3435 results about "Dielectric substrate" patented technology

The invention discloses an SSPP leaky-wave antenna and a design method thereof, and belongs to the technical field of wireless communication, and the antenna comprises a dielectric substrate, and a positive microstrip line and a negative microstrip line which are correspondingly arranged on the upper surface and the lower surface of the dielectric substrate; the positive microstrip line and the negative microstrip line are respectively symmetrical about two current transmission ends; and the SSPP structure of the middle section of the positive microstrip line and the SSPP structure of the middle section of the negative microstrip line are arranged in a way that the groove openings are opposite to each other. According to the invention, high-gain signal radiation and multi-angle beam scanning can be realized.

The invention discloses a linear polarization in-band scattering reconfigurable radiation time-sharing regulation array antenna, which belongs to the technical field of antenna engineering, and comprises an antenna unit and a one-to-sixteen power divider, the antenna unit is connected with the one-to-sixteen power divider, and the antenna unit is connected with the one-to-sixteen power divider. The antenna unit comprises a first radiation patch, a first dielectric substrate, a second radiation patch, a second dielectric substrate, a feed coupling branch knot, a feed metal column, a third dielectric substrate, a perforated metal floor and a fourth dielectric substrate, and a first PIN tube, a second PIN tube, a feed transmission line, a direct current bias device, a reflective phase shifter and a low-pass filter are arranged at the bottom of the fourth dielectric substrate; the direct-current bias device is connected with the reflection type phase shifter and the feed transmission line through the low-pass filter, and the feed metal column sequentially penetrates through the third dielectric substrate, the perforated metal floor and the fourth dielectric substrate and is connected with the feed transmission line. According to the invention, the normal radiation efficiency of the antenna can be ensured, and the reconfigurability of antenna scattering can be effectively improved.

An antenna structure includes a feeding radiation element, a first grounding radiation element, a second grounding radiation element, a connection radiation element, an extension radiation element, and a dielectric substrate. The feeding radiation element has a feeding point. The first grounding radiation element has a first grounding point. The first grounding radiation element is adjacent to the feeding radiation element. The second grounding radiation element has a second grounding point. The connection radiation element is coupled between the first grounding radiation element and the second grounding radiation element. The extension radiation element is coupled to the connection radiation element. A closed slot is surrounded by the connection radiation element and the extension radiation element. The feeding radiation element, the first grounding radiation element, the second grounding radiation element, the connection radiation element, and the extension radiation element are all disposed on the dielectric substrate.

The invention discloses a broadband high-gain microstrip antenna, which is provided with a rectangular radiation patch, a symmetrical grooving parasitic patch, a dielectric substrate, a metal bottom plate and a polytetrafluoroethylene support column, the rectangular radiation patch and the symmetrical grooving parasitic microstrip are attached to the upper layer of the dielectric substrate; a certain distance is formed between the rectangular radiation patch and the slotted parasitic patch and is used for coupling electromagnetic waves; the upper dielectric substrate is provided with two through holes for feeding; the metal bottom plate and the upper-layer substrate are fixed through four polytetrafluoroethylene supporting columns; a space is reserved in the middle to form an air substrate; and an SMA interface is arranged below the floor. According to the microstrip patch antenna, the forms of differential feeding and parasitic patch adding are adopted, the high gain and broadband characteristics of the microstrip patch antenna are achieved, the profile of the antenna is kept within 0.1 lambda, and the unipolar radiation pattern is achieved while high performance is guaranteed. In addition, the antenna is relatively simple in technical structure and convenient for later processing, can be used as an array unit for arraying, and meets the requirements of modern communication.

The present invention discloses a high polarization isolation dual-polarization tightly coupled ultra-wideband phased array antenna. It includes a dipole unit, a coaxial feed line, a metal reflective floor, a fishbone cross-shaped patch and a cross-shaped metal wall; the dipole unit includes a horizontal and two vertical dielectric substrates, and the vertical dielectric substrates are orthogonal to each other; two groups of coplanar and mutually perpendicular butterfly-shaped dipole units are printed on the lower surface of the horizontal dielectric substrate; a fishbone cross-shaped patch is embedded at the intersection of the ends of the dipole units, and there is a gap between the patch and the end of the dipole; a patch with an etched groove line is printed on one side of the vertical dielectric substrate; the patch is connected to the dipole; the microstrip line on the upper surface of the horizontal dielectric substrate is connected to the inner conductor of the coaxial feed line, and the dipole is connected to the outer conductor of the coaxial feed line; the fishbone cross-shaped patch is in contact with the cross-shaped metal wall. The present invention realizes high polarization isolation and low cross-polarization of the dual-polarization tightly coupled ultra-wideband phased array in a lower frequency band without the need for a complex feeding network.

