth headset |
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