CN106450738A - High-gain dual-circular-polarization flat antenna - Google Patents
High-gain dual-circular-polarization flat antenna Download PDFInfo
- Publication number
- CN106450738A CN106450738A CN201611063503.9A CN201611063503A CN106450738A CN 106450738 A CN106450738 A CN 106450738A CN 201611063503 A CN201611063503 A CN 201611063503A CN 106450738 A CN106450738 A CN 106450738A
- Authority
- CN
- China
- Prior art keywords
- circle
- gap
- polarization
- waveguide
- circular
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q13/00—Waveguide horns or mouths; Slot antennas; Leaky-waveguide antennas; Equivalent structures causing radiation along the transmission path of a guided wave
- H01Q13/08—Radiating ends of two-conductor microwave transmission lines, e.g. of coaxial lines, of microstrip lines
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
The invention provides a high-gain dual-circular-polarization flat antenna. The high-gain dual-circular-polarization flat antenna includes a metal support plate, a single layer radial line waveguide, and a feed network, wherein a radiation slot array is arranged on the upper surface of the radial line waveguide; the radial line waveguide includes multi-ring of concentric annular slots; each ring of concentric annular slot is obtained by enabling the center of circle of one linear polarized slot to rotate and copy by the same angle in the same direction in order; an annular slot is formed in the center of the upper surface of the radial line waveguide as a matched circular ring; four coaxial probes are distributed at the circumference of the concentric circles in the matched circular ring; and the feed network is formed through cascade connection of Wilkinson power dividers and a branch line hybrid network. The high-gain dual-circular-polarization flat antenna avoids from a huge feed power dividing structure, and is low in loss and high in efficiency of the antenna. The high-gain dual-circular-polarization flat antenna uses the single layer radial line waveguide to realize the dual-circular-polarization design, so that the structure is more simple, small and exquisite. Besides, in the required frequency range, the high-gain dual-circular-polarization flat antenna is provided with a stable radiation pattern, an extremely low cross polarization level, good echo loss and high transmit-receive isolation.
Description
Technical field
The invention belongs to antenna in radio communication system design technical field, especially a kind of high-gain double-circle polarization put down
Plate antenna.
Background technology
The twentieth century later stage eighties, radial line slot antenna (Radial Line Slot Antennas, RLSA) conduct
The high-gain satellite earth antenna of Ku wave band and be suggested, it has had the high efficiency of Waveguide slot antenna concurrently and microstrip antenna is low cuts open
The advantage in face.
From the higher mode decussation gap annular array of early stage, fill orthogonal gap array to two-layered medium, then to list
The layer orthogonal gap array of Filled Dielectrics, researchers have carried out continuous improvement, making property to the structure of radial line slot antenna
The level approximate with waveguide gap array can have been reached.It has been widely used in DBS direct satellite broadcasting TV receive-transmit system, and at a high speed
Wireless access, point to point link, vehicle anticollision radar and high power field of array antennas obtain application.
In satellite communication system, for effectively utilizes stationary orbit and frequency spectrum resource, exist in some division of period orbits
Frequency reuses, and this will produce interfering of signal in effective bandwidth, need to be received using different polarization modes for this
Signal.Therefore, design one pair enables the high-gain aerial that left-handed or right-handed circular polarization receives and becomes to defend in same frequency range
Necessity in star communication.Hideki Ueda in 2013 et al. connects two layers of radial line waveguides using 180 ° of E shape elbows and realizes
The design of double-circle polarization, but complex structure, difficulty of processing is big, and therefore the dual circularly polarized antenna of monolayer RADIAL waveguiding structure is just
Seem advantageous.
Content of the invention
It is an object of the invention to provide a kind of high-gain double-circle polarization plate aerial, it works in Ku wave band, including single
Layer RADIAL waveguide and microstrip feed network.
For achieving the above object, technical solution of the present invention is as follows：
A kind of high-gain double-circle polarization plate aerial, including：Metal profile, it is fixed on monolayer above metal profile
RADIAL waveguide, it is fixed on feeding network below metal profile, RADIAL waveguide top surface is provided with and runs through waveguide surface and cover
The radiating slot array of layers of copper；
Described radiating slot array includes the annular slot of multiple concentric, and every loop gap is by the gap of a linear polarization
Rotate the duplication of identical angle successively in the same direction around the center of circle of array and obtain, the gap of each circle uniformly arranges on the circle of place, phase
The gap number of angle=360 degree that adjacent gap rotates successively/each circle, the gap size on same circle is identical, from inner ring to
The size in outer ring gap is gradually increased；
From inner ring, the size to outer ring gap is gradually increased, and is to obtain uniform Aperture field distribution, obtaining maximum gain.
