CN104241873B - A kind of antenna and the communication equipment for being provided with the antenna - Google Patents
A kind of antenna and the communication equipment for being provided with the antenna Download PDFInfo
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- CN104241873B CN104241873B CN201310239454.XA CN201310239454A CN104241873B CN 104241873 B CN104241873 B CN 104241873B CN 201310239454 A CN201310239454 A CN 201310239454A CN 104241873 B CN104241873 B CN 104241873B
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- frequency resonant
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- 238000004891 communication Methods 0.000 title claims abstract description 30
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- PEZNEXFPRSOYPL-UHFFFAOYSA-N (Bis(trifluoroacetoxy)iodo)benzene Chemical compound FC(F)(F)C(=O)OI(OC(=O)C(F)(F)F)C1=CC=CC=C1 PEZNEXFPRSOYPL-UHFFFAOYSA-N 0.000 claims 6
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- 230000005672 electromagnetic field Effects 0.000 description 3
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- 239000007769 metal material Substances 0.000 description 1
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Abstract
The embodiment of the present invention provides a kind of antenna and the communication equipment for being provided with the antenna, is related to the communications field, can provide better antenna performance in the case where antenna height is limited.The antenna includes the first antenna unit being connect respectively with the first feeder line and the second feeder line, for generating high-frequency resonant；The second antenna element being of coupled connections with second feeder line, for generating low-frequency resonant.The embodiment of the present invention is used to be provided with the electromagnetic transmission of the communication equipment of the antenna.
Description
Technical field
The present invention relates to the communications field more particularly to a kind of antennas and the communication equipment for being provided with the antenna.
Background technology
Antenna is a kind of converter, and the guided wave propagated on transmission line is transformed into the electricity propagated in unbounded medium by it
Magnetic wave, or the electromagnetic wave propagated in unbounded medium, it is transformed into the guided wave propagated on the transmission line.Antenna can be wireless
Emit or receive electromagnetic wave in electric equipment.The engineering systems such as radio communication, broadcast, TV, it is every to use electromagnetic waves to transmit
Information, it is required for working by antenna.
With the development of science and technology, mobile phone as it is a kind of using electromagnetic wave signal work terminal device, by the wide of market
General concern.Since the performance of traditional antenna is heavily dependent on the height of antenna setting, the thickness and antenna of mobile phone
Performance positively related relationship is presented to a certain extent, that is to say, that thicker mobile phone is easier to obtain preferable day linear
Energy.But under the market trend of fashion-orientation and portability, user is more prone to frivolous portable mobile phone, but if mobile phone
Using ultra-thin design, the height that antenna can be arranged just receives restriction, and therefore the performance of antenna can also be affected, especially
The low frequency performance of antenna is especially pronounced by being influenced, although visual effect is more preferable when user being caused to use mobile phone, uses body
Test the problem for feeling bad.
Invention content
The embodiment of the present invention provides a kind of antenna and the communication equipment for being provided with the antenna, can be limited in antenna height
In the case of, better antenna performance is provided.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
On the one hand, the embodiment of the present invention provides a kind of antenna, including：
The first antenna unit being connect respectively with the first feeder line and the second feeder line, for generating high-frequency resonant；
The second antenna element being of coupled connections with second feeder line, for generating low-frequency resonant.
On the other hand, the embodiment of the present invention provides a kind of communication equipment, including：
Above-mentioned antenna；
Mainboard, for carrying first antenna unit, the second antenna element, the first feeder line and the second feeder line.
The embodiment of the present invention provides a kind of antenna and the communication equipment for being provided with the antenna, antenna include respectively with the first feedback
The first antenna unit of line and the connection of the second feeder line, and the second antenna element for being of coupled connections with the second feeder line, wherein first day
Line unit so, is utilized respectively two feeder lines for generating high-frequency resonant, the second antenna element for generating low-frequency resonant
Two antenna element work of triggering, generate high-frequency resonant and low-frequency resonant respectively, and do not have to as the prior art, due to needing
Make antenna that can generate high-frequency resonant but also generate low-frequency resonant, thus in order to ensure generate resonance bandwidth and by setting day
The restriction of line height.Institute can be provided in the case where antenna height is limited by providing high-frequency resonant and low-frequency resonant respectively in this way
The high-frequency resonant and low-frequency resonant needed, to provide better antenna performance.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of antenna provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of the first feeder line and the second feeder line in antenna provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of first antenna unit in antenna provided in an embodiment of the present invention；
Fig. 4 is the side structure schematic view of antenna provided in an embodiment of the present invention；
Fig. 5 is the side structure schematic view for the antenna that another embodiment of the present invention provides；
Fig. 6 is the overlooking structure diagram of communication equipment provided in an embodiment of the present invention；
Fig. 7 is the overlooking structure diagram of communication equipment provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The embodiment of the present invention provides a kind of antenna 10, is applied to a kind of communication equipment using electromagnetic wave, the communication equipment
Can be mobile phone or tablet computer etc., the embodiment of the present invention is not limited thereto, as shown in Figure 1, antenna 10 includes：
The first antenna unit 103 being connect respectively with the first feeder line 101 and the second feeder line 102, first antenna unit 103 are used
In generation high-frequency resonant；
And the second antenna element 104 being of coupled connections with the second feeder line 102, the second antenna element 104 are low for generating
Frequency resonance.
