CN107359420A - Miniaturization high-gain two-band circular polarized antenna - Google Patents
Miniaturization high-gain two-band circular polarized antenna Download PDFInfo
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- CN107359420A CN107359420A CN201710578549.2A CN201710578549A CN107359420A CN 107359420 A CN107359420 A CN 107359420A CN 201710578549 A CN201710578549 A CN 201710578549A CN 107359420 A CN107359420 A CN 107359420A
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/10—Resonant slot antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- 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
-
- 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
Abstract
The invention discloses a kind of simple in construction, miniaturization can be realized, two-band, high-gain and right-handed circular polarization, increase the bandwidth of antenna and improve the Miniaturization high-gain two-band circular polarized antenna of gain, the Miniaturization high-gain two-band circular polarized antenna includes dielectric substrate, radiant body and U-shaped metal back of the body chamber；Be provided with from radiant body center to four edges and extend on the radiant body, and along using the center of radiant body as the center of circle round week equally distributed first T-slot hole, the second T-slot hole, the 3rd T-slot hole and the 4th T-slot hole；The first rectangular shaped slot and the second rectangular shaped slot are provided with the diagonal of the radiant body, the first T-shaped radiant body is provided with first rectangular shaped slot, the second T-shaped radiant body is provided with second rectangular shaped slot.The requirement of military communication antenna for mobile phone can be met using the Miniaturization high-gain two-band circular polarized antenna, communication handset aerial head is conveniently positioned over, realizes flip.
Description
Technical field
The present invention relates to antenna technical field, especially a kind of resonance is in the miniaturization of the two-band of big S frequency ranges up-downgoing
High-gain dual-frequency section circular polarized antenna.
Background technology
It is known：Antenna serves as transmitting and receives the key player of electromagnetic wave in a wireless communication system, except that can have
Effect radiation is received outside electromagnetic wave, also carries high frequency electric (guided wave energy) being converted to radio magnetic wave or wireless electromagnetic
Ripple is converted to the work of high frequency electric (guided wave energy).Antenna undoubtedly assume responsibility for most basic and most indispensable important angle
Color, the quality of its performance will directly affect the quality of whole communication system.
With the development of the communication technology, linear polarization mode is far from meeting job requirement, and the application of circular polarized antenna
Sometimes then seem extremely important, circular polarized antenna can receive the incoming wave of any polarization, and its radiated wave also can be by arbitrarily polarizing
Antenna receive, misty rain interference and anti-multipath reflection can be suppressed, therefore can be applied to communicate, radar, the field such as electronic countermeasure
In, have a wide range of applications.In recent years, with the fast development of System of Satellite Position and Communication (such as GPS, the Big Dipper), entelechy
Change paster antenna to get growing concern for.Circularly-polarized patch antenna have small size, in light weight, low section, it is easy to process,
The features such as to weather environment strong applicability.
Realizing the miniaturization of antenna has various ways, there is the material by using high-k, has and is opened on paster respectively
The groove of kind shape；In order to realize the circular polarisation of antenna, there are single feedback method and double-fed or more feedback methods for feeding classification, although double-fed
It can increase circular polarisation bandwidth with more feedbacks, but significantly add the complexity of feeding network, be unfavorable for realizing day
The miniaturization of line；In order to obtain two-band, more using double-deck microband paste, but double-layer paster adds cost of manufacture and difficulty.
The content of the invention
The technical problems to be solved by the invention, which are to provide one kind, can realize miniaturization, two-band, high-gain and the right side
Hand circular polarization, increase the bandwidth of antenna and improve the Miniaturization high-gain two-band circular polarized antenna of gain.
The technical solution adopted for the present invention to solve the technical problems is：The Miniaturization high-gain two-band circular polarisation day
Line, including dielectric substrate, radiant body and U-shaped metal back of the body chamber；The radiant body is printed on dielectric base in plane
The upper surface of plate；
The radiant body is rectangle, is provided with from radiant body center to four edges and extends on the radiant body, and along with spoke
The center of beam for the center of circle round week equally distributed first T-slot hole, the second T-slot hole, the 3rd T-slot hole and the 4th T
Shape slotted eye；The first T-slot hole, the second T-slot hole, the 3rd T-slot hole and the 4th T-slot hole include horizontal slotted eye and erected
To slotted eye, the horizontal slotted eye is parallel with the sideline of radiant body, and the vertical slotted eye is vertical with the sideline of radiant body；
The first rectangular shaped slot and the second rectangular shaped slot, first rectangular channel are provided with the diagonal of the radiant body
The first T-shaped radiant body is provided with hole, the second T-shaped radiant body is provided with second rectangular shaped slot；
The first T-shaped radiant body includes the first narrow side radiation micro-strip and the first broadside radiation micro-strip；Described first is wide
One end of micro-strip is radiated when radiation micro-strip is narrow positioned at first；
The width that the first narrow side radiation micro-strip has is less than the width of the first rectangular shaped slot, the first broadside radiation
There is spacing between one end of micro-strip and the first rectangular shaped slot；
The second T-shaped radiant body includes the second narrow side radiation micro-strip and the second broadside radiation micro-strip；Described second is wide
One end of micro-strip is radiated when radiation micro-strip is narrow positioned at second；
The width that the second narrow side radiation micro-strip has is less than the width of the second rectangular shaped slot, the second broadside radiation
There is spacing between one end of micro-strip and the second rectangular shaped slot；
The U-shaped metal back of the body chamber is arranged on the underface of dielectric substrate, and the U-shaped metal back of the body intracavitary is provided with feed
Structure；The feed structure electrically connects with radiant body.
Further, the first T-slot hole, the second T-slot hole, the 3rd T-slot hole and the 4th T-slot hole include horizontal stroke
To slotted eye and vertical slotted eye, the horizontal slotted eye with width and vertical slotted eye with width it is unequal；And the transverse direction
Slotted eye with width be more than vertical slotted eye with width.
Further, it is right two-by-two in the first T-slot hole, the second T-slot hole, the 3rd T-slot hole and the 4th T-slot hole
The equal length of the vertical slotted eye of the slotted eye of title, the length of asymmetric then vertical slotted eye and the length of horizontal slotted eye not phase
Deng.
Further, the width having and identical length of first rectangular shaped slot and the second rectangular shaped slot are same.
Further, the width and length that the first broadside radiation micro-strip and the second broadside radiation micro-strip have correspond to phase
Deng；Spacing between first broadside radiation micro-strip and one end of the first rectangular shaped slot and second broadside radiation micro-strip with
Spacing between one end of second rectangular shaped slot is equal.
Further, the width that the first broadside radiation micro-strip and the second broadside radiation micro-strip have is equal；Described
One broadside radiates the length that micro-strip and the second broadside radiation micro-strip have.
Further, the U-shaped metal back of the body chamber has bottom plate and two relative side walls；The plate upper surface and radiation
0.01 λ is smaller than between body, λ is low frequency air wavelength.
Preferably, the feed structure of the U-shaped metal back of the body intracavitary includes the feed being arranged on the bottom plate of U-shaped metal back of the body chamber
Probe；The feed probes and radiant body coaxial feed.
The beneficial effects of the invention are as follows：Miniaturization high-gain two-band circular polarized antenna of the present invention, due in spoke
It is provided with from radiant body center to four edges and extends on beam, and edge being uniformly distributed in round week using the center of radiant body as the center of circle
The first T shapes slotted eye, the second T-slot hole, the 3rd T-slot hole and the 4th T-slot hole；Phase is excited by the length for adjusting gap
90 degree of position difference, the equal both of which of amplitude is to realize circular polarisation.
Miniaturization high-gain two-band circular polarized antenna of the present invention compared with prior art, has following features：
1) single layer radiation paster, the size one of square-shaped radiation paster, radiation patch and floor is printed on above medium substrate
Sample.So as to simplify result, miniaturization is advantageously implemented.
2) four T-slots are opened from the outward direction of center along the four edges direction of single layer radiation paster, T-slot extends
Current path, the purpose of miniaturization is reached；Four T-slots are symmetrical two-by-two, and are mutually perpendicular to, symmetrical position
Be advantageous to the formation of quadrature current；According to the characteristic of circular polarisation, by the length for adjusting T-slot so that 90 degree of electric current be present
Phase difference, good impedance matching can be realized by adjusting the width of T-slot.Length on the vertical direction of two pairs of T-shaped groove not phase
Deng, wherein low frequency when, electric current flows mainly along the longer T-slot of length, and in high frequency, electric current is shorter mainly along length
T shapes groove flows.Right-handed circular polarization is realized so as to increase the bandwidth of antenna and improve gain.
3) two equal-sized rectangular channels, path of the electric current along rectangular channel are opened along the cornerwise direction of single layer radiation
Flowing, so as to radiated electromagnetic wave.
4) a pair of T-shaped radiant bodies are added inside two rectangular channels equal in magnitude, the electric current of antenna is along T-shaped radiant body stream
It is dynamic.At the position of T-shaped head, coupling is more preferable, realizes more preferable impedance matching.Further, the length in a perpendicular direction for T-shaped radiant body
Spend unequal, the distribution of its different effect length electric current.When low frequency, guiding electric current is along T-slot length and diagonally
Rectangular channel the most long path flowing of total length, during high frequency, the rectangular channel of guiding electric current along T-slot length and diagonally
Total length it is most short path flowing.
5) further, the dielectric constant of dielectric substrate uses 10.2 Rogers's sheet material, has reached reduction antenna
The purpose of size.
6) chamber further, is carried on the back using U-shaped metal, in the both sides metal-loaded wall of radiant body, beneficial to the radiation edge of antenna
In the vertical direction of radiation patch；The sheet metal of both sides and floor form semi-enclosed U-shaped wire chamber, are pasted on floor and radiation
Air is filled between the bottom of the medium substrate of piece, although the dielectric constant of medium substrate is higher, equivalent dielectric is normal
Number only 2, so antenna can obtain higher gain, and the impedance matching of antenna is advantageously implemented using cavity body structure
With the size for reducing antenna.
7) further, the volume of antenna could be arranged to 30mmX30mmX5mm, and overall dimensions are all smaller；It is positioned over
Mobile phone can receive the uplink and downlink frequency range of S frequency ranges simultaneously.
To sum up, Miniaturization high-gain two-band circular polarized antenna of the present invention, using single feedback method feed, in micro-strip spoke
Penetrate on piece and drive the micro-strip circular polarized antenna in M shape gap, by adjusting the length in gap, i.e. the narrow radiant body of T-shaped radiant body
Length, excites phase to differ 90 degree, and the equal both of which of amplitude is to realize circular polarisation.By being loaded below radiation patch
U-shaped cavity, miniaturization is finally realized, two-band, the right-handed circular polarization antenna of high-gain, meets application demand in practice.
Brief description of the drawings
Fig. 1 is the stereogram of miniaturization High-gain dual-frequency section circular polarized antenna of the embodiment of the present invention；
Fig. 2 is the front view of miniaturization High-gain dual-frequency section circular polarized antenna of the embodiment of the present invention；
Fig. 3 is the top view of miniaturization High-gain dual-frequency section circular polarized antenna of the embodiment of the present invention；
Fig. 4 is the signal of feed structure on the bottom plate of miniaturization High-gain dual-frequency section circular polarized antenna of the embodiment of the present invention
Figure；
Fig. 5 is the frequency band range in double-frequency resonance of miniaturization High-gain dual-frequency section circular polarized antenna of the embodiment of the present invention
Interior, 1.98GHz-2.01GHz and 2.17GHz-2.2GHz are satisfied by S11≤ -10dBi, the relative bandwidth of antenna reach 3%,
Compared to the schematic diagram for the impedance bandwidth that miniaturization individual layer circular polarization microstrip antenna only has 1%；
Fig. 6 is miniaturization of embodiment of the present invention High-gain dual-frequency section circular polarized antenna in frequency 1.98GHz E faces direction
Figure；
Fig. 7 is miniaturization of embodiment of the present invention High-gain dual-frequency section circular polarized antenna in frequency 2.17GHz E faces direction
Figure；
Indicated in figure：1- dielectric substrates, 2- radiant bodies, the first T-slots of 21- hole, 22- the second shape slotted eyes, 23- the 3rd
Shape slotted eye, the shape slotted eyes of 24- the 4th, the rectangular shaped slots of 25- first, the rectangular shaped slots of 26- second, 3-U types metal back of the body chamber, 31- feeds are visited
Pin, 32- side walls, 33- bottom plates, 4- the first T-shaped radiant bodies, the first narrow sides of 41- radiation micro-strip, the broadsides of 42- first radiation micro-strip,
5- the second T-shaped radiant bodies, the second narrow sides of 51- radiation micro-strip, the broadsides of 52- second radiation micro-strip, the feed structure on 6- bottom plates,
61- feed placements.
Embodiment
The present invention is further described with reference to the accompanying drawings and examples.
As shown in Figures 1 to 7, Miniaturization high-gain two-band circular polarized antenna of the present invention, including dielectric
Substrate 1, radiant body 2 and U-shaped metal back of the body chamber 3；The radiant body 1 is in the plane upper table for being printed on dielectric substrate 1
Face；
The radiant body 1 is rectangle, be provided with the radiant body 1 from the center of radiant body 1 to four edges extend, and along with
The center of radiant body 1 for the center of circle round week equally distributed first T-slot hole 21, the second T-slot hole 22, the 3rd T-slot hole
23 and the 4th T-slot hole 24；The first T-slot hole 21, the second T-slot hole 22, the 3rd T-slot hole 23 and the 4th T shape slotted eyes
24 include horizontal slotted eye and vertical slotted eye, and the horizontal slotted eye is parallel with the sideline of radiant body 1, the vertical slotted eye and radiation
The sideline of body 1 is vertical；
It is provided with the first rectangular shaped slot 25 and the second rectangular shaped slot 26 on the diagonal of the radiant body 1, described first
The first T-shaped radiant body 4 is provided with rectangular shaped slot 25, the second T-shaped radiant body 5 is provided with second rectangular shaped slot 26；
The first T-shaped radiant body 4 includes the first narrow side radiation micro-strip 41 and first broadside radiation micro-strip 42；Described
One broadside radiation micro-strip 42 is positioned at one end of the first narrow side radiation micro-strip 41；
The width that the first narrow side radiation micro-strip 41 has is less than the width of the first rectangular shaped slot 25, first broadside
There is spacing between one end of the radiation rectangular shaped slot 25 of micro-strip 42 and first；
The second T-shaped radiant body 5 includes the second narrow side radiation micro-strip 51 and second broadside radiation micro-strip 52；Described
Two broadsides radiation micro-strip 52 is positioned at one end of the second narrow side radiation micro-strip 51；
The width that the second narrow side radiation micro-strip 51 has is less than the width of the second rectangular shaped slot 26, second broadside
There is spacing between one end of the radiation rectangular shaped slot 26 of micro-strip 52 and second；
The U-shaped metal back of the body chamber 3 is arranged on the whole decentralization of dielectric substrate 1, is provided with the U-shaped metal back of the body chamber 3
Feed structure；The feed structure electrically connects with radiant body 2.
Specifically, the radiant body 2 can be made and in radiation patch tin plating above of copper product.
During use：
Specifically, described Miniaturization high-gain two-band circular polarized antenna, by be provided with M shape slotted eye radiant body 2,
Dielectric substrate 1, U-shaped metal back of the body chamber 3 form.The radiant body 2 is made up and tin plating above of copper product, in plane print
It is formed on the upper surface of dielectric substrate 1.Radiant body 1 can plate the metal materials such as gold, silver, tin, but consider performance with into
This, the radiant body 1 is prepared using copper product.In order to realize the small size performance of antenna, using the sheet material of high-k, significantly
Reduce the size of antenna.By gap of being cracked in radiation patch, the current path of extension antenna further reduces antenna
Size.4 T-slots are opened from the center of radiation patch to surrounding, wherein the T-slot perpendicular to two parallel radiation sides is right two-by-two
Claim, equal in magnitude (21 and 22,23 and 24).Length into the vertical direction of 45 degree of two T-slots is unequal
Two equirotal rectangular shaped slots, i.e. the first rectangular shaped slot 25 and second are opened on the diagonal of radiation patch
Rectangular shaped slot 26, this ensure that equal along the current amplitude of groove；And the width of rectangular channel is more than the vertical slot in T-slot hole
The width in hole.
According to the principle of slot antenna, the first square in Miniaturization high-gain two-band circular polarized antenna of the present invention
The rectangular shaped slot 26 of shape slotted eye 25 and second is equivalent to the monopole of commensurateiy wide, when the width of monopole is wider, its impedance band
Wider, so the width of rectangular channel is bigger, its impedance matching bandwidth is wider, but limitation due to antenna size size and micro-
Characteristic with antenna is understood, in order to obtain most wide impedance bandwidth, finally optimizes first rectangular shaped slot 25 and second
The desired value of the width of rectangular shaped slot 26 is to obtain wider bandwidth.
In order to obtain two-band, four T-slots of optimization are the first T-slot hole 21, the second T-slot hole 22, the 3rd T-slot hole
23 and the 4th T-slot hole 24 horizontal slotted eye and vertical slotted eye length.
Specifically, during low-frequency range, electric current flows along the most long path of T-slot length, and during high band, electric current is along T-shaped
The most short path flowing of slot length.
It is larger to impedance matching adjustment effect to adjust the transverse groove hole width of T-slot, a certain degree of its width of increase can
To increase the bandwidth of antenna.The length of the vertical slotted eye of T-slot has a great influence to circular polarisation, mainly adjusts horizontal slotted eye and vertical
The length of slotted eye obtains preferable axle ratio characteristic.The length of the vertical slotted eye of the regulation two pairs of T-shaped groove vertical with two pairs of radiating sides
The frequency difference of two frequency ranges can be adjusted.When adjusting T-slot, in order to keep the amplitude of electric current equal, while symmetrical T-shaped is adjusted
The length and width of groove, the change that corresponding each parameter is consistent.
As shown in figure 3, the first T-shaped radiant body 4 is set in first rectangular shaped slot 25, in second rectangular shaped slot
Second T-shaped radiant body 5 is set in 26；The first T-shaped radiant body 4 and the second T-shaped radiant body 5 are radiated using T-shaped micro-strip
Piece；The T-shaped micro-strip radiation fin is made up of two parts, is wide rectangular microstrip line and narrow rectangular microstrip line respectively, in accompanying drawing 3
41- first is narrow, and when radiating micro-strip and 51 second is narrow, to radiate micro-strip be narrow rectangular microstrip line；The broadsides of 42- first in accompanying drawing 3
It is wide rectangular microstrip line to radiate micro-strip and 52 second broadsides radiation micro-strip.When one end of wide rectangular microstrip line and groove is more leaned on
Closely, its coupling is bigger；Impedance bandwidth is bigger.Antenna is fed at the center of micro-strip radiation fin, electric current is from center along T
Type micro-strip radiation fin flows to four direction, because rectangular channel and T-shaped microstrip line are mutually perpendicular to two-by-two, so this structure is beneficial to
The formation of quadrature current, so as to form circular polarisation, the metal of rectangle groove edge passes through the spacing between T-shaped sheet metal and rectangular channel
Couple current.
Wherein, when the length of two narrow side microstrip lines of two pairs of T-shaped micro-strip radiation fins of composition is unequal, passes through and adjust two gold
The length of category bar can realize that electric current differs 90 degree to realize circular polarisation, in above-mentioned described many factors, narrow side micro-strip
Impedance matching of the length difference of the length of line and two narrow side microstrip lines on antenna influences maximum, and the length of T-shaped micro-strip radiation fin connects
When being bordering on rectangular channel length scale, groove edge is almost without the coupling of electric current, and the sum on two T-shaped micro-strip radiation fins
The electric current very little of groove edge, therefore gain is also very low, and impedance matching property is very poor；It is suitable long when not being optimized to one
When spending poor, impedance matching performance is poor.When antenna resonance is in low frequency, ripple when its current path total length is approximately low-frequency resonant
Long half, when antenna resonance is in high frequency, the half of wavelength when its current path total length is approximately high-frequency resonant.
As shown in figure 3, the length of the first narrow side radiation micro-strip 41 of the first T-shaped radiant body 4 is L1, the second T-shaped spoke
The length of second narrow side radiation micro-strip 51 of beam 5 is L2；In order to realize right-handed circular polarization, L1<L2, if wanting to realize left-handed circle
Polarize, then L1>L2, and L1-L2 numerical value is about 0.02 λ；λ is low frequency air wavelength.
Further, in order to realize the miniaturization of antenna, specifically, dielectric substrate 1 uses dielectric constant as 10.2
Rogers's high-k sheet material, thickness 0.635mm, but the sheet material of high-k is usually associated with aerial band width
And the drawbacks of low gain, therefore, in order to increase the bandwidth of antenna and increase the gain of antenna, by insulation medium board 1 and U-shaped metal
Air is filled between the bottom plate that back of the body chamber 3 has, can not only adjust impedance matching, the air dielectric of introducing adds dielectric
For plate equivalent to relative dielectric constant is reduced, last equivalent relative dielectric constant is 2.03.Here the bottom of dielectric and
The distance between floor is 5mm, so equivalent to smooth type metal on the dielectric-slab that the dielectric constant of antenna is 2.03
Microband paste, dielectric constant is low and the thickness of dielectric-slab is big, has relative to using the Miniaturized Microstrip Antennas of high-k
In the case of narrow-band and low gain, bandwidth and the gain of antenna are largely improved.Antenna is positioned over military communication hand
Machine top, and flip form is fabricated to, metal-loaded back of the body chamber can allow antenna to be stably placed in mobile phone top, and reduce military
The interference of the external circuit of communication handset.In order to reduce the complexity of structures of antenna, with super glue by insulation medium board and U
Shape metal back of the body chamber cements.Feed structure is fed using metal probe, on the one hand can obtain good impedance matching, the opposing party
Face, the weld welding of probe feed is intact can to stablize microband paste and metal back of the body chamber.
Effect is embodied as shown in Fig. 5 Fig. 7：Fig. 5 is the standing wave test curve figure of antenna of the embodiment of the present invention.Such as figure
Shown in 5, in the frequency band range of double-frequency resonance, 1.98GHz-2.01GHz and 2.17GHz-2.2GHz are satisfied by S11≤-
10dBi, the relative bandwidth of antenna reach 3%, compared to the impedance bandwidth that miniaturization individual layer circular polarization microstrip antenna only has 1%, adopt
The impedance bandwidth of antenna is greatly added with the structure；Fig. 6 and Fig. 7 is antenna respectively in frequency 1.98GHz and 2.17GHz
E faces directional diagram；The gain of antenna is respectively 3.32dB and 3.15dB, meets the needs of engineer applied.
In order to preferably realize impedance matching, specifically, the first T-slot hole 21, the second T-slot hole 22, the 3rd T-shaped
The T-slot hole 24 of slotted eye 23 and the 4th includes horizontal slotted eye and vertical slotted eye, the width and vertical slot that the horizontal slotted eye has
The width that hole has is unequal；And the horizontal slotted eye with width be more than vertical slotted eye with width.
In order to realize 90 phase difference；Specifically, the first T-slot hole 21, the second T-slot hole 22, the 3rd T-slot hole
23 and the 4th equal length of the vertical slotted eye of symmetrical slotted eye two-by-two in T-slot hole 24, the length of asymmetric then vertical slotted eye
The length of degree and horizontal slotted eye is unequal.Specifically, the length of the vertical slotted eye in the first T-slot hole 21 and the 3rd T-slot hole 23
Spend equal；The equal length of the vertical slotted eye in the second T-slot hole 22 and the 4th T-slot hole 24；First T-slot hole 21 and the 2nd T
The length of the vertical slotted eye of shape slotted eye 22 and the length of horizontal slotted eye are unequal；Second T-slot hole 22 and the 3rd T-slot hole
The length of 23 vertical slotted eye and the length of horizontal slotted eye are unequal；3rd T-slot hole 23 and the 4th T-slot hole 24 it is vertical
The length of slotted eye and the length of horizontal slotted eye are unequal；The length of the vertical slotted eye in the 4th T-slot hole 24 and the first T-slot hole 21
The length of degree and horizontal slotted eye is unequal.
In order to encourage the equal electric current of amplitude, specifically, the tool of the rectangular shaped slot 26 of first rectangular shaped slot 25 and second
Some width and identical length are same.
In order to obtain equal couple current, specifically, first broadside radiation micro-strip 42 and second broadside radiation is micro-
With 52 width having and length correspondent equal；One end of first broadside radiation rectangular shaped slot 25 of micro-strip 42 and first it
Between spacing and second broadside radiation micro-strip 52 it is equal with the spacing between one end of the second rectangular shaped slot 26.
90 degree are differed in order to obtain two current phases, specifically, first broadside radiates the broadside spoke of micro-strip 42 and second
It is equal to penetrate the width that micro-strip 52 has；The length that the first broadside radiation micro-strip 42 and second broadside radiation micro-strip 52 has is not
Deng.
In order to preferably realize impedance matching and improve bandwidth and improvement axle ratio characteristic, specifically, the U-shaped metal back of the body
Chamber 3 has bottom plate 33 and two relative side walls 32；0.01 is smaller than between the upper surface of bottom plate 33 and radiant body 2
λ, λ are low frequency air wavelength.
In order that obtaining, feeding classification is simple, and further, the feed structure in the U-shaped metal back of the body chamber 3 includes being arranged on U
Feed probes 31 on the bottom plate 33 of type metal back of the body chamber 3；The feed probes 31 and the coaxial feed of radiant body 2.Using coaxial feed
Electricity, mode is simple, and easily realizes.
In summary, Miniaturization high-gain two-band circular polarized antenna of the present invention compared with prior art, has
Following features：
1) single layer radiation paster, the size one of square-shaped radiation paster, radiation patch and floor is printed on above medium substrate
Sample.So as to simplify result, miniaturization is advantageously implemented.
2) four T-slots are opened from the outward direction of center along the four edges direction of single layer radiation paster, T-slot extends
Current path, the purpose of miniaturization is reached；Four T-slots are symmetrical two-by-two, and are mutually perpendicular to, symmetrical position
Be advantageous to the formation of quadrature current；According to the characteristic of circular polarisation, by the length for adjusting T-slot so that 90 degree of electric current be present
Phase difference, good impedance matching can be realized by adjusting the width of T-slot.Length on the vertical direction of two pairs of T-shaped groove not phase
Deng, wherein low frequency when, electric current flows mainly along the longer T-slot of length, and in high frequency, electric current is shorter mainly along length
T shapes groove flows.Right-handed circular polarization is realized so as to increase the bandwidth of antenna and improve gain.
3) two equal-sized rectangular channels, path of the electric current along rectangular channel are opened along the cornerwise direction of single layer radiation
Flowing, so as to radiated electromagnetic wave.
4) a pair of T-shaped radiant bodies are added inside two rectangular channels equal in magnitude, the electric current of antenna is along T-shaped radiant body stream
It is dynamic.At the position of T-shaped head, coupling is more preferable, realizes more preferable impedance matching.Further, the length in a perpendicular direction for T-shaped radiant body
Spend unequal, the distribution of its different effect length electric current.When low frequency, guiding electric current is along T-slot length and diagonally
Rectangular channel the most long path flowing of total length, during high frequency, the rectangular channel of guiding electric current along T-slot length and diagonally
Total length it is most short path flowing.
5) further, the dielectric constant of dielectric substrate uses 10.2 Rogers's sheet material, has reached reduction antenna
The purpose of size.
6) chamber further, is carried on the back using U-shaped metal, in the both sides metal-loaded wall of radiant body, beneficial to the radiation edge of antenna
In the vertical direction of radiation patch；The sheet metal of both sides and floor form semi-enclosed U-shaped wire chamber, are pasted on floor and radiation
Air is filled between the bottom of the medium substrate of piece, although the dielectric constant of medium substrate is higher, equivalent dielectric is normal
Number only 2, so antenna can obtain higher gain, and the impedance matching of antenna is advantageously implemented using cavity body structure
With the size for reducing antenna.
7) further, the volume of antenna could be arranged to 30mmX30mmX5mm, and overall dimensions are all smaller；It is positioned over
Mobile phone can receive the uplink and downlink frequency range of S frequency ranges simultaneously.
To sum up, Miniaturization high-gain two-band circular polarized antenna of the present invention, using single feedback method feed, in micro-strip spoke
Penetrate on piece and drive the micro-strip circular polarized antenna in M shape gap, the length by adjusting gap excites phase to differ 90 degree, amplitude phase
Deng both of which to realize circular polarisation.By loading U-shaped cavity below radiation patch, miniaturization, double frequency are finally realized
Section, the right-handed circular polarization antenna of high-gain, meets application demand in practice.
The invention provides a kind of compact dual-frequency section high-gain right-handed circular polarization microstrip antenna.With double frequency-band, Gao Zeng
Benefit, miniaturization, good directed radiation, the features such as feeding classification is simple, the requirement of military communication antenna for mobile phone can be met, it is convenient
Communication handset aerial head is positioned over, realizes flip.
Claims (8)
1. Miniaturization high-gain two-band circular polarized antenna, it is characterised in that：Including dielectric substrate (1), radiant body (2) with
And U-shaped metal back of the body chamber (3)；The radiant body (1) is in the plane upper surface for being printed on dielectric substrate (1)；
The radiant body (1) is rectangle, is provided with from radiant body (1) center to four edges and extends on the radiant body (1), and edge
Using the center of radiant body (1) as equally distributed first T-slot hole (21) of the round week in the center of circle, the second T-slot hole (22), the 3rd
T-slot hole (23) and the 4th T-slot hole (24)；The first T-slot hole (21), the second T-slot hole (22), the 3rd T-slot hole
(23) and the 4th T-slot hole (24) includes horizontal slotted eye and vertical slotted eye, and the sideline of the horizontal slotted eye and radiant body (1) is put down
OK, the vertical slotted eye is vertical with the sideline of radiant body (1)；
It is provided with the first rectangular shaped slot (25) and the second rectangular shaped slot (26) on the diagonal of the radiant body (1), described
The first T-shaped radiant body (4) is provided with one rectangular shaped slot (25), the second T-shaped spoke is provided with second rectangular shaped slot (26)
Beam (5)；
The first T-shaped radiant body (4) includes the first narrow side radiation micro-strip (41) and the first broadside radiation micro-strip (42)；It is described
First broadside radiation micro-strip (42) is positioned at one end of the first narrow side radiation micro-strip (41)；
The width that the first narrow side radiation micro-strip (41) has is less than the width of the first rectangular shaped slot (25), first broadside
There is spacing between radiation micro-strip (42) and one end of the first rectangular shaped slot (25)；
The second T-shaped radiant body (5) includes the second narrow side radiation micro-strip (51) and the second broadside radiation micro-strip (52)；It is described
Second broadside radiation micro-strip (52) is positioned at one end of the second narrow side radiation micro-strip (51)；
The width that the second narrow side radiation micro-strip (51) has is less than the width of the second rectangular shaped slot (26), second broadside
There is spacing between radiation micro-strip (52) and one end of the second rectangular shaped slot (26)；
The U-shaped metal back of the body chamber (3) is arranged on the underface of dielectric substrate (1), is set in the U-shaped metal back of the body chamber (3)
There is feed structure；The feed structure electrically connects with radiant body (2).
2. Miniaturization high-gain two-band circular polarized antenna as claimed in claim 1, it is characterised in that：First T-slot
Hole (21), the second T-slot hole (22), the 3rd T-slot hole (23) and the 4th T-slot hole (24) include horizontal slotted eye and vertical slot
Hole, the horizontal slotted eye with width and vertical slotted eye with width it is unequal；And the width that the horizontal slotted eye has
The width having more than vertical slotted eye.
3. Miniaturization high-gain two-band circular polarized antenna as claimed in claim 1, it is characterised in that：First T-slot
Symmetrical slotted eye two-by-two is vertical in hole (21), the second T-slot hole (22), the 3rd T-slot hole (23) and the 4th T-slot hole (24)
The equal length of slotted eye, the length of asymmetric then vertical slotted eye and the length of horizontal slotted eye are unequal.
4. Miniaturization high-gain two-band circular polarized antenna as claimed in claim 1, it is characterised in that：First rectangular channel
The width having and identical length of hole (25) and the second rectangular shaped slot (26) are same.
5. Miniaturization high-gain two-band circular polarized antenna as claimed in claim 1, it is characterised in that：The first broadside spoke
Penetrate the width and length correspondent equal that micro-strip (42) and the second broadside radiation micro-strip (52) have；First broadside radiates micro-strip
(42) spacing between one end of the first rectangular shaped slot (25) and second broadside radiation micro-strip (52) and the second rectangular channel
Spacing between the one end in hole (26) is equal.
6. Miniaturization high-gain two-band circular polarized antenna as claimed in claim 1, it is characterised in that：The first broadside spoke
It is equal to penetrate the width that micro-strip (42) and the second broadside radiation micro-strip (52) have；The first broadside radiation micro-strip (42) and second
The length that broadside radiation micro-strip (52) has.
7. Miniaturization high-gain two-band circular polarized antenna as claimed in claim 1, it is characterised in that：The U-shaped metal back of the body
Chamber (3) has bottom plate (33) and two relative side walls (32)；Spacing between bottom plate (33) upper surface and radiant body (2)
Less than 0.01 λ, λ is low frequency air wavelength.
8. Miniaturization high-gain two-band circular polarized antenna as claimed in claim 7, it is characterised in that：The U-shaped metal back of the body
Feed structure in chamber (3) includes the feed probes (31) being arranged on the bottom plate (33) of U-shaped metal back of the body chamber (3)；The feed
Probe (31) and radiant body (2) coaxial feed.
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| CN201710578549.2A CN107359420B (en) | 2017-07-17 | 2017-07-17 | Miniaturized high-gain dual-band circularly polarized antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428997A (en) * | 2018-01-17 | 2018-08-21 | 深圳市华信天线技术有限公司 | Broadband plane antenna |
| CN109390669A (en) * | 2018-09-28 | 2019-02-26 | 湖北三江航天险峰电子信息有限公司 | A kind of dual-band antenna |
| CN109873249A (en) * | 2017-12-04 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of micro-strip navigation antenna with air back chamber |
| CN112803136A (en) * | 2020-12-14 | 2021-05-14 | 苏州迈斯维通信技术有限公司 | Plane 5G low frequency and millimeter wave dual-band antenna with adjustable azimuth angle |
| CN117525895A (en) * | 2024-01-04 | 2024-02-06 | 深圳市亿道数码技术有限公司 | Broadband separation type antenna and mobile terminal |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832451A (en) * | 2012-09-18 | 2012-12-19 | 陕西海创中盈信息技术有限公司 | Wide-band miniaturized gain-controllable directional antenna and manufacturing method thereof |
| CN103022703A (en) * | 2012-12-25 | 2013-04-03 | 南京邮电大学 | Broadband cavity-backed double-slot microstrip antenna |
| US20140375502A1 (en) * | 2013-06-25 | 2014-12-25 | Futurewei Technologies, Inc. | Mixed Structure Dual-Band Dual-Beam Three-Column Phased Array Antenna |
| CN105958189A (en) * | 2016-05-31 | 2016-09-21 | 桂林电子科技大学 | Small-size broadband antenna |
| CN205680784U (en) * | 2016-06-01 | 2016-11-09 | 中国电子科技集团公司第五十四研究所 | Zigzag crossed slit circular polarisation cavity-backed radiator antenna |
| CN106877003A (en) * | 2017-03-22 | 2017-06-20 | 桂林电子科技大学 | A kind of reflection-type ultra wide band Terahertz polarization restructural circular polarizer |
| CN106935963A (en) * | 2017-01-20 | 2017-07-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | High isolation dual polarized circumferential weld microband antenna unit |
| CN207441973U (en) * | 2017-07-17 | 2018-06-01 | 桂林电子科技大学 | Miniaturization high-gain two-band circular polarized antenna |
-
2017
- 2017-07-17 CN CN201710578549.2A patent/CN107359420B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102832451A (en) * | 2012-09-18 | 2012-12-19 | 陕西海创中盈信息技术有限公司 | Wide-band miniaturized gain-controllable directional antenna and manufacturing method thereof |
| CN103022703A (en) * | 2012-12-25 | 2013-04-03 | 南京邮电大学 | Broadband cavity-backed double-slot microstrip antenna |
| US20140375502A1 (en) * | 2013-06-25 | 2014-12-25 | Futurewei Technologies, Inc. | Mixed Structure Dual-Band Dual-Beam Three-Column Phased Array Antenna |
| CN105958189A (en) * | 2016-05-31 | 2016-09-21 | 桂林电子科技大学 | Small-size broadband antenna |
| CN205680784U (en) * | 2016-06-01 | 2016-11-09 | 中国电子科技集团公司第五十四研究所 | Zigzag crossed slit circular polarisation cavity-backed radiator antenna |
| CN106935963A (en) * | 2017-01-20 | 2017-07-07 | 西南电子技术研究所（中国电子科技集团公司第十研究所） | High isolation dual polarized circumferential weld microband antenna unit |
| CN106877003A (en) * | 2017-03-22 | 2017-06-20 | 桂林电子科技大学 | A kind of reflection-type ultra wide band Terahertz polarization restructural circular polarizer |
| CN207441973U (en) * | 2017-07-17 | 2018-06-01 | 桂林电子科技大学 | Miniaturization high-gain two-band circular polarized antenna |
Non-Patent Citations (7)
| Title |
|---|
| RAJESH C. PARYANI 等: "A Wideband Dual-Polarized Substrate-Integrated Cavity-Backed Slot Antenna", 《ANTENNAS AND WIRELESS PROPAGATION LETTERS》 * |
| RAJESH C. PARYANI 等: "A Wideband Dual-Polarized Substrate-Integrated Cavity-Backed Slot Antenna", 《ANTENNAS AND WIRELESS PROPAGATION LETTERS》, vol. 9, 8 July 2010 (2010-07-08), pages 645 - 648, XP011331379, DOI: 10.1109/LAWP.2010.2056190 * |
| 周子成 等: "四点馈电的双极化单层微带背腔天线", 《火控雷达技术》 * |
| 周子成 等: "四点馈电的双极化单层微带背腔天线", 《火控雷达技术》, vol. 45, no. 1, 25 March 2016 (2016-03-25), pages 97 - 100 * |
| 张碧明 等: "基于异形反射腔的特定波束覆盖的螺旋天线", 《桂林电子科技大学学报》 * |
| 张碧明 等: "基于异形反射腔的特定波束覆盖的螺旋天线", 《桂林电子科技大学学报》, vol. 37, no. 1, 28 February 2017 (2017-02-28), pages 20 - 24 * |
| 陈霞: "基于CST的宽频带毫米波微带天线研究", 《万方学术》, pages 3 - 4 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873249A (en) * | 2017-12-04 | 2019-06-11 | 北京自动化控制设备研究所 | A kind of micro-strip navigation antenna with air back chamber |
| CN108428997A (en) * | 2018-01-17 | 2018-08-21 | 深圳市华信天线技术有限公司 | Broadband plane antenna |
| CN108428997B (en) * | 2018-01-17 | 2020-08-21 | 深圳市华信天线技术有限公司 | Broadband planar antenna |
| CN109390669A (en) * | 2018-09-28 | 2019-02-26 | 湖北三江航天险峰电子信息有限公司 | A kind of dual-band antenna |
| CN112803136A (en) * | 2020-12-14 | 2021-05-14 | 苏州迈斯维通信技术有限公司 | Plane 5G low frequency and millimeter wave dual-band antenna with adjustable azimuth angle |
| CN112803136B (en) * | 2020-12-14 | 2022-06-03 | 苏州迈斯维通信技术有限公司 | Plane 5G low frequency and millimeter wave dual-band antenna with adjustable azimuth angle |
| CN117525895A (en) * | 2024-01-04 | 2024-02-06 | 深圳市亿道数码技术有限公司 | Broadband separation type antenna and mobile terminal |
| CN117525895B (en) * | 2024-01-04 | 2024-04-12 | 深圳市亿道数码技术有限公司 | Broadband separation type antenna and mobile terminal |
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Application publication date: 20171117 Assignee: Guilin Jiuyu Technology Co.,Ltd. Assignor: GUILIN University OF ELECTRONIC TECHNOLOGY Contract record no.: X2023980045858 Denomination of invention: Miniaturized high gain dual band circularly polarized antenna Granted publication date: 20230811 License type: Common License Record date: 20231107 |