RADIAL waveguide top surface center is provided with one and runs through the annular slot of waveguide surface copper clad layers as coupling annulus；
4 coaxial probes are uniformly distributed on the circumference of coupling annulus internal concentric, and 4 coaxial probes are used for radially
Line waveguide feed, coaxial probe one end is goed deep in RADIAL waveguide by location hole, the other end is welded in feed by location hole
On the output port of network；
Feeding network is made up of Wilkinson power divider and the cascade of branch line hybrid network, and two of which Wilkinson work(divides
Utensil has four output ports, and two input ports of branch line hybrid network are connected respectively to two Wilkinson power dividers
On output port；Two sub-miniature A connectors connect the input of the Wilkinson power divider of feeding network respectively.
It is preferred that, often the wavelength being spaced apart 0.6 RADIAL waveguide between circle adjacent slits, described is spaced apart
The distance between each gap midpoint.0.6 wavelength in interval is in order to avoid graing lobe and to reduce the mutual coupling between gap；
It is preferred that, described radiating slot array includes the concentric annular slot of 5 circles.Gap array is enclosed in setting 5
For the 24dBi required for obtaining about gain.
It is preferred that, left-hand circular polarization feed sub-miniature A connector, right-handed circular polarization feed sub-miniature A connector connect feed respectively
The input of the Wilkinson power divider of network, so feeds to whole antenna.
It is preferred that, each gap is 43- with the acute angle of the RADIAL sending from the radiating slot array center of circle
47 degree.Left-hand circular polarization so can be made roughly the same with the gain of right-handed circular polarization.
It is preferred that, it is provided with the cavity of projection below metal profile, feeding network is fixed on by metallic screw
Described cavity bottom.It is so for the ease of installation feeding network and to feed sub-miniature A connector, right-handed circular polarization for left-hand circular polarization
Enough enough spaces are stayed in the welding of feed sub-miniature A connector.
It is preferred that, 4 coaxial probes are uniformly distributed in the circumference of the concentric circular mating annulus inner radial 5mm
On.Required stable field mode so can have been encouraged in RADIAL waveguide.
It is preferred that, RADIAL waveguide is fixed on the upper surface of metal profile by plastic screw.So diameter
Play a supporting role to line waveguide, prevent RADIAL waveguide from deforming because of external force；
It is preferred that, the spacing of the annular slot of the adjacent turn radial direction along the gap array center of circle is a radial direction
The wavelength of line waveguide, so that emittance in-phase stacking, described spacing refers to the distance between adjacent slits midpoint.
Traditional double-circle polarization radial line slot antenna using double-deck waveguiding structure, the present invention in order to simplify antenna structure,
Using monolayer RADIAL waveguide, by opening the gap array radiated electromagnetic wave of annular arrangement in upper surface.Different from traditional footpath
Adopt two mutually orthogonal gaps to as radiating element to line slot antenna, the present invention adopts the single gap of linear polarization to make
For radiating element, this element is replicated along central rotation and obtains annular slot array, by order rotation technique (Sequential
Rotation Technique) realize the radiation of circularly polarised wave.
The present invention adopts four probes to RADIAL waveguide feed, with branch line hybrid network (branch-line
Hybrid) it is unit, according to Bulter matrix design feeding network, control probe feed phase place, produce suitable in the waveguide respectively
Hour hands rotation field mode and rotate counterclockwise field mode, thus achieve double-circle polarization RLSA by monolayer RADIAL waveguiding structure
Design.
The present invention, in order to improve Antenna Impedance Matching bandwidth, opens an annular slot in RADIAL waveguide top surface center,
Adjust impedance matching in the way of loading capacitance, widen bandwidth.
The invention has the advantages that：
(1) compared with conventional double-circle polarization microstrip antenna, present invention leaky-pipe form radiated electromagnetic wave, it is to avoid
Huge feed work(separation structure, loss is little, and antenna efficiency is high.