Illustratively, first antenna unit 103 is PIFA (planar inverted F-shaped antenna, plane
Inverted F shaped antenna) or IFA (inverted F-shaped antenna, inverted F shaped antenna), the second antenna element is gap day
Line is usually embedded in the reserved gap of mainboard, wherein the wavelength of slot antenna can be 1/4 wavelength.
It should be noted that first antenna unit provided in an embodiment of the present invention can be PIFA antennas, or IFA
Antenna.Wherein, PIFA antennas are that have many advantages, such as miniaturization, easy of integration, good directionality from microstrip antenna differentiation, because
This application prospect is extremely wide, and positive popularization and application can be especially carried out in radio communication；IFA antennas are to merge
A kind of new concept antenna developed on the basis of PIFA antennas and monopole antennas has low section, small size, efficiently
Rate, bandwidth fully, strong antijamming capability many advantages, such as.Therefore, PIFA antennas and IFA antennas are especially suitable for various small-sized
Change, ultra-thin communication terminal.
Likewise, the second antenna element provided in an embodiment of the present invention is slot antenna, wherein slot antenna is in conductor
Crack the antenna to be formed on face, has many advantages, such as miniaturization, broadband, cheap, apply in general to microwave band radar,
In the equipment such as navigation, electronic countermeasure and communication.
It is worth noting that as shown in Fig. 2, first antenna unit 103 and the second antenna element 104 can be closed by one end
And separated the first feeder line 101 and the second feeder line 102 of the other end is fed, you can with by first antenna unit 103 and second
Antenna element 104 regards a feeder line as, which is divided into two layers, and upper layer feeder line is the first feeder line 101, and lower layer's feeder line is the second feedback
Line 102.
It should be noted that the second feeder line 102 is of coupled connections with the second antenna element 104, to the second antenna element 104 into
Row couple feed.Couple feed is the second feeder line 102 and the second antenna element for not contacting with each other, but having a certain distance
The conduction of electric flux is carried out between 104 by way of coupling.The second antenna element 104 is enabled to not conducted with electric flux
System obtains energy in the case of being in direct contact.Second feeder line 102 can be arranged above the second antenna element 104 about
At 1mm, if the second antenna element 104 is slot antenna, the second feeder line 102 can be arranged with slot antenna top at least
At 1mm, and it is not parallel with slot antenna.Such as, the second feeder line 102 be arranged at away from slot antenna 1mm and with where slot antenna
In the parallel plane of plane, the second feeder line 102 is in an angle of 90 degrees with slot antenna, alternatively, the second feeder line 102 is in big with slot antenna
In 1 degree and it is less than an angle of 90 degrees.
Further, as shown in figure 3, first antenna unit 103 includes earth point 1031 and feed point 1032 and radiator
Plane 1033.
It should be noted that first antenna unit 103 can not be connected according to the standard type provided in Fig. 3 with feeder line
It connects, since earth point 1031 and feed point 1032 are all metal materials, other forms can also be moulded by bending or other means,
The present invention is not limited.
It preferably, can be with as shown in figure 4, by the first feeder line 101 with first antenna unit 103 (in figure in order to save space
Do not mark) feed point 1032 be connected, the second feeder line 102 is connected with the earth point 1031 of first antenna unit 103.With second
The second antenna element 104 that feeder line 102 is of coupled connections can be disposed vertically with the second feeder line 102, since Fig. 4 is side view, because
This, a dot can only be seen with 102 vertically disposed second antenna element 104 of the second feeder line, but the embodiment of the present invention not with
The position relationship that second antenna element 104 and the second feeder line 102 are disposed vertically is to limit, other can generate the position of couple feed
Relationship is set within protection domain.
