CN208240873U - A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S - Google Patents
A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S Download PDFInfo
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- CN208240873U CN208240873U CN201820660094.9U CN201820660094U CN208240873U CN 208240873 U CN208240873 U CN 208240873U CN 201820660094 U CN201820660094 U CN 201820660094U CN 208240873 U CN208240873 U CN 208240873U
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Abstract
The utility model discloses a kind of compact Circular polarized omni-directional reconfigurable antennas for working in BDS-1 S, include upper layer medium substrate, layer dielectric substrate, the arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch, 2N RF switch diode, N+1 snakelike trace inductances, N+1 pad, annular ground plate, N number of metal column, coaxial feed probe and one point of N power splitter；The arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch, which are staggeredly spaced, to be mounted on upper layer medium substrate upper surface and forms ring-type, is electrically connected therebetween by RF switch diode, the biased direction of adjacent radio frequency switching diode is consistent.The utility model Circular polarized omni-directional radiance is good, be able to achieve omnidirectional left-right-hand circular polarization switching, be lost it is small, compact-sized, easy to process, low in cost, solve in the prior art that structure is complicated for omnidirectional's left-right-hand circular polarization reconfigurable antenna, big problem is lost in more introduce of RF switch diode.
Description
Technical field
The utility model relates to microwave technical field more particularly to a kind of restructural days of compact omnidirectional left-right-hand circular polarization
Line.
Background technique
The object (such as spacecraft, aircraft, automobile) that omnidirectional circular-polarized antenna even acutely swings or rolls in high-speed motion
On, radio signal can be received under any motion state；In radio data system, it can effectively expand signal covering
Range, and ghost image stress is overcome to a certain extent.Circularly polarised wave is a constant amplitude rotating field, can be decomposed into two amplitude phases
Deng, 90 degree of phase phase difference of line polarization wave.Circularly polarized signal can be received by various linear polarized antennas, while circular polarized antenna can
To receive any linear polarization incoming wave, and left (right side) hand circular polarization antenna cannot receive right (left side) circularly polarised wave.Therefore design structure
Simply, feeding convenient omnidirectional's left-right-hand circular polarization reconfigurable antenna has great theory significance and engineering value.
It is less to the research of omnidirectional's left-right-hand circular polarization reconfigurable antenna both at home and abroad at present.Patent document
(201120020320.5) a kind of left-right-hand circular polarization reconfigurable antenna is proposed, main technical schemes are to provide a kind of left and right
The restructural low profile back-cavity antenna of hand circular polarization, but this method can not achieve omnidirectional radiation.2016, Yuan-Ming
Cai et al. has delivered " Compact-Size on IEEE Transactions on Antennas and Propagation
Low-ProfileWideband Circularly Polarized Omnidirectional Patch Antenna With
24 RF switch diodes are added in antenna ground plate etching curved slot in Reconfigurable Polarizations ".
2013, Bo Li et al. people delivered on IEEE Antenna and Wireless Propagation Letters
“Polarization-Reconfigurable Omnidirectional Antenna Combining Dipole and
Loop Radiators " realizes that circular polarisation reconstructs using 48 switching diodes in conjunction with dipole and loop aerial.Two day
Line has used more switching diode to increase aerial loss.2015, Yi Fan et al. was delivered on AP-S
" Polarization Reconfigurable Omnidirectional Antenna Using Crossed Dipoles ",
Change the on-off of inclination dipole, but non-low section structure with 16 switching diodes, is not applied for much needing low section
The system of structure.
Utility model content
Technical problem to be solved in the utility model is for the restructural day of omnidirectional's left-right-hand circular polarization in the prior art
The problem that cable architecture is complicated, RF switch diode and the more introducing loss of lumped inductance element are big, provides and works in BDS-1 S
Compact Circular polarized omni-directional reconfigurable antenna, Circular polarized omni-directional radiance is good, compact-sized, left-right rotary pattern switching
Simply.