The invention discloses a transparent antenna for microwave energy transmission and a preparation method and application thereof, and belongs to the technical field of antennas. The transparent antenna comprises a radiation patch, a radiation patch substrate, a dielectric substrate, a reflection backboard substrate and a reflection backboard which are arranged in sequence. Wherein the radiation patch and the reflection backboard are copper nets; the dielectric substrate is of a hollow frame-shaped structure. The preparation method is simple, the adopted materials and the preparation process are both existing mature technologies, large-scale industrial production is easy to achieve, metal copper is adopted to replace traditional transparent metal (ITO), the cost of raw materials is reduced, high-transparency PET and PDMS are adopted as the preparation materials, it is guaranteed that the antenna has high transmittance in the visible light wave band, and the antenna is suitable for large-scale industrial production. Through the combination of the optimized pattern design of the antenna radiation layer and the dielectric substrate with the frame-shaped structure, the energy transmission efficiency and radiation performance of the antenna are remarkably improved, and the dielectric loss of the antenna is reduced.

The invention discloses a metasurface filtering antenna with high out-of-band rejection. The metasurface filtering antenna comprises a first dielectric substrate, a bonding layer and a second dielectric substrate which are sequentially arranged from top to bottom, wherein the central position of the upper surface of the first dielectric substrate is provided with a metasurface structure, the metasurface structure comprises four same rectangular metal patches, and the four rectangular metal patches are arranged in a 2 * 2 array; the upper surface of the second dielectric substrate is of a defected ground structure, and a rectangular gap and four U-shaped grooves are etched in the center of the defected ground structure, wherein the four U-shaped grooves are symmetrically formed in the two sides of the rectangular gap at equal intervals; the lower surface of the second dielectric substrate is a feed structure, and the feed structure comprises a microstrip line and an I-shaped branch strip connected with the microstrip line; the first dielectric substrate and the second dielectric substrate are connected through a bonding layer. The metasurface filtering antenna can achieve good filtering and radiation performance in a millimeter wave frequency band, and meanwhile is simple in structure and low in machining difficulty, thereby being beneficial to achieving miniaturization design of a millimeter wave system.

The invention relates to an asymmetric transmission optical device, a test method and an electronic device, and belongs to the technical field of nano optics and photonics. Comprising a dielectric nano-particle array which comprises a plurality of dielectric nano-particles, and the dielectric nano-particles are periodically arranged according to a preset interval; wherein the height of the dielectric nano particles is 60 nm to 150 nm; and the dielectric substrate is arranged below the dielectric nanoparticle array. The test method comprises the following steps: establishing a periodic array model according to the optical device, and setting structural parameters of the model to obtain an optimal periodic array model; performing asymmetric transmission mechanism analysis and structural parameter analysis by using the optimal periodic array model; and according to an analysis result, obtaining an optimal structure parameter of asymmetric transmission. The problems of high loss, narrow bandwidth and polarization sensitivity are avoided, and the defects of high preparation difficulty, high cost and poor compatibility caused by a complex geometric structure or a specific material are overcome.

