CN113517564B - CTS wave beam scanning antenna based on multilayer suspension strip line structure - Google Patents
CTS wave beam scanning antenna based on multilayer suspension strip line structure Download PDFInfo
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- CN113517564B CN113517564B CN202110368237.5A CN202110368237A CN113517564B CN 113517564 B CN113517564 B CN 113517564B CN 202110368237 A CN202110368237 A CN 202110368237A CN 113517564 B CN113517564 B CN 113517564B
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- 239000000725 suspension Substances 0.000 title claims abstract description 48
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- 230000005855 radiation Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims description 60
- 239000000758 substrate Substances 0.000 claims description 42
- 239000000523 sample Substances 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000007787 solid Substances 0.000 claims description 9
- 230000010363 phase shift Effects 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 5
- 230000000750 progressive effect Effects 0.000 claims description 3
- 230000005684 electric field Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 25
- 238000000034 method Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 4
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- 238000004891 communication Methods 0.000 description 2
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- 230000008569 process Effects 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
- H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
- H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
- H01Q3/34—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by electrical means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/0006—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices
- H01Q15/0086—Devices acting selectively as reflecting surface, as diffracting or as refracting device, e.g. frequency filtering or angular spatial filtering devices said selective devices having materials with a synthesized negative refractive index, e.g. metamaterials or left-handed materials
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
- H01Q21/0075—Stripline fed arrays
- H01Q21/0081—Stripline fed arrays using suspended striplines
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
- H01Q21/061—Two dimensional planar arrays
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention discloses a CTS beam scanning antenna based on a multilayer suspension strip line structure, which comprises a CTS antenna based on a multilayer suspension strip line structure and a super-surface phase shifting structure; the CTS antenna based on the multilayer suspension strip line structure comprises a line source structure, a waveguide suspension strip line discretization structure, a suspension strip line power distribution structure and a radiation structure; the super-surface phase shifting structure is positioned in the line source structure or on the surface of the radiation structure and is used for controlling the phase distribution of electromagnetic waves and realizing electronic scanning beams. The antenna structure of the invention has the advantages of low profile, wide band, high power, low side lobe and easy processing, and can realize electronic scanning beam.
Description
Technical Field
The invention relates to the technical field of antennas and antenna beam scanning, in particular to a CTS beam scanning antenna for mobile and aviation applications.
Background
As communication systems are increasingly in demand for high transmission rates and highly reliable transmissions, CTS antennas are becoming candidates for advanced antenna systems as an antenna with good performance and manufacturing stability. Therefore, a series of researches have been carried out on CTS antennas internationally for a long time, and CTS (Continuous Transverse Stub, continuous tangential section antenna) is a waveguide slot antenna, and in nineties of the twentieth century, the first proposal was made by William w.milory of the american raschel company, and as soon as the proposal causes the strong reverberation (Milroy,W.W.,"Continuous transverse stub(CTS)element devices and methods of making same,"U.S.patent 5,266,961,Aug.29,1991). of the academic world, the conventional CTS antenna is composed of a plurality of parallel plate waveguides with tangential slots open, and any longitudinal current component generated by the parallel plate waveguide excited by a plane wave is cut off by the transverse slots, so that the transmission loss becomes low and the antenna efficiency is remarkably improved due to the adoption of the parallel plate waveguide structure.
Under the practical application condition, the working bandwidth of the radiating unit is relatively wide, but the whole bandwidth of the antenna is limited by a serial feed mode and a port conversion network. In order to increase the overall bandwidth of the antenna and realize beam orientation, the feeding mode can be appropriately changed, and a CTS antenna (Ettorre,M.,F.Foglia Manzillo,M.Casaletti,R.Sauleau,L.Le Coq,and N.Capet,"Continuous transverse stub array for Ka-band applications,"IEEE Trans.Antennas Propag.,Vol.63,No.9,4798–4800,Sep.1015.).Mauro Ettorre suitable for parallel feeding operation can be designed, which is described by an all-metal 16-array-element parallel feeding CTS antenna, wherein the antenna works in the Ka band, and the radiating element is excited by a plurality of equal-power distribution waveguide T-shaped junctions to generate equal-amplitude and in-phase quasi-TEM signals. The structure adopts parallel plate waveguide feed as well, and experimental results prove that the CTS antenna array with high gain and low side lobe is provided.