(2) compared with conventional double-circle polarization radial line slot antenna, it is double that the present invention adopts monolayer RADIAL waveguide to realize
Circular polarisation designs, and structure is more simply compact, easy processing, low cost.
(3) open an annulus in radial waveguide upper surface center, as coupling annulus, effectively widen antenna impedance
Coupling bandwidth.
(4) in required frequency range, the present invention has stable antenna pattern, extremely low cross polarization level, good
Return loss and receive-transmit isolation.
Brief description
Fig. 1 is the top view of present configuration；
Fig. 2 is the side view of present configuration；
Fig. 3 is the upward view of the present invention；
Fig. 4 is the feed network structures figure of the present invention；
Fig. 5 (a) is the main polarization and Cross polarization pattern in antenna left-hand circular polarization E face；
Fig. 5 (b) is the main polarization and Cross polarization pattern in antenna left-hand circular polarization H face；
Fig. 6 (a) is the main polarization and Cross polarization pattern in antenna right-handed circular polarization E face；
Fig. 6 (b) is the main polarization and Cross polarization pattern in antenna right-handed circular polarization H face；
Fig. 7 is that antenna left-hand circular polarization E face, the axle in H face compare directional diagram；
Fig. 8 is that antenna right-handed circular polarization E face, the axle in H face compare directional diagram；
Fig. 9 is antenna ends oral reflex charts for finned heat；
Figure 10 is antenna ends mouth isolation curve chart；
Figure 11 is the change curve with frequency for the gain of antenna；
Figure 12 is the axle of antenna than the change curve with frequency.
Wherein 1 is RADIAL waveguide, and 2 is radiating slot array, and 3 is coupling annulus, and 4 is coaxial probe, and 5 is plastic spiral
Nail, 6 is metal profile, and 7 is feeding network, and 8 feed sub-miniature A connector for left-hand circular polarization, and 9 connect for right-handed circular polarization feed SMA
Head, 10 is metallic screw, and 11 is Wilkinson power divider, and 12 is branch line hybrid network.
Specific embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art can be by this specification
Disclosed content understands other advantages and effect of the present invention easily.The present invention can also be by addition different concrete realities
The mode of applying is carried out or applies, and the every details in this specification can also be based on different viewpoints and application, without departing from
Carry out various modifications and changes under the spirit of the present invention.
Traditional double-circle polarization radial line slot antenna using double-deck waveguiding structure, the present invention in order to simplify antenna structure,
Using monolayer RADIAL waveguide, by opening the gap array radiated electromagnetic wave of annular arrangement in upper surface.
Adopt two mutually orthogonal gaps to as radiating element different from traditional RLSA antenna, the present invention adopts line
The single gap of polarization, as radiating element, this element is replicated along central rotation and is obtained an annulus battle array, by order
Rotation technique (Sequential Rotation Technique) realizes the radiation of circularly polarised wave.
As Figure 1-3, the high-gain double-circle polarization plate aerial of the present embodiment includes：Metal profile 6, it is fixed on gold
The monolayer RADIAL waveguide 1 belonging to gripper shoe 6 top is, be fixed on the feeding network 7 below metal profile 6, in RADIAL waveguide 1
Surface is provided with the radiating slot array 2 running through waveguide surface copper clad layers；
Described radiating slot array 2 includes the concentric annular slot of 5 circles, and every loop gap is by the gap of a linear polarization
Rotate the duplication of identical angle successively in the same direction around the center of circle of array and obtain, the gap of each circle uniformly arranges on the circle of place, phase
The gap number of angle=360 degree that adjacent gap rotates successively/each circle, the gap size on same circle is identical, from inner ring to
The size in outer ring gap is gradually increased；
From inner ring, the size to outer ring gap is gradually increased, and makes the energy coupling from waveguide by paracentral gap slightly weak,
The energy coupling from waveguide by antermarginal gap is slightly strong, thus reaching the effect of uniform Aperture distribution, obtains maximum gain.
RADIAL waveguide 1 upper surface center is provided with one and runs through the annular slot of waveguide surface copper clad layers as coupling annulus
3；Adjust impedance matching in the way of loading capacitance, widen bandwidth.