Further, first antenna unit 103 is PIFA or IFA, when the second antenna element 104 is slot antenna, PIFA
Or the radiator plane of IFA is arranged in parallel in the surface of the slot antenna, the geometric center of the radiator plane of PIFA or IFA
It can be aligned with the geometric center of the slot antenna.
It is worth noting that when first antenna unit 103 is PIFA, in order to enable the performance of PIFA is sent out well
It waves, the height of PIFA settings, if height of the radiator plane 1033 apart from mainboard in PIFA should be greater than or equal to 6.5mm,
The length of radiator plane 1033 is greater than or equal to 20mm, and width is greater than or equal to 10mm；And from radio frequency testing mouth to feed point
The impedance of 1032 lead is maintained at 50 ohm, and the device near PIFA should do the best possible shielding, reduces to antenna performance
Influence.
When first antenna unit 103 is IFA, the area of height and radiator plane 1033 to radiator plane 1033 does not have
There is specific requirement, the resonant frequency needed is obtained by debugging, compared with PIFA, IFA is generally more, and setting is oblique in holder
Face and side, and PIFA is generally done in chassis plane.
When second antenna element 104 is slot antenna, using the slot antenna of 1/4 wavelength, and by the gap of 1/4 wavelength day
The size that line is arranged in gap narrow side direction is larger, in the smaller gap of curvature, to make gap level off to ideal seam as far as possible
Gap.This is because when slot antenna is set in infinitely great and unlimited thin ideal conducting plane, which is to plane gap
Ideal gap.Electric field on ideal gap is vertical with the long side in gap, and amplitude falls to zero at the both ends in gap.This electric field
It is distributed just the same with the Distribution of Magnetic Field on the conductor oscillator with identical size.According to the duality of electromagnetic field it is found that ideal
The electromagnetic field structure having the same that electromagnetic field that gap is radiated is generated with complementary oscillator, only the electric field intensity of oscillator correspond to
Magnetic vector in gap, the magnetic vector of oscillator correspond to the electric field intensity in gap.Therefore.For limited conductor plane
Or the actual gap on curved surface, as long as conductor surface size ratio wavelength is much bigger, the size in especially gap narrow side direction is larger, bent
Rate is smaller, then its fundamental characteristics is just similar to ideal gap.
It is worth noting that due to present multi-frequency band mobile phone, high frequency needs to support DCS (Distributed Control
Systems, scattered control system), PCS (Personal Communications Service, person-to-person communication service) and
Multiple frequency ranges such as WCDMA (Wideband Code Division Multiple Access, wideband code division multiple access), so antenna
10 bandwidth range possibly can not cover so big high-frequency range simultaneously, alternatively, reach such high-frequency range if necessary,
It needs to first antenna unit 103, if the radiator level or the radiator area of plane of PIFA make the restriction of minimum value,
So that antenna 10 is more frivolous, the matching network that can be adjusted can also be increased before feeder line, provided by matching network
Different impedances meet the needs of expanding high frequency bandwidth.
You need to add is that impedance matching is that specific between load impedance and information source internal impedance is matched in signals transmission
Conjunction relationship increases the matching network that can be adjusted before feeder line, and the different impedances provided by matching network can expand antenna
High frequency bandwidth, improve the performance of antenna.
Illustratively, as shown in figure 5, antenna 10, further includes：
RF (Radio Frequency, the radio frequency) switch 105 being connected with feed point 1032, it is different external for selecting
Match circuit, to extend the bandwidth of 103 high-frequency resonant of first antenna unit.
Illustratively, multiple external match circuits are provided with, the different match circuit of RF switch connections can be respectively
One antenna element 103 (being not marked in figure) provides different impedances, if first antenna unit 103 is PIFA, match circuit A is carried
The impedance of confession is 51 ohm, and the impedance that match circuit B is provided is 53 ohm, and the impedance that match circuit C is provided is 49 ohm, that
, when demand high-frequency resonant maximum, RF switch selection match circuits B.For the match circuit for keeping PIFA performances good, different
The impedance of offer need to be adjusted in 50 ohms.Herein only with this for example, the resistance not provided with the match circuit provided
Anti- value or quantity are to limit.