The invention relates to a reconfigurable dual-mode leaky-wave antenna with global scanning capability and a reconfiguration method, the leaky-wave antenna comprises a double-layer slow-wave waveguide structure formed by an upper metal conductor and a lower metal conductor, and the upper metal conductor and the lower metal conductor are separated by a dielectric substrate; the double-layer slow-wave waveguide structure comprises a plurality of periodic units, and a plurality of T-shaped structures with opposite directions are processed on upper and lower layers of metal conductors of each periodic unit to form a plurality of grooves; a variable capacitance diode is embedded into the tail end of a slot arm of the upper-layer metal conductor and is electrically connected with the lower-layer metal conductor through a metal via hole, and a closed loop is formed between the upper-layer metal conductor and the lower-layer metal conductor; a plurality of elliptical radiation patches are arranged at the top of a slot arm of the lower metal conductor at intervals and used for radiation leakage of the slow wave waveguide, and continuous frequency scanning covering 180 degrees is achieved; according to the invention, two modes of frequency scanning and fixed-frequency scanning are fused, 180-degree global scanning can be realized in any frequency reconfigurable interval, and beams can be flexibly reconstructed through multiple control strategies under a fixed-frequency condition.

The invention belongs to the technical field of multifunctional radomes, and particularly relates to a frequency-agile absorption and transmission integrated electromagnetic metasurface and radome, the frequency-agile absorption and transmission integrated electromagnetic metasurface comprises a plurality of basic units in periodic array distribution, and each basic unit comprises a wave transmission layer and a wave absorption layer which are oppositely arranged; the wave-transparent layer comprises a wave-transparent dielectric substrate, a wave-transparent metal foil layer I and a wave-transparent metal foil layer II, wherein the wave-transparent metal foil layer I and the wave-transparent metal foil layer II are arranged on the two sides of the wave-transparent dielectric substrate. The wave-transparent metal foil layer I comprises a plurality of metal spiral lines, the wave-transparent metal foil layer II comprises a metal foil, and the metal foil is provided with an annular gap and rectangular gaps distributed around the annular gap; the wave-absorbing layer comprises a wave-absorbing dielectric substrate, and a wave-absorbing metal foil layer I and a wave-absorbing metal foil layer II which are arranged on two sides of the wave-absorbing dielectric substrate; according to the invention, the wave-transparent communication and wave-absorbing isolation functions are realized at the same time, the wave-absorbing frequency band agility function is realized, and the wave-absorbing effect is better.

The invention specifically discloses a circular polarization selection type wavefront shaping device of a terahertz wave band and a use method, and relates to the technical field of terahertz application. The device comprises a dielectric substrate layer and a dielectric cylinder microstructure layer, wherein the dielectric cylinder microstructure layer is arranged at the top of the dielectric substrate layer; the dielectric cylinder microstructure layer is composed of supramolecular dielectric cylinders arranged in an array mode, and each supramolecular dielectric cylinder is composed of a first dielectric cylinder superatom and a second dielectric cylinder superatom which are different in size. The first dielectric cylinder superatoms and the second dielectric cylinder superatoms are of sub-wavelength structures, and the distances between the dielectric cylinder superatoms in the adjacent rows and between the dielectric cylinder superatoms in the adjacent columns are smaller than the wavelength of incident terahertz waves. The first dielectric cylinder super atoms and the second dielectric cylinder super atoms and the corresponding substrates form geometric phase units respectively, and the dielectric cylinder rotation angles of the first dielectric cylinder super atoms and the second dielectric cylinder super atoms change along with coordinates. The device realizes selection and wavefront shaping of right-handed or left-handed circularly polarized terahertz waves, and can be widely applied to the fields of terahertz polarization spectrum measurement and imaging.

This antenna assembly includes: a dielectric substrate; a first region including conductive patterns on one side of the dielectric substrate and configured to radiate a wireless signal; and a second region including a ground conductive pattern and a feed pattern. The conductive patterns may include a first conductive pattern including a first portion and a second portion, a second conductive pattern electrically connected to a first portion of the ground conductive pattern, and a third conductive pattern electrically connected to a second portion of the ground conductive pattern. The size of the second conductive pattern may be smaller than the size of the third conductive pattern. The size of the third conductive pattern may be greater than the size of the first conductive pattern.

A metasurface lens (2) for shaping a Gaussian beam into a collimated uniform beam, and a design method. The metasurface lens (2) comprises a dielectric substrate layer (203) and a metasurface microstructure. The metasurface microstructure comprises a first metasurface (201) and a second metasurface (202) which are respectively distributed on two sides of the dielectric substrate layer (203), and the first metasurface and the second metasurface each are formed by periodically arranging a plurality of columnar microstructure units. The distribution mode of the columnar microstructure units of the metasurface lens (2) is optimally designed on the basis of irradiance distribution of the Gaussian beam and a target collimated uniform beam, so that emergent beams are parallel to an optical axis and are uniformly distributed in a target range. The metasurface lens (2) implements laser shaping to obtain a target beam; and additionally, the structure is simple, the application range is wide, and the present invention is suitable for laser shaping of various lasers.