Li Yue et al of Qinghua university propose a 3-unit CPW-CTS antenna (Y.Li,et al."A new low cost leaky wave coplanar waveguide continuous transverse stub antenna array using metamaterial-based phase shifters for beam steering,"IEEE Transactions on Antennas and Propagation,1013.61(7):3511-3518),CPW integrated with two 6-level metamaterial phase shifters, wherein each phase shifter can be equivalent to a series capacitor and two symmetrically distributed parallel inductors, the beam scanning function of the antenna is realized by adjusting the phase characteristics of the phase shifters, and although the CPW-CTS antenna can realize one-dimensional scanning beam of the antenna, the problems of large dielectric loss, complex bias circuit design and the like exist.
However, most of the existing CTS antenna array designs use parallel plate waveguide or substrate integrated waveguide feeding. The former feed mode has low loss, but as the caliber of the antenna increases, the processing and assembling difficulty of the feed network increases, the section of the antenna also increases, and the miniaturization of the antenna system cannot be realized; the latter feed method, although having a low profile, has a low power capacity due to a large loss of the feed network, and this method deteriorates antenna efficiency, and is not effective for use in a practical environment.
Compared with the traditional parallel plate waveguide or substrate integrated waveguide feeding mode, a novel plane transmission line alternative scheme is adopted, the plane transmission line has extremely high processing precision and small appearance, is widely applied to radar and wireless communication systems, and is commonly provided with a Microstrip line (microstripline), an air strip line (AIR STRIPLINE), a suspension strip line (Suspend Stripline) and the like; the microstrip line has larger loss in high-frequency application, the air strip line has certain difficulty in processing and assembling due to structural characteristics, and the suspension strip line is different from the air strip line and the air strip line, so that the suspension strip line not only has lower loss in high frequency, but also maintains the transmission characteristics of some microstrip lines, such as quasi-TEM mode and the like, and therefore, the suspension strip line has certain application value in low-loss and high-efficiency antenna feed.
For beam scanning, the active super-surface beam scanning design of the loaded varactors is adopted, so that direct current power consumption can be avoided. The super-surface beam scanning structure is different from a passive structure due to the fact that a varactor structure is introduced, and importantly, the capacitance values of different varactors have obvious influence on transmitted waves, control voltages are designed according to different scanning angle requirements, the beam scanning angle can be flexibly realized through simple switching, the scanning bandwidth of the transmitted waves is wide, the switching is flexible, the structure loss is low, the profile is low, the efficiency is high, and incident waves are not mixed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a CTS beam scanning antenna based on a multilayer suspension strip line structure, which is an improvement of the CTS antenna, so that the antenna structure has the advantages of low profile, broadband, high power, low side lobe and easy processing, and can realize electronic scanning beam.
The aim of the invention is realized by the following technical scheme: a CTS beam scanning antenna based on a multi-layer suspended stripline structure, comprising: a CTS antenna and a supersurface phase shifting structure based on a multilayer suspended strip line structure; the CTS antenna based on the multilayer suspension strip line structure comprises a line source structure, a waveguide suspension strip line discretization structure, a suspension strip line power distribution structure and a radiation structure; the subsurface phase shifting structure comprises a first subsurface phase shifting structure and a second subsurface phase shifting structure, and is used for controlling the phase distribution of electromagnetic waves and realizing electronic beam scanning; the first super-surface phase-shifting structure is positioned in the line source structure of the CTS antenna based on the multilayer suspension strip line structure and is used for realizing the electronic scanning beam of the H surface; the second super-surface phase-shifting structure is positioned on the surface of the radiation structure of the CTS antenna based on the multilayer suspended strip line structure and is used for realizing E-plane or/and H-plane electronic scanning beams.
Further, the line source structure of the CTS antenna based on the multilayer suspension strip line structure consists of parallel plate waveguides, and a plane wave feed source is provided for the CTS antenna; the waveguide suspension strip line discretization structure discretizes a surface wave and inputs the surface wave to the suspension strip line power distribution structure; the suspension strip line power distribution structure is used for uniformly or unevenly distributing energy; the radiation structure is used for radiating electromagnetic waves after energy distribution into free space.
Further, the super-surface phase shifting structure comprises a dielectric substrate, a metal pattern and a varactor; a layer of metal pattern is printed between two adjacent layers of dielectric substrates of the super-surface phase shifting structure, the outer surface of the outermost dielectric substrate is printed with the metal pattern, and the number of layers of the metal pattern is one more than that of the dielectric substrate; and a varactor is loaded on the metal pattern of the dielectric substrate at the outermost side of the super-surface phase-shifting structure.
Further, the surface of the dielectric substrate at the outermost side of each super surface phase shifting structure is printed with the same metal ring nested inner solid metal sheet, and a metal pad is printed between the metal ring and the inner solid metal sheet and used for symmetrically loading the varactors.
Further, the metal pad is connected between the metal ring and the inner solid metal sheet in the y direction, and two centrally symmetrical varactors are loaded in the y direction.
Further, the metal patterns between two adjacent layers of dielectric substrates of the super surface phase shifting structure are obtained by symmetrically rotating inverted T-shaped metal strips around the center of the dielectric substrates, the transverse edge of each inverted T-shaped metal strip is close to the symmetrical rotation center, the vertical edge points to the outer side of the dielectric substrate, and each metal strip after symmetrical rotation is connected.
Further, a metal pattern between two dielectric substrates is printed on the lower surface of the upper dielectric substrate or the upper surface of the lower dielectric substrate.
Further, the first super-surface phase shifting structure is arranged in the line source structure of the CTS antenna based on the multilayer suspension strip line structure, is arranged in parallel with the feed source waveguide port and is used for controlling H-plane phase distribution of transmitted electromagnetic waves.
Further, the first super-surface phase shifting structure is externally connected with a vertical bias power supply, and the capacitance of the varactor can be adjusted by changing the vertical bias voltage, so that transmission waves with different progressive phase differences are obtained, and scanning beams with different angles are formed.
Further, the second super-surface phase shifting structure is arranged on the surface of the radiation structure of the CTS antenna based on the multilayer suspension strip line structure and is used for controlling the E-plane or/and H-plane phase distribution of transmitted electromagnetic waves.
Further, the second super-surface phase shifting structure is externally connected with a horizontal bias power supply, and the capacitance of the varactor can be adjusted by changing the magnitude of the horizontal bias voltage, so that transmitted waves with different progressive phase differences are obtained, and scanning beams with different angles are formed.
Further, the first and second super-surface phase-shifting structures are placed on the super-surface phase-shifting structure at the same time, so that electron beam scanning can be realized.
Further, if two CTS beam scanning antennas based on a multi-layer suspended strip line structure are placed side by side, the sum and difference beam functions can be realized.
Compared with the prior art, the invention has the following advantages:
1. The super-surface phase-shifting structure has broadband performance.
2. The super-surface phase shift structure is simple and easy to process and realize, and direct current power consumption is not needed.
3. Due to the adoption of the super-surface phase shifting structure, the complexity of the feed structure is not increased while the electronic scanning beam is realized, so that the design is simplified, and the whole structure is easier to process.
Drawings
Fig. 1 is a schematic cross-sectional view of a CTS antenna based on a multi-layer suspended strip line structure according to an embodiment of the present invention;
Fig. 2 is a schematic diagram of a three-dimensional structure of a CTS beam scanning antenna based on a multi-layer suspended strip line structure according to an embodiment of the present invention;
FIG. 3 is a schematic front view of a waveguide suspension stripline discretization structure of an embodiment of the present invention;
FIG. 4 is a schematic side view of a waveguide suspension strip line discretization structure of an embodiment of the present invention;
FIG. 5 is a schematic front view of a radiating structure of an embodiment of the present invention;
FIG. 6 is a schematic top view of a radiating structure according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a subsurface phase shifting structural element according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of a stack of a subsurface phase shifting structural unit according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a super-surface phase-shifting structure array according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that, if directional indications (such as up, down, left, right, front, back, horizontal, vertical, etc.) are involved in the embodiments of the present invention, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.
The embodiment of the invention provides a CTS beam scanning antenna based on a multilayer suspension strip line structure, which comprises a CTS antenna based on the multilayer suspension strip line structure and a super-surface phase shifting structure.