The utility model uses following technical scheme to solve above-mentioned technical problem:
A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S is situated between comprising upper layer medium substrate, lower layer
Matter substrate, the arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch, 2N RF switch diode, N+1 it is snakelike walk
Line inductance, N+1 pad, annular ground plate, N number of metal column, coaxial feed probe and one point of N power splitter, N are more than or equal to 3
Natural number；
The upper layer medium substrate, layer dielectric substrate are circle, coaxial arrangement；
The arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch, N+1 snakelike trace inductances, N+1 weld
Disk is mounted on the upper surface of the upper layer medium substrate；
The arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch radius are identical, staggeredly interval attachment cyclization
Shape, and long the distance between arc-shaped radiation patch and adjacent short arc-shaped radiation patch are equal；
It is electrical by RF switch diode between the arc-shaped radiation patch of length and adjacent short arc-shaped radiation patch
It is connected, and the biased direction of adjacent radio frequency switching diode is consistent；
N number of pad in the N+1 pad by N number of snakelike trace inductance respectively with N number of arc-shaped radiation of length
The isogonism bisector position of patch is corresponding to be connected, and one end of N number of pad and extraneous DC power supply is electrically connected；The N+1
Remaining pad passes through the isogonism bisector position of 1 snakelike trace inductance and any one short arc-shaped radiation patch in pad
It is connected, the other end of the pad and extraneous DC power supply is electrically connected；
The upper layer medium substrate is correspondingly provided with N number of confession metal column at N number of short arc-shaped radiation patch and wears
The through-hole crossed；
One point of N power splitter include N number of strip patch, N number of strip patch in the same plane, one end it is equal
It is connected, other end diverging, and the angle between neighboring strips shape patch is equal；
One point of N power splitter is mounted on the upper surface of the layer dielectric substrate, center and layer dielectric substrate
The center of circle is overlapped；
N number of metal column is arranged between upper layer medium substrate, layer dielectric substrate；Distinguish one end of N number of metal column
Through-hole and N number of short arc-shaped radiation patch in upper layer medium substrate correspond welding, the other end and N number of strip
Shape patch corresponds welding far from the one end in the layer dielectric substrate center of circle；
The annular ground plate is mounted on the lower surface of the layer dielectric substrate, and annular ground plate and layer dielectric base
Plate is coaxial；
The layer dielectric substrate, annular ground plate the center point be equipped with and pass through for the coaxial feed probe inner conductor
Through-hole, the through-hole radius on annular ground plate is greater than the through-hole radius on layer dielectric substrate；
The via hole for being connected with the coaxial feed probe inner conductor is equipped at the center of one point of three power splitter；
The inner conductor of the coaxial feed probe sequentially passes through through-hole, the annular ground of the layer dielectric substrate the center point
The through-hole of plate the center point is connected with the via hole at one point of three power splitter center；
The outer conductor of the coaxial feed probe is connected with annular ground plate.
It is further excellent as a kind of compact Circular polarized omni-directional reconfigurable antenna for working in BDS-1 S of the utility model
Change scheme, the value of N are 3.
It is further excellent as a kind of compact Circular polarized omni-directional reconfigurable antenna for working in BDS-1 S of the utility model
The height of change scheme, the metal column is greater than the sum of upper layer medium substrate, the thickness of layer dielectric substrate.
It is further excellent as a kind of compact Circular polarized omni-directional reconfigurable antenna for working in BDS-1 S of the utility model
Change scheme, the axis of the metal column are vertical with the upper layer medium substrate, layer dielectric substrate respectively.
When work, metal column powers on the raw vertically polarized wave of miscarriage, forms the radiation of omnidirectional's vertical polarization in far field, length is arc-shaped
Radiation patch and short arc-shaped radiation patch power on the electric current loop of manifold horizontally, form omnidirectional's horizontal polarization spoke in far field
It penetrates.Metal column and long arc-shaped radiation patch and short arc-shaped radiation patch form about 90 degree intrinsic of phase difference, adjust
Antenna size meets the amplitude ratio of both vertically and horizontally electric field close to 1, then meets the condition of circular polarisation formation: two
The amplitude of a quadrature component is equal, and 90 degree of phase phase difference.Generating positive and negative voltage by changing DC bias circuit switches RF switch
The cut-off or on state of diode.When the DC power supply terminal voltage that pad corresponding with the arc-shaped radiation patch of N number of length is connected
When meeting the forward bias voltage of RF switch diode, Antenna Operation in omnidirectional's left-hand circular polarization mode, when with N number of long circular arc
When the connected DC power supply terminal voltage of the corresponding pad of shape radiation patch meets the reverse bias voltage of RF switch diode, day
Line works in omnidirectional's right-handed circular polarization mode.
