CN107248613A - A kind of High-gain dual-frequency antenna element - Google Patents
A kind of High-gain dual-frequency antenna element Download PDFInfo
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- CN107248613A CN107248613A CN201710465169.8A CN201710465169A CN107248613A CN 107248613 A CN107248613 A CN 107248613A CN 201710465169 A CN201710465169 A CN 201710465169A CN 107248613 A CN107248613 A CN 107248613A
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/14—Reflecting surfaces; Equivalent structures
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a kind of High-gain dual-frequency antenna element, including irradiation structure group, feed strip and reflection floor, the irradiation structure group is connected conducting with the reflection floor and forms electromagnetic dipole.The present invention relates to mobile communication technology field, a kind of High-gain dual-frequency antenna element, using being stacked, the upper strata high frequency oscillator of complementary structure and lower floor's low-frequency vibrator structure, effectively increase the gain of low frequency, while realizing high-gain requirement, beam angle is more than 80 degree, wide coverage.Gap of the High-gain dual-frequency antenna element between two short-circuit walls sets feed strip, obtains impedance matching, it is ensured that antenna element echo reflection in 2.4GHz 2.47GHz and 3.3GHz 4GHz frequency range is less than 15dB, and voltage standing wave ratio VSWR is less than 1.5.
Description
Technical field
The present invention relates to mobile communication technology field, more particularly to a kind of High-gain dual-frequency antenna element.
Background technology
WiMAX：Full name is Worldwide Interoperability for Microwave Access, i.e. the whole world is micro-
Ripple interconnection access.
With the fast development of wireless communication technology, the world today emerges a large amount of different types of communication networks, uses
Place oneself in the midst of among the heterogeneous network environment of a numerous and complicated at family.Wherein, wireless access and high-speed transfer are the excellent of WiFi technology
Gesture, but the network coverage area of WiFi technology is extremely limited, mobility is not enough, it is difficult to ensure communication quality.And WiMAX energy
It is enough to carry out data transmission in 50 kilometer ranges by wireless mode, and network coverage radius is up to 1.6 kilometers, WiFi with
Both WiMAX, which are combined, can form bigger network coverage area, from thermoelectricity to hot-zone, again to whole city, it is possible to achieve
Multimegabit mobile broadband online per second, therefore, WiFi/WiMAX dual-frequency systems have more wide prospect.For WiFi and
The dual-band antenna and its micro-base station antenna element of WiMAX frequency ranges also just turn into urgent demand.
Common WiFi and WiMAX antenna structures have air microstrip structure, also there is symmetrical dipole structure etc., general, it is right
The symmetrical dipole of oscillator structure is called square patch, and size is the half of wavelength, and size is larger, is to ensure when realizing double frequency function
Gain can cause pattern beamwidth smaller.The antenna element of symmetrical dipole form is because its broadband character is in 2.6-2.7GHz
Band operation, can cause interference to other LTE base station system antennas, and low-frequency gain 2.4GHz generally compares high-frequency gain
3.5GHz gains can decrease.
The content of the invention
In order to solve the above-mentioned technical problem, it is an object of the invention to provide a kind of wide coverage, High-gain dual-frequency antenna
Unit.
