CN107240776A - Double frequency slit antenna and its tuning methods - Google Patents
Double frequency slit antenna and its tuning methods Download PDFInfo
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- CN107240776A CN107240776A CN201710295144.8A CN201710295144A CN107240776A CN 107240776 A CN107240776 A CN 107240776A CN 201710295144 A CN201710295144 A CN 201710295144A CN 107240776 A CN107240776 A CN 107240776A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/48—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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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/10—Resonant antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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Abstract
The present invention disclose a kind of double frequency slit antenna and its tuning methods, and the double frequency slit antenna is etched in the upper surface of medium substrate, and the upper surface of medium substrate is laid with metal level as metallic RF.Double frequency slit antenna includes folding gap resonator and co-planar waveguide step electric impedance resonator, and folding gap resonator is made up of first line of rabbet joint, two second line of rabbet joint, two third slot lines, two the 4th line of rabbet joint and two the 5th line of rabbet joint.Co-planar waveguide step electric impedance resonator is connected by metal wire with metallic RF, and is fed by an end for the coplanar waveguide feeder line of T-shaped structure to multimode gap resonator.The present invention, by coplanar wave guide feedback, realizes the dual frequency characteristics of antenna using a multimode gap resonator；In addition, the tuning methods of double frequency slit antenna are by adjusting the design size parameter of antenna come each resonant frequency of tuned antenna, so as to the center operating frequency and bandwidth characteristic of effectively regulation antenna.
Description
Technical field
The present invention relates to frequency microwave communication technical field, more particularly to a kind of double frequency slit antenna and its tuning methods.
Background technology
In current multifrequency antenna design, designer comes often by the different radiant body of multiple resonant frequencies is combined
Multiband is realized, therefore antenna size is often larger.Therefore, it is necessary to a kind of less dual-band antenna of design size is proposed, profit
With the double-frequency resonance body with two resonant frequencies, and two resonant frequencies can be adjusted effectively, so that dual-band antenna
Center operating frequency and bandwidth be respectively provided with very high regulating power.
The content of the invention
The main object of the present invention provides a kind of double frequency slit antenna and its tuning methods, it is intended to solve existing multifrequency antenna
The larger technical problem of antenna size is caused by combining the different radiant body of multiple resonant frequencies to realize multiband.
To achieve the above object, the invention provides a kind of double frequency slit antenna, etch in the upper surface of medium substrate, should
The upper surface of medium substrate is laid with metal level as metallic RF, and the double frequency slit antenna includes multimode gap resonance
Device, the multimode gap resonator is constituted by folding gap resonator and co-planar waveguide step electric impedance resonator, the folding gap
Resonator is by first line of rabbet joint, two second line of rabbet joint, two third slot lines, two the 4th line of rabbet joint and two the 5th line of rabbet joint groups
Into the co-planar waveguide step electric impedance resonator is connected by metal wire with metallic RF, and is T-shaped by an end
The coplanar waveguide feeder line of structure is fed to multimode gap resonator.
It is preferred that, the co-planar waveguide step electric impedance resonator is that the part surrounded by folding gap resonator is situated between
Matter substrate, and be S by a width1Metal wire be connected with metallic RF.
It is preferred that, one end of two second line of rabbet joint is each vertically connected on the two ends of first line of rabbet joint, and to form right angle U-shaped
Structure, wherein one end of third slot line and one end of wherein one the 5th line of rabbet joint are each vertically connected on wherein one the 4th
The two ends of the line of rabbet joint form an angle of collimation U-shape structure, wherein one end and wherein another 5th line of rabbet joint of another third slot line
One end be each vertically connected on the two ends of wherein another 4th line of rabbet joint and form an angle of collimation U-shape structure, two the 3rd grooves
The other end of line is vertically connected on the other end of two second line of rabbet joint.
It is preferred that, two the 4th line of rabbet joint of folding gap resonator are located between two second line of rabbet joint and mutually flat
OK, two the 4th line of rabbet joint are close to each other and separated by metal wire, first line of rabbet joint, third slot line and the 5th line of rabbet joint be parallel to each other and
Separate to form the co-planar waveguide step electric impedance resonator by certain media substrate.
