CN206727219U - A kind of circular polarised array antenna and communication equipment - Google Patents
A kind of circular polarised array antenna and communication equipment Download PDFInfo
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- CN206727219U CN206727219U CN201720545054.5U CN201720545054U CN206727219U CN 206727219 U CN206727219 U CN 206727219U CN 201720545054 U CN201720545054 U CN 201720545054U CN 206727219 U CN206727219 U CN 206727219U
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Abstract
The utility model discloses a kind of circular polarised array antenna and communication equipment, each ellipse patch in ellipse patch array in the antenna is connected by each output port of each first microstrip line and feeding network to realize parallelly feeding, ellipse patch array and feeding network are placed in the upper surface of pcb board, floor is placed in the lower surface of pcb board, floor has oval groove and rectangular patch, and each oval groove and each rectangular patch are one group corresponding with an ellipse patch.There is circumferential weld between oval groove and ellipse patch, so as to form capacitive load, and coupling short between ellipse patch and rectangular patch, so as to form inductance loading.On this basis, the projection angle of the major axis of ellipse patch and the major axis of oval groove and the first microstrip line is 45 degree, so as to realize circular polarization radiation in working frequency range.Because the section of ellipse patch and the first microstrip line is all relatively low, shared volume is also smaller, therefore, on the basis of circular polarisation, can realize miniaturization and the low Section Design of antenna.
Description
Technical field
Radio frequency arts are the utility model is related to, more particularly to a kind of circular polarised array antenna and communication equipment.
Background technology
With the development of modern communication technology, it is difficult to meet communicating requirement to carry out simple linear polarization to antenna.Online pole
On the basis of change, circular polarisation is generated.Circular polarized antenna has the incoming wave that can receive any polarization mode, and its radiated wave also may be used
Received by the antenna of any polarization mode, there is rotation direction orthogonality, the advantages that sexual intercourse interference and anti-multipath reflect can be suppressed.
Micro-strip circular polarized antenna combines the advantages of both microstrip antenna and circular polarized antenna, special by its good electromagnetism
Property, it is widely used in wireless application, such as：The satellites such as measurement, communication, satellite, space flight, global positioning system and RFID system lead to
Letter, remote control, telemetry.But in specific implementation, the usual volume of antenna of circular polarisation is larger, and profile is higher, heavier,
Carrying is not easily assembled.
As can be seen here, how to realize circular polarisation, miniaturization and the low Section Design of antenna is communication equipment association area people
Member's urgent problem to be solved.
Utility model content
The purpose of this utility model is to provide a kind of circular polarised array antenna and communication equipment, for realizing circular polarisation, small
Type and low Section Design.
In order to solve the above technical problems, a kind of circular polarised array antenna of the utility model offer, including ellipse patch array,
Feeding network, pcb board and the floor being connected with the ellipse patch array；
The ellipse patch array includes ellipse patch and the first microstrip line for being connected with the ellipse patch, and each described the
One microstrip line is connected by way of parallelly feeding with the feeding network, and the ellipse patch array and the feeding network are put
In the upper surface of the pcb board, the floor is placed in the lower surface of the pcb board, and the floor has oval groove and rectangle patch
Piece, each described oval groove and each described rectangular patch be one group it is corresponding with the ellipse patch, the oval groove and
There is circumferential weld between the ellipse patch, the rectangular patch and the oval groove have lap and with the ellipse patch
Between coupling short, the projection angle of the major axis and first microstrip line of the major axis of the ellipse patch and the oval groove is equal
For 45 degree；
Wherein, the quantity of the ellipse patch and first microstrip line is 2n, n is positive integer.
Preferably, n 2,4 ellipse patchs of the ellipse patch array are followed successively by the first ellipse patch, second
The spacing of ellipse patch, the 3rd ellipse patch and the 4th ellipse patch, first ellipse patch and second ellipse patch,
The spacing all same of 3rd ellipse patch and the 4th ellipse patch, and be all higher than second ellipse patch with it is described
The spacing of 3rd ellipse patch；
Corresponding, it is ellipse that 4 oval grooves are followed successively by the first oval groove, the second oval groove, the 3rd oval groove and the 4th
Between the spacing of circular groove, first oval groove and second oval groove, the 3rd oval groove and the 4th oval groove
Away from all same, and more than the spacing of second oval groove and the 3rd oval groove, second oval groove and the described 3rd
Oval groove connects.
Preferably, the major axis of the ellipse patch is 0.34 times of wavelength corresponding to operating frequency of antenna, major axis and short axle
Ratio be 1.0438, the major axis of the oval groove and the ratio of short axle are also 1.0438；
Wherein, the operating frequency of antenna is in 5.8GHz, ISM band.
Preferably, the spacing of first ellipse patch and second ellipse patch, the 3rd ellipse patch and institute
The spacing for stating the 4th ellipse patch is the half of wavelength corresponding to the operating frequency of antenna.
Preferably, the feeding network includes at least one microstrip line and the T-shaped converter being connected with the microstrip line.
Preferably, the feeding network specifically includes the second microstrip line that impedance is 50 ohm, and impedance is 70.71 ohm
3rd microstrip line, the 4th microstrip line and 3 T-shaped converters that impedance is 100 ohm；
Wherein, 4 second microstrip lines are connected with 4 first microstrip lines respectively, then with 4 articles of the 3rd micro-strips
Line connects, and 4 articles of the 3rd microstrip lines are connected with 4 articles of the 4th microstrip lines again, and 4 articles of the 4th microstrip lines are two-by-two by the
One T-shaped converter and the second T-shaped converter connection, the first T-shaped converter and the second T-shaped converter are sequentially connected
Second microstrip line, the 3rd microstrip line are connected by the 3rd T-shaped converter again after being connected with the 4th microstrip line, institute
State the 3rd T-shaped converter to be connected with second microstrip line, as single-point feedback interface；
Wherein, n 2, the impedance of first microstrip line is 50 ohm.
Preferably, the pcb board is rectangle single-layer double-side pcb board, relative dielectric constant 4.4, tangent loss 0.02,
Thickness is 1mm.
Preferably, the thickness of the double face copper of the pcb board is 35 μm.
Preferably, the spacing of first ellipse patch and second ellipse patch, the 3rd ellipse patch and institute
The spacing for stating the 4th ellipse patch is 25mm, and the spacing of second ellipse patch and the 3rd ellipse patch is 19mm,
The long 15mm of rectangular patch, the wide 1.85mm, and described in a back gauge of the rectangular patch close to the center of circle of the oval groove
The horizontal range in the center of circle is 6.12mm, and the vertical range on the base of the rectangular patch and the center of circle is 0.2mm；
The spacing of first oval groove and second oval groove, the 3rd oval groove and the 4th oval groove
Spacing is 25mm, and the spacing of second oval groove and the 3rd oval groove is 19mm；
Wherein, wavelength corresponding to the operating frequency of antenna is 50mm.
In order to solve the above technical problems, the utility model also provides a kind of communication equipment, including described circular polarisation array
Antenna.
Circular polarised array antenna provided by the utility model, each ellipse patch in ellipse patch array pass through each first
Microstrip line and feeding network parallelly feeding, ellipse patch array and feeding network are placed in the upper surface of pcb board, and floor is placed in PCB
The lower surface of plate, floor have oval groove and rectangular patch, and each oval groove and each rectangular patch are one group and one
Ellipse patch is corresponding.There is circumferential weld, so as to form capacitive load, and ellipse patch and rectangle paste between oval groove and ellipse patch
Coupling short between piece, so as to form inductance loading, on this basis, the major axis of ellipse patch and the major axis of oval groove and first
The projection angle of microstrip line is 45 degree, so as to realize circular polarization radiation in working frequency range.Due to ellipse patch and first
The section of microstrip line is all relatively low, and thickness is smaller, and shared volume is also smaller, therefore, on the basis of circular polarisation, can realize antenna
Miniaturization and low Section Design and the antenna cost it is relatively low, it is easy of integration, can be widely applied to wireless communication field.
In addition, the utility model also provides a kind of communication equipment for including above-mentioned antenna, equally with above-mentioned beneficial effect.
Brief description of the drawings
In order to illustrate more clearly of the utility model embodiment, letter will be done to the required accompanying drawing used in embodiment below
Single introduction, it should be apparent that, drawings in the following description are only some embodiments of the utility model, general for this area
For logical technical staff, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of structure chart for circular polarised array antenna that the utility model embodiment provides；
Fig. 2 is a kind of structure chart for ellipse patch array that the utility model embodiment provides；
Fig. 3 is a kind of structure chart for feeding network that the utility model embodiment provides；
Fig. 4 is a kind of structure chart on floor that the utility model embodiment provides；
Fig. 5 is a kind of return loss plot for circular polarised array antenna that the utility model embodiment provides；
Fig. 6 is that a kind of Electromagnetic Simulation axle for circular polarised array antenna that the utility model embodiment provides compares curve map；
Reference is as follows：1 it is ellipse patch array, 2 be feeding network, 3 be pcb board, 4 be floor, 12 is first micro-
Band line, 111 be the first ellipse patch, 112 be the second ellipse patch, 113 be the 3rd ellipse patch, 114 be the 4th ellipse patch,
411 be the first oval groove, 412 be the second oval groove, 413 be the 3rd oval groove 413,414 be the 4th oval groove, O be the center of circle, 21
For the second microstrip line, 22 be that the 3rd microstrip line 22,23 is the 4th microstrip line, 241 is the first T-shaped converter, 242 is second T-shaped
Converter, 243 be the 3rd T-shaped converter, 42 be rectangular patch.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is only the utility model part of the embodiment, rather than all real
Apply example.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made, institute
The every other embodiment obtained, belongs to scope of protection of the utility model.
Core of the present utility model is to provide a kind of circular polarised array antenna and communication equipment, for realizing circular polarisation, small
Type and low Section Design.
In order that those skilled in the art more fully understand the utility model, below in conjunction with the accompanying drawings and it is embodied
The utility model is described in further detail for mode.
Fig. 1 is a kind of structure chart for circular polarised array antenna that the utility model embodiment provides.Fig. 2 is the utility model
A kind of structure chart for ellipse patch array that embodiment provides.Fig. 3 is a kind of feeding network that the utility model embodiment provides
Structure chart.Fig. 4 is a kind of structure chart on floor that the utility model embodiment provides.It should be noted that Fig. 1 is with ellipse
Paster and the first microstrip line illustrate exemplified by being 4.As described in Figure 1, the antenna includes ellipse patch array 1 and ellipse patch battle array
Feeding network 2, pcb board 3 and the floor 4 that row 1 connect.
Ellipse patch array 1 includes ellipse patch and the first microstrip line 12 being connected with ellipse patch, each first microstrip line
12 are connected by way of parallelly feeding with feeding network 2, and ellipse patch array 1 and feeding network 2 are placed in the upper table of pcb board 3
Face, floor 4 are placed in the lower surface of pcb board 3, and floor 4 has oval groove and rectangular patch 42, each oval groove and each square
Shape paster 42 is one group corresponding with ellipse patch, has circumferential weld, rectangular patch 42 and ellipse between oval groove and ellipse patch 42
Groove has lap and the coupling short between ellipse patch, the major axis of ellipse patch and the major axis of oval groove and the first micro-strip
The projection angle of line is 45 degree；
Wherein, the quantity of ellipse patch and the first microstrip line is 2n, n is positive integer.