The technical solution adopted in the present invention is：A kind of High-gain dual-frequency antenna element, including irradiation structure group, feed strip
With reflection floor, the irradiation structure group is connected conducting with the reflection floor and forms electromagnetic dipole, the irradiation structure group
Including symmetrically arranged left irradiation structure and right irradiation structure, the left irradiation structure includes left radiant body and left short-circuit wall, institute
State left radiant body be arranged on the left short-circuit wall top and the right irradiation structure vertical with left short-circuit wall include right radiant body
With right short-circuit wall, the right radiant body be arranged on the top of the right short-circuit wall and with described in the vertical parallel setting of right short-circuit wall
The bottom of the bottom of left short-circuit wall and the right short-circuit wall is connected with the reflection floor perpendicular, the left short-circuit wall and described
Right short-circuit wall is opposing parallel to be set, and has the first gap, first gap between the left short-circuit wall and the right short-circuit wall
Provided with the feed strip, there is the second gap, the feed strip and the right side are short between the feed strip and the left short-circuit wall
There is third space, the left high frequency oscillator and left low frequency that the left radiant body includes being stacked and being parallel to each other shake between the wall of road
Son, the right radiant body includes the right high frequency oscillator and right low-frequency vibrator for being stacked and being parallel to each other, the left high frequency oscillator
The top of the left low-frequency vibrator and the top of right low-frequency vibrator, the left high frequency vibrating attached bag are separately positioned on right high frequency oscillator
Left high frequency radiation antenna traces area and left high frequency vibrating subwindow are included, the left low-frequency vibrator includes left low frequency radiation antenna traces area
With left low-frequency vibrator window, the left high frequency radiation antenna traces area and left high frequency vibrating subwindow respectively with the left low-frequency vibrator
Window and left low frequency radiation antenna traces area Corresponding matching cause the left high frequency oscillator to form complementation with the left low-frequency vibrator
Structure, the right high frequency vibrating attached bag includes right high frequency radiation antenna traces area and right high frequency vibrating subwindow, the right low-frequency vibrator bag
Include right low frequency radiation antenna traces area and right low-frequency vibrator window, the right high frequency radiation antenna traces area and right high frequency oscillator window
Mouth cause respectively with the right low-frequency vibrator window and right low frequency radiation antenna traces area Corresponding matching the right high frequency oscillator with
The right low-frequency vibrator formation complementary structure.
As the further improvement of such scheme, the left high frequency radiation antenna traces area and the right high frequency radiation antenna
Line areas is in n fonts, and the left high frequency radiation antenna traces area includes left high frequency connect band, and the left high frequency connect band is in L
Font, the left high frequency connect band includes orthogonal left high frequency parallel connecting strips and left frequency vertical connect band, the left side
High frequency radiation antenna traces area also includes raising one's arm based on two left high frequencies that left high frequency parallel connecting strips side is stretched out in the same direction, described
The both sides of left frequency vertical connect band connect with the side of the left high frequency parallel connecting strips and the top of the left short-circuit wall respectively
Connect；The right high frequency radiation antenna traces area includes right high frequency connect band, and the right high frequency connect band is in L fonts, the right height
Frequency connect band includes orthogonal right high frequency parallel connecting strips and right frequency vertical connect band, the right high frequency radiation antenna line
Road area also includes raising one's arm based on two right high frequencies that right high frequency parallel connecting strips side is stretched out in the same direction, the right frequency vertical connection
The both sides of band are connected with the side of the right high frequency parallel connecting strips and the top of the right short-circuit wall respectively.
As the further improvement of such scheme, the left low frequency radiation antenna traces area and the right low frequency radiation antenna
Line areas is in E fonts, and the left low frequency radiation antenna traces area includes left low frequency connect band and same based on left low frequency connect band
Raised one's arm to three left low frequencies of stretching, the left low frequency raise one's arm raised one's arm including the first left low frequency, the second left low frequency is raised one's arm and the 3rd
Left low frequency is raised one's arm, and the first left low frequency is raised one's arm to raise one's arm with the 3rd left low frequency and is respectively distributed to the described second left low frequency and raises one's arm
Both sides, be sequentially connected shape before and after the left low frequency connect band, the first left low frequency are raised one's arm, left short-circuit wall and the 3rd left low frequency are raised one's arm
Into ring-type of remaining silent；The right low frequency radiation antenna traces area includes right low frequency connect band and in the same direction based on right low frequency connect band side
The three right low frequencies stretched out are raised one's arm, the right low frequency raise one's arm raised one's arm including the first right low frequency, the second right low frequency is raised one's arm and the 3rd is right
Low frequency is raised one's arm, and the first right low frequency, which raises one's arm to raise one's arm with the 3rd right low frequency, is respectively distributed to what the described second right low frequency was raised one's arm
Both sides, are in turn connected to form before and after the right low frequency connect band, the first right low frequency are raised one's arm, right short-circuit wall and the 3rd right low frequency are raised one's arm
Remain silent ring-type.
As the further improvement of such scheme, the feed strip is class n-type structure, and the feed strip includes the first feed
Band, the second feed strip and the 3rd feed strip, first feed strip and opposing parallel set of the right short-circuit wall are formed between the 3rd
Gap, the 3rd feed strip forms the second gap, the two ends of second feed strip with opposing parallel set of the left short-circuit wall
It is connected respectively with the top of first feed strip and the top of the 3rd feed strip, second feed strip is perpendicular to described
Left short-circuit wall and the right short-circuit wall, have empty avoiding gap between the feed strip and the reflection floor.