The utility model compared with the prior art by using the above technical solution, has following technical effect that
A. novel omnidirectional's left-right-hand circular polarization reconfigurable antenna is planar microstrip paster structure in addition to metal column, is used
Snakelike cabling distributed inductance obstructs AC signal instead of lumped inductance, and PCB mask-making technology is i.e. processable, is easily integrated.
B. novel omnidirectional's left-right-hand circular polarization reconfigurable antenna only needs positive and negative univoltage while controlling 2N RF switch
Diode reduces processing complexity and aerial loss compared with existing omnidirectional's left-right-hand circular polarization reconfigurable antenna.
C. novel omnidirectional's left-right-hand circular polarization reconfigurable antenna structure is simple, and introducing lamped element is few, N number of long circular arc
Shape radiation patch and N number of short arc patch and N number of RF switch diode form an annulus, while keeping antenna structure compact
There is good Circular polarized omni-directional radiance.
Detailed description of the invention
Fig. 1 is the structural stratification schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model；
Fig. 3 is the top view of the utility model；
Fig. 4 is the structural schematic diagram of one point of three power splitter and the cooperation of layer dielectric substrate in the utility model；
Fig. 5 is the structural schematic diagram of annular ground plate and the cooperation of layer dielectric substrate in the utility model；
Fig. 6 is the utility model embodiment returning in 2.4 GHz-2.6 gigahertz frequency ranges in left-hand circular polarization state
Wave loss figure；
Fig. 7 is the utility model embodiment returning in 2.4 GHz-2.6 gigahertz frequency ranges in left-hand circular polarization state
Wave loss figure；
Fig. 8 is the utility model embodiment axis ratio figure of left-hand circular polarization in horizontal plane in BDS-1 S center frequency points；
Fig. 9 is the utility model embodiment axis ratio figure of right-handed circular polarization in horizontal plane in BDS-1 S center frequency points；
Figure 10 be the utility model embodiment in BDS-1 S center frequency points left-hand circular polarization in the radiation side of vertical plane
Xiang Tu；
Figure 11 be the utility model embodiment in BDS-1 S center frequency points left-hand circular polarization in the radiation side of horizontal plane
Xiang Tu；
Figure 12 be the utility model embodiment in BDS-1 S center frequency points right-handed circular polarization in the radiation side of vertical plane
Xiang Tu；
Figure 13 be the utility model embodiment in BDS-1 S center frequency points right-handed circular polarization in the radiation side of horizontal plane
Xiang Tu.
In figure, the arc-shaped radiation patch of 1- long, the short arc-shaped radiation patch of 2-, the snakelike trace inductance of 3-, 4- pad, 5- is short
RF switch diode, 6- upper layer medium substrate, the through-hole in 7- upper layer medium substrate, 8- metal column, 9- mono- divide N power splitter,
10- layer dielectric substrate, the through-hole of 11- layer dielectric substrate the center point, 12- annular ground plate, 13- annular ground plate the center point
Through-hole, 14- coaxial feed probe, the inner conductor of 15- coaxial feed probe, the outer conductor of 16- coaxial feed probe.
Specific embodiment
The technical solution of the utility model is described in further detail with reference to the accompanying drawing:
As shown in Figure 1 and Figure 2, the utility model discloses a kind of compact Circular polarized omni-directionals for working in BDS-1 S to weigh
Structure antenna, comprising upper layer medium substrate, layer dielectric substrate, the arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch,
2N RF switch diode, N+1 snakelike trace inductances, N+1 pad, annular ground plate, N number of metal columns, coaxial feed
Probe and one point of N power splitter, N are the natural number more than or equal to 3；
The upper layer medium substrate, layer dielectric substrate are circle, coaxial arrangement.