As shown in figure 1, when n is 2, ellipse patch array 1 just comprising 4 ellipse patchs, is followed successively by the first ellipse patch
111st, the second ellipse patch 112, the 3rd ellipse patch 113 and the 4th ellipse patch 114.Then corresponding, 4 oval grooves are followed successively by
First oval groove 411, the second oval groove 412, the 3rd oval groove 413 and the 4th oval groove 414.
The structure of each ellipse patch is identical in specific implementation, i.e. the second ellipse patch 112, the 3rd ellipse patch
113 and the 4th ellipse patch 114 it is identical with the structure of the first ellipse patch 111.
In the present embodiment, the major axis of ellipse patch and the projection angle of the major axis of oval groove and the first microstrip line 12 are 45
Degree is that two amplitudes are equal, phase differs 90 degree of line polarization wave in order to obtain, just it can so obtain the radiation of circularly polarised wave；Separately
Outer oval groove forms capacitive load with the circumferential weld that ellipse patch is formed, and ellipse patch and the coupling short of rectangular patch 42 form inductance
Loading, so as to realize circular polarization radiation in working frequency range.It should be noted that the formation of circumferential weld needs the area of oval groove big
In the area of ellipse patch.
In addition, the section of ellipse patch and the first microstrip line 12 is all relatively low, thickness is smaller, and shared volume is also smaller, because
This, if such antenna is arranged on into aircraft surface, low profile antenna can be conformal well with aircraft surface,
Extra aerodynamic effects will not be produced in itself to aircraft.
In specific implementation, although circular polarisation can be realized using coaxial feed, the integrated difficulty of circuit board is larger,
It is unfavorable for installing.Therefore, in the present embodiment, by using single-point feedback mode, circular polarisation can be realized, again convenient installation.
The circular polarised array antenna that the present embodiment provides, each ellipse patch in ellipse patch array pass through each first micro-strip
Line and feeding network parallelly feeding, ellipse patch array and feeding network are placed in the upper surface of pcb board, and floor is placed in pcb board
Lower surface, floor have oval groove and rectangular patch, and each oval groove and each rectangular patch are one group and an ellipse
Paster is corresponding.There is circumferential weld between oval groove and ellipse patch, so as to form capacitive load, and ellipse patch and rectangular patch it
Between coupling short, so as to form inductance loading, on this basis, the major axis of ellipse patch and the major axis of oval groove and the first micro-strip
The projection angle of line is 45 degree, so as to realize circular polarization radiation in working frequency range.Due to ellipse patch and the first micro-strip
The section of line is all relatively low, and thickness is smaller, and shared volume is also smaller, therefore, on the basis of circular polarisation, can realize the small of antenna
Type and low Section Design and the antenna cost is relatively low, it is easy of integration, it can be widely applied to wireless communication field.
It is understood that in specific implementation, ellipse patch array and feeding network can be integrated in one, can
It is more convenient in use.
On the basis of above-described embodiment, n 2,4 ellipse patchs of ellipse patch array 1 are followed successively by the first oval patch
Piece 111, the second ellipse patch 112, the 3rd ellipse patch 113 and the 4th ellipse patch 114, the first ellipse patch 111 and second
The spacing all same of the spacing of ellipse patch 112, the 3rd ellipse patch 113 and the 4th ellipse patch 114, and it is ellipse to be all higher than second
The spacing of the circle ellipse patch 113 of paster 112 and the 3rd.
Corresponding, 4 oval grooves are followed successively by the first oval groove 411, the second oval groove 412, the 3rd oval groove 413 and
The spacing of four oval grooves 414, the first oval groove 411 and the second oval groove 412, the 3rd oval groove 413 and the 4th oval groove 414
Spacing all same, and more than the spacing of the second oval groove 412 and the 3rd oval groove 413, the second oval groove 412 and the 3rd oval groove
413 connections.
In order to realize circular polarisation, model symmetry is critically important, so can also strengthen the stability of feeding network, therefore, this
The quantity of ellipse patch in utility model in ellipse patch array 1 is 2n, n is 2 in the present embodiment, can be with if n is 3
Regard 4 ellipse patchs in Fig. 2 as an array element, be 8,16,32 backward successively, connect finally by feeding network 2 and distributing point
Connect.
In the present embodiment, there is intersection between the second oval groove 412 and the 3rd oval groove 413 on floor 4, will overlap
Part digs up to form connection, so as to realize circular polarization radiation in working frequency range.It is understood that if n is 1, then
Equivalent to only the first oval groove 411 and the second oval groove 412, therefore, also just without connection.
Preferably embodiment, the major axis of ellipse patch are 0.34 times of wavelength corresponding to operating frequency of antenna, long
Axle and the ratio of short axle are 1.0438, and the major axis of oval groove and the ratio of short axle are also 1.0438；
Wherein, operating frequency of antenna is in 5.8GHz, ISM band.
The spacing of preferably embodiment, the first ellipse patch 111 and the second ellipse patch 112, the 3rd oval patch
The spacing of the ellipse patch 114 of piece 113 and the 4th is the half of wavelength corresponding to operating frequency of antenna.
In the present embodiment, spacing is set to the half of wavelength so that array element radiation both occurs without graing lobe, and and can obtains
Directionality as big as possible.
In specific implementation, when wavelength corresponding to operating frequency of antenna is 50mm, then corresponding, the first ellipse patch
111 and the spacing of second spacing of ellipse patch 112, the 3rd ellipse patch 113 and the 4th ellipse patch 114 be 25mm,
The spacing of two ellipse patchs 112 and the 3rd ellipse patch 113 is 19mm, rectangular patch 42 long 15mm, i.e. L3=15mm, wide
1.85mm, i.e. W3=1.85mm, and rectangular patch 42 is close to the center of circle O of oval groove back gauge center of circle O horizontal range
6.12mm, the base of rectangular patch 42 and center of circle O vertical range are 0.2mm.
The spacing of the spacing of first oval groove 411 and the second oval groove 412, the 3rd oval groove 413 and the 4th oval groove 414
It is 25mm, the spacing of the second oval groove 412 and the 3rd oval groove 413 is 19mm.
Then corresponding, now, the size a1 of the major axis of ellipse patch is 17.35mm, and the size b1 of short axle is
16.62mm, the size a2 of the major axis of oval groove is 22mm, and the size b2 of short axle is 21.07mm.
On the basis of above-described embodiment, feeding network 2 includes at least one microstrip line and T-shaped turn be connected with microstrip line
Parallel operation.
It is understood that feeding network 2 will be connected by parallelly feeding mode with multiple first microstrip lines 12, therefore,
The selection of the species of microstrip line needs to be set according to actual conditions in feeding network, but including at least one kind, and for reality
Existing single-point feedback, is realized using T-shaped converter.Quantity according to the first microstrip line 12 is also required to as the quantity of T-shaped converter
Depending on.
Mode is preferably carried out as one kind, n 2, the impedance of the first microstrip line 12 is 50 ohm, and needs to obtain 50 Europe
, can specifically in the following way during the SMA connectors of nurse.
The input impedance of first microstrip line 12 is 50 Ω, and length dimension L2 is 8mm, and width dimensions W2 is 1.82mm.Feed
It is 50 ohm of the second microstrip line 21 that network 2, which specifically includes impedance, and the 3rd microstrip line 22 that impedance is 70.71 ohm, impedance are
100 ohm of the 4th microstrip line 23 and 3 T-shaped converters；
Wherein, 4 the second microstrip lines 21 are connected with 4 the first microstrip lines 12 respectively, then are connected with 4 article of the 3rd microstrip line 22
Connect, 4 article of the 3rd microstrip line 22 is connected with 4 article of the 4th microstrip line 23 again, and 4 article of the 4th microstrip line 23 passes through the first T-shaped conversion two-by-two
241 and second T-shaped converter 242 of device connects, and the first T-shaped 241 and second T-shaped converter 242 of converter is sequentially connected second
Microstrip line 21, connected again by the 3rd T-shaped converter 243 after the 3rd microstrip line 22 and the 4th microstrip line 23, the 3rd T-shaped converter
243 are connected with the second microstrip line 28, as single-point feedback interface.
It should be noted that first, second microstrip line in the utility model etc. is simply to the type classification of microstrip line, and
It is not singly to refer to a certain bar microstrip line.Such as in Fig. 3, although it is micro- to be connected with second between the first microstrip line 12 and the 3rd microstrip line 22
Band line 21, is connected with the second microstrip line 21 between the first T-shaped microstrip line 22 of converter 241 and the 3rd, but this two microstrip lines
It is not same microstrip line, simply type is identical.
It is understood that the type for the microstrip line being finally connected with the 3rd T-shaped converter is needed according to SMA connectors
Impedance determines.
On the basis of above-described embodiment, pcb board 3 is rectangle single-layer double-side pcb board, relative dielectric constant 4.4, tangent
It is lost as 0.02, thickness 1mm.
Preferably embodiment, the thickness of the double face copper of pcb board 3 is 35 μm.
In specific implementation, pcb board 3 can select FR4_epoxy microwave materials, and the size of pcb board 3 can paste with ellipse
The size of chip arrays 1 is identical, i.e. length dimension L1 is 109mm, and width dimensions W1 is 63.66mm.
In order to verify the performance of each side of the circular polarised array antenna of the utility model embodiment offer.Tool described below
The analogous diagram of body.Fig. 5 is a kind of return loss plot for circular polarised array antenna that the utility model embodiment provides.Such as Fig. 5 institutes
Show, the operating center frequency of the antenna is 5.8GHz, working band 4GHz-6GHz, and absolute bandwidth reaches 2GHz, meets broadband
The requirement of antenna.Fig. 6 is that a kind of Electromagnetic Simulation axle for circular polarised array antenna that the utility model embodiment provides compares curve map.
As shown in figure 5, in the range of main radiation direction -45.0deg-18.9deg, axle than respectively less than 3dB, show circular polarisation effect compared with
It is good.
In the above-described example, it is described in detail for the embodiment of circular polarised array antenna, the utility model also carries
For a kind of communication equipment for including the circular polarised array antenna.The communication equipment is external except communication equipment sheet, including above-mentioned implementation
Circular polarised array antenna described in example.
Because the embodiment of circular polarised array antenna part is described above, therefore in the present embodiment, no longer
Repeat.It is understood that the species of communication equipment can be the electronic products such as mobile phone, tablet personal computer.
The communication equipment that the present embodiment provides, including circular polarised array antenna, each ellipse patch in ellipse patch array
By each first microstrip line and feeding network parallelly feeding, ellipse patch array and feeding network are placed in the upper surface of pcb board, ground
Plate is placed in the small surface of pcb board, and floor has oval groove and rectangular patch, and each oval groove and each rectangular patch are one
Group is corresponding with an ellipse patch.There is circumferential weld between oval groove and ellipse patch, so as to form capacitive load, and ellipse patch
The coupling short between rectangular patch, so as to form inductance loading, on this basis, the major axis of ellipse patch and the length of oval groove
The projection angle of axle and the first microstrip line is 45 degree, so as to realize circular polarization radiation in working frequency range.Due to ellipse patch
And first microstrip line section it is all relatively low, thickness is smaller, and shared volume is also smaller, therefore, can on the basis of circular polarisation
Realize antenna miniaturization and low Section Design and the antenna cost it is relatively low, it is easy of integration, can be widely applied to wireless communication field.
Circular polarised array antenna provided by the utility model and communication equipment are described in detail above.Specification
In each embodiment described by the way of progressive, what each embodiment stressed be it is different from other embodiment it
Place, between each embodiment identical similar portion mutually referring to.For device disclosed in embodiment, due to itself and reality
Apply that method disclosed in example is corresponding, so description is fairly simple, related part is referring to method part illustration.It should refer to
Go out, for those skilled in the art, can also be to this on the premise of the utility model principle is not departed from
Utility model carries out some improvement and modification, and these are improved and modification also falls into the protection domain of the utility model claims
It is interior.
It should also be noted that, in this manual, such as first and second or the like relational terms be used merely to by
One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation
Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning
Covering including for nonexcludability, so that process, method, article or equipment including a series of elements not only include that
A little key elements, but also the other element including being not expressly set out, or also include for this process, method, article or
The intrinsic key element of equipment.In the absence of more restrictions, the key element limited by sentence "including a ...", is not arranged
Except other identical element in the process including the key element, method, article or equipment being also present.
Claims (10)
1. a kind of circular polarised array antenna, it is characterised in that including ellipse patch array (1) and the ellipse patch array (1)
The feeding network (2) of connection, pcb board (3) and floor (4)；
The ellipse patch array (1) includes ellipse patch and the first microstrip line (12) being connected with the ellipse patch, each institute
The first microstrip line (12) is stated to be connected with the feeding network (2) by way of parallelly feeding, the ellipse patch array (1) and
The feeding network (2) is placed in the upper surface of the pcb board (3), and the floor (4) is placed in the lower surface of the pcb board (3)
On, the floor (4) has oval groove and rectangular patch (42), each described oval groove and each described rectangular patch
(42) it is corresponding with the ellipse patch for one group, there is circumferential weld, the rectangle patch between the oval groove and the ellipse patch
Piece (42) and the oval groove have lap and the coupling short between the ellipse patch, the major axis of the ellipse patch
It it is 45 degree with the major axis of the oval groove and the projection angle of first microstrip line (12)；
Wherein, the quantity of the ellipse patch and first microstrip line (12) is 2n, n is positive integer.
2. circular polarised array antenna according to claim 1, it is characterised in that n 2, the ellipse patch array (1)
4 ellipse patchs be followed successively by the first ellipse patch (111), the second ellipse patch (112), the 3rd ellipse patch (113) and
The spacing of 4th ellipse patch (114), first ellipse patch (111) and second ellipse patch (112), the described 3rd
Ellipse patch (113) and the spacing all same of the 4th ellipse patch (114), and it is all higher than second ellipse patch
(112) with the spacing of the 3rd ellipse patch (113)；
Corresponding, 4 oval grooves are followed successively by the first oval groove (411), the second oval groove (412), the 3rd oval groove
(413) and the 4th oval groove (414), the spacing of first oval groove (411) and second oval groove (412), described
Three oval grooves (413) and the spacing all same of the 4th oval groove (414), and it is more than second oval groove (412) and institute
The spacing of the 3rd oval groove (413) is stated, second oval groove (412) connects with the 3rd oval groove (413).
3. circular polarised array antenna according to claim 2, it is characterised in that the major axis of the ellipse patch is antenna work
The ratio of 0.34 times of wavelength corresponding to working frequency, major axis and short axle is 1.0438, the major axis of the oval groove and the ratio of short axle
For 1.0438；
Wherein, the operating frequency of antenna is in 5.8GHz, ISM band.
4. circular polarised array antenna according to claim 3, it is characterised in that first ellipse patch (111) and institute
State spacing, the 3rd ellipse patch (113) and the spacing of the 4th ellipse patch (114) of the second ellipse patch (112)
It is the half of wavelength corresponding to the operating frequency of antenna.
5. circular polarised array antenna according to claim 1, it is characterised in that the feeding network (2) includes at least one
Kind microstrip line and the T-shaped converter being connected with the microstrip line.