A metasurface array comprises a plurality of electronic control metasurface units, and each electronic control metasurface unit comprises a patch layer, a first dielectric substrate layer, a floor layer, a bonding layer, a second dielectric substrate layer and a bias line layer from top to bottom; the patch layer comprises four square double-ring metal patch structures and a dipole arm structure provided with a pin diode, a central metal through hole penetrating downwards to be connected with the offset line layer is formed in the crossed position, and corresponding to the diameter of the central metal through hole, only the diameter of an opening in the floor layer is large, and the other layers are the same; a peripheral metal blind hole penetrating through the first dielectric substrate layer is downwards formed in the central point of each square double-ring metal patch structure; the bias line layer is of a fan-shaped branch knot structure; under the cooperation of the feed source antenna, the electric control metasurface unit realizes the on-off of a pin diode through phase distribution coding under the control of the direct current control circuit board and the ARDUINO microprocessor, and realizes beam scanning in a specified direction. The antenna is wide in frequency band and low in cost.

The invention discloses a negative group delay system based on SSPP, and belongs to the technical field of microwave communication. A fundamental mode negative group velocity is innovatively generated based on an artificial surface plasmon SSPP, and an SSPP system with negative group delay is realized. The system comprises two parts, namely an amplifier circuit and an SSPP waveguide with a negative group delay unit. The SSPP waveguide with the negative group delay characteristic comprises two coplanar waveguide parts, two transition parts and an SSPP waveguide part, the SSPP waveguide part comprises a unit for generating negative group velocity and a plurality of basic units, and further comprises a microwave dielectric substrate. The amplifier is composed of an amplifier chip, a peripheral capacitor inductor of the amplifier chip and a direct-current power supply. An input signal passes through the system, and advanced transmission of the signal can be realized. The problems of narrow bandwidth, large loss and non-adjustable structure in the prior art are effectively solved, and the antenna has wide application prospects in the fields of 5G communication, radar signal processing, array antenna systems and the like.

The invention belongs to the technical field of communication, and particularly relates to an ultra-wideband miniaturized Vivaldi antenna. The antenna comprises a dielectric substrate, wherein the upper surface of the dielectric substrate comprises a main body Vivaldi antenna, four resistors, two rectangular metal patches and an artificial surface plasma, wherein the main body Vivaldi antenna is provided with an exponential gradually-changed slot; a feed network is arranged on the lower surface and comprises six impedance conversion microstrip transmission lines, a fan-shaped transmission line and a circular groove; the main body antenna and the dielectric substrate are placed in a centered alignment manner, the four resistors are placed at the tail end of the main body antenna, and the rear sides of the resistors are connected with the two rectangular patches; the artificial surface plasma is placed in the main body antenna gradual change gap; and the multi-section impedance transformer and the microstrip-to-slot line structure of the feed network are aligned with the circular slot of the main body antenna. According to the invention, the ultra wide band, miniaturization and high radiation gain are realized by designing the main body antenna, slotting the edge, loading the resistor, carrying out the artificial surface plasma and the like. The working frequency band of the antenna ranges from 0.2 GHz to 18 GHz, and the antenna has the characteristic of miniaturization.

The invention relates to a circularly polarized quasi-absorption filtering phased-array antenna. A unit of the antenna comprises a multi-layer dielectric substrate, a semi-cured layer, a metal floor, a stacked patch and an orthogonal H-shaped gap, the first dielectric substrate is provided with a parasitic square loop, the second dielectric substrate is provided with a cross-shaped strip, and radiation zero points are introduced to the upper and lower edges of a passband respectively; the 3dB orthogonal directional coupler and the L-shaped feeder form a feed network, circularly polarized radiation is realized through slot coupling, and an isolation port of the 3dB orthogonal directional coupler is connected with a 50-ohm resistor, so that the energy of a lower stop band is absorbed, the energy of an upper stop band is reflected, and a quasi-absorption filtering characteristic is presented; the antenna is compact in structure and easy to process, has wide axial ratio bandwidth and good filtering performance, and when array scanning is 0-45 degrees, the overlapping impedance bandwidth is 12%, the axial ratio bandwidth is 15.8%, and the maximum scanning loss is 2.3 dB; the antenna is compact in structure and easy to process, has wide axial ratio bandwidth and good quasi-absorption filtering performance, and has huge potential in millimeter wave satellite communication application.