The embodiment of the present invention provides a kind of antenna 10, and antenna 10 includes connecting respectively with the first feeder line 101 and the second feeder line 102
The first antenna unit 103 connect, and the second antenna element 104 for being of coupled connections with the second feeder line 102, wherein first antenna list
Member 103 so, is utilized respectively two feedbacks for generating high-frequency resonant, the second antenna element 104 for generating low-frequency resonant
Line triggers two 10 cell operations of antenna, generates high-frequency resonant and low-frequency resonant respectively, and does not have to as the prior art, due to
Need to make antenna 10 that can generate high-frequency resonant but also generate low-frequency resonant, thus in order to ensure generate resonance bandwidth and by
The restriction of 10 height of antenna is set.The situation that high-frequency resonant and low-frequency resonant can be height-limited in antenna 10 is provided respectively in this way
Under, required high-frequency resonant and low-frequency resonant are provided, to provide better antenna 10 performance.
The communication equipment 1 of the antenna 10 provided in an embodiment of the present invention provided with above-described embodiment, as shown in fig. 6, packet
It includes：
Antenna 10 and mainboard 11, wherein antenna 10 includes the connect respectively with the first feeder line 101 and the second feeder line 102
One antenna element 103, and, the second antenna element 104 being of coupled connections with the second feeder line 102, first antenna unit 103 is used for
High-frequency resonant is generated, the second antenna element 104 is for generating low-frequency resonant.Mainboard 11 is for carrying first antenna unit 103, the
Two antenna elements 10 and the first feeder line 101 and the second feeder line 102.
Illustratively, first antenna unit 103 is PIFA or IFA, and the second antenna element is slot antenna, general embedding
Enter in the reserved gap of mainboard, wherein the wavelength of slot antenna can be the slot antenna of 1/4 wavelength.
It should be noted that first antenna unit provided in an embodiment of the present invention can be PIFA antennas, or IFA
Antenna.Wherein, PIFA antennas are that have many advantages, such as miniaturization, easy of integration, good directionality from microstrip antenna differentiation, because
This application prospect is extremely wide, and positive popularization and application can be especially carried out in radio communication；IFA antennas are to merge
A kind of new concept antenna developed on the basis of PIFA antennas and monopole antennas has low section, small size, efficiently
Rate, bandwidth fully, strong antijamming capability many advantages, such as.Therefore, PIFA antennas and IFA antennas are especially suitable for various small-sized
Change, ultra-thin communication terminal.
Likewise, the second antenna element provided in an embodiment of the present invention is slot antenna, wherein slot antenna is in conductor
Crack the antenna to be formed on face, has many advantages, such as miniaturization, broadband, cheap, apply in general to microwave band radar,
In the equipment such as navigation, electronic countermeasure and communication.
It should be noted that in communication equipment 1, if first antenna unit 103 is PIFA, the weldering of the feed point of PIFA
Disk should be not less than 2mm*3mm, and PIFA can be placed in antenna area, wherein antenna area can suitably open a little positioning
Hole.
Further, in order not to antenna reception and emitting performance generate large effect, it is interior in communication equipment 1
The larger metal object such as motor cannot be had by setting in the surrounding 7mm of first antenna unit 103 and the second antenna element 104.First day
The conductive materials such as conductive paint are not sprayed on structural member or structural plane near line unit 103 and the second antenna element 104.First
If antenna element 103 and the second antenna element 104 are arranged in antenna for mobile phone area, antenna for mobile phone area is nearby without plating
Technique, and avoid design Metal decorative part etc..Between first antenna unit 103 and the second antenna element 104 and battery of mobile phone
Away from should be in 5mm or more.
It should be noted that the position as first antenna unit 103 is arranged in Fig. 6 is needed close to corner, such as first antenna
Unit 103 is PIFA, when the second antenna element 104 is slot antenna, by PIFA settings and slot antenna surface, the spoke of PIFA
Beam plane at a distance from mainboard be greater than or equal to 6.5mm, and by PIFA and slot antenna setting apart from the sides mainboard AD about
At the about 20mm of the side 10mm, AB, alternatively, apart from the sides mainboard AB about 10mm, at the about 20mm of the sides AD, only said herein with shown position distance
Bright, PIFA and slot antenna can also be positioned close to the corner of B, C or D, distance can also according to the big minor mode of mainboard, and
It is fixed to be not limited.
Further, as shown in fig. 7, communication equipment 1, further includes：
At least one match circuit 12 is respectively used to provide different resistances to first antenna unit 103 by RF switches 105
It is anti-, to extend the bandwidth of 103 high-frequency resonant of first antenna unit.
Illustratively, first antenna unit 103 is IFA, and the impedance that first match circuit 121 provides is 51 ohm, the
The impedance that two match circuits 122 provide is 45 ohm, and the impedance that third match circuit 123 provides is 60 ohm, then, it is high
When the impedance of frequency resonance demand is about 51 ohm, RF switches 105 select match circuit 121, and the impedance of high-frequency resonant demand is about
At 45 ohm, RF switches 105 select match circuit 122, and when the impedance of high-frequency resonant demand is about 60 ohm, RF switches 105 select
Select match circuit 123.Herein only with this for example, the impedance value or quantity that are not provided with the match circuit 12 provided are limited
It is fixed.
It should be noted that the construction of first antenna unit 103 is said in the above-described embodiments in communication equipment 1
Bright, details are not described herein again.
The embodiment of the present invention provides a kind of communication equipment 1, and communication equipment 1 includes antenna 10 and mainboard 11, wherein antenna 10
Including the first antenna unit 103 being connect respectively with the first feeder line 101 and the second feeder line 102, and with 102 company of coupling of the second feeder line
The second antenna element 104 connect, wherein for generating high-frequency resonant, the second antenna element 104 is used for first antenna unit 103
Generate low-frequency resonant, so, be utilized respectively two feeder lines and trigger two antenna elements work, generate respectively high-frequency resonant and
Low-frequency resonant, and without as the prior art, due to needing to make, antenna 10 can generate high-frequency resonant but also to generate low frequency humorous
It shakes, therefore is restricted by setting 10 height of antenna to ensure the bandwidth of generation resonance.High-frequency resonant is provided respectively in this way
Required high-frequency resonant and low-frequency resonant can be provided, in the case where antenna 10 is height-limited to provide with low-frequency resonant
10 performance of better antenna.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (7)
1. a kind of antenna, which is characterized in that including：
The first antenna unit being connect respectively with the first feeder line and the second feeder line, for generating high-frequency resonant, the first antenna
Unit is fed by first feeder line and second feeder line；
The second antenna element being of coupled connections with second feeder line, for generating low-frequency resonant, the second feeder line setting exists
In the plane parallel with plane where second antenna element, second antenna element carries out coupling by second feeder line
Close feed；
The first antenna unit includes earth point and feed point；First feeder line is connected with the feed point of the first antenna unit
It connects, second feeder line is connected with the earth point of the first antenna unit；
The first antenna unit is planar inverted F-shape antenna PIFA or inverted F shaped antenna IFA；Second antenna element is seam
Gap antenna.
2. antenna according to claim 1, which is characterized in that further include：
The radio frequency switch being connected with the feed point, for selecting different external match circuits, to extend described first day
The bandwidth of line unit high-frequency resonant.
3. antenna according to claim 1, which is characterized in that
The radiator plane of the PIFA or described IFA is arranged in parallel in the surface of the slot antenna.
4. antenna according to claim 1 or 3, which is characterized in that including：
If the first antenna unit is the PIFA, the radiator plane length of the PIFA is greater than or equal to 20mm, wide
Degree is greater than or equal to 10mm.
5. a kind of communication equipment, which is characterized in that including：
Claims 1-4 any one of them antenna；
Mainboard, for carrying first antenna unit, the second antenna element, the first feeder line and the second feeder line.
6. communication equipment according to claim 5, which is characterized in that
If the first antenna unit is PIFA, the radiator plane of the PIFA is greater than or equal at a distance from the mainboard
6.5mm。
7. communication equipment according to claim 5 or 6, which is characterized in that further include：
At least one match circuit, is respectively used to switch to the first antenna unit by radio frequency and provides different impedances,
To extend the bandwidth of the first antenna unit high-frequency resonant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310239454.XA CN104241873B (en) | 2013-06-17 | A kind of antenna and the communication equipment for being provided with the antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310239454.XA CN104241873B (en) | 2013-06-17 | A kind of antenna and the communication equipment for being provided with the antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104241873A CN104241873A (en) | 2014-12-24 |
| CN104241873B true CN104241873B (en) | 2018-08-31 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1691415A (en) * | 2004-04-29 | 2005-11-02 | 美国莫列斯股份有限公司 | Low side height antenna |
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1691415A (en) * | 2004-04-29 | 2005-11-02 | 美国莫列斯股份有限公司 | Low side height antenna |
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