It is preferred that, direction offers the 6th groove to the medium position of first line of rabbet joint of folding gap resonator downward vertically
Line, one end of the 6th line of rabbet joint is communicated to the medium position of first line of rabbet joint, and the other end of the 6th line of rabbet joint is extended downwardly and is connected to
One long edge of medium substrate.
It is preferred that, the coplanar waveguide feeder line includes the first feeder line and the second feeder line, and one end of second feeder line is vertical
The medium position formation T-shaped structure of the first feeder line is connected to, first feeder line is built in the first groove of the gap resonator
In line and make between the first feeder line and the first line of rabbet joint lower frame at intervals of d1Position at, second feeder line is built in the 6th
The line of rabbet joint and hollow out gap for making the second feeder line both sides is d0Central position, make the coplanar waveguide feeder line of T-shaped structure to many
Die slot gap resonator is fed.
It is preferred that, the inner side spacing between two the 4th line of rabbet joint is S0, the outside spacing between two the 4th line of rabbet joint
It is S equal to the width of metal wire1；The lateral length of the coplanar waveguide feeder line of the T-shaped structure is L6。
The present invention also provides a kind of tuning methods of double frequency slit antenna, the tuning methods bag of the double frequency slit antenna
Include：
By the lateral length L for the coplanar waveguide feeder line for changing T-shaped structure6Design parameter adjust coplanar waveguide feeder line
The resonant frequency f of generationTR, work as L6During increase, fTRFrequency reduces；
By changing the inner side interval S between two the 4th line of rabbet joint for folding gap resonator0Design parameter adjust
The fundamental resonance frequency and one class resonant frequency of co-planar waveguide step electric impedance resonator, work as S0During increase, the resistance of co-planar waveguide ladder
The fundamental resonance frequency of antiresonance device and two one class resonant frequency fCSIR0、fCSIR1Increase, and fCSIR1The speed of change is big
In fCSIR0；
By changing the outside interval S between two the 4th line of rabbet joint for folding gap resonator1Design parameter adjust
Fold the second order resonant frequency f of gap resonatorFSLR, work as S1During increase, second order resonant frequency fFSLRIncrease.
Compared to prior art, not only design size is small for double frequency slit antenna of the present invention, processing is simple with low cost,
And the dual frequency characteristics of antenna are realized by coplanar wave guide feedback using a multimode gap resonator.The double frequency gap day
The working frequency range of line includes four resonant frequencies, and the design size parameters different by adjusting are come each resonance frequency of tuned antenna
Rate, can effectively adjust the center operating frequency and bandwidth characteristic of antenna.
Brief description of the drawings
Fig. 1 is the overall structure and scale diagrams of double frequency slit antenna of the present invention；
Fig. 2 is the structural representation of the multimode gap resonator in double frequency slit antenna of the present invention；
Fig. 3 is the structural representation that multimode gap resonator offers the line of rabbet joint；
Fig. 4 is the structural representation of the coplanar waveguide feeder line in double frequency slit antenna of the present invention；
Fig. 5 is the reflectance factor schematic diagram of double frequency slit antenna of the present invention；
Fig. 6 is the lateral length L of the T-shaped structure of coplanar waveguide feeder line end6Influence schematic diagram to antenna reflection coefficient；
Fig. 7 is the inner side interval S between two the 4th line of rabbet joint for folding gap resonator0Influence to antenna reflection coefficient
Schematic diagram；
Fig. 8 be fold gap resonator two the 4th line of rabbet joint between outside between S1Influence to antenna reflection coefficient is shown
It is intended to.
The object of the invention is realized, functional characteristics and advantage will will in the lump join in embodiment part in conjunction with the embodiments
It is described further according to accompanying drawing.