6. circular polarised array antenna according to claim 5, it is characterised in that the feeding network (2) specifically includes resistance
Resist the second microstrip line (21) for 50 ohm, the 3rd microstrip line (22) that impedance is 70.71 ohm, that impedance is 100 ohm
Four microstrip lines (23) and 3 T-shaped converters；
Wherein, 4 second microstrip lines (21) are connected with 4 first microstrip lines (12) respectively, then with 4 articles the described 3rd
Microstrip line (22) connects, and 4 articles of the 3rd microstrip lines (22) are connected with 4 articles of the 4th microstrip lines (23) again, 4 articles the described 4th
Microstrip line (23) is connected by the first T-shaped converter (241) and the second T-shaped converter (242) two-by-two, the first T-shaped conversion
Device (241) and the second T-shaped converter (242) are sequentially connected second microstrip line (21), the 3rd microstrip line
(22) and after the 4th microstrip line (23) connection connected again by the 3rd T-shaped converter (243), the 3rd T-shaped converter
(243) it is connected with second microstrip line (21), as single-point feedback interface；
Wherein, n 2, the impedance of first microstrip line (12) is 50 ohm.
7. according to the circular polarised array antenna described in claim 1 to 6 any one, it is characterised in that the pcb board (3) is
Rectangle single-layer double-side pcb board, relative dielectric constant 4.4, tangent loss 0.02, thickness 1mm.
8. circular polarised array antenna according to claim 7, it is characterised in that the double face copper of the pcb board (3)
Thickness is 35 μm.
9. circular polarised array antenna according to claim 3, it is characterised in that first ellipse patch (111) and institute
State spacing, the 3rd ellipse patch (113) and the spacing of the 4th ellipse patch (114) of the second ellipse patch (112)
It is 25mm, the spacing of second ellipse patch (112) and the 3rd ellipse patch (113) is 19mm, the rectangle patch
Piece (42) long 15mm, wide 1.85mm, and described in a back gauge of the rectangular patch (42) close to the center of circle (O) of the oval groove
The horizontal range in the center of circle (O) is 6.12mm, and the base of the rectangular patch (42) and the vertical range of the center of circle (O) are
0.2mm；
The spacing of first oval groove (411) and second oval groove (412), the 3rd oval groove (413) and described
The spacing of 4th oval groove (414) is 25mm, the spacing of second oval groove (412) and the 3rd oval groove (413)
It is 19mm；
Wherein, wavelength corresponding to the operating frequency of antenna is 50mm.
10. a kind of communication equipment, it is characterised in that including the circular polarised array antenna described in claim 1-9 any one.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981719A (en) * | 2017-05-16 | 2017-07-25 | 广东工业大学 | A kind of circular polarised array antenna and communication equipment |
| CN111525280A (en) * | 2020-04-10 | 2020-08-11 | 上海交通大学 | Circular polarization scanning array antenna based on Rotman lens |
| CN111525250A (en) * | 2020-05-26 | 2020-08-11 | 安徽大学 | Broadband semi-elliptical slot antenna array in millimeter wave antenna level packaging and design method |
| US11876308B2 (en) | 2021-03-04 | 2024-01-16 | Boe Technology Group Co., Ltd. | Micro-wave transducer and manufacturing method thereof |
-
2017
- 2017-05-16 CN CN201720545054.5U patent/CN206727219U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106981719A (en) * | 2017-05-16 | 2017-07-25 | 广东工业大学 | A kind of circular polarised array antenna and communication equipment |
| CN106981719B (en) * | 2017-05-16 | 2023-03-24 | 广东工业大学 | Circularly polarized array antenna and communication equipment |
| CN111525280A (en) * | 2020-04-10 | 2020-08-11 | 上海交通大学 | Circular polarization scanning array antenna based on Rotman lens |
| CN111525250A (en) * | 2020-05-26 | 2020-08-11 | 安徽大学 | Broadband semi-elliptical slot antenna array in millimeter wave antenna level packaging and design method |
| CN111525250B (en) * | 2020-05-26 | 2022-03-25 | 安徽大学 | Broadband semi-elliptical slot antenna array in millimeter wave antenna level packaging and design method |
| US11876308B2 (en) | 2021-03-04 | 2024-01-16 | Boe Technology Group Co., Ltd. | Micro-wave transducer and manufacturing method thereof |
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