Referring to fig. 1 and 2, a CTS antenna based on a multi-layer suspended strip line structure according to an embodiment of the present invention includes: a line source structure 1, a waveguide suspension strip line discretization structure 2, a suspension strip line power distribution structure 3 and a radiation structure 4; the line source structure 1 is a parallel plate waveguide, one end of the line source structure is connected with an external input feed source, the other end of the line source structure is connected with a waveguide suspension strip line discretization structure 2, and a plane wave feed source is provided for the CTS antenna; a waveguide suspension strip line discretization structure 2 discretizes the plane wave and inputs the plane wave to a suspension strip line power distribution structure 3; a suspended strip line power distribution structure 3 for uniformly or unevenly distributing energy and inputting the distributed energy to a radiation structure 4; and a radiation structure 4 for radiating the electromagnetic wave after the energy distribution to the free space.
The super-surface phase shifting structure provided by the embodiment of the invention comprises a first super-surface structure 15 and a second super-surface structure 16, wherein the first super-surface structure 15 is arranged in the line source structure 1 of the CTS antenna based on a multilayer suspension strip line structure, is arranged in parallel with a feed source waveguide port and is used for controlling H-plane phase distribution of transmitted electromagnetic waves; the second super surface structure 16 is placed on the surface of the radiating structure 4 of the CTS antenna based on a multilayer suspended strip line structure for controlling the E-plane or/and H-plane phase distribution of the transmitted electromagnetic wave.
As shown with reference to fig. 3 and 4, the waveguide suspension strip discretization structure 2 comprises an input waveguide structure 5, a metal bulkhead 7, a dielectric substrate 9, a suspension strip 6, and a suspension strip cavity 12. The input waveguide structure 5 is connected with the output port of the line source structure 1, the metal partition 7 is positioned at the short pavement 11 of the input waveguide, and the height of the metal partition 7 is the same as that of the input waveguide structure 5; the suspended strip line 6 is printed on one side of the dielectric substrate 9, the dielectric substrate 9 is arranged in the suspended strip line cavity 12, the suspended strip line cavity 12 is vertically arranged with the input waveguide structure 5, the bottom of the suspended strip line cavity vertically stretches into the input waveguide structure 5, the dielectric substrate 9 is parallel to the electric field direction of the input waveguide structure 5, the dielectric substrate 9 stretches into the center position of the part of the input waveguide structure 5, and the distance from the short pavement 11 of the input waveguide is about one quarter waveguide wavelength; the suspension strip line 6 stretches into the input waveguide structure 5 to form a probe structure 10, the suspension strip line can be matched with the waveguide impedance by adjusting the height of the probe from the ground of the waveguide and the thickness of the probe, and the inductive transmission line 8 is arranged at the tail end of the probe and used for compensating the capacitive impedance of the probe structure. The suspended strip line cavity 12 is composed of a section of rectangular waveguide with smaller waveguide height, the dielectric substrate 9 is arranged at the center of the cavity, and the characteristic impedance of the suspended strip line 6 can be adjusted by adjusting the cavity height.
Referring to fig. 5 and 6, the radiation structure 4 includes a suspended strip line cavity 12, a suspended strip line elbow 14, a probe structure 10, a metal partition 7, a waveguide horn 13, and a dielectric substrate 9; the metal baffle 7 is positioned at the bottom of the waveguide horn 13, and the width of the metal baffle 7 is the same as the width of the bottom of the waveguide horn 13; the top opening of the waveguide horn 13 is in a ladder shape or an asymptotic line shape; the suspension strip line is printed on a medium substrate 9, the medium substrate 9 is arranged in a suspension strip line cavity 12, and the suspension strip line is turned through a suspension strip line elbow 14 and then extends into the bottom of a waveguide horn 13 to form a probe structure 10; the probe structure 10 is positioned highly horizontally from the bottom of the waveguide horn 13 by about a quarter wavelength. Electromagnetic waves are fed from the suspended stripline cavity 12 in quasi-TEM mode and radiate from the top to free space after passing through the suspended stripline elbow 14, probe structure 10 and waveguide horn 13, respectively.