As the further improvement of such scheme, left window, the right high frequency are provided with the left frequency vertical connect band
Right window is provided with vertical connect band the second high frequency joint face, the left window is symmetrical arranged with the right window.
As the further improvement of such scheme, the left short-circuit wall both sides symmetrically offer left seam gap, the right short circuit
Wall both sides symmetrically offer right seam gap, and the left seam gap is symmetrical arranged with the right seam gap, the left seam gap and the right seam gap
With the reflection floor perpendicular.
As the further improvement of such scheme, the reflection floor is rectangle or the rectangle conductor with flange
Chamber.
As the further improvement of such scheme, the reflection floor is made up of metal material.
As the further improvement of such scheme, the feed strip is made up of metal material.
The beneficial effects of the invention are as follows：
A kind of High-gain dual-frequency antenna element, using being stacked, the upper strata high frequency oscillator and lower floor's low frequency of complementary structure
Oscillator structure, effectively increases the gain of low frequency, and while realizing high-gain requirement, beam angle is more than 80 degree, coverage
Extensively.Gap of the High-gain dual-frequency antenna element between two short-circuit walls sets feed strip, obtains impedance matching, it is ensured that antenna
Unit echo reflection in 2.4GHz-2.47GHz and 3.3GHz-4GHz frequency range is less than -15dB, voltage standing wave ratio VSWR
Less than 1.5.
Brief description of the drawings
The embodiment to the present invention is described further below in conjunction with the accompanying drawings：
Fig. 1 is a kind of structural representation of High-gain dual-frequency antenna element of the invention；
Fig. 2 is a kind of front view of High-gain dual-frequency antenna element of the invention；
Fig. 3 is a kind of structural representation of the left high frequency oscillator of High-gain dual-frequency antenna element of the invention；
Fig. 4 is a kind of top view of right low-frequency vibrator of High-gain dual-frequency antenna element of the invention；
Fig. 5 is a kind of oscillogram of High-gain dual-frequency antenna element return loss of the invention；
Fig. 6 is E, H side gains directional diagram schematic diagram of a kind of High-gain dual-frequency antenna element of the invention in 3.5GHz；
Fig. 7 is E, H side gains directional diagram schematic diagram of a kind of High-gain dual-frequency antenna element of the invention in 2.4GHz.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.
Fig. 1 is a kind of structural representation of High-gain dual-frequency antenna element of the invention, and Fig. 2 is that a kind of high-gain of the invention is double
The front view of frequency antenna element, with reference to shown in Fig. 1 and Fig. 2, a kind of High-gain dual-frequency antenna element, including it is irradiation structure group, anti-
Floor 3 and feed strip 4 are penetrated, irradiation structure group is connected conducting with reflection floor 3 and forms electromagnetic dipole.
The present embodiment irradiation structure group includes symmetrically arranged left irradiation structure and right irradiation structure, and left irradiation structure includes
Left radiant body and left short-circuit wall 13, right irradiation structure include right radiant body and right short-circuit wall 23, and left radiant body is arranged on left short circuit
The top of wall 13 and vertical with left short-circuit wall 13, right radiant body is arranged on the top of right short-circuit wall 23 and hung down with right short-circuit wall 13
Directly, the bottom for the left short-circuit wall 13 be arrangeding in parallel and the bottom of right short-circuit wall 23 are vertical with the reflection floor 3 to be connected, left short
Road wall 13 and right short-circuit wall 23 are opposing parallel to be set, and has the first gap between left short-circuit wall 13 and right short-circuit wall 23, and described the
One gap is provided with the feed strip 43.