4 coaxial probes 4 are uniformly distributed on the circumference of concentric circular of coupling annulus 3 inner radial 5mm, so can be in footpath
Required stable field mode has been encouraged in line waveguide.4 coaxial probes 4 are used for RADIAL waveguide 1 is fed, coaxial probe
4 one end are goed deep in RADIAL waveguide 1 by location hole, the other end is welded on the output port of feeding network 7 by location hole；
The present invention adopts four coaxial probes to RADIAL waveguide feed, with branch line hybrid network (branch-line
Hybrid) it is unit, according to Bulter matrix design feeding network, control probe feed phase place, produce suitable in the waveguide respectively
Hour hands rotation field mode and rotate counterclockwise field mode, thus achieve double-circle polarization RLSA by monolayer RADIAL waveguiding structure
Design.
As shown in figure 4, feeding network 7 is made up of Wilkinson power divider 11 and branch line hybrid network 12 cascade, wherein
Two Wilkinson power dividers 11 have four output ports, and two input ports of branch line hybrid network 12 are connected respectively to
On the output port of two Wilkinson power dividers 11；Left-hand circular polarization feed sub-miniature A connector 8, right-handed circular polarization feed sub-miniature A connector
9 inputs connecting the Wilkinson power divider 11 of feeding network respectively, so feed to whole antenna.
Microstrip line be printed in thickness be 0.254mm, relative dielectric constant be on 2.2 dielectric-slab, when signal is by left-handed circle
During polarization feed sub-miniature A connector 8 input, through Wilkinson power divider 11 and branch line hybrid network 12, obtain four tunnel output letters
Number, four road phase of output signal successively decrease in 90 ° clockwise, by coaxial probe 4, radial waveguide 1 are fed, encourage in the waveguide
Act field mode two spaces, the time all orthogonal TM11 mode combinations that turn clockwise.Along the circumferential direction field amplitude is equal,
Along the circumferential direction there is linear change in phase place, therefore the circular lap gating system radiation left-hand circular polarization ripple of waveguide top surface；Work as signal
When being inputted by right-handed circular polarization feed sub-miniature A connector 9, four road phase of output signal successively decrease, by coaxial probe 4 in 90 ° counterclockwise
Rotate counterclockwise field mode has been encouraged in radial waveguide 1, therefore the annular slot battle array of waveguide top surface radiation right-handed circular polarization ripple.
The selection of RADIAL waveguide 1 thickness should ensure that the single electromagnetic wave of transmission in waveguide, takes the thickness to be in the present embodiment
5mm.
There is higher mode due near RADIAL waveguide core, in order to reduce the impact of higher mode, first lap gap array
Apart from one waveguide wavelength of distributing point.The spacing of the radial direction along gap array 2 center of circle for the annular slot of adjacent turn is one
The wavelength of RADIAL waveguide 1, so that emittance in-phase stacking.
Often the wavelength being spaced apart 0.6 RADIAL waveguide 1 between circle adjacent slits, described is spaced apart each gap midpoint
The distance between.0.6 wavelength in interval is in order to avoid graing lobe and to reduce the mutual coupling between gap；Often between circle adjacent slits
Interval arbitrarily can be chosen according to actual gap arrangement, only need to meet suppression graing lobe condition.
The present embodiment setting 5 circle gap arrays be for the 24dBi required for obtaining about gain.
Each gap of the present embodiment is 43-47 degree with the acute angle of the RADIAL sending from radiating slot array 2 center of circle.
Left-hand circular polarization so can be made roughly the same with the gain of right-handed circular polarization.
It is provided with the cavity of projection, feeding network 7 is fixed on institute by metallic screw 10 below the present embodiment metal profile 6
State cavity bottom.It is so for the ease of installation feeding network 7 and to feed sub-miniature A connector 8, right-handed circular polarization for left-hand circular polarization
Enough enough spaces are stayed in the welding of feed sub-miniature A connector 9.Left-hand circular polarization feed sub-miniature A connector 8 and right-handed circular polarization feed SMA connect
9 adopt commonly used 50 ohm of sub-miniature A connectors in microwave communication, can directly be connected with signal generator or receiver.
RADIAL waveguide 1 is fixed on the upper surface of metal profile 6 by plastic screw 5.So to RADIAL waveguide 1
To supporting role, prevent RADIAL waveguide 1 from deforming because of external force；
By above design, this antenna diameter is 200mm, a height of 12mm, and operating frequency is in 12GHz.