A vehicle comprises: vehicular glass including a transparent region and an opaque region; a transparent dielectric substrate disposed in the transparent region of the vehicular glass; a first area including an antenna on one side surface of the transparent dielectric substrate; and a second area including a power supply pattern and a ground conductive pattern electrically connected to the antenna. The antenna may comprise: a first slot formed between a signal pattern and a first ground pattern and configured to radiate a first signal having a circularly polarized wave in a first frequency band; and a second slot formed between the first ground pattern and a second ground pattern and configured to radiate a second signal having a circularly polarized wave in a second frequency band lower than the first frequency band.

The invention discloses a Ka-band four-tilt-beam magnetoelectric dipole antenna, and belongs to the technical field of millimeter wave radio frequency front-end devices. Based on a magnetoelectric dipole composite radiation structure, four centrosymmetric radiation units are integrated on a low-loss substrate. The antenna comprises a probe patch of a coaxial gamma-shaped feed probe, a radiation patch, a parasitic patch, an upper dielectric substrate, a lower dielectric substrate, a middle curing layer, a shorter metal through hole of the coaxial gamma-shaped feed probe, a longer metal through hole of the coaxial gamma-shaped feed probe, a metal through hole c of the radiation patch, a metal through hole d of the parasitic patch and a metal ground backboard, a probe patch, a radiation patch and a parasitic patch of the coaxial gamma-shaped feed probe are located on the upper surface of the upper-layer dielectric substrate, and a metal ground backboard is located on the lower surface of the lower-layer dielectric substrate; the antenna has ultra-wide impedance bandwidth, has the characteristics of low cost, miniaturization, low cross polarization and back lobe suppression, and is superior to a traditional inclined beam antenna and an antenna array scheme.

The dual-polarized antenna comprises a first dielectric substrate, a second dielectric substrate, a third dielectric substrate, a fourth dielectric substrate, a fifth dielectric substrate and a double-feed probe, the first dielectric substrate, the second dielectric substrate and the fifth dielectric substrate are stacked, one surface of the first dielectric substrate is provided with four centrosymmetric patch units, and the surface, close to the first dielectric substrate, of the second dielectric substrate is provided with a radiation patch coaxial with the patch units. A first I-shaped gap and a second I-shaped gap which are crossed, vertical and centrosymmetric are formed in the third dielectric substrate close to the second substrate surface, a plurality of first metalized via holes are formed in the periphery, and the gaps are coaxial with the patch unit; the fourth dielectric substrate is provided with a first T-shaped microstrip feeder line and a second T-shaped microstrip feeder line which are not in contact with each other, the periphery of the fourth dielectric substrate is provided with second metalized via holes which are in one-to-one correspondence with the first via holes, and the feeder lines are respectively corresponding to the I-shaped gaps; and the double-feed probe is respectively connected with the feed points of the first T-shaped microstrip feeder and the second T-shaped microstrip feeder through feed holes. By adopting the dual-polarized antenna, the port isolation and the wide-angle scanning range can be improved.