Further, left radiant body includes the left high frequency oscillator 11 and left low-frequency vibrator 12 for being stacked and being parallel to each other,
Left high frequency oscillator 11 is arranged on the top of left low-frequency vibrator 12, and right radiant body includes the right high frequency vibrating for being stacked and being parallel to each other
Son 21 and right low-frequency vibrator 22, right high frequency oscillator 21 are arranged on the top of right high frequency oscillator 22, left high frequency oscillator 11 and left low frequency
Approximate 0.04 λ of spacing d1 between oscillator 121, wherein λ1Represent the wavelength of low frequency operating frequency.Right high frequency oscillator 21 and right low frequency
Approximate 0.04 λ of spacing d1 between oscillator 221, wherein λ1Represent the wavelength of low frequency operating frequency.Left low-frequency vibrator 12 with reflectingly
Spacing d2 between plate 3 is less than 0.25 λ1, wherein λ1Represent the wavelength of low frequency operating frequency.In the present embodiment, d2=21.6mm.
Fig. 3 is a kind of structural representation of the left high frequency oscillator of High-gain dual-frequency antenna element of the invention, and Fig. 4 is the present invention one
The top view of the right low-frequency vibrator of High-gain dual-frequency antenna element is planted, with reference to shown in Fig. 1, Fig. 3 and Fig. 4, left high frequency oscillator 11 includes
Left high frequency vibrating subwindow 111 and left high frequency radiation antenna traces area 112, right high frequency oscillator 21 include right high frequency vibrating subwindow 211
With right high frequency radiation antenna traces area 212, left low-frequency vibrator 12 includes left low-frequency vibrator window 121 and left low frequency radiation antenna line
Road area 122, right low-frequency vibrator 22 includes right low-frequency vibrator window 221 and right low frequency radiation antenna traces area 222, left high frequency oscillator
Window 111 and left high frequency radiation antenna traces area 112 respectively with left low-frequency vibrator window 121 and left low frequency radiation antenna traces area
122 Corresponding matchings so that left high frequency oscillator 11 and left low-frequency vibrator 12 formation complementary structure, right high frequency vibrating subwindow 211 and the right side
High frequency radiation antenna traces area 212 respectively with right low-frequency vibrator window 221 and corresponding of right low frequency radiation antenna traces area 222
Match somebody with somebody so that right high frequency oscillator 21 and right low-frequency vibrator 22 formation complementary structure, left high frequency radiation antenna traces area 112 includes left height
Frequency connect band 1121 and raise one's arm 1122 based on two left high frequencies that the left side of high frequency connect band 1121 is stretched out in the same direction, wherein, Zuo Gao
Frequency connect band 1121 is in L fonts, and left high frequency connect band 1121 includes orthogonal left high frequency parallel connecting strips 11211 and left height
The vertical connect band 11212 of frequency, the left side of high frequency parallel connecting strips 11211 is stretched out two left high frequencies and raised one's arm 1122, left high frequency in the same direction
Raise one's arm 1122 and left frequency vertical connect band 11212 be respectively distributed to the both sides of left high frequency parallel connecting strips 11211, left high frequency hangs down
The both sides of direct-connected tape splicing 11212 are connected with the side of left high frequency parallel connecting strips 11211 and the top of left short-circuit wall 13 respectively.It is right
The structure of high frequency oscillator 21 is identical with the left structure of high frequency oscillator 11, and right high frequency radiation antenna traces area 112 includes right high frequency connect band
Raised one's arm with based on two right high frequencies that right high frequency connect band side is stretched out in the same direction, wherein, right high frequency connect band is in L fonts, right height
Frequency connect band includes orthogonal right high frequency parallel connecting strips and right frequency vertical connect band, the one of right high frequency parallel connecting strips
Side in the same direction stretch out two right high frequencies raise one's arm, right high frequency raise one's arm with right frequency vertical connect band be respectively distributed to right high frequency it is parallel connection
The both sides of band, the both sides of right frequency vertical connect band connect with the side of right parallel connecting strips and the top of right short-circuit wall 23 respectively
Connect.
In the present embodiment, left high frequency oscillator 11 and right high frequency oscillator 21 are using the design of N font structures, left high frequency oscillator 11
The left high frequency length that 1122 length and the right high frequency of right high frequency oscillator 21 raise one's arm of raising one's arm be used equally for control high-frequency resonant frequency
Rate.It is more highly preferred to, the brachium of the left high frequency oscillator of the present embodiment and the brachium of right high frequency oscillator are that 15mm, wall wide are 3mm.