From Fig. 5 (a), (b), antenna left-hand circular polarization maximum gain is 24.16dBi；
From Fig. 6 (a), (b), antenna right-handed circular polarization maximum gain is 24.31dBi；
From fig.7, it can be seen that antenna left-hand circular polarization axle is than for 0.43dB；
As seen from Figure 8, antenna right-handed circular polarization axle is than for 0.19dB；
As seen from Figure 9, left-hand circular polarization feed sub-miniature A connector 8, right-handed circular polarization feed sub-miniature A connector 9 reflection coefficient are being observed
Frequency band range in below -10dB, bandwidth is more than 16.6%；
As seen from Figure 10, left-hand circular polarization feeds sub-miniature A connector 8, right-handed circular polarization feeds the isolation between sub-miniature A connector 9
It is below -10dB in the range of 11.2GHz-12.35GHz, carry a width of 7.4%；
From Figure 11, the 3dB gain bandwidth of left and right hand circular polarization ripple is all very wide, more than 13%；
From Figure 12, the axle of left and right hand circular polarization ripple is all more fine than performance, AR<The axial ratio bandwidth of 3dB all exceedes
16%；
Above-described embodiment only principle of the illustrative present invention and its effect, not for the restriction present invention.Any ripe
The personage knowing this technology all can carry out modifications and changes without prejudice under the spirit and the scope of the present invention to above-described embodiment.Cause
This, all those of ordinary skill in the art are completed under without departing from disclosed spirit and technological thought
All equivalent modifications or change, must be covered by the claim of the present invention.
Claims (9)
1. a kind of high-gain double-circle polarization plate aerial is it is characterised in that include：Metal profile (6), be fixed on metal support
Monolayer RADIAL waveguide (1) above plate (6), it is fixed on feeding network (7) below metal profile (6), RADIAL waveguide
(1) upper surface is provided with the radiating slot array (2) running through waveguide surface copper clad layers；Described radiating slot array (2) includes multi-turn
Concentric annular slot, every loop gap rotates identical angle by the gap of a linear polarization in the same direction successively around the center of circle of array
Degree replicates and obtains, and the gap of each circle uniformly arranges on the circle of place, angle=360 degree that adjacent slits rotate successively/each
The gap number of circle, the gap size on same circle is identical, and from inner ring, the size to outer ring gap is gradually increased；RADIAL waveguide
(1) upper surface center is provided with one and runs through the annular slot of waveguide surface copper clad layers as coupling annulus (3)；4 coaxial probes
(4) it is uniformly distributed on the circumference of coupling annulus (3) internal concentric, 4 coaxial probes (4) are used for RADIAL waveguide (1)
Feed, coaxial probe (4) one end is goed deep in RADIAL waveguide (1) by location hole, the other end is welded in feed by location hole
On the output port of network (7)；Feeding network (7) cascades structure by Wilkinson power divider (11) and branch line hybrid network (12)
Become, two of which Wilkinson power divider (11) has four output ports, two inputs of branch line hybrid network (12)
Mouth is connected respectively on the output port of two Wilkinson power dividers (11)；Two sub-miniature A connectors connect feeding network respectively
The input of Wilkinson power divider (11).
2. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：Often between circle adjacent slits
It is spaced apart the wavelength of 0.6 RADIAL waveguide (1), described be spaced apart the distance between each gap midpoint.
3. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：Described radiating slot array
(2) include the concentric annular slot of 5 circles.
4. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：Left-hand circular polarization feeds SMA
Joint (8), right-handed circular polarization feed the input that sub-miniature A connector (9) connects the Wilkinson power divider (11) of feeding network respectively.
5. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：Each gap with from radiating slot
The acute angle of the RADIAL that gap array (2) center of circle sends is 43-47 degree.
6. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：Below metal profile (6)
It is provided with the cavity of projection, feeding network (7) is fixed on described cavity bottom by metallic screw (10).
7. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：4 coaxial probes (4) are uniformly
It is distributed on the circumference of concentric circular of coupling annulus (3) inner radial 5mm.
8. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：RADIAL waveguide (1) is passed through
Plastic screw (5) is fixed on the upper surface of metal profile (6).