Embodiment
Further to illustrate the present invention to reach the technological means and effect that above-mentioned purpose is taken, below in conjunction with accompanying drawing
And preferred embodiment, embodiment, structure, feature and its effect to the present invention are described in detail.It should be appreciated that this
The specific embodiment of place description is not intended to limit the present invention only to explain the present invention.
Shown in reference picture 1, Fig. 1 is the overall structure and scale diagrams of double frequency slit antenna of the present invention.In the present embodiment
In, double frequency slit antenna proposed by the present invention includes a multimode gap resonator, and the multimode gap resonator is by a folding
Gap resonator (FSLR) 1 and a co-planar waveguide step electric impedance resonator (CSIR) 2 constitute, and the co-planar waveguide ladder hinders
Antiresonance device 2 is S by a width1Metal wire 5 (shown in reference picture 2) and metallic RF (Ground) 4 be connected, pass through
The multimode gap resonator feed is given in one end for the coplanar waveguide feeder line 3 (abbreviation CPW feeder lines 3) of T-shaped structure, it is possible to achieve
One dual-band antenna.The double frequency slit antenna etching is on medium substrate 10, and the upper surface of the medium substrate 10 is laid with
Metal level, it 4 (4 is not by multimode gap resonator for example to apply copper metal layer as metallic RF metallic RF in Fig. 1
The part metal level of encirclement).The specific sheet material type of medium substrate 10 is that single-layer metal FR4 sheet materials, thickness are
1.6mm, dielectric constant are 4.4.
With reference to shown in Fig. 2, Fig. 2 is the structural representation of the multimode gap resonator in double frequency slit antenna of the present invention.
In the present embodiment, multimode gap resonator folds gap resonator 1 and a co-planar waveguide stepped impedance resonance by one
Device 2 is constituted, and symmetrical on the shaft centre line of the multimode gap resonator.Folding gap resonator 1 includes one
First line of rabbet joint 21, two pieces second line of rabbet joint 22, two third slot lines 23, two the 4th line of rabbet joint 24 and two the 5th line of rabbet joint 25.Two
The two ends that one end of second line of rabbet joint of root 22 is each vertically connected on first line of rabbet joint 21 form right angle U-shape structure, wherein one the 3rd
One end of the line of rabbet joint 23 and one end of wherein one the 5th line of rabbet joint 25 are each vertically connected on the two ends of wherein one the 4th line of rabbet joint 24
An angle of collimation U-shape structure is formed, wherein one end and one end of wherein another 5th line of rabbet joint 25 of another third slot line 23
The two ends for being each vertically connected on wherein another 4th line of rabbet joint 24 form an angle of collimation U-shape structure, two third slot lines 23
The other end be vertically connected on the other ends of two second line of rabbet joint 22, two the 4th line of rabbet joint 24 are located between two second line of rabbet joint 22
And be parallel to each other, two the 4th line of rabbet joint 24 are close to each other and separated by metal wire 5.First line of rabbet joint 21, third slot line 23 and
Five line of rabbet joint 25 are parallel to each other and separate to form co-planar waveguide step electric impedance resonator 2 by certain media substrate 10.Due to multimode
Gap resonator is symmetrical on the shaft centre line of the multimode gap resonator, therefore two angle of collimation U-shape structures are on more
The shaft centre line of die slot gap resonator is symmetrical.
In the present embodiment, the right angle U-shape structure is defined as constituting two U-shaped corners for right angle and constituted U-shaped
Two line of rabbet joint equal lengths (being second line of rabbet joint 22), it is right angle that angle of collimation U-shape structure, which is defined as constituting accurate two U-shaped corners,
And constitute accurate two U-shaped line of rabbet joint length it is unequal (line of rabbet joint is third slot line 23, and another line of rabbet joint is the 5th line of rabbet joint 25,
And the length of third slot line 23 is more than the 5th line of rabbet joint 25).The line of rabbet joint is the hollow out gap opened up on medium substrate 10.