As shown in figure 3, the arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch, N+1 snakelike cablings electricity
Sense, N+1 pad are mounted on the upper surface of the upper layer medium substrate；
The arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch radius are identical, staggeredly interval attachment cyclization
Shape, and long the distance between arc-shaped radiation patch and adjacent short arc-shaped radiation patch are equal；
It is electrical by RF switch diode between the arc-shaped radiation patch of length and adjacent short arc-shaped radiation patch
It is connected, and the biased direction of adjacent radio frequency switching diode is consistent；
N number of pad in the N+1 pad by N number of snakelike trace inductance respectively with N number of arc-shaped radiation of length
The isogonism bisector position of patch is corresponding to be connected, and one end of N number of pad and extraneous DC power supply is electrically connected；The N+1
Remaining pad passes through the isogonism bisector position of 1 snakelike trace inductance and any one short arc-shaped radiation patch in pad
It is connected, the other end of the pad and extraneous DC power supply is electrically connected；
The upper layer medium substrate is correspondingly provided with N number of confession metal column at N number of short arc-shaped radiation patch and wears
The through-hole crossed.
As shown in figure 4, one point of N power splitter includes N number of strip patch, N number of strip patch is same flat
On face, one end is connected, the other end dissipates, and the angle between neighboring strips shape patch is equal；
One point of N power splitter is mounted on the upper surface of the layer dielectric substrate, center and layer dielectric substrate
The center of circle is overlapped；
N number of metal column is arranged between upper layer medium substrate, layer dielectric substrate；Distinguish one end of N number of metal column
Through-hole and N number of short arc-shaped radiation patch in upper layer medium substrate correspond welding, the other end and N number of strip
Shape patch corresponds welding far from the one end in the layer dielectric substrate center of circle.
As shown in figure 5, the annular ground plate is mounted on the lower surface of the layer dielectric substrate, and annular ground plate and
Layer dielectric substrate is coaxial；
The layer dielectric substrate, annular ground plate the center point be equipped with and pass through for the coaxial feed probe inner conductor
Through-hole, the through-hole radius on annular ground plate is greater than the through-hole radius on layer dielectric substrate；
The via hole for being connected with the coaxial feed probe inner conductor is equipped at the center of one point of three power splitter；
The inner conductor of the coaxial feed probe sequentially passes through through-hole, the annular ground of the layer dielectric substrate the center point
The through-hole of plate the center point is connected with the via hole at one point of three power splitter center；
The outer conductor of the coaxial feed probe is connected with annular ground plate.
The metal column high-priority is greater than the sum of upper and lower level dielectric substrate thickness, and the value of N is preferably 3, upper and lower level medium
Angle where substrate between plane and N number of metal mast axis is preferably 90 degree.