The invention discloses a mirror symmetry correlation receiving radiation metasurface and a polarization and complex amplitude regulation and control method thereof. The polarization state of the receiving and radiating end of the metasurface and the complex amplitude regulation and control method from any polarized wave to any polarized wave are regulated and controlled by controlling the in-plane mirror symmetry of the receiving and radiating metasurface patch structure. The polarization and complex amplitude regulation and control method is realized by a receiving and radiating metasurface, the metasurface structure is composed of five layers of metal and four layers of dielectric substrates, and the total thickness is about 0.086 lambda. Wherein the first-layer structure and the fifth-layer structure consist of circular rings with two pairs of arc-shaped grooves etched at the edges and C-shaped grooves etched at the centers; the relative rotation angle of the C-shaped groove and the arc-shaped groove is changed to control the elliptical angle of electromagnetic waves, the overall rotation angle of the C-shaped groove and the arc-shaped groove controls the polarization angle of the electromagnetic waves, and the opening size of the C-shaped groove is used for regulating the transmission amplitude; the transmission phase is regulated by changing the length of the third-layer transmission line; meanwhile, the four layers of dielectric plates are used for isolating radiation and receiving modes. The metasurface and the method have the ultra-thin characteristic and the ultra-high pixel resolution.

The resolution-customizable micro spectrometer based on the transverse dispersion metasurface comprises a dispersion metasurface array structure and a focal plane pixel array, and the dispersion metasurface array structure comprises a plurality of dispersion metasurface sub-arrays which are distributed in an array mode and used for preliminary spectrum decoupling and directional convergence. The dispersion metasurface subarray comprises a plurality of dispersion metasurface units and all-dielectric substrates thereof, the dispersion metasurface units are nano-columns with four-fold symmetry, the nano-columns are periodically arranged, and the phase of transmission light is dynamically regulated and controlled according to the frequency omega of incident light. The focal position (x ', y') of the transmission light on the focal plane is in a linear mapping relation along with the change of the omega; the focal plane pixel array comprises a multi-element plane array composed of a plurality of pixels, and the multi-element plane array is in pixel-level registration with the dispersion metasurface sub-array. According to the invention, pixel-level precise condensation is realized, crosstalk is effectively inhibited, the detection precision is improved, and real snapshot spectral imaging is realized.

An antenna module is configured to receive a signal from a baseband circuit and to radiate a radio wave. The antenna module includes a dielectric substrate, radiating elements, and a connector. The dielectric substrate includes planar sections having different normal directions. A first radiating element is disposed in or on the planar section. A second radiating element is disposed in or on the planar section. The antenna module is configured to transfer a radio-frequency signal to a third radiating element, which is externally disposed, via the connector. The size of the second radiating element is smaller than that of the third radiating element.

The invention discloses a phased-array antenna, the phased-array antenna comprises a plurality of antenna module units, each antenna module unit comprises a PCB and an integrated radome module, and the integrated radome module is arranged on the surface of the PCB; a feed network, a dielectric substrate and an antenna radiation patch are arranged on the PCB, and the PCB is used for realizing feed and partial radiation functions; the integrated antenna housing module comprises a honeycomb support, an antenna patch, a PET film and an antenna housing, the antenna patch is etched on the PET film, the honeycomb support, the PET film and the antenna housing are mutually connected to form an integrated structure, and the integrated antenna housing module is used for realizing wave transmission, bandwidth broadening and impedance matching. According to the phased-array antenna, the use cost of PCB materials is reduced, and the problem that the electrical performance of the phased-array antenna is reduced due to dielectric loss caused by excessive use of PCB materials is solved.

The invention discloses a linear polarization scattering reconfigurable array antenna, which belongs to the technical field of antenna manufacturing and comprises an antenna unit, an extension socket, a transmission type phase shifter and an inductor. The antenna unit comprises a radiation patch, a first dielectric substrate, a metal via hole, a metal patch, a second dielectric substrate, a perforated metal floor, a third dielectric substrate, a feed metal column and a radio frequency coaxial connector, the radio frequency coaxial connector is connected with the radiation patch through the feed metal column, and a variable capacitance diode and a capacitor are arranged on the transmission type phase shifter. The transmission type phase shifter is connected with the radiation patch through the feed metal column, the variable capacitance diode is connected with the punching metal floor, the bottom of the third dielectric substrate is provided with a direct current bias line, the direct current bias line is connected with the transmission type phase shifter through the inductor, and the transmission type phase shifter is connected with the radiation patch through the feed metal column. According to the invention, flexible regulation and control of antenna scattering beams can be realized, and the antenna has the characteristics of flexible control, fast response speed and high radiation efficiency.

The invention discloses a broadband full-Stokes polarization imaging device based on non-orthogonal four-channel polarization beam splitting, which comprises a dielectric substrate, a non-orthogonal polarization beam splitting metasurface and a focal plane detection array, and is characterized in that the non-orthogonal polarization beam splitting metasurface is composed of a plurality of sub-wavelength unit structures; the sub-wavelength unit structure is a single-layer anisotropic medium nano-column array and is configured to perform intrinsic-loss-free non-orthogonal four-channel beam splitting on incident light and form four spatially separated focuses on the same focal plane, and polarization states corresponding to the four channels form a regular tetrahedron measurement base on a Poincare sphere; therefore, full Stokes parameter measurement is completed by four pixels; the sub-wavelength unit structure forms a super-pixel unit, and the super-pixel unit is aligned and integrated with a focal plane detection array in a two-dimensional array form to form a compact polarization camera facing focal plane segmentation. The device is simple in structure, easy to integrate with the CMOS front end, small in device size, low in power consumption and high in mass production feasibility.

The invention relates to the technical field of optical metasurface and light field regulation and control, in particular to a light pressure multi-dimensional regulation and control method and device based on a metasurface microstructure array. The method comprises the following steps: designing and preparing a metasurface microstructure array, wherein the microstructure array is composed of a plurality of sub-wavelength scale three-dimensional microstructure units arranged on a dielectric substrate; surface plasmon resonance is excited by adjusting structural parameters of the three-dimensional microstructure units and adjusting working parameters of a light source acting on the microstructure array, and near-field localization and enhancement are achieved. And calculating, regulating and controlling the light pressure borne by the metasurface microstructure array based on the Maxwell stress tensor. The method can keep a remarkable light pressure enhancing effect in a wide spectrum range of 380-1300 nm, and is suitable for various material systems such as silver, gold and the like. The method can be applied to the fields of optical tweezers systems, optical control devices, precision measurement and the like, and has the advantages of flexible design, simplicity and convenience in preparation, high regulation and control precision and the like.

The CSRR-based quarter substrate integrated waveguide sensor comprises a dielectric substrate, a square ring metal layer is arranged on the upper surface of the dielectric substrate, a lower metal layer is arranged on the lower surface of the dielectric substrate, and a row of metal holes are uniformly distributed in the circumferential direction of the square ring metal layer; the upper surface of the dielectric substrate is also provided with four triangular metal patches with different sizes, and each edge of the square ring metal layer is connected with one triangular metal patch; two concentric annular CSRRs are etched on the vertex angle, far away from the square ring metal layer, of the triangular metal patch. The sensor is novel in design, four mutually independent poles are generated, simultaneous multiband operation is realized, efficiency is improved, errors and loss are reduced, the size of the sensor is reduced by about 75% by adopting the QMSIW, and the sensor has the advantages of being small in size, easy to integrate, high in flexibility, low in loss and high in sensitivity.

An antenna module includes a dielectric substrate, a ground electrode disposed in the dielectric substrate, flat-plate-shaped radiating elements, feed lines, and a via electrode connected to the ground electrode. The radiating element is disposed opposite the ground electrode in the dielectric substrate. The radiating element is disposed between the radiating element and the ground electrode. The feed line extends through the radiating element and transmits a radio-frequency signal to the radiating element. The feed line transmits a radio-frequency signal to the radiating element. The feed line is electrically coupled to the radiating element at a position offset from a center of the radiating element in a first direction. The feed line is electrically coupled to the radiating element at a position offset from a center of the radiating element in a second direction different from the first direction.

The invention discloses a multi-mode circularly polarized OAM (orbital angular momentum) filtering antenna based on an artificial surface plasmon. According to the antenna, the SSPP leaky-wave antenna and the HMSIPW filter are integrated, so that efficient emission of multi-mode OAM beams is realized, and the antenna has low axial ratio, high gain and good directional diagram matching performance; the SSPP leaky-wave antenna is composed of an Archimedes spiral line type SSPP waveguide and annularly distributed patches, wherein the SSPP waveguide realizes accurate regulation and control of dispersion characteristics through the combination of periodic sawtooth comb lines and uniform spiral lines; the HMSIPW filter is composed of a dielectric substrate layer, a metalized through hole and a gradