CN207753162U - A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna - Google Patents
A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna Download PDFInfo
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- CN207753162U CN207753162U CN201721740509.5U CN201721740509U CN207753162U CN 207753162 U CN207753162 U CN 207753162U CN 201721740509 U CN201721740509 U CN 201721740509U CN 207753162 U CN207753162 U CN 207753162U
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- 230000010287 polarization Effects 0.000 title claims abstract description 42
- 230000005855 radiation Effects 0.000 claims abstract description 111
- 239000000758 substrate Substances 0.000 claims abstract description 66
- 239000000523 sample Substances 0.000 claims abstract description 23
- 239000004020 conductor Substances 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 3
- 239000002356 single layer Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 description 6
- 239000010410 layer Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012913 prioritisation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
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- 229910000679 solder Inorganic materials 0.000 description 1
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Abstract
The utility model discloses a kind of low section omnidirectional left-right-hand circular polarization reconfigurable antennas, including medium substrate, circular radiation patch, N number of double arched arm radiation patch, 2N RF switch diode, N+1 chip inductor, N number of pad, annular ground plate, N number of short-circuit column, coaxial feed probe and DC power supply；Annular ground plate is equipped with annular slot, is classified as interior patch and outer patch；Upper surface circular radiation patch is connected by the RF switch diode of 2N mutual reverse bias with N number of double arched arm radiation patch；One end of DC power supply is connected with N number of pad of medium substrate upper surface, and the other end is connected with interior patch；It is equidistantly opened up there are three short-circuit column in the perforation of double arched arm patch isogonal lines, connects circular radiation patch, medium substrate and annular ground plate.The utility model Circular polarized omni-directional radiance is good, can realize that the left-right-hand circular polarization of omnidirectional switches, small, low section is lost, is easy to process, is of low cost.
Description
Technical field
The utility model is related to microwave technical field more particularly to a kind of restructural days of low section omnidirectional left-right-hand circular polarization
Line.
Background technology
The object that omnidirectional circular-polarized antenna even acutely swings or rolls in high-speed motion（Such as spacecraft, aircraft, automobile）
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
90 degree of line polarization wave is differed Deng, phase.Circularly polarized signal can be received by various linear polarized antennas, while circular polarized antenna can
To receive any linear polarization incoming wave, and it is left（It is right）Hand circular polarization antenna cannot receive the right side（It is left）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 etches 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 " realize that circular polarisation reconstructs in conjunction with dipole and loop aerial using 48 switching diodes.Two day
Line has used more switching diode to increase aerial loss.2015, Yi Fan et al. were delivered on AP-S
" Polarization Reconfigurable Omnidirectional Antenna Using Crossed Dipoles ",
Change the break-make for tilting 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
Cable architecture is complicated, big problem is lost in more introduce of lamped element, and it is restructural to provide a kind of low section omnidirectional left-right-hand circular polarization
Antenna, Circular polarized omni-directional radiance is good, and section is low, and left-right rotary pattern switching is simple.
The utility model uses following technical scheme to solve above-mentioned technical problem：
A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna, including medium substrate, circular radiation patch, N number of double
Arched arm radiation patch, 2N RF switch diode, N+1 chip inductor, N number of pad, annular ground plate, N number of short-circuit column,
Coaxial feed probe and DC power supply, N are the natural number more than or equal to 3；
The medium substrate is rounded, and the circular radiation patch, annular ground plate are mounted on the medium substrate respectively
Upper surface, lower surface, circular radiation patch, annular ground plate, medium substrate are coaxial, and annular ground plate radius be more than circle
Radiation patch radius；
Double arched arm radiation patch include the arched arm of two sections of concentric, inside and outside distributions, and the two of two sections of arched arms
End is respectively connected with；
N number of double arched arm radiation patch and the circular radiation patch are concentric, equal around the circular radiation patch
Even is mounted on the upper surface of the medium substrate, the both ends of N number of double arched arm radiation patch and the 2N radio frequency
Switching diode corresponds, is connected with the circular radiation patch by the 2N RF switch diode, and adjacent penetrates
Frequency switching diode reverse bias；
N number of pad is mounted on the upper surface of the medium substrate, passes through N number of chip inductor and described N number of double
The outer arcuate arm of arched arm radiation patch, which corresponds, to be connected；
The annular ground plate is equipped with annulus, and the annular ground plate is divided into and is mounted on the medium substrate
The interior patch and outer patch of lower surface；The interior patch is connected by a chip inductor with the outer patch；
Described DC power supply one end is connected with N number of pad respectively, and the other end is connected with the interior patch；
The circular radiation patch is equipped with N number of short-circuit via in the isogonal line of N number of double arched arm radiation patch, and
N number of short-circuit the distance between the via and the circular radiation patch center of circle are equal；
Be equipped on the medium substrate, annular ground plate and the circular radiation patch on N number of short-circuit via one it is a pair of
The short-circuit via answered；
N number of short-circuit column is arranged in a one-to-one correspondence in N number of short-circuit via of circular radiation patch, by circular radiation patch
N number of short-circuit via and N number of short-circuit via of N number of short-circuit via of the medium substrate, annular ground plate connect one to one；
The medium substrate, annular ground plate circle centre position be equipped with passed through for the coaxial feed probe inner wire it is logical
Hole, the circle centre position of the circular radiation patch are equipped with the via for being connected with the coaxial feed probe inner wire；
The inner wire of the coaxial feed probe pass through the medium substrate, annular ground plate circle centre position through-hole, and
The via of the circle centre position of the circular radiation patch is connected；
The outer conductor of the coaxial feed probe is connected with annular ground plate.
As a kind of further prioritization scheme of low section omnidirectional left-right-hand circular polarization reconfigurable antenna of the utility model, institute
It is single-layer medium substrate to state medium substrate.
As a kind of further prioritization scheme of low section omnidirectional left-right-hand circular polarization reconfigurable antenna of the utility model, N
Value be 3.
When work, the radiation that circular radiation patch and annular ground plate generate is cancelled out each other, in circular radiation patch edges
Corner cut direction forms equivalent magnetic current source, radiates vertically polarized wave, equivalent current source, spoke are formed in double arched arm radiation patch
Penetrate horizontal polarized wave.Circular polarization radiation patch and double arched arm radiation patch form a capacitor with annular ground plate, one
90 ° of intrinsic phase differences of charge and discharge electric forming in a period, adjust antenna size meet two quadrature components amplitude it is equal, can be with
In far-field radiation circularly polarised wave.Positive back bias voltage by changing direct-flow biasing circuit can switch the conducting of RF switch diode
Or cut-off state, switch antenna left-right-hand circular polarization pattern.
The utility model has the following technical effects using above technical scheme is compared with the prior art：
A. novel omnidirectional's left-right-hand circular polarization reconfigurable antenna need to only put feed, need not increase 90 ° of phase shifter feeds outside
Network, while entire antenna is planar structure, section is low, is easily integrated.
B. novel omnidirectional's left-right-hand circular polarization reconfigurable antenna only needs single line while controlling six two poles of RF switch
Pipe 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 is simple in structure, and introducing lamped element is few, increases antenna
The centered rotational symmetry of structure makes antenna have good Circular polarized omni-directional radiance.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the vertical view of the utility model；
Fig. 3 is the structural schematic diagram of annular ground plate and medium substrate cooperation in the utility model；
Fig. 4 is the utility model embodiment axis ratio figure of left-hand circular polarization in horizontal plane in 2492 MHz；
Fig. 5 is the utility model embodiment axis ratio figure of right-handed circular polarization in horizontal plane in 2492 MHz；
Fig. 6 is the utility model embodiment antenna pattern of left-hand circular polarization in vertical plane in 2492 MHz；
Fig. 7 is the utility model embodiment antenna pattern of left-hand circular polarization in horizontal plane in 2492 MHz；
Fig. 8 is the utility model embodiment antenna pattern of right-handed circular polarization in vertical plane in 2492 MHz；
Fig. 9 is the utility model embodiment antenna pattern of right-handed circular polarization in horizontal plane in 2492 MHz.
In figure, 1- medium substrates, 2- circular radiation patches, the bis- arched arm radiation patch of 3-, 4- annular ground plates, 5- short circuits
Column, 6- coaxial feed probes, 7- RF switch diodes, the chip inductor of 8- medium substrates upper surface, 9- pads, 10- annulars
Gap, the chip inductor of 11- medium substrates lower surface, the inner wire of 12- coaxial feed probes, 13- coaxial feed probes it is outer
Conductor.
Specific implementation mode
The technical solution of the utility model is described in further detail below in conjunction with the accompanying drawings：
As shown in Figure 1, Figure 2, Figure 3 shows, the utility model discloses a kind of restructural days of low section omnidirectional left-right-hand circular polarization
Line, including medium substrate, circular radiation patch, N number of double arched arm radiation patch, 2N RF switch diode, N+1 patch
Inductance, N number of pad, annular ground plate, N number of short-circuit column, coaxial feed probe and DC power supply, N are the nature more than or equal to 3
Number；
The medium substrate is rounded, and the circular radiation patch, annular ground plate are mounted on the medium substrate respectively
Upper surface, lower surface, circular radiation patch, annular ground plate, medium substrate are coaxial, and annular ground plate radius be more than circle
Radiation patch radius；
Double arched arm radiation patch include the arched arm of two sections of concentric, inside and outside distributions, and the two of two sections of arched arms
End is respectively connected with；
N number of double arched arm radiation patch and the circular radiation patch are concentric, equal around the circular radiation patch
Even is mounted on the upper surface of the medium substrate, the both ends of N number of double arched arm radiation patch and the 2N radio frequency
Switching diode corresponds, is connected with the circular radiation patch by the 2N RF switch diode, and adjacent penetrates
Frequency switching diode reverse bias；
N number of pad is mounted on the upper surface of the medium substrate, passes through N number of chip inductor and described N number of double
The outer arcuate arm of arched arm radiation patch, which corresponds, to be connected；
The annular ground plate is equipped with annulus, and the annular ground plate is divided into and is mounted on the medium substrate
The interior patch and outer patch of lower surface；The interior patch is connected by a chip inductor with the outer patch；
Described DC power supply one end is connected with N number of pad respectively, and the other end is connected with the interior patch；
The circular radiation patch is equipped with N number of short-circuit via in the isogonal line of N number of double arched arm radiation patch, and
N number of short-circuit the distance between the via and the circular radiation patch center of circle are equal；
Be equipped on the medium substrate, annular ground plate and the circular radiation patch on N number of short-circuit via one it is a pair of
The short-circuit via answered；
N number of short-circuit column is arranged in a one-to-one correspondence in N number of short-circuit via of circular radiation patch, by circular radiation patch
N number of short-circuit via and N number of short-circuit via of N number of short-circuit via of the medium substrate, annular ground plate connect one to one；
The medium substrate, annular ground plate circle centre position be equipped with passed through for the coaxial feed probe inner wire it is logical
Hole, the circle centre position of the circular radiation patch are equipped with the via for being connected with the coaxial feed probe inner wire；
The inner wire of the coaxial feed probe pass through the medium substrate, annular ground plate circle centre position through-hole, and
The via of the circle centre position of the circular radiation patch is connected；
The outer conductor of the coaxial feed probe is connected with annular ground plate.
The medium substrate is preferably single-layer medium substrate, and the value of N is preferably 3.
It is illustrated when being below 3 with N：
Low section omnidirectional left-right-hand circular polarization reconfigurable antenna includes that thickness is 2 mm, and radius is the medium base of 24.8mm
Plate, the circular radiation patch of medium substrate upper surface attachment and double arched arm radiation patch, the annular ground plate of lower surface attachment,
And disc central axis coincides；
Medium substrate upper surface mounts the circular radiation patch that radius is 14.5 mm and double arched arm radiation patch, following table
Face paste dress radius is that the annular ground plate of 15.5 mm is the metal-clad of medium substrate surface, metal layer thickness 0.035
mm；
Through annular ground plate, medium substrate and circular radiation patch there are three short-circuit column, short-circuit column is that radius is 0.4
The metal column of mm is equally spaced along double arched arm patch isogonal line directions, and the interval angles between each short circuit column are 120 degree,
Short-circuit column disc central axis is 4 mm with medium substrate disc central axis distance；
Between the center of circular radiation patch, the center of the sub- metal patch of lower layer's circular-shaped monopole, perforation is provided with coaxial feed
Electric probe, coaxial feed probe are standard SMA radio-frequency joints, including inner wire and outer conductor, are insulation material between internal and external conductor
Material, the inner wire 12 penetrates through annular ground plate center and medium substrate center, via are connected to circular radiation patch center, circle
Shape radiation patch center is distributing point, and the outer conductor is connected with annular ground plate；
The identical double arched arm radiation patch of three structures are distributed in circular radiation patch edges in center rotational symmetry, single
The radian of a double arched arm radiation patch is 110 degree.Single double arched arm radiation patch by both ends be connected inside and outside parallel list
Arched arm forms, and the width of inside and outside single-arc shaped arm is 1 mm, and inner arc arm is 2.5 mm at a distance from circular radiation patch；
RF switch diode double arcs identical as three structures that circular radiation patch passes through six mutual reverse bias
Arm radiation patch is connected, and single double arched arm radiation patch both ends are separately connected two RF switch diodes, RF switch
One forward voltage drop direction of diode is the double arched arm radiation patch of circular radiation patch flow direction, another forward voltage drop direction is
Double arched arm radiation patch flow to circular radiation patch；
Three chip inductor one end of medium substrate upper surface outer single-arc shaped with three double arched arm radiation patch respectively
Arm connects, and three chip inductor other ends are connected with three medium substrate upper surface pads, and the size of pad is 1.5
mm×1.5 mm；
The annular slot of barrier exchange, the inner circle radius in gap are provided on the annular ground plate of medium substrate lower surface attachment
For 0.75 mm, exradius is 0.85 mm, and annular slot disc central axis is with medium substrate disc central axis distance
11.8 mm.One end of DC power supply is connected with three pads of the medium substrate upper surface, the other end and patch in annular slot
Piece is connected；
The chip inductor of medium substrate lower surface is across annular slot and patch phase outside patch in annular slot and annular slot
Even.
Concrete structure geometric parameter is as follows：
Wherein R1 is circular radiation patch radius, and R2 is short-circuit column radius, and R3 is annular ground plate radius, and R4 is medium base
Plate radius, W1 are the width of double arched arm patches and RF switch diode junction, and W1c is the interior of double arched arm radiation patch
Arched arm width, W2c are the outer arcuate arm width of double arched arm radiation patch, and L1 is the inner arc arm of double arched arm radiation patch
At a distance from circular radiation patch edges, L2 is the distance between the inside and outside arched arm of double arched arm radiation patch, and a is short-circuit column
Disc central axis and medium substrate disc central axis distance, Pad_L are the length of side of square pads, and Pad_R is annular slot
Inner circle radius, Slot_L are the width of annular slot, and Slot_D is in annular slot disc central axis and medium substrate disc
Mandrel linear distance, θ 1 are the radian of single double arched arm radiation patch, and θ 2 is the interval between each double arched arm radiation patch
Radian.
The specific manufacturing process of the low section omnidirectional left-right-hand circular polarization reconfigurable antenna is：Corresponding parameter is chosen first
Medium substrate, medium substrate are two-sided metal-clad plate.Metal layer manufacture circular radiation patch, double arcs in medium substrate upper surface
Shape arm radiation patch and pad manufacture the annular slot on annular ground plate and earth plate in medium substrate lower surface metal layer.
6 RF switch diodes are welded on double arched arm radiation patch and circular radiation patch with each positive and negative reverse-bias state
Between clearance position.The chip inductor for 3 being located at medium substrate upper surface is welded on pad and double arched arm radiation patch
Outer arcuate arm between.The chip inductor for being located at medium substrate lower surface by 1 is welded on across annular slot in annular slot
Between conductor patch and annular slot outer conductor patch.Hole post is crossed to weld through medium substrate and upper lower metal layer.Coaxial feed
The inner wire perforation annular ground plate center of probe and medium substrate center, circular radiation patch center is welded to by via,
Circular radiation patch center is distributing point, and coaxial feed probe outer conductor is welded with annular ground plate.Three conducting wires are situated between respectively
Be combined into a conducting wire after three pad solders of matter upper surface of base plate, connect with DC power supply one end, the DC power supply other end with
Annular slot inner wire patch welds, and constitutes complete omnidirectional's left-right-hand circular polarization reconfigurable antenna.
Fig. 4 and Fig. 5 is the utility model embodiment omnidirectional's axis ratio of left-right-hand circular polarization in horizontal plane in 2492 MHz
Figure, average axis is than being respectively 1.24 dB and 1.25 dB.Fig. 6, Fig. 7, Fig. 8, Fig. 9 are the utility model embodiment in 2492 MHz
When vertical plane and horizontal plane gain pattern, 0.10 dB and 0.11 dB of omnidirectional's out-of-roundness, cross-pole when left-right-hand circular polarization
It is respectively -21.72 dB and -21.49 dB to change average value.
The utility model Circular polarized omni-directional radiance is good, can realize the left-right-hand circular polarization of omnidirectional switches, it is small, low to be lost
Section, entire antenna can be completely easy to process, of low cost by common planar circuit processing technology realization, solve existing skill
Shu Zhong omnidirectionals left-right-hand circular polarization reconfigurable antenna is complicated, and big problem is lost in more introduce of lamped element.
Those skilled in the art of the present technique are it is understood that unless otherwise defined, all terms used herein（Including skill
Art term and scientific terminology）With meaning identical with the general understanding of the 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 the meaning of idealization or too formal come
It explains.
Above-described specific implementation mode, to the purpose of this utility model, technical solution and advantageous effect carried out into
One step is described in detail, it should be understood that the foregoing is merely specific embodiment of the present utility model, is not used to limit
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 (3)
1. a kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna, which is characterized in that pasted comprising medium substrate, circular radiation
Piece, N number of double arched arm radiation patch, 2N RF switch diode, N+1 chip inductor, N number of pad, annular ground plate, N
A short circuit column, coaxial feed probe and DC power supply, N are the natural number more than or equal to 3；
The medium substrate is rounded, and the circular radiation patch, annular ground plate are mounted on the upper of the medium substrate respectively
Surface, lower surface, circular radiation patch, annular ground plate, medium substrate are coaxial, and annular ground plate radius is more than circular radiation
Patch radius；
Double arched arm radiation patch include the arched arm of two sections of concentric, inside and outside distributions, and the both ends of two sections of arched arms point
Xiang Lian not；
N number of double arched arm radiation patch and the circular radiation patch are concentric, uniform around the circular radiation patch
It is mounted on the upper surface of the medium substrate, the both ends of N number of double arched arm radiation patch and the 2N RF switch
Diode corresponds, is connected with the circular radiation patch by the 2N RF switch diode, and adjacent radio frequency is opened
Close diode reverse biased；
N number of pad is mounted on the upper surface of the medium substrate, by N number of chip inductor and N number of double arcs
The outer arcuate arm of arm radiation patch, which corresponds, to be connected；
The annular ground plate is equipped with annulus, and the annular ground plate is divided into and is mounted on the medium substrate following table
The interior patch and outer patch in face；The interior patch is connected by a chip inductor with the outer patch；
Described DC power supply one end is connected with N number of pad respectively, and the other end is connected with the interior patch；
The circular radiation patch is equipped with N number of short-circuit via in the isogonal line of N number of double arched arm radiation patch, and described
N number of short circuit the distance between via and the circular radiation patch center of circle are equal；
Be equipped on the medium substrate, annular ground plate and the circular radiation patch on N number of short-circuit via it is one-to-one
Short-circuit via；
N number of short-circuit column is arranged in a one-to-one correspondence in N number of short-circuit via of circular radiation patch, by the N of circular radiation patch
N number of short-circuit via of a short circuit via and the medium substrate, annular ground plate N number of short-circuit via connect one to one；
The medium substrate, annular ground plate circle centre position be equipped with the through-hole passed through for the coaxial feed probe inner wire,
The circle centre position of the circular radiation patch is equipped with the via for being connected with the coaxial feed probe inner wire；
The inner wire of the coaxial feed probe passes through the medium substrate, the through-hole of circle centre position of annular ground plate and described
The via of the circle centre position of circular radiation patch is connected；
The outer conductor of the coaxial feed probe is connected with annular ground plate.
2. low section omnidirectional according to claim 1 left-right-hand circular polarization reconfigurable antenna, which is characterized in that the value of N is
3。
3. low section omnidirectional according to claim 1 left-right-hand circular polarization reconfigurable antenna, which is characterized in that the medium
Substrate is single-layer medium substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740509.5U CN207753162U (en) | 2017-12-14 | 2017-12-14 | A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721740509.5U CN207753162U (en) | 2017-12-14 | 2017-12-14 | A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207753162U true CN207753162U (en) | 2018-08-21 |
Family
ID=63148424
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721740509.5U Withdrawn - After Issue CN207753162U (en) | 2017-12-14 | 2017-12-14 | A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978861A (en) * | 2017-12-14 | 2018-05-01 | 南京航空航天大学 | A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna |
| CN109831842A (en) * | 2019-02-01 | 2019-05-31 | 上海点为智能科技有限责任公司 | RF energy radiation conduction mechanism and the device for using the mechanism |
| CN109860986A (en) * | 2019-01-23 | 2019-06-07 | 电子科技大学 | A kind of frequency reconfigurable microstrip antenna based on ring radiation patch |
| CN114039202A (en) * | 2021-11-03 | 2022-02-11 | 北京万集科技股份有限公司 | Antenna |
| CN114039202B (en) * | 2021-11-03 | 2024-05-14 | 北京万集科技股份有限公司 | Antenna |
-
2017
- 2017-12-14 CN CN201721740509.5U patent/CN207753162U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107978861A (en) * | 2017-12-14 | 2018-05-01 | 南京航空航天大学 | A kind of low section omnidirectional left-right-hand circular polarization reconfigurable antenna |
| CN107978861B (en) * | 2017-12-14 | 2023-11-07 | 南京航空航天大学 | Low-profile full-left-right circular polarization reconfigurable antenna |
| CN109860986A (en) * | 2019-01-23 | 2019-06-07 | 电子科技大学 | A kind of frequency reconfigurable microstrip antenna based on ring radiation patch |
| CN109831842A (en) * | 2019-02-01 | 2019-05-31 | 上海点为智能科技有限责任公司 | RF energy radiation conduction mechanism and the device for using the mechanism |
| CN114039202A (en) * | 2021-11-03 | 2022-02-11 | 北京万集科技股份有限公司 | Antenna |
| CN114039202B (en) * | 2021-11-03 | 2024-05-14 | 北京万集科技股份有限公司 | Antenna |
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