When being below 3 with N for example:
It is 0.8 mm that the compact Circular polarized omni-directional reconfigurable antenna for working in BDS-1 S, which includes thickness, and radius is
The arc-shaped radiation patch of length and short arc-shaped radiation that the upper and lower level medium substrate of 19.7mm, upper layer medium substrate upper surface mount
Patch, layer dielectric upper surface of base plate mount one point of three power splitter, and lower surface mounts annular ground plate, and all central axis phases
It is overlapped；
It is 15.2 mm, the arc-shaped radiation patch of the length that inside radius is 12.2 mm that upper layer medium substrate upper surface, which mounts outer radius,
Piece and short arc-shaped radiation patch, the radian of long circular arc radiation patch are 84 degree, and the radian of short circular arc radiation patch is 10 degree, long
The radian spacing that RF switch diode is welded between circular arc radiation patch and short circular arc radiation patch is 8 degree；
Layer dielectric upper surface of base plate mounts three center 120 degree of one point of three power splitters being composed of rotational symmetry, single
The width of a power splitter is 2.5 mm, and length is 14.7 mm, and layer dielectric base lower surface mounts the circle that radius is 15.5 mm
Shape earth plate；
Upper layer medium substrate upper surface patch, layer dielectric substrate upper and lower surface patch are that medium substrate surface covers gold
Belong to layer, metal layer thickness is 0.035 mm；
Through upper layer medium substrate and short arc-shaped radiation patch, there are three the metal column that radius is 0.75 mm, Mei Gejin
Belong to column and connect one point of three power splitter end, the interval angles between each metal column are 120 degree, metal column disc central axis and
Layer dielectric substrate disc central axis distance is 13.7 mm；
Long arc-shaped radiation patch is connected between short arc-shaped patch by six RF switch diodes, single long circular arc
Shape radiation patch both ends pass through two RF switch diodes of connection respectively and connect the short arc-shaped radiation patch of adjacent two, penetrate
The forward voltage drop direction of frequency switching diode is arrangement counterclockwise；
The snakelike trace inductance shape size of four of upper layer medium substrate upper surface is consistent, wherein three snakelike cabling electricity
Sense one end is connected with three long arc-shaped radiation patch external arc isogonism bisector position, and the other end is connected with three pads.Separately
One snakelike trace inductance one end is connect with any one external arc isogonism bisector position of three short arc-shaped radiation patch, separately
One end is connected with a pad, and the size of pad is the mm of 1.5 mm × 1.5；
Between the center of one point of three power splitter, the center of annular ground plate, perforation is provided with coaxial feed probe, coaxial feed
Electric probe is standard SMA radio-frequency joint, including inner conductor and outer conductor, is insulating materials, the inner conductor between internal and external conductor
Perforation annular ground plate center and layer dielectric substrate center, via hole are connected to one point of three power splitter center, one point of three power splitter
Center is feeding point, and the outer conductor is connected with annular ground plate.
Specific structure geometric parameter is as follows:
Wherein R1 is long arc-shaped radiation patch and short arc-shaped radiation patch outer arc apart from upper layer medium substrate circle core shaft
The radius of line, R2 are long arc-shaped radiation patch and short arc-shaped radiation patch inner arc apart from upper layer medium substrate circle central axis
Radius, R3 are upper layer medium substrate radius, and R4 is upper layer medium substrate via hole circle central axis apart from upper layer medium substrate circle core shaft
The radius of line, R5 are layer dielectric substrate radius, and R6 is annular ground plate radius, and R7 is that pore radius, θ are crossed in annular ground plate center
1 is long arc-shaped radiation patch radian, and θ 2 is radian between long arc-shaped radiation patch and short arc-shaped radiation patch, and θ 3 is short circle
Arc radiation patch radian, θ 4 are the angle of each power splitter rotational symmetry of one point of three power splitter, and H1 is upper layer medium substrate thickness,
H2 is metal column height, and H3 is layer dielectric substrate thickness, and L1 is the length of one point of three each power splitter of power splitter, and W1 is one point
The width of each power splitter of three power splitters.
This works in the specific manufacturing process of the compact Circular polarized omni-directional reconfigurable antenna of BDS-1 S are as follows: chooses first
The medium substrate of corresponding parameter, upper layer medium substrate are single side metal-clad plate, and layer dielectric substrate is two-sided metal-clad plate.
In the long arc-shaped radiation patch of upper layer medium substrate upper surface metal layer manufacture, short arc-shaped radiation patch, snakelike trace inductance
And pad, one point of three power splitter is manufactured in layer dielectric upper surface of base plate metal layer, lower surface manufactures annular ground plate.By 6
RF switch diode is counterclockwise to be welded on long circular arc radiation patch and the radiation of short circular arc with each forward bias condition
Clearance position between patch.Metal column lower end is welded with one point of three power splitter, three ends, and upper layer medium substrate is run through in upper end
It is welded with short arc-shaped radiation patch.In the inner conductor perforation annular ground plate center of coaxial feed probe and layer dielectric substrate
The heart is welded to one point of three power splitter center by via hole, and one point of three power splitter center is feeding point, coaxial feed probe outer conductor
It is welded with annular ground plate.By three conducting wires respectively corresponding with the long arc-shaped radiation patch in upper layer medium substrate upper surface three
It is combined into a conducting wire after a pad solder, is connect with DC power supply one end, table on the DC power supply other end and upper layer medium substrate
The corresponding pad solder of the short circular arc radiation patch in face, constitutes complete omnidirectional's left-right-hand circular polarization reconfigurable antenna.
Fig. 6 Fig. 7 is the utility model embodiment in left-hand circular polarization state in 2.4 GHz-2.6 gigahertz frequency ranges
Return loss plot, -10 dB impedance bandwidths are 2.448 GHz-2.528 GHz, and center frequency point is 2.492 GHz.Fig. 8 and Fig. 9 are
Omnidirectional's axis of the utility model embodiment left-right-hand circular polarization horizontal plane in BDS-1 S centre frequency is than figure, average axis score
It Wei not 2.32 dB and 2.34 dB.Figure 10, Figure 11, Figure 12, Figure 13 are the utility model embodiment in BDS-1 S centre frequency
The gain pattern of vertical plane and horizontal plane, horizontal plane average gain is respectively 1.81 dBi and 1.80 when left-right-hand circular polarization
DBi, omnidirectional's out-of-roundness 0.03 dB and 0.04 dB, cross polarization is respectively 17.5 dB and 17.4dB than average value.
The utility model Circular polarized omni-directional radiance is good, be able to achieve omnidirectional left-right-hand circular polarization switching at runtime,
Simple and compact for structure, vertical polarization and the corresponding electric field magnitude of horizontal polarization can be adjusted individually.Entire antenna can be completely by general
Logical planar circuit processing technology is realized easy to process, low in cost, solves in the prior art that omnidirectional's left-right-hand circular polarization can
Structure is complicated for reconfigurable antenna, and big problem is lost in more introduce of RF switch diode, lumped inductance.
Those skilled in the art can understand that unless otherwise defined, all terms used herein (including skill
Art term and scientific term) there is meaning identical with the general understanding of those of ordinary skill in the utility model fields
Justice.It should also be understood that those terms such as defined in the general dictionary should be understood that with upper with the prior art
The consistent meaning of meaning hereinafter, and unless defined as here, will not with idealization or meaning too formal come
It explains.
Above-described specific embodiment, to the purpose of this utility model, technical scheme and beneficial effects carried out into
One step is described in detail, it should be understood that being not used to limit the foregoing is merely specific embodiment of the present utility model
The utility model processed, within the spirit and principle of the utility model, any modification, equivalent substitution, improvement and etc. done,
It should be included within the scope of protection of this utility model.
Claims (4)
1. a kind of compact Circular polarized omni-directional reconfigurable antenna for working in BDS-1 S, which is characterized in that include top dielectric base
Plate, layer dielectric substrate, the arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch, 2N RF switch diode, N+
1 snakelike trace inductance, N+1 pad, annular ground plate, N number of metal column, coaxial feed probe and one point of N power splitter, N are
Natural number more than or equal to 3；
The upper layer medium substrate, layer dielectric substrate are circle, coaxial arrangement；
The arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch, N+1 snakelike trace inductances, N+1 pad paste
Mounted in the upper surface of the upper layer medium substrate；
The arc-shaped radiation patch of N number of length, N number of short arc-shaped radiation patch radius are identical, staggeredly interval attachment circlewise, and
Long the distance between arc-shaped radiation patch and adjacent short arc-shaped radiation patch are equal；
It is electrically connected between the arc-shaped radiation patch of length and adjacent short arc-shaped radiation patch by RF switch diode,
And the biased direction of adjacent radio frequency switching diode is consistent；
N number of pad in the N+1 pad by N number of snakelike trace inductance respectively with N number of arc-shaped radiation patch of length
Isogonism bisector position it is corresponding be connected, one end of N number of pad and extraneous DC power supply is electrically connected；The N+1 pad
In remaining pad pass through the isogonism bisector position phase of 1 snakelike trace inductance and any one short arc-shaped radiation patch
Even, the other end of the pad and extraneous DC power supply is electrically connected；
The upper layer medium substrate is correspondingly provided at N number of short arc-shaped radiation patch N number of to be passed through for the metal column
Through-hole；
One point of N power splitter include N number of strip patch, N number of strip patch in the same plane, one end it is homogeneous
Even, other end diverging, and the angle between neighboring strips shape patch is equal；
One point of N power splitter is mounted on the upper surface of the layer dielectric substrate, the center of circle at center and layer dielectric substrate
It is overlapped；
N number of metal column is arranged between upper layer medium substrate, layer dielectric substrate；One end of N number of metal column is each passed through
Through-hole and N number of short arc-shaped radiation patch in upper layer medium substrate correspond welding, the other end and N number of strip patch
Piece corresponds welding far from the one end in the layer dielectric substrate center of circle；
The annular ground plate is mounted on the lower surface of the layer dielectric substrate, and annular ground plate and layer dielectric substrate are same
Axis；
The layer dielectric substrate, annular ground plate the center point be equipped with passed through for the coaxial feed probe inner conductor it is logical
Hole, the through-hole radius on annular ground plate are greater than the through-hole radius on layer dielectric substrate；
The via hole for being connected with the coaxial feed probe inner conductor is equipped at the center of one point of N power splitter；
The inner conductor of the coaxial feed probe sequentially passes through the through-hole of the layer dielectric substrate the center point, annular ground plate circle
Through-hole at the heart is connected with the via hole at one point of N power splitter center；
The outer conductor of the coaxial feed probe is connected with annular ground plate.
2. the compact Circular polarized omni-directional reconfigurable antenna according to claim 1 for working in BDS-1 S, feature exist
In the value of N is 3.
3. the compact Circular polarized omni-directional reconfigurable antenna according to claim 1 for working in BDS-1 S, feature exist
In the height of the metal column is greater than the sum of upper layer medium substrate, the thickness of layer dielectric substrate.
4. the compact Circular polarized omni-directional reconfigurable antenna according to claim 1 for working in BDS-1 S, feature exist
In the axis of the metal column is vertical with the upper layer medium substrate, layer dielectric substrate respectively.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820660094.9U CN208240873U (en) | 2018-05-04 | 2018-05-04 | A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820660094.9U CN208240873U (en) | 2018-05-04 | 2018-05-04 | A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S |
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| CN201820660094.9U Withdrawn - After Issue CN208240873U (en) | 2018-05-04 | 2018-05-04 | A kind of compact Circular polarized omni-directional reconfigurable antenna working in BDS-1 S |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110364810A (en) * | 2019-07-26 | 2019-10-22 | 哈尔滨工业大学 | A kind of compound restructural dielectric resonator antenna of three-dimensional |
| CN114243277A (en) * | 2021-11-30 | 2022-03-25 | 深圳市联洲国际技术有限公司 | Reconfigurable antenna |
| CN116632525A (en) * | 2023-07-20 | 2023-08-22 | 深圳华云时空技术有限公司 | Broadband double-frequency circularly polarized omnidirectional antenna applied to ranging and angle measurement scenes |
-
2018
- 2018-05-04 CN CN201820660094.9U patent/CN208240873U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN110364810A (en) * | 2019-07-26 | 2019-10-22 | 哈尔滨工业大学 | A kind of compound restructural dielectric resonator antenna of three-dimensional |
| CN114243277A (en) * | 2021-11-30 | 2022-03-25 | 深圳市联洲国际技术有限公司 | Reconfigurable antenna |
| CN116632525A (en) * | 2023-07-20 | 2023-08-22 | 深圳华云时空技术有限公司 | Broadband double-frequency circularly polarized omnidirectional antenna applied to ranging and angle measurement scenes |
| CN116632525B (en) * | 2023-07-20 | 2023-09-15 | 深圳华云时空技术有限公司 | Broadband double-frequency circularly polarized omnidirectional antenna applied to ranging and angle measurement scenes |
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