Referring to fig. 7 and 8, the embodiment of the present invention provides a super-surface phase-shifting structure, where the super-surface phase-shifting structure includes an air layer with gradually-changed thickness between each level of super-surface of a multi-layer dielectric plate, and the thickness is reduced from the outside to the center. The upper and lower surfaces of the dielectric substrate at the outermost side of the super surface are printed with metal patterns periodically, the top layer and the bottom layer of the dielectric substrate are active layers, and the layer patterns are metal ring nested inner solid metal sheets. The outer square metal ring is equivalent to an inductance structure, and the inner side of the ring and the outer side of the solid metal sheet are connected with a rectangular metal patch to serve as a bonding pad of the varactor. 2 varactors are symmetrically welded between the rectangular metal patch bonding pad and the inner square solid metal sheet by the active layer along the y direction, and the bias voltages of the 2 varactors are the same in size and opposite in direction. The bias voltage of the varactors of the x-direction unit is not communicated, and independent feed can be realized in different directions; the feed source is connected with the varactor through the external square metal ring and the rectangular metal patch, and the varactor is connected with the equivalent capacitance of the super-surface structure in parallel. A layer of metal pattern is printed between every two layers of dielectric substrates to serve as a passive layer, passive super-surface layers are printed between active layers through the dielectric substrates, the passive layer printing pattern is obtained by symmetrically rotating inverted T-shaped metal strips around the center of the dielectric substrates, the transverse edge of each inverted T-shaped metal strip is close to the symmetrical rotation center, the vertical edge points to the outer side of the dielectric substrates, and each metal strip after symmetrical rotation is connected. The bias voltage of the unit varactor along the x direction is independently adjusted to change the capacitance value, and the phase distribution of the transmitted wave is controlled, so that the phase difference of the transmitted wave and the like is realized, and the regulation and control of the wave surface phase are completed.
The phase shift gamma n produced by the subsurface unit at n cycles is calculated by:
Where λ 0 is the wavelength in free space, p is the length of the period, n is a natural number, and k 0 is the propagation constant, from which the phase shift a n＝-γn+α0+2πi,α0 required to be produced by each subsurface to produce the phase shift γ n can be calculated as the phase shift required to be produced by the first subsurface unit. In practice, when the bias voltage of the varactor of the ith cell in the x direction is Vi, the capacitance of the varactor is Ci, the phase shift generated is Φ i, the bias voltage of the varactor of the jth cell is Vj, the capacitance of the varactor is Cj, and the phase shift generated is Φ j. When phi j-Φi＝γj-i +2pi m, m is a natural number, the transmitted wave is still a plane wave, and the beam deflection angle is theta.
The super-surface unit adopts a 4-level structure, each level consists of three layers of units which are arranged periodically, the side length of the first and third layers of outer square metal rings is p, and the width is t; the length of the rectangular metal patch is L1, and the width is d; the side length of the inner square solid metal sheet is w o; the side length of the middle metal ring of the second layer is w 2, the side length of the inner hollowed square sheet is w 1, the lengths of the four metal arms are L2, and the width is uw; the inter-stage distances are g2, g1 and g2 respectively. The row direction is defined as the x-direction and the column direction is defined as the y-direction.
Referring to fig. 9, an array of subsurface phase shifting structures is shown that is made up of subsurface cells.
The foregoing is a specific embodiment of the present invention by which one skilled in the art can make a CTS beam scanning antenna based on a multi-layer suspended stripline structure by applying the methods disclosed herein and some alternatives without making any inventive effort. The invention is an improvement of CTS antenna, which makes the antenna structure have the advantages of low section, wide band, high power, low side lobe and easy processing, and can realize electronic scanning beam. However, the embodiments of the present invention are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principles of the present invention should be made and equivalents should be construed as being included in the scope of the present invention.
Claims (9)
1. A CTS beam scanning antenna based on a multilayer suspended strip line structure, which is characterized by comprising a CTS antenna based on a multilayer suspended strip line structure and a super-surface phase-shifting structure; the CTS antenna based on the multilayer suspension strip line structure comprises a line source structure, a waveguide suspension strip line discretization structure, a suspension strip line power distribution structure and a radiation structure;
the line source structure provides a plane wave feed source for the CTS antenna;
The waveguide suspension strip line discretization structure comprises an input waveguide structure, a metal partition plate, a medium substrate, a suspension strip line and a suspension strip line cavity; the input waveguide structure is connected with the output port of the line source structure, and the metal partition plate is positioned at the short pavement of the input waveguide; the suspended strip line is printed on a medium substrate, the medium substrate is arranged in a suspended strip line cavity, the suspended strip line cavity is vertically arranged with the input waveguide structure, the bottom of the suspended strip line cavity vertically extends into the input waveguide structure, and the medium substrate is parallel to the electric field direction of the input waveguide structure; the suspended strip line stretches into the input waveguide structure to form a probe structure, the impedance of the suspended strip line is matched with the impedance of the waveguide by adjusting the height of the probe from the ground of the waveguide and the thickness of the probe, and plane waves are discretized and input into the suspended strip line power distribution structure;
the suspension strip line power distribution structure is used for uniformly or unevenly distributing energy and inputting the energy to the radiation structure;
The radiation structure is used for radiating electromagnetic waves after energy distribution to free space;
The super-surface phase shifting structure is positioned in the line source structure or on the surface of the radiation structure and is used for controlling the phase distribution of electromagnetic waves and realizing electronic scanning beams.
2. The CTS beam scanning antenna based on a multi-layer suspended stripline structure of claim 1, wherein said super surface phase shifting structure comprises a dielectric substrate, a metal pattern and a varactor diode; a layer of metal pattern is printed between two adjacent layers of dielectric substrates of the super-surface phase shifting structure, the outer surface of the outermost dielectric substrate is printed with the metal pattern, and the number of layers of the metal pattern is one more than that of the dielectric substrate; and a varactor is loaded on the metal pattern of the dielectric substrate at the outermost side of the super-surface phase-shifting structure.
3. The CTS beam scanning antenna according to claim 2, wherein the surface of the dielectric substrate on the outermost side of each of the super surface phase shifting structures is printed with the same metal ring nested inner solid metal sheet, and a metal pad is printed between the metal ring and the inner solid metal sheet for symmetrically loading varactors.
4. The CTS beam scanning antenna according to claim 2, wherein the metal pattern between two adjacent dielectric substrates of the super surface phase shift structure is obtained by symmetrically rotating inverted-T metal strips about the center of the dielectric substrate, the lateral side of each inverted-T metal strip is close to the symmetrical rotation center, the vertical side is directed to the outside of the dielectric substrate, and each metal strip after symmetrical rotation is connected.
5. A CTS beam scanning antenna based on a multi-layer suspended stripline structure as claimed in claim 1, wherein said super surface phase shifting structure is disposed in parallel with the feed waveguide port for controlling the H-plane phase distribution of transmitted electromagnetic waves when disposed inside the line source structure of said CTS antenna based on a multi-layer suspended stripline structure.
6. A CTS beam scanning antenna based on a multi-layer suspended strip line structure as recited in claim 1, wherein said super surface phase shifting structure is arranged on the surface of the radiating structure of said CTS antenna based on a multi-layer suspended strip line structure for controlling E-plane or/and H-plane phase distribution of transmitted electromagnetic waves, so as to realize an electronic scanning beam.
7. The CTS beam scanning antenna according to claim 1, wherein the super surface phase shifting structure is externally connected with a bias power supply, and the capacitance value of the varactor is adjusted by changing the bias voltage, so as to obtain transmission waves with different progressive phase differences, and further form scanning beams with different angles.
8. A CTS beam scanning antenna based on a multi-layer suspended stripline structure as claimed in claim 1, wherein said super-surface phase shifting structure is capable of electronically scanning a beam when placed both inside the line source structure and on the radiating structure surface of said CTS antenna based on a multi-layer suspended stripline structure.
9. A CTS beam scanning antenna based on a multi-layer suspended strip line structure as recited in claim 1, wherein two CTS beam scanning antennas based on a multi-layer suspended strip line structure are placed side by side to achieve a sum and difference beam function.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623781A (en) * | 2012-04-18 | 2012-08-01 | 电子科技大学 | Waveguide-micro-strip integrated power distributor-synthesizer |
| WO2014123024A1 (en) * | 2013-02-07 | 2014-08-14 | 三菱電機株式会社 | Antenna device and array antenna device |
| KR101454878B1 (en) * | 2013-09-12 | 2014-11-04 | 한국과학기술원 | Subatrate Embedded Horn Antenna having Selection Capability of Vertical and Horizontal Radiation Pattern |
| CN106356599A (en) * | 2016-08-30 | 2017-01-25 | 西安空间无线电技术研究所 | Quasi-plane wave discretion or acquisition method and device |
| CN206250390U (en) * | 2016-12-05 | 2017-06-13 | 航天恒星空间技术应用有限公司 | A kind of suspended stripline fed planar array antenna |
| CN107394328A (en) * | 2017-06-20 | 2017-11-24 | 北京理工大学 | A kind of D Band Waveguide Planar Circuits transition apparatus |
| CN107706545A (en) * | 2017-08-31 | 2018-02-16 | 西安空间无线电技术研究所 | A kind of CTS array antenna systems with large-angle scanning function |
| CN108808220A (en) * | 2018-06-07 | 2018-11-13 | 南京理工大学 | A kind of wideband microstrip array antenna using waveguide feed |
| CN110233320A (en) * | 2019-05-17 | 2019-09-13 | 零八一电子集团有限公司 | Present formula suspended stripline waveguide transitions structure in side |
| CN110504515A (en) * | 2019-07-15 | 2019-11-26 | 电子科技大学 | A kind of ridge gap waveguide based on probe current coupling is to microstrip line broadband transition structure |
| CN110994165A (en) * | 2019-11-21 | 2020-04-10 | 东南大学 | High-isolation suspended microstrip line balanced feed dual-polarized broadband antenna array |
| CN112072250A (en) * | 2020-08-27 | 2020-12-11 | 中电科仪器仪表有限公司 | Terahertz waveguide-coaxial conversion structure based on waveguide narrow-wall crank arm coaxial probe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7391381B2 (en) * | 2004-01-07 | 2008-06-24 | Motia | Vehicle mounted satellite antenna system with in-motion tracking using beam forming |
| CN109921177A (en) * | 2018-12-31 | 2019-06-21 | 瑞声科技（南京）有限公司 | Filter antenna device |
-
2021
- 2021-04-06 CN CN202110368237.5A patent/CN113517564B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102623781A (en) * | 2012-04-18 | 2012-08-01 | 电子科技大学 | Waveguide-micro-strip integrated power distributor-synthesizer |
| WO2014123024A1 (en) * | 2013-02-07 | 2014-08-14 | 三菱電機株式会社 | Antenna device and array antenna device |
| KR101454878B1 (en) * | 2013-09-12 | 2014-11-04 | 한국과학기술원 | Subatrate Embedded Horn Antenna having Selection Capability of Vertical and Horizontal Radiation Pattern |
| CN106356599A (en) * | 2016-08-30 | 2017-01-25 | 西安空间无线电技术研究所 | Quasi-plane wave discretion or acquisition method and device |
| CN206250390U (en) * | 2016-12-05 | 2017-06-13 | 航天恒星空间技术应用有限公司 | A kind of suspended stripline fed planar array antenna |
| CN107394328A (en) * | 2017-06-20 | 2017-11-24 | 北京理工大学 | A kind of D Band Waveguide Planar Circuits transition apparatus |
| CN107706545A (en) * | 2017-08-31 | 2018-02-16 | 西安空间无线电技术研究所 | A kind of CTS array antenna systems with large-angle scanning function |
| CN108808220A (en) * | 2018-06-07 | 2018-11-13 | 南京理工大学 | A kind of wideband microstrip array antenna using waveguide feed |
| CN110233320A (en) * | 2019-05-17 | 2019-09-13 | 零八一电子集团有限公司 | Present formula suspended stripline waveguide transitions structure in side |
| CN110504515A (en) * | 2019-07-15 | 2019-11-26 | 电子科技大学 | A kind of ridge gap waveguide based on probe current coupling is to microstrip line broadband transition structure |
| CN110994165A (en) * | 2019-11-21 | 2020-04-10 | 东南大学 | High-isolation suspended microstrip line balanced feed dual-polarized broadband antenna array |
| CN112072250A (en) * | 2020-08-27 | 2020-12-11 | 中电科仪器仪表有限公司 | Terahertz waveguide-coaxial conversion structure based on waveguide narrow-wall crank arm coaxial probe |
Non-Patent Citations (3)
| Title |
|---|
| A Switchable Linear-to-Circular Polarizer Based on Varactor-loaded Metasurface at 30 GHz;Li Tong等;2020 IEEE Asia-Pacific Microwave Conference (APMC 2020);第652-654页 * |
| Reconfigurable Metasurface Lens Thin Antenna with 3-State Unit Cells in 28-GHz Band;Mingqi Wu等;2019 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting;第1599-1600页 * |
| 一种新型X波段频扫天线阵的设计与实现;宋小弟;汪伟;金谋平;;雷达科学与技术(第06期);全文 * |
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