Further, it is connected with left short-circuit wall 13 in left frequency vertical connect band 11212 and is provided with left window 113, it is short with the right side
Road wall 23 is connected and right window 213 is provided with right frequency vertical connect band, and left window 113 and right window 213 are symmetrical arranged, window
Size influences the resonance size of high polariton.It is preferred that, left window 113 and the equal rectangular in shape of right window 213.In left high frequency
Oscillator 11 and the design of the right uplifting window of high frequency oscillator 21 further reduce the size of high frequency oscillator.Be more highly preferred to, left window and
Right window is a length of 6mm, a width of 5.4mm rectangular window.
Further, with reference to Fig. 1 and Fig. 4, left low frequency radiation antenna traces area 122 and right low frequency radiation antenna traces area
222 be in E fonts, and left low frequency radiation antenna traces area includes left low frequency connect band 1121 and same based on left low frequency connect band 1121
Raised one's arm to three left low frequencies of stretching, left low frequency is raised one's arm raises one's arm 1223 and including the first left low frequency the 1222, second left low frequency of raising one's arm
3rd left low frequency raises one's arm 1224, the first left low frequency raise one's arm 1222 and the 3rd left low frequency raise one's arm and 1224 be respectively distributed to the second left low frequency
Raise one's arm 1223 both sides, raise one's arm 1222, left short-circuit wall 23, the 3rd left low frequency of left low frequency connect band 1121, the first left low frequency raise one's arm
Rectangle is in turn connected to form before and after 1224 to remain silent ring-type；The structure of right low-frequency vibrator 22 is identical with the structure of left low-frequency vibrator 12.
Right low frequency radiation antenna traces area 222 includes right low frequency connect band and three right sides stretched out in the same direction based on right low frequency connect band side
Low frequency is raised one's arm, right low frequency raise one's arm raised one's arm including the first right low frequency, the second right low frequency is raised one's arm and raised one's arm with the 3rd right low frequency, first is right low
Frequency vibration arm and the 3rd right low frequency, which are raised one's arm, is respectively distributed to the both sides that the second right low frequency is raised one's arm, right low frequency connect band, the first right low frequency
Raise one's arm, right short-circuit wall and the 3rd right low frequency are in turn connected to form rectangle and remained silent ring-type before and after raising one's arm.It is preferred that, in the present embodiment,
The remain silent outer ring size of ring of rectangle is 22mm*19mm.
In the present embodiment, left low-frequency vibrator 21 and right low-frequency vibrator 22 use E font structures, the of left low-frequency vibrator 12
One left low frequency raises one's arm 1222 wall wide and the 3rd left low frequency is raised one's arm 1224 wall wide and the first right low frequency of right low-frequency vibrator 22
The wall wide that the wall wide and the 3rd right low frequency raised one's arm are raised one's arm is used equally for adjusting input matching of the antenna element in low frequency part, left
First left low frequency of low-frequency vibrator 12 raises one's arm 1222 length and the 3rd left low frequency is raised one's arm 1224 length and right low-frequency vibrator
The length that the length and the 3rd right low frequency that 22 the first right low frequency is raised one's arm are raised one's arm is used equally for changing the antenna element in low frequency portion
The frequency divided, the second left low frequency of left low-frequency vibrator 12 raises one's arm 1223 length that the direction of short-circuit wall 13 extends to the left for adjusting this
Antenna element is in the frequency shift (FS) of low frequency part, and the second right low frequency of right low-frequency vibrator 22 raises one's arm the direction of short-circuit wall 23 extension to the right
Length can also be used for adjust antenna element low frequency part frequency shift (FS).
It is more highly preferred to, in the present embodiment, the first left low frequency raises one's arm 1222 wall wide and the 3rd left low frequency is raised one's arm 1224
Wall wide is 2mm, and the wall wide that the wall wide and the 3rd right low frequency that the first right low frequency is raised one's arm are raised one's arm is 2mm, and the second left low frequency is raised one's arm
The length that 1223 length and the second right low frequency are raised one's arm is 5mm, the second left low frequency raise one's arm 1223 width and the second right low frequency
The width raised one's arm is 8mm.
Further, the left both sides of short-circuit wall 13 symmetrically offer left seam gap 131, and the right both sides of short-circuit wall 23 symmetrically offer the right side
Gap 231, left seam gap 131 and right seam gap 231 are symmetrical arranged, and left seam gap 131 and right seam gap 231 are vertical with reflection floor 3.It is excellent
Choosing, the left short-circuit wall 13 of the present embodiment and right short-circuit wall 23 are 22mm*21.6mm rectangles.Left seam gap 131 and right seam gap 231
It is 1mm*5mm rectangle.Gap is opened up in short-circuit wall, low-frequency vibrator size can be reduced, realizes that antenna element is minimized, and
When LTE band operation of the antenna element in 2.59GHz-2.69GHz, with certain filter effect, its can be suppressed right
The interference of other antennas of 4G.
Further, with reference to Fig. 1 and Fig. 2, in the High-gain dual-frequency antenna element, feed strip 4 is class n shape structures, feed
Band 4 includes the first feed strip 41, the second feed strip 42 and the 3rd feed strip 43, and the first feed strip 41 and right short-circuit wall 23 are relatively flat
Row setting forms third space M3, and the 3rd feed strip 43 forms the second gap M2, second with opposing parallel set of left short-circuit wall 13
The two ends of feed strip 42 are connected with the top of the first feed strip 41 and the top of the 3rd feed strip 43 respectively, and the second feed strip 42 is hung down
Directly in left short-circuit wall 13 and right short-circuit wall 23.The bottom of first feed strip 41 and the bottom of the 3rd feed strip 43 and reflection floor 3 it
Between have empty avoiding gap.The present embodiment is preferred, and feed strip 4 is made up of metal material.
It is preferred that, in the present embodiment, the second gap M2 is 4.7mm, and third space M3 is 0.72mm, and the first feed strip 41 is high
Degree is that 20.9mm, width are 3.1mm, and the length of the second feed strip 42 is that 6.8mm, width are 4.6mm, and the height of the 3rd feed strip 43 is
15.9mm, width are 3.1mm.Except the feed strip of the class n font structures of the present embodiment, feed strip can also be grading structure,
Such as trapezium structure, the present embodiment designs feed strip between two short-circuit walls, can effectively expand the frequency range of the antenna element
Scope, improves the matching of antenna element bandwidth internal impedance.In practical application, feed strip can use support to fix.
It is preferred that, in the present embodiment, reflection floor 3 for square, it is clear that, reflection floor can also be rectangle or
Rectangular conductor chamber with flange.It is more highly preferred to, in the present embodiment, reflection floor 3 is made up of metal material.
The High-gain dual-frequency antenna element of the present invention, using being stacked, the upper strata high frequency oscillator of complementary structure and lower floor
Low-frequency vibrator structure, the high frequency oscillator on upper strata also has to guide into and posted while high frequency radiation body is served as to lower floor's low-frequency vibrator
Raw effect, improves the gain performance of low-frequency range.
In the present embodiment, high frequency oscillator and low-frequency vibrator can be made of die casting oscillator or metal clips.
Fig. 5 is a kind of oscillogram of High-gain dual-frequency antenna element return loss of the invention, as shown in figure 5, the present embodiment,
Antenna element echo reflection in 2.4GHz-2.47GHz and 3.3GHz-4GHz frequency range is less than -15dB.LTE's
There is trap characteristic in 2.5GHz-2.7GHz frequency ranges, prevent from interfering other LTE base station antennas and its unit.
Fig. 6 is E, H side gains directional diagram schematic diagram of a kind of High-gain dual-frequency antenna element of the invention in frequency 3.5GHz,
As shown in fig. 6, the antenna element is in 3.5GHz frequencies, working gain meets 8dBi, when gain is more than 3dBi, and beam angle surpasses
Cross 80 degree.E faces and H faces directional image method are equivalent to gain beam angle.
Fig. 7 is E, H side gains directional diagram schematic diagram of a kind of High-gain dual-frequency antenna element of the invention in frequency 2.4GHz,
As shown in fig. 7, the antenna is in 2.4GHz frequencies, working gain meets 9dBi, when gain is more than 3dBi, and beam angle is more than 75
Spend, close to 80 degree.E faces and H faces directional image method are equivalent to gain beam angle.
A kind of High-gain dual-frequency antenna element, using being stacked, the upper strata high frequency oscillator and lower floor's low frequency of complementary structure
Oscillator structure, effectively increases the gain of low frequency, and while realizing high-gain requirement, beam angle is more than 80 degree, coverage
Extensively.Gap of the High-gain dual-frequency antenna element between two short-circuit walls sets feed strip, obtains impedance matching, it is ensured that antenna
Unit echo reflection in 2.4GHz-2.47GHz and 3.3GHz-4GHz frequency range is less than -15dB, voltage standing wave ratio VSWR
Less than 1.5.
Above is the preferable implementation to the present invention is illustrated, but the invention is not limited to the implementation
Example, those skilled in the art can also make a variety of equivalent variations or replace on the premise of without prejudice to spirit of the invention
Change, these equivalent deformations or replacement are all contained in the application claim limited range.
Claims (9)
1. a kind of High-gain dual-frequency antenna element, it is characterised in that it includes irradiation structure group, feed strip and reflection floor, institute
State irradiation structure group conducting is connected with the reflection floor and form electromagnetic dipole, the irradiation structure group includes symmetrically arranged
Left irradiation structure and right irradiation structure, the left irradiation structure include left radiant body and left short-circuit wall, and the left radiant body is set
Include right radiant body and right short-circuit wall in the top of the left short-circuit wall and the right irradiation structure vertical with left short-circuit wall, it is described
Right radiant body be arranged on the top of the right short-circuit wall and with the bottom of the left short-circuit wall of the vertical parallel setting of right short-circuit wall
It is connected with the bottom of the right short-circuit wall with the reflection floor perpendicular, the left short-circuit wall and the right short-circuit wall are relatively flat
Row is set, and has the first gap between the left short-circuit wall and the right short-circuit wall, and first gap is provided with the feed strip,
There is the second gap between the feed strip and the left short-circuit wall, have the 3rd between the feed strip and the right short-circuit wall
Gap, the left radiant body includes the left high frequency oscillator and left low-frequency vibrator for being stacked and being parallel to each other, the right radiant body
Including the right high frequency oscillator for being stacked and being parallel to each other and right low-frequency vibrator, left high frequency oscillator and right high frequency the oscillator difference
The top of the left low-frequency vibrator and the top of right low-frequency vibrator are arranged on, the left high frequency vibrating attached bag includes left high frequency radiation antenna
Line areas and left high frequency vibrating subwindow, the left low-frequency vibrator include left low frequency radiation antenna traces area and left low-frequency vibrator window
Mouthful, the left high frequency radiation antenna traces area and left high frequency vibrating subwindow respectively with the left low-frequency vibrator window and left low frequency spoke
Antenna traces area Corresponding matching is penetrated so that the left high frequency oscillator and the left low-frequency vibrator formation complementary structure, the right high frequency
Oscillator includes right high frequency radiation antenna traces area and right high frequency vibrating subwindow, and the right low-frequency vibrator includes right low frequency radiation antenna
Line areas and right low-frequency vibrator window, the right high frequency radiation antenna traces area and right high frequency vibrating subwindow are low with the right side respectively
Frequency vibration subwindow and right low frequency radiation antenna traces area Corresponding matching cause the right high frequency oscillator and the right low-frequency vibrator shape
Into complementary structure.
2. a kind of High-gain dual-frequency antenna element according to claim 1, it is characterised in that the left high frequency radiation antenna
Line areas and the right high frequency radiation antenna traces area are in n fonts, and the left high frequency radiation antenna traces area includes left high frequency
Connect band, the left high frequency connect band is in L fonts, and the left high frequency connect band includes orthogonal left high frequency parallel connecting strips
With left frequency vertical connect band, the left high frequency radiation antenna traces area also includes in the same direction based on left high frequency parallel connecting strips side
The two left high frequencies stretched out are raised one's arm, the both sides of the left frequency vertical connect band respectively with the left high frequency parallel connecting strips one
Side and the connection of the top of the left short-circuit wall；The right high frequency radiation antenna traces area includes right high frequency connect band, the right height
Frequency connect band is in L fonts, and the right high frequency connect band includes orthogonal right high frequency parallel connecting strips and right frequency vertical and connected
Tape splicing, the right high frequency radiation antenna traces area also includes the two right height stretched out in the same direction based on right high frequency parallel connecting strips side
Frequency vibration arm, the both sides of right frequency vertical connect band side respectively with the right high frequency parallel connecting strips and the right short circuit
The top connection of wall.
3. a kind of High-gain dual-frequency antenna element according to claim 2, it is characterised in that the left low frequency radiation antenna
Line areas and the right low frequency radiation antenna traces area are in E fonts, and the left low frequency radiation antenna traces area includes left low frequency
Connect band and the three left low frequencies stretched out in the same direction based on left low frequency connect band are raised one's arm, and the left low frequency is raised one's arm including the first left low frequency
Raise one's arm, the second left low frequency is raised one's arm and raised one's arm with the 3rd left low frequency, the first left low frequency is raised one's arm and the 3rd left low frequency is raised one's arm point
The both sides that the described second left low frequency is raised one's arm are not distributed in, and the left low frequency connect band, the first left low frequency are raised one's arm, left short-circuit wall and
Three left low frequencies are in turn connected to form right low frequency radiation antenna traces area described in ring-type of remaining silent before and after raising one's arm include right low frequency connect band
Raised one's arm with based on three right low frequencies that right low frequency connect band side is stretched out in the same direction, the right low frequency is raised one's arm to shake including the first right low frequency
Arm, the second right low frequency are raised one's arm and raised one's arm with the 3rd right low frequency, and the first right low frequency is raised one's arm and the 3rd right low frequency is raised one's arm difference
The both sides that the described second right low frequency is raised one's arm are distributed in, the right low frequency connect band, the first right low frequency are raised one's arm, right short-circuit wall and the 3rd
Right low frequency is in turn connected to form ring-type of remaining silent before and after raising one's arm.
4. a kind of High-gain dual-frequency antenna element according to claim 3, it is characterised in that the feed strip is class n-type
Structure, the feed strip includes the first feed strip, the second feed strip and the 3rd feed strip, and first feed strip and the right side are short
Wall opposing parallel setting in road forms third space, and the 3rd feed strip forms second with opposing parallel set of the left short-circuit wall
Gap, the two ends of second feed strip connect with the top of first feed strip and the top of the 3rd feed strip respectively
Connect, second feed strip perpendicular to the left short-circuit wall and the right short-circuit wall, the feed strip and the reflection floor it
Between have empty avoiding gap.
5. a kind of High-gain dual-frequency antenna element according to claim 4, it is characterised in that the left frequency vertical connection
Take and be provided with left window, right window, the left window and institute are provided with right the second high frequency of frequency vertical connect band joint face
Right window is stated to be symmetrical arranged.
6. a kind of High-gain dual-frequency antenna element according to claim 5, it is characterised in that the left short-circuit wall both sides pair
Title offers left seam gap, and the right short-circuit wall both sides symmetrically offer right seam gap, and the left seam gap is symmetrically set with the right seam gap
Put, the left seam gap and the right seam gap with the reflection floor perpendicular.
7. a kind of High-gain dual-frequency antenna element according to claim 6, it is characterised in that the reflection floor is rectangular
Shape or the rectangle conductor chamber with flange.
8. a kind of High-gain dual-frequency antenna element according to any one of claim 1 to 7, it is characterised in that the reflection
Floor is made up of metal material.
9. a kind of High-gain dual-frequency antenna element according to claim 8, it is characterised in that the feed strip is by metal material
Material is made.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710465169.8A CN107248613B (en) | 2017-06-19 | 2017-06-19 | High-gain dual-frequency antenna unit |
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| CN201710465169.8A CN107248613B (en) | 2017-06-19 | 2017-06-19 | High-gain dual-frequency antenna unit |
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| CN107248613A true CN107248613A (en) | 2017-10-13 |
| CN107248613B CN107248613B (en) | 2023-07-07 |
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| CN201710465169.8A Active CN107248613B (en) | 2017-06-19 | 2017-06-19 | High-gain dual-frequency antenna unit |
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| CN110401026A (en) * | 2019-06-10 | 2019-11-01 | 西安电子科技大学 | A kind of magnetoelectricity dipole filter antenna with approximate ellipse filter response |
| WO2020134473A1 (en) * | 2018-12-29 | 2020-07-02 | 瑞声声学科技(深圳)有限公司 | Antenna-in-package system and mobile terminal |
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| CN107248613B (en) | 2023-07-07 |
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