With reference to shown in Fig. 1 and Fig. 2, the length of first line of rabbet joint 21 is the length L of two third slot lines 233With metal wire 5
Width S1Sum (i.e. 2 × L3+S1), the width of first line of rabbet joint 21 is W1；The length of second line of rabbet joint 22 is L2, the length of third slot line 23
Spend for L3, the length of the 4th line of rabbet joint 24 is L4, the length of the 5th line of rabbet joint 25 is L5, second line of rabbet joint 22, third slot line 23, the 4th groove
The width of the line of rabbet joint 25 of line 24 and the 5th is W2；Inner side spacing between two the 4th line of rabbet joint 24 is S0, two the 4th line of rabbet joint 24 it
Between outside spacing be equal to metal wire 5 width, be S1；Spacing between first line of rabbet joint 21 and the 5th line of rabbet joint 25 is S2。
The co-planar waveguide step electric impedance resonator 2 is the certain media substrate 10 surrounded by folding gap resonator 1,
And by a width for S1 metal wire 5 and metallic RF 4 be connected.First line of rabbet joint 21, the line of rabbet joint of third slot line 23 and the 5th
25 are parallel to each other and separate to form co-planar waveguide step electric impedance resonator 2 by certain media substrate 10.
With reference to shown in Fig. 3 and Fig. 1, Fig. 3 is that the multimode gap resonator in double frequency slit antenna of the present invention offers the line of rabbet joint
Structural representation.In the present embodiment, the medium position of first line of rabbet joint 21 of folding gap resonator 1 lets droop Nogata
To offering the 6th line of rabbet joint 26, one end of the 6th line of rabbet joint 26 is communicated to the medium position of first line of rabbet joint 21, and the other end is to downward
Stretch and be connected to a long edge of medium substrate 10.The length of 6th line of rabbet joint 26 is L0+d1, width is W0+2×d0。
With reference to shown in Fig. 4, Fig. 4 is the structural representation of the coplanar waveguide feeder line 3 in double frequency slit antenna of the present invention.At this
In embodiment, the T-shaped structure of the coplanar waveguide feeder line 3, the coplanar waveguide feeder line 3 includes the first feeder line 31 and the second feeder line
32, one end of second feeder line 32 is vertically connected to the medium position of the first feeder line 31.The length of first feeder line 31 is T-shaped knot
The end lateral length L of structure6Twice and the second feeder line 32 width W0Sum (i.e. 2 × L6+W0), the width of the first feeder line 31
For W6；Between first feeder line 31 and the lower frame of first line of rabbet joint 21 at intervals of d1；The length of second feeder line 32 is L0, the second feeder line
32 width is W0.Interval between two articles of frames of the second feeder line 32 and two articles of frames of the 6th line of rabbet joint 26 is d0(the second feedback
The hollow out gap of the both sides of line 32 is d0), the end lateral length of the coplanar waveguide feeder line 3 of the T-shaped structure is L6.Making
During the double frequency slit antenna of the present invention, the first feeder line 31 of coplanar waveguide feeder line 3 is placed directly in the first of gap resonator 1
In the line of rabbet joint 21 and make between the first feeder line 31 and the lower frame of first line of rabbet joint 21 at intervals of d1Position at, and by CPW feeder lines 3
Second feeder line 32 is placed directly in the 6th line of rabbet joint 26 and makes the hollow out gaps of the both sides of the second feeder line 32 be d0Middle position, from
And make it that the coplanar waveguide feeder line 3 of T-shaped structure is fed to multimode gap resonator, realize double frequency gap day of the present invention
Line.
With reference to shown in Fig. 1, the size of double frequency slit antenna preferred embodiment of the present invention is as shown in table 1 below：
The size of the double frequency slit antenna preferred embodiment of the present invention of table 1
| Parameter | W0 | W1 | W2 | W6 | L0 | L1 | L2 | L3 | L4 |
| It is worth (mm) | 4.6 | 2.2 | 1.2 | 0.5 | 22 | 17.55 | 9.0 | 18.45 | 4.6 |
| Parameter | L5 | L6 | d0 | d1 | d2 | S0 | S1 | S2 | |
| It is worth (mm) | 8.55 | 7.8 | 0.4 | 1.2 | 1.0 | 4.6 | 3.6 | 2.2 |
In the present embodiment, the length L of the medium substrate 10 is preferably 68.9mm, and width is that W is preferably 46mm.It is described
The length L and width W of medium substrate 10 can be selected according to the demand of antenna size size.
As shown in figure 5, Fig. 5 is the reflectance factor schematic diagram of double frequency slit antenna of the present invention.In the present embodiment, double frequency is stitched
Reflectance factor (the S of gap antenna11) as shown in Figure 5, it can be seen that antenna has two working frequency range (S11<- 10dB), two frequency ranges
Centre frequency be respectively 2.64GHz and 5.74GHz, relative bandwidth is respectively 14.8% and 36.3%.Antenna Operation is first
Working frequency range has a resonant frequency (fCSIR0), resonant frequency fCSIR0For the basic of co-planar waveguide step electric impedance resonator 2
Resonant frequency.Antenna Operation has three resonant frequency (f in the second working frequency rangeCSIR1, fTR, fFSLR2), wherein fCSIR1To be coplanar
The one class resonant frequency that waveguide step electric impedance resonator 2 is produced；The T-shaped structure of coplanar waveguide feeder line 3 forms a monopole
Structure, fTRThe resonant frequency produced for coplanar waveguide feeder line 3；fFSLR2To fold the second order resonance frequency that gap resonator 1 is produced
Rate.It is worth noting that, fFSLR0For fold gap resonator 1 fundamental resonance frequency, but be due to its Q value (quality factor) too
Greatly, therefore fail to form the effective working frequency range of antenna.
Each resonant frequency of double frequency slit antenna of the present invention can be tuned by adjusting different design size parameters,
Therefore the invention provides a kind of tuning methods of double frequency slit antenna, this method includes：By the coplanar ripple for changing T-shaped structure
Lead the lateral length L of feeder line 36Design parameter come adjust coplanar waveguide feeder line 3 generation resonant frequency fTR, work as L6During increase,
fTRFrequency reduces；By changing the inner side interval S between two the 4th line of rabbet joint for folding gap resonator 10Design parameter come
The fundamental resonance frequency and one class resonant frequency of co-planar waveguide step electric impedance resonator 2 are adjusted, works as S0During increase, co-planar waveguide rank
The fundamental resonance frequency of terraced electric impedance resonator 2 and two one class resonant frequency fCSIR0、fCSIR1Increase, and fCSIR1Change
Speed is more than fCSIR0；By changing the outside interval S between two the 4th line of rabbet joint for folding gap resonator 11Design parameter
To adjust the second order resonant frequency f for folding gap resonator 1FSLR, work as S1During increase, second order resonant frequency fFSLRIncrease.Thus may be used
Know, L6Reflectance factor (S of the Antenna Operation in the second working frequency range can effectively be adjusted11) amplitude；S0Can effectively it adjust
Lower limiting frequency of the Antenna Operation in the second working frequency range；S1Can effectively adjust Antenna Operation the second working frequency range upper section
Only frequency, is illustrated below in conjunction with such as Fig. 6, Fig. 7, Fig. 8.
As shown in fig. 6, lateral length Ls of the Fig. 6 for the T-shaped structure of the end of coplanar waveguide feeder line 36To antenna reflection coefficient
Influence schematic diagram.In the present embodiment, because fTRProduced by coplanar waveguide feeder line 3, therefore can be by adjusting T-shaped structure
Coplanar waveguide feeder line 3 lateral length L6To tune：Work as L6During increase, fTRReduce.
As shown in fig. 7, the inner side interval S between two the 4th line of rabbet joint 24 of the Fig. 7 to fold gap resonator0It is anti-to antenna
Penetrate the influence schematic diagram of coefficient.In the present embodiment, S is worked as0During increase, the length of co-planar waveguide step electric impedance resonator 2 reduces,
Therefore the fundamental resonance frequency and one class resonant frequency (f of co-planar waveguide step electric impedance resonator 2CSIR0, fCSIR1) increase, and
And fCSIR1The speed of change is faster.
As shown in figure 8, the outside interval S between two the 4th line of rabbet joint 24 of the Fig. 8 to fold gap resonator1It is anti-to antenna
Penetrate the influence schematic diagram of coefficient.In the present embodiment, S is worked as1During increase, the length for folding gap resonator 1 reduces, therefore fFSLR
Increase.
Not only design size is small for double frequency slit antenna double frequency slit antenna of the present invention of the present invention, processing it is simple into
This is cheap, and realizes the dual frequency characteristics of antenna by coplanar wave guide feedback using a multimode gap resonator.The double frequency
The working frequency range of slot antenna includes four resonant frequencies, the design size parameter different by adjusting come tuned antenna each
Resonant frequency, can effectively adjust the center operating frequency and bandwidth characteristic of antenna.
The preferred embodiments of the present invention are these are only, are not intended to limit the scope of the invention, it is every to utilize this hair
Equivalent structure or the equivalent function conversion that bright specification and accompanying drawing content are made, or directly or indirectly it is used in other related skills
Art field, is included within the scope of the present invention.
Claims (8)
1. a kind of double frequency slit antenna, is etched in the upper surface of medium substrate, the upper surface of the medium substrate is laid with metal level
As metallic RF, it is characterised in that the double frequency slit antenna includes multimode gap resonator, the multimode gap resonator
Constituted by folding gap resonator and co-planar waveguide step electric impedance resonator, folding gap resonator is by first groove
Line, two second line of rabbet joint, two third slot lines, two the 4th line of rabbet joint and two the 5th line of rabbet joint compositions, the co-planar waveguide rank
Terraced electric impedance resonator is connected by metal wire with metallic RF, and is presented by an end for the co-planar waveguide of T-shaped structure
Line is fed to multimode gap resonator.
2. double frequency slit antenna as claimed in claim 1, it is characterised in that the co-planar waveguide step electric impedance resonator is served as reasons
The certain media substrate that folding gap resonator is surrounded, and be S by a width1Metal wire and metallic RF
Connection.
3. double frequency slit antenna as claimed in claim 1, it is characterised in that one end of two second line of rabbet joint is each vertical
The two ends for being connected to first line of rabbet joint form right angle U-shape structure, wherein one end and wherein one the 5th line of rabbet joint of third slot line
One end be each vertically connected on the two ends of wherein one the 4th line of rabbet joint and form an angle of collimation U-shape structure, wherein another the
One end of third slot line and one end of wherein another 5th line of rabbet joint are each vertically connected on the two ends of wherein another 4th line of rabbet joint
An angle of collimation U-shape structure is formed, the other end of two third slot lines is vertically connected on the other end of two second line of rabbet joint.
4. double frequency slit antenna as claimed in claim 3, it is characterised in that two the 4th grooves of folding gap resonator
Line is located between two second line of rabbet joint and is parallel to each other, and two the 4th line of rabbet joint are close to each other and separated by metal wire, the first groove
Line, third slot line and the 5th line of rabbet joint are parallel to each other and separate that to form the co-planar waveguide stepped impedance humorous by certain media substrate
Shake device.
5. double frequency slit antenna as claimed in claim 3, it is characterised in that first line of rabbet joint of folding gap resonator
Direction offers the 6th line of rabbet joint to medium position downward vertically, and one end of the 6th line of rabbet joint is communicated to the medium position of first line of rabbet joint,
The other end of 6th line of rabbet joint extends downwardly and is connected to one article of long edge of medium substrate.
6. double frequency slit antenna as claimed in claim 5, it is characterised in that the coplanar waveguide feeder line include the first feeder line and
Second feeder line, one end of second feeder line is vertically connected to the medium position formation T-shaped structure of the first feeder line, first feedback
Line be built in first line of rabbet joint of the gap resonator and make the first feeder line between the first line of rabbet joint lower frame at intervals of d1
Position at, second feeder line is built in the 6th line of rabbet joint and makes the hollow out gaps of the second feeder line both sides be d0Middle position
Place, makes the coplanar waveguide feeder line of T-shaped structure be fed to multimode gap resonator.
7. double frequency slit antenna as claimed in claim 3, it is characterised in that the inner side spacing between two the 4th line of rabbet joint
For S0, the outside spacing between two the 4th line of rabbet joint is equal to the width of metal wire, is S1；The co-planar waveguide feedback of the T-shaped structure
The lateral length of line is L6。
8. a kind of tuning methods of double frequency slit antenna, for the double frequency slit antenna described in any one of claim 1 to 7, its
It is characterised by, the tuning methods of the double frequency slit antenna include：
By the lateral length L for the coplanar waveguide feeder line for changing T-shaped structure6Design parameter come adjust coplanar waveguide feeder line produce
Resonant frequency fTR, work as L6During increase, fTRFrequency reduces；
By changing the inner side interval S between two the 4th line of rabbet joint for folding gap resonator0Design parameter adjust coplanar ripple
The fundamental resonance frequency and one class resonant frequency of step electric impedance resonator are led, works as S0During increase, co-planar waveguide stepped impedance resonance
The fundamental resonance frequency of device and two one class resonant frequency fCSIR0、fCSIR1Increase, and fCSIR1The speed of change is more than
fCSIR0；
By changing the outside interval S between two the 4th line of rabbet joint for folding gap resonator1Design parameter adjust folded seam
The second order resonant frequency f of gap resonatorFSLR, work as S1During increase, second order resonant frequency fFSLRIncrease.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295144.8A CN107240776B (en) | 2017-04-28 | 2017-04-28 | Dual-frequency slot antenna and tuning method thereof |
| PCT/CN2017/107198 WO2018196302A1 (en) | 2017-04-28 | 2017-10-21 | Dual-band slot antenna and tuning method therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710295144.8A CN107240776B (en) | 2017-04-28 | 2017-04-28 | Dual-frequency slot antenna and tuning method thereof |
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| Publication Number | Publication Date |
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| CN107240776A true CN107240776A (en) | 2017-10-10 |
| CN107240776B CN107240776B (en) | 2020-02-04 |
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| CN201710295144.8A Expired - Fee Related CN107240776B (en) | 2017-04-28 | 2017-04-28 | Dual-frequency slot antenna and tuning method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018196302A1 (en) * | 2017-04-28 | 2018-11-01 | 深圳市景程信息科技有限公司 | Dual-band slot antenna and tuning method therefor |
| CN113972497A (en) * | 2020-07-22 | 2022-01-25 | 华为技术有限公司 | Electronic equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102633997B1 (en) * | 2019-07-12 | 2024-02-05 | 엘지디스플레이 주식회사 | Display Device Including Antenna And Method Of Fabricating The Same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| EP1158606A1 (en) * | 2000-05-26 | 2001-11-28 | Sony International (Europe) GmbH | Dual-spiral-slot antenna for circular polarization |
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| CN107240776B (en) * | 2017-04-28 | 2020-02-04 | 深圳市景程信息科技有限公司 | Dual-frequency slot antenna and tuning method thereof |
| CN107196064A (en) * | 2017-05-05 | 2017-09-22 | 深圳市景程信息科技有限公司 | The mode of resonance analysis method of double frequency slit antenna |
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2017
- 2017-04-28 CN CN201710295144.8A patent/CN107240776B/en not_active Expired - Fee Related
- 2017-10-21 WO PCT/CN2017/107198 patent/WO2018196302A1/en active Application Filing
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2018196302A1 (en) * | 2017-04-28 | 2018-11-01 | 深圳市景程信息科技有限公司 | Dual-band slot antenna and tuning method therefor |
| CN113972497A (en) * | 2020-07-22 | 2022-01-25 | 华为技术有限公司 | Electronic equipment |
| CN113972497B (en) * | 2020-07-22 | 2023-02-10 | 华为技术有限公司 | Electronic device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107240776B (en) | 2020-02-04 |
| WO2018196302A1 (en) | 2018-11-01 |
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