9. high-gain double-circle polarization plate aerial according to claim 1 it is characterised in that：The annular slot edge of adjacent turn
The spacing of the radial direction in gap array (2) center of circle is the wavelength of a RADIAL waveguide (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063503.9A CN106450738B (en) | 2016-11-28 | 2016-11-28 | High-gain double-circle polarization plate aerial |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611063503.9A CN106450738B (en) | 2016-11-28 | 2016-11-28 | High-gain double-circle polarization plate aerial |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106450738A true CN106450738A (en) | 2017-02-22 |
| CN106450738B CN106450738B (en) | 2019-08-23 |
Family
ID=58219804
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611063503.9A Expired - Fee Related CN106450738B (en) | 2016-11-28 | 2016-11-28 | High-gain double-circle polarization plate aerial |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106450738B (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104274A (en) * | 2017-04-06 | 2017-08-29 | 上海交通大学 | The wide angle array beamses scanning circular polarised array antenna in the broadband of low section |
| CN108242600A (en) * | 2018-01-04 | 2018-07-03 | 电子科技大学 | A kind of linear polarization pulse Small-slotted Planar Antenna Array |
| CN109121276A (en) * | 2017-06-22 | 2019-01-01 | 东京毅力科创株式会社 | antenna and plasma processing apparatus |
| CN109638443A (en) * | 2018-12-27 | 2019-04-16 | 东南大学 | A kind of plate Broadband circularly polarized antenna with symmetrical wave beam |
| CN110911811A (en) * | 2019-10-19 | 2020-03-24 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Dual-polarized array antenna capable of being realized by single dielectric plate |
| CN112134012A (en) * | 2020-10-20 | 2020-12-25 | 北京华通嘉业科技有限公司 | Circularly polarized antenna and circularly polarized array antenna |
| CN112909580A (en) * | 2021-01-26 | 2021-06-04 | 华南理工大学 | Low-profile circularly polarized equal-flux antenna module |
| CN115117634A (en) * | 2022-06-30 | 2022-09-27 | 电子科技大学 | High-gain circularly polarized beam scanning antenna with transmission super surface |
| CN115207607A (en) * | 2022-07-11 | 2022-10-18 | 南阳师范学院 | Low-coupling broadband radial line slot antenna |
| CN115332810A (en) * | 2022-07-28 | 2022-11-11 | 西安空间无线电技术研究所 | Flat-top beam radial waveguide slot array antenna and flat-top beam generation method |
| WO2024065506A1 (en) * | 2022-09-29 | 2024-04-04 | Huawei Technologies Co., Ltd. | Devices and methods for steering an electromagnetic beam having one or more orbital angular momentum modes |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012054815A (en) * | 2010-09-02 | 2012-03-15 | Hitachi Maxell Ltd | Directional array antenna apparatus |
| CN202949040U (en) * | 2012-10-25 | 2013-05-22 | 中国传媒大学 | Circular polarization radial slot antenna with distance from starting gap to center smaller than one waveguide wavelength |
-
2016
- 2016-11-28 CN CN201611063503.9A patent/CN106450738B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012054815A (en) * | 2010-09-02 | 2012-03-15 | Hitachi Maxell Ltd | Directional array antenna apparatus |
| CN202949040U (en) * | 2012-10-25 | 2013-05-22 | 中国传媒大学 | Circular polarization radial slot antenna with distance from starting gap to center smaller than one waveguide wavelength |
Non-Patent Citations (1)
| Title |
|---|
| 张娜曼: "共形径向线缝隙天线的研究与设计", 《中国优秀硕士论文全文数据库》 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107104274A (en) * | 2017-04-06 | 2017-08-29 | 上海交通大学 | The wide angle array beamses scanning circular polarised array antenna in the broadband of low section |
| CN109121276A (en) * | 2017-06-22 | 2019-01-01 | 东京毅力科创株式会社 | antenna and plasma processing apparatus |
| CN108242600A (en) * | 2018-01-04 | 2018-07-03 | 电子科技大学 | A kind of linear polarization pulse Small-slotted Planar Antenna Array |
| CN109638443A (en) * | 2018-12-27 | 2019-04-16 | 东南大学 | A kind of plate Broadband circularly polarized antenna with symmetrical wave beam |
| CN109638443B (en) * | 2018-12-27 | 2020-08-11 | 东南大学 | Flat broadband circularly polarized antenna with symmetrical wave beams |
| CN110911811B (en) * | 2019-10-19 | 2022-02-22 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Dual-polarized array antenna capable of being realized by single dielectric plate |
| CN110911811A (en) * | 2019-10-19 | 2020-03-24 | 中国电波传播研究所（中国电子科技集团公司第二十二研究所） | Dual-polarized array antenna capable of being realized by single dielectric plate |
| CN112134012A (en) * | 2020-10-20 | 2020-12-25 | 北京华通嘉业科技有限公司 | Circularly polarized antenna and circularly polarized array antenna |
| CN112909580A (en) * | 2021-01-26 | 2021-06-04 | 华南理工大学 | Low-profile circularly polarized equal-flux antenna module |
| US11742594B2 (en) | 2021-01-26 | 2023-08-29 | South China University Of Technology | Low-profile circularly polarized isoflux antenna module |
| CN115117634A (en) * | 2022-06-30 | 2022-09-27 | 电子科技大学 | High-gain circularly polarized beam scanning antenna with transmission super surface |
| CN115207607A (en) * | 2022-07-11 | 2022-10-18 | 南阳师范学院 | Low-coupling broadband radial line slot antenna |
| CN115332810A (en) * | 2022-07-28 | 2022-11-11 | 西安空间无线电技术研究所 | Flat-top beam radial waveguide slot array antenna and flat-top beam generation method |
| WO2024065506A1 (en) * | 2022-09-29 | 2024-04-04 | Huawei Technologies Co., Ltd. | Devices and methods for steering an electromagnetic beam having one or more orbital angular momentum modes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106450738B (en) | 2019-08-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106450738A (en) | High-gain dual-circular-polarization flat antenna | |
| JPH0629724A (en) | Improved microstrip antenna device for telephone communication especially by artificial satellite | |
| WO2011094121A1 (en) | Method and apparatus for tri-band feed with pseudo-monopulse tracking | |
| CN107611600A (en) | A kind of SIW annular slot antennas for producing bimodulus OAM vortex electromagnetic waves | |
| CN106532256A (en) | Broadband circularly polarized substrate integrated waveguide antenna | |
| CN209786198U (en) | circularly polarized microstrip array antenna with sequential rotation feed | |
| CN113193343B (en) | Ka frequency channel compact type high-efficiency broadband dual-circularly-polarized antenna | |
| Ruan et al. | A circularly polarized differentially fed transmission-line-excited magnetoelectric dipole antenna array for 5G applications | |
| IL243105A (en) | Source for parabolic antenna | |
| Sun et al. | The design of array antenna based on multi-modal OAM vortex electromagnetic wave | |
| CN108242600B (en) | Linearly polarized monopulse planar slot antenna | |
| Yang et al. | A novel 24-GHz series-fed patch antenna array for radar system | |
| CN111969335B (en) | Conformal dual-polarized two-dimensional single-pulse end-fire array antenna | |
| CN112688057A (en) | Broadband circularly polarized microstrip antenna based on crossed dipole | |
| Hua et al. | CPW-fed printed antenna array with conical beam | |
| Fartookzadeh et al. | Dual-band circularly-polarized monopulse antenna system with single layer patches and separated feed networks | |
| CN113224550B (en) | Broadband millimeter wave OAM antenna | |
| CN107482311B (en) | Helical antenna system | |
| Phyoe et al. | A 5.8-GHz dual-axis monopulse microstrip array antenna using dual-feed network | |
| Sahu et al. | 4× 4 rectangular patch array antenna for bore sight application of conical scan S-band tracking radar | |
| Wang et al. | A low loss frequency scanning planar array using hybrid coupling | |
| He et al. | Design of a low sidelobe monopulse array antenna with hybrid feeding structure | |
| Wincza et al. | Reduced sidelobe low-cost antenna array with corner-coupled patches for radar applications | |
| Chen et al. | A low sidelobe ultrawideband 1D monopulse antenna array for direction finding | |
| Liu et al. | A Multibeam Dual‐Band Orthogonal Linearly Polarized Antenna Array for Satellite Communication on the Move |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190823 Termination date: 20211128 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |