CN107196044A - A kind of multiple polarization restructural omnidirectional antenna in broadband - Google Patents
A kind of multiple polarization restructural omnidirectional antenna in broadband Download PDFInfo
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- CN107196044A CN107196044A CN201710408291.1A CN201710408291A CN107196044A CN 107196044 A CN107196044 A CN 107196044A CN 201710408291 A CN201710408291 A CN 201710408291A CN 107196044 A CN107196044 A CN 107196044A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/27—Adaptation for use in or on movable bodies
- H01Q1/28—Adaptation for use in or on aircraft, missiles, satellites, or balloons
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/314—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors
- H01Q5/335—Individual or coupled radiating elements, each element being fed in an unspecified way using frequency dependent circuits or components, e.g. trap circuits or capacitors at the feed, e.g. for impedance matching
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
- H01Q9/28—Conical, cylindrical, cage, strip, gauze, or like elements having an extended radiating surface; Elements comprising two conical surfaces having collinear axes and adjacent apices and fed by two-conductor transmission lines
- H01Q9/285—Planar dipole
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- Aviation & Aerospace Engineering (AREA)
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention discloses a kind of multiple polarization restructural omnidirectional antenna in broadband, including two medium substrates, horizontal loops, monopole, broadband feeding network, L-type microstrip line and impedance matching network up and down.The monopole is made up of top layer loading and 4 identical short-circuit posts and taper feed structure, the superincumbent medium substrate back side of the top layer loading printing, 4 identical the short circuit metal nails and taper feed structure are located in the middle of two medium substrates up and down, the horizontal loops are printed on the following medium substrate back side, and the broadband feeding network, L-type microstrip line are connected with impedance matching network and are located below ending substrate front side.This antenna can realize level, the vertical, restructural of three kinds of polarization modes of circular polarisation in 1.7 2.2GHz frequency ranges.
Description
Technical field
The present invention relates to mobile communication antenna field, and in particular to a kind of multiple polarization restructural omnidirectional antenna in broadband.
Background technology
With the progress of science and technology, people increase the demand of information like never before so that the communication technology is obtained
By leaps and bounds develop.As an important branch of the communications field, radio communication because its broken away to physical transmission line according to
Rely, be widely applied in every field such as national defence, the people's livelihood.And antenna is the information gateway of wireless device, it is linear
The quality of energy directly affects the communication quality of whole wireless communication system.
Compared to ordinary antennas, polarization reconfigurable antenna can improve spatial degrees of freedom to improve wireless communication system
Power system capacity, improve the availability of frequency spectrum, improve communication system transmission rate.In addition, polarization reconfigurable antenna is for multipath
The signal fadeout that effect is caused also has certain inhibitory action, improves immunocompetence of the system to interference signal.
Omnidirectional antenna refers to the antenna for having certain beam angle in 360 ° of homogeneous radiations of horizontal plane, vertical plane, Gu Qifa
The signal penetrated can be received by the receiving terminal of horizontal plane arbitrary orientation, while the signal of horizontal plane all directions can be received, logical
It is generally used in letter system in a wide range of covering, point-to-multipoint communication system.
Current omnidirectional's polarization reconfigurable antenna is to change antenna radiator by dynamic or change the feedback of feeding network mostly
Two methods of power path realize omnidirectional's polarization restructural.The RF switch for controlling polarization mode is placed in antenna radiator by the former
On, controllable radio frequency switch is arranged on feed structure by the latter.
The content of the invention
The invention aims to solve drawbacks described above of the prior art, there is provided a kind of multiple polarization restructural in broadband
Omnidirectional antenna.
The purpose of the present invention can be reached by adopting the following technical scheme that：
A kind of multiple polarization restructural omnidirectional antenna in broadband, the antenna includes：Upper layer medium substrate, layer dielectric base
Plate, monopole 4, the monopole 4 include top layer loading 12,4 identical short circuit metal nails and taper feed structure 13,
The back side of the upper layer medium substrate is printed with the top layer loading 12 of monopole 4, and the back side of the layer dielectric substrate is printed with
By the molecular horizontal loops 1 of four printed dipoles, the promising feed of horizontal loops 1 of front printing of the layer dielectric substrate
Broadband feeding network 2, L-type microstrip line and horizontal polarization, vertical polarization, right-handed circular polarization is set to cover the impedance matching of same frequency range
Network 3；
The monopole 4 is located at the surface centre position of the horizontal loops 1, and the monopole 4 is fed by the taper
Structure 13 is fed, and the taper feed structure 13 is close to the top layer loading 12 and under the top layer loads 12 and be described
Between layer medium substrate, 4 short circuit metal nails are parallel with the upper and lower layer medium substrate line of centres and using the line of centres as the center of circle
Set Deng radius uniform intervals, connect the metal part of upper and lower layer medium substrate.
Further, be provided with an annulus 14 in the middle of top layer loading 12, the taper feed structure 13 it is upper
The radius of portion's opening is identical with the internal diameter of the annulus 14, the bottom of the taper feed structure 13 and a metal probe
15 are connected, and are connected to by the metal probe 15 on the impedance matching network 3.
Further, the horizontal loops 1 are whole plane, by 4 identical arc printed dipoles around horizontal plane
Origin is uniformly distributed, and four line of rabbet joint, respectively the first line of rabbet joint 6A, second line of rabbet joint are provided between adjacent dipole two-arm
6B, third slot line 6C, the 4th line of rabbet joint 6D.
Further, the broadband feeding network 2 includes 4 impedance transformers 8, and each impedance transformer 8 is curved by one
The microstrip line that song is set is constituted, and it is micro- that the L-type microstrip line includes the first L-type microstrip line 7A, the second L-type microstrip line 7B, the 3rd L-type
Band line 7C and the 4th L-type microstrip line 7D, the terminal open circuit of each L-type microstrip line, the other end respectively with four phases of impedance transformer 8
Even, the microstrip line that the bending of four impedance transformers 8 is set is converged as two-way first by four tunnels, is then one by two-way convergence
Road, and be connected all the way with the impedance matching network 3 by the last of the convergence.
Further, the impedance matching network 3 includes the first microstrip line 9A, the second microstrip line 9B, the 3rd microstrip line
10A, the 4th microstrip line 10B, the 5th microstrip line 11A, the 6th microstrip line 11B, wherein, the first microstrip line 9A and described second
Microstrip line 9B constitutes first paragraph impedance matching microstrip line, the 3rd microstrip line 10A and the 4th microstrip line 10B composition second
Section impedance matching microstrip line, the 5th microstrip line 11A and the 6th microstrip line 11B constitute the 3rd section of impedance matching micro-strip
Line；
The impedance matching network 3 also includes RF switch, respectively first switch S1, second switch S2, the 3rd switch
S3, the 4th switch S4, the 5th switch S5, the 6th switch S6 and the 7th switch S7, wherein, the first switch S1 is located at described the
Between one microstrip line 9A and the 3rd microstrip line 10A；The second switch S2 is located at the first microstrip line 9A and described the
Between two microstrip line 9B；The 3rd switch S3 is located between the second microstrip line 9B and the 4th microstrip line 10B；It is described
4th switch S4 is located between the 4th microstrip line 10B and the 6th microstrip line 11B；The 5th switch S5 is located at described
Between 5th microstrip line 11A and the 6th microstrip line 11B；The 6th switch S6 is located at the 3rd microstrip line 10A and institute
State between the 5th microstrip line 11A；The 7th switch S7 be located at the 3rd microstrip line 10A and the 4th microstrip line 10B it
Between.
Further, when the first switch S1 and second switch S2 closures, when other are switched off, radiofrequency signal
From feed port along the first paragraph impedance matching microstrip line to the broadband feeding network 2, fed to the horizontal loops 1, it is real
Existing antenna horizontal polarization working method；When the first switch S1, the 7th switch S7, the 3rd switch S3, described the
Four switch S4 closures, and other are when switching off, radiofrequency signal is from feed port simultaneously to the horizontal loops 1 and the monopole
4 feeds, and impedance matching is done using the first microstrip line 9A, realize antenna right-handed circular polarization working method；When the described 6th
Switch S6, the 5th switch S5 closures, and other are when switching off, radiofrequency signal is from feed port along the 5th microstrip line
11A is fed with the 6th microstrip line 11B to the monopole 1, realizes antennas orthogonal polarization working method.
Further, the L-type microstrip line and the line of rabbet joint for being printed on the medium substrate back side constitute barron structure, the bar
Human relations structure realizes the balanced feeding to each pair arc printed dipole.
Further, the first paragraph impedance matching microstrip line, the second segment impedance matching microstrip line, described 3rd section
The length of impedance matching microstrip line is identical, is λ g/4, wherein, λ g are ripple of the electromagnetic wave in centre frequency 2GHz correspondence media
It is long.
Further, the center radius length range of the arc printed dipole is 0.25 λ0~0.35 λ0, inside and outside half
Electrical path length scope is respectively 0.22 λ0~0.32 λ0With 0.28 λ0~0.38 λ0, wherein, λ0It is electromagnetic wave in centre frequency 2GHz institutes
There are interval angles between the wavelength of correspondence free space, each adjacent dipole.
The present invention has the following advantages and effect relative to prior art：
The multiple polarization restructural omnidirectional antenna in broadband disclosed by the invention is low section compact structure, it is easy to makes, account for
Small with space, with omnidirectional radiation characteristic, the full frequency band that three kinds of polarization characteristics realize 1.7-2.2GHz is covered and main polarization
Component 15dB more than bigger than cross polar component parameter index, meets small size, omni-directional, polarization restructural and broadband
It is required that.
Brief description of the drawings
Fig. 1 is the overall structure diagram of the multiple polarization restructural omnidirectional antenna in broadband disclosed in the present invention；
Fig. 2 is the horizontal loops being made up of four arc printed dipoles；
Fig. 3 is the broadband feeding network of horizontal annular antenna；
Fig. 4 is to make three kinds to polarize to be operated in the match circuit of same frequency range；
Fig. 5 is that the low section monopole followed closely with short circuit metal is loaded with top layer；
Fig. 6 is the bandwidth figure of three kinds of polarization modes；
Fig. 7 is the bandwidth figure of Circular polarization ratio；
Fig. 8 (a) and Fig. 8 (b) are the directional diagram of horizontal polarization working method horizontal plane and vertical plane in 2.0GHz respectively；
Fig. 9 (a) and Fig. 9 (b) are the directional diagram of vertical polarization working method horizontal plane and vertical plane in 2.0GHz respectively；
Figure 10 (a) and Figure 10 (b) are the directional diagram of circular polarisation working method horizontal plane and vertical plane in 2.0GHz respectively.
Embodiment
To make the purpose, technical scheme and advantage of the embodiment of the present invention clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
A part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment obtained under the premise of creative work is not made, belongs to the scope of protection of the invention.
Embodiment
As shown in figure 1, a kind of broadband polarization restructural omnidirectional antenna, including upper layer medium substrate, layer dielectric substrate, list
Extremely son 4, the monopole 4 includes top layer loading 12,4 identical short circuit metals nails and taper feed structure 13, it is described on
The back side of layer medium substrate is printed with the top layer loading of monopole 4, and the back side of the layer dielectric substrate is printed with by four prints
Brush dipole triads into horizontal loops 1, the broadband feeding network that promising horizontal loops 1 are fed is printed in the front of the layer dielectric substrate
2nd, L-type microstrip line and three kinds of polarization (horizontal polarization, vertical polarization, right-handed circular polarization) are made to cover the impedance matching net of same frequency range
Network 3.
Upper layer medium substrate and layer dielectric substrate use thickness to be that 2.2, loss tangent is for 0.8mm, dielectric constant
0.0009 sheet material of Rogers 5880.
The monopole 4, which is located in the middle of the surface centre position of the horizontal loops 1, the top layer loading 12, is provided with one
Annulus 14, the taper feed structure is close to top layer and loads and be located between top layer loading and layer dielectric substrate, institute
State 4 short circuit metals nail parallel with the upper and lower layer medium substrate line of centres and between radius is uniform by the center of circle of the line of centres etc.
Every setting, the metal part of upper and lower layer medium substrate is connected.
It is the structure of horizontal loops 1 as shown in Figure 2.The horizontal loops 1 are whole plane, are printed by 4 identical arcs
Dipole is uniformly distributed around horizontal plane origin.4 dipoles are respectively the first dipole 5A, the second dipole 5B, the 3rd
Dipole 5C, the 4th dipole 5D.The line of rabbet joint, respectively the first line of rabbet joint 6A, the second groove are provided between adjacent dipole two-arm
Line 6B, third slot line 6C, the 4th line of rabbet joint 6D.All dipole lengths are equal, about 0.5 λ0, λ0It is that electromagnetic wave is corresponding in 2GHz
Free space wavelength.
The center radius length range of arc dipole is 0.25 λ0~0.35 λ0, inside and outside radius length scope is respectively
0.22λ0~0.32 λ0With 0.28 λ0~0.38 λ0, wherein, λ0It is electromagnetic wave in the wavelength of the corresponding free spaces of 2GHz, Mei Gexiang
There are interval angles between adjacent dipole.
In the present embodiment, dipole center radius is 47.5mm, and interior outer radius is 42mm and 53mm, each adjacent idol respectively
Interval angles extremely between son are about 3 °.Line of rabbet joint spacing 0.63mm between dipole two-arm, depth 39mm.
The generation unit of aerial radiation vertically polarized wave is that the monopole 4 with four short circuit metal nails is loaded with top layer.
Monopole 4 is fed by taper feed structure, and an internal diameter size and the top circle size of taper feed structure have been opened in top layer loading
Consistent annulus 14.The section height of monopole is 0.1 λ0。
It is the broadband feeding network 2 and L-type microstrip line of horizontal loops 1 as shown in Figure 3.Broadband feeding network 2 includes 4 impedances
Converter 8, the microstrip line that each impedance transformer 8 is set by a bending is constituted, wherein, the length of every microstrip line is identical,
It is λ g/4, wherein, λ g are wavelength of the electromagnetic wave in centre frequency 2GHz correspondence media.
The L-type microstrip line includes the first L-type microstrip line 7A, the second L-type microstrip line 7B, the 3rd L-type microstrip line 7C and the
Four L-type microstrip line 7D, the terminal open circuit of each L-type microstrip line, the other end is connected with four impedance transformers 8 respectively.Four resistances
The microstrip line that the bending of resistance parallel operation 8 is set is converged as two-way first by four tunnels, then by two-way convergence for all the way, and passes through this
The last of convergence is connected with impedance matching network 3 all the way.
Wherein, L-type microstrip line and the line of rabbet joint for being printed on the medium substrate back side constitute barron structure, and it can be realized to described every
Balanced feeding to printing arc dipole.
It is impedance matching network 3 as shown in Figure 4.The impedance matching network 3 includes the first microstrip line 9A, the second microstrip line
9B, the 3rd microstrip line 10A, the 4th microstrip line 10B, the 5th microstrip line 11A, the 6th microstrip line 11B, wherein, the first microstrip line 9A,
Second microstrip line 9B constitutes first paragraph impedance matching microstrip line, the 3rd microstrip line 10A, the 4th microstrip line 10B composition second segment resistance
Anti- matching microstrip line, the 5th microstrip line 11A, the 6th microstrip line 11B constitute the 3rd section of impedance matching microstrip line.It can be seen that, impedance
Distribution network 3 is constituted by three sections, i.e. first paragraph impedance matching microstrip line, second segment impedance matching microstrip line and the 3rd section of impedance matching
Microstrip line, the characteristic impedance of every section of microstrip line is 50 Ω.First paragraph impedance matching microstrip line is fed to horizontal loops 1, produces water
Flat polarized wave；Second segment impedance matching microstrip line is fed simultaneously to horizontal loops 1 and monopole 4, while needing the first microstrip line 9A
Match, produce right-handed circular polarization ripple；3rd section of impedance matching microstrip line is fed to monopole 1, produces vertically polarized wave.
The impedance matching network 3 also include RF switch, respectively first switch S1, second switch S2, the 3rd switch S3,
4th switch S4, the 5th switch S5, the 6th switch S6 and the 7th switch S7, wherein, first switch S1 is located at the first microstrip line 9A
Between the 3rd microstrip line 10A；Second switch S2 is located between the first microstrip line 9A and the second microstrip line 9B；3rd S3, switch
Between the second microstrip line 9B and the 4th microstrip line 10B；4th switch S4 is located at the 4th microstrip line 10B and the 6th microstrip line 11B
Between；5th switch S5 is located between the 5th microstrip line 11A and the 6th microstrip line 11B；6th switch S6 is located at the 3rd microstrip line
Between 10A and the 5th microstrip line 11A；7th switch S7 is located between the 3rd microstrip line 10A and the 4th microstrip line 10B.
It is the key for realizing polarization restructural to load on the RF switch in impedance matching network 3.By rationally controlling out
Close so that the first paragraph of impedance matching network, second segment, the part path respectively of the 3rd section and second segment, correspondence realize water
Flat, vertical, circularly polarised wave.
When first switch S1 and second switch S2 are closed, when other are switched off, radiofrequency signal is from feed port along first
Section impedance matching microstrip line is fed to broadband feeding network 2 to horizontal loops 1；When first switch S1, the 7th switch S7, the 3rd open
Close S3, the 4th switch S4 closures, and other are when switching off, radiofrequency signal is from feed port along second segment impedance matching microstrip line
Fed simultaneously to horizontal loops 1 and monopole 4 with the second microstrip line 9B, the 6th microstrip line 11B, and done and hinder using the first microstrip line 9A
Anti- matching, realizes circular polarisation working method；S6, the 5th switch S5 closures are switched when the 6th, and other are when switching off, radio frequency letter
Number from feed port along the 3rd section of impedance matching microstrip line give monopole feed, vertically polarized wave is produced in this case.
It is a monopole 4 loaded with top layer with four short circuit metal nails as shown in Figure 5.The top layer loads 12
It is printed on the upper layer medium substrate back side, the middle metal level for being provided with annulus 14.The monopole is tied by a taper feed
Structure 13 is fed, and the radius of the upper opening of taper feed structure 13 is identical with the internal diameter of the annulus 14.Taper feed knot
The bottom of structure 13 is connected with a metal probe 15, and metal probe 15 is connected in Fig. 4 on the 6th microstrip line 11B.The metal
Short circuit nail can help to realize that monopole is minimized, including the first short circuit metal nail 16A, the second short circuit metal nail 16B, the 3rd gold medal
Category short circuit nail 16C, the 4th short circuit metal nail 16D, the gold in the middle of metal and horizontal loops that the short circuit metal nail is loaded with top layer
Symbolic animal of the birth year connects.
As shown in Fig. 6, Fig. 7, Fig. 8, Fig. 9, Figure 10, it is many that the present invention realizes level, vertical, circular polarisation using seven switches
The restructural of the mode of kind, makes a variety of polarization modes be operated in same frequency range 1.7GHz-2.2GHz by introducing impedance matching network,
And the electromagenetic wave radiation of omnidirectional is all realized in each working method, truly complete multiple polarization restructural complete
To the design of antenna.
Above-described embodiment is preferably embodiment, but embodiments of the present invention are not by above-described embodiment of the invention
Limitation, other any Spirit Essences without departing from the present invention and the change made under principle, modification, replacement, combine, simplification,
Equivalent substitute mode is should be, is included within protection scope of the present invention.
Claims (9)
1. a kind of multiple polarization restructural omnidirectional antenna in broadband, it is characterised in that the antenna includes：Upper layer medium substrate, under
Layer medium substrate, monopole (4), the monopole (4) include top layer loading (12), 4 identical short circuit metals nails and
Taper feed structure (13), the back side of the upper layer medium substrate is printed with the top layer loading (12) of monopole (4), the lower floor
The back side of medium substrate is printed with by four molecular horizontal loops of printed dipole (1), the front print of the layer dielectric substrate
It is formed with the broadband feeding network (2) fed for the horizontal loops (1), L-type microstrip line and makes horizontal polarization, vertical polarization, dextrorotation
Circular polarisation covers the impedance matching network (3) of same frequency range；
The monopole (4) is located at the surface centre position of the horizontal loops (1), and the monopole (4) is presented by the taper
Electric structure (13) feed, the taper feed structure (13) is close to the top layer loading (12) and positioned at top layer loading
(12) between the layer dielectric substrate, 4 short circuit metal nails are parallel with the upper and lower layer medium substrate line of centres and with this
Heart line is that the radius uniform intervals such as the center of circle are set, and connects the metal part of upper and lower layer medium substrate.
2. the multiple polarization restructural omnidirectional antenna in a kind of broadband according to claim 1, it is characterised in that the top layer adds
Carry and an annulus (14) is provided with the middle of (12), radius and the annular of the upper opening of the taper feed structure (13)
The internal diameter in gap (14) is identical, and the bottom of the taper feed structure (13) is connected with a metal probe (15), by described
Metal probe (15) is connected on the impedance matching network (3).
3. a kind of multiple polarization restructural omnidirectional antenna in broadband according to claim 1, it is characterised in that the horizontal loops
(1) it is whole plane, is uniformly distributed by 4 identical arc printed dipoles around horizontal plane origin, adjacent idol
Four line of rabbet joint, respectively first line of rabbet joint (6A), second line of rabbet joint (6B), third slot line (6C), the 4th are provided between extremely sub- two-arm
The line of rabbet joint (6D).
4. a kind of multiple polarization restructural omnidirectional antenna in broadband according to claim 3, it is characterised in that the broadband feedback
Electric network (2) includes 4 impedance transformers (8), and the microstrip line that each impedance transformer (8) is set by a bending is constituted, institute
Stating L-type microstrip line includes the first L-type microstrip line (7A), the second L-type microstrip line (7B), the 3rd L-type microstrip line (7C) and the 4th L-type
Microstrip line (7D), the terminal open circuit of each L-type microstrip line, the other end is connected with four impedance transformers (8) respectively, four impedances
The microstrip line that the bending of converter (8) is set is converged as two-way first by four tunnels, then by two-way convergence for all the way, and passes through this
The last of convergence is connected with the impedance matching network (3) all the way.
5. a kind of multiple polarization restructural omnidirectional antenna in broadband according to claim 1, it is characterised in that the impedance
Distribution network (3) includes the first microstrip line (9A), the second microstrip line (9B), the 3rd microstrip line (10A), the 4th microstrip line (10B), the
Five microstrip line 11A, the 6th microstrip line 11B, wherein, first microstrip line (9A) and second microstrip line (9B) composition first
Section impedance matching microstrip line, the 3rd microstrip line (10A) and the 4th microstrip line (10B) composition the second segment impedance matching is micro-
Band line, the 5th microstrip line (11A) and the 6th microstrip line (11B) constitute the 3rd section of impedance matching microstrip line；
The impedance matching network (3) also includes RF switch, and respectively first switch (S1), second switch (S2), the 3rd opens
(S3), the 4th switch (S4), the 5th switch (S5), the 6th switch (S6) and the 7th switch (S7) are closed, wherein, the first switch
(S1) it is located between first microstrip line (9A) and the 3rd microstrip line (10A)；The second switch (S2) is located at described
Between first microstrip line (9A) and second microstrip line (9B)；3rd switch (S3) is located at second microstrip line (9B)
Between the 4th microstrip line (10B)；4th switch (S4) is micro- positioned at the 4th microstrip line (10B) and the described 6th
Between band line (11B)；5th switch (S5) be located at the 5th microstrip line (11A) and the 6th microstrip line (11B) it
Between；6th switch (S6) is located between the 3rd microstrip line (10A) and the 5th microstrip line (11A)；Described 7th
(S7) is switched to be located between the 3rd microstrip line (10A) and the 4th microstrip line (10B).
6. the multiple polarization restructural omnidirectional antenna in a kind of broadband according to claim 5, it is characterised in that when described first
Switch (S1) and the second switch (S2) to close, when other are switched off, radiofrequency signal is from feed port along the first paragraph
Impedance matching microstrip line gives the horizontal loops (1) feed to the broadband feeding network (2), realizes that antenna horizontal polarization works
Mode；When the first switch (S1), the 7th switch (S7), the 3rd switch (S3), the 4th switch (S4) are closed
Close, and other are when switching off, radiofrequency signal from feed port simultaneously to the horizontal loops (1) and the monopole (4) feed,
And impedance matching is done using first microstrip line (9A), realize antenna right-handed circular polarization working method；When the described 6th switch
(S6), the 5th switch (S5) closure, and other are when switching off, radiofrequency signal is from feed port along the 5th microstrip line
(11A) is fed with the 6th microstrip line (11B) to the monopole 1, realizes antennas orthogonal polarization working method.
7. the multiple polarization restructural omnidirectional antenna in a kind of broadband according to claim 3, it is characterised in that
The L-type microstrip line and the line of rabbet joint composition barron structure for being printed on the medium substrate back side, barron structure realization pair
The balanced feeding of each pair arc printed dipole.
8. the multiple polarization restructural omnidirectional antenna in a kind of broadband according to claim 5, it is characterised in that
The first paragraph impedance matching microstrip line, the second segment impedance matching microstrip line, the 3rd section of impedance matching micro-strip
The length of line is identical, is λ g/4, wherein, λ g are wavelength of the electromagnetic wave in centre frequency 2GHz correspondence media.
9. the multiple polarization restructural omnidirectional antenna in a kind of broadband according to claim 3, it is characterised in that
The center radius length range of the arc printed dipole is 0.25 λ0~0.35 λ0, inside and outside radius length scope difference
For 0.22 λ0~0.32 λ0With 0.28 λ0~0.38 λ0, wherein, λ0It is electromagnetic wave in free space corresponding to centre frequency 2GHz
There are interval angles between wavelength, each adjacent dipole.
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| CN201710408291.1A CN107196044B (en) | 2017-06-02 | 2017-06-02 | Broadband multi-polarization reconfigurable omnidirectional antenna |
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| CN201710408291.1A CN107196044B (en) | 2017-06-02 | 2017-06-02 | Broadband multi-polarization reconfigurable omnidirectional antenna |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107834184A (en) * | 2017-11-06 | 2018-03-23 | 华南理工大学 | A kind of broadband circle polarized slot antenna |
| CN107887712A (en) * | 2017-10-19 | 2018-04-06 | 电子科技大学 | A kind of multifrequency left-right-hand circular polarization alternate reconfigurable antenna successively |
| CN108336488A (en) * | 2018-01-29 | 2018-07-27 | 佛山市粤海信通讯有限公司 | A kind of Wide-frequency antenna on ceiling of top-loaded |
| CN108448244A (en) * | 2018-05-04 | 2018-08-24 | 南京航空航天大学 | A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S |
| CN110176667A (en) * | 2019-05-16 | 2019-08-27 | 中天宽带技术有限公司 | A kind of adjustable antenna of polarization direction |
| CN110534870A (en) * | 2018-05-24 | 2019-12-03 | 三星电子株式会社 | Phased array antenna module and communication equipment including phased array antenna module |
| CN112768889A (en) * | 2020-12-25 | 2021-05-07 | 深圳市南斗星科技有限公司 | Filtering antenna, antenna array and wireless device |
| CN113097718A (en) * | 2021-03-04 | 2021-07-09 | 西安交通大学 | Dual-frequency dual-circular-polarization common-caliber antenna for satellite communication |
| CN114651374A (en) * | 2019-09-18 | 2022-06-21 | 华为技术有限公司 | Beam diversity using smart antennas with passive elements |
| CN115020969A (en) * | 2022-05-30 | 2022-09-06 | 南京信息工程大学 | Broadband polarization reconfigurable antenna applied to 5G micro base station |
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Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107887712A (en) * | 2017-10-19 | 2018-04-06 | 电子科技大学 | A kind of multifrequency left-right-hand circular polarization alternate reconfigurable antenna successively |
| CN107887712B (en) * | 2017-10-19 | 2019-08-13 | 电子科技大学 | A kind of multifrequency left-right-hand circular polarization successively alternate reconfigurable antenna |
| CN107834184A (en) * | 2017-11-06 | 2018-03-23 | 华南理工大学 | A kind of broadband circle polarized slot antenna |
| CN107834184B (en) * | 2017-11-06 | 2023-12-29 | 华南理工大学 | Broadband circularly polarized slot antenna |
| CN108336488A (en) * | 2018-01-29 | 2018-07-27 | 佛山市粤海信通讯有限公司 | A kind of Wide-frequency antenna on ceiling of top-loaded |
| CN108336488B (en) * | 2018-01-29 | 2024-02-20 | 佛山市粤海信通讯有限公司 | Top-loaded broadband ceiling antenna |
| CN108448244A (en) * | 2018-05-04 | 2018-08-24 | 南京航空航天大学 | A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S |
| CN108448244B (en) * | 2018-05-04 | 2024-03-19 | 南京航空航天大学 | Compact omni-directional circular polarization reconfigurable antenna working at BDS-1S |
| CN110534870A (en) * | 2018-05-24 | 2019-12-03 | 三星电子株式会社 | Phased array antenna module and communication equipment including phased array antenna module |
| CN110176667A (en) * | 2019-05-16 | 2019-08-27 | 中天宽带技术有限公司 | A kind of adjustable antenna of polarization direction |
| CN114651374A (en) * | 2019-09-18 | 2022-06-21 | 华为技术有限公司 | Beam diversity using smart antennas with passive elements |
| US11978963B2 (en) | 2019-09-18 | 2024-05-07 | Huawei Technologies Co., Ltd. | Beam diversity by smart antenna with passive elements |
| CN114651374B (en) * | 2019-09-18 | 2023-09-01 | 华为技术有限公司 | Beam diversity with smart antennas having passive elements |
| CN112768889A (en) * | 2020-12-25 | 2021-05-07 | 深圳市南斗星科技有限公司 | Filtering antenna, antenna array and wireless device |
| CN112768889B (en) * | 2020-12-25 | 2023-08-25 | 深圳市南斗星科技有限公司 | Filtering antenna, antenna array and wireless device |
| CN113097718A (en) * | 2021-03-04 | 2021-07-09 | 西安交通大学 | Dual-frequency dual-circular-polarization common-caliber antenna for satellite communication |
| CN113097718B (en) * | 2021-03-04 | 2022-07-12 | 西安交通大学 | Dual-frequency dual-circular-polarization common-caliber antenna for satellite communication |
| CN115020969B (en) * | 2022-05-30 | 2023-05-09 | 南京信息工程大学 | Broadband polarization reconfigurable antenna applied to 5G micro base station |
| CN115020969A (en) * | 2022-05-30 | 2022-09-06 | 南京信息工程大学 | Broadband polarization reconfigurable antenna applied to 5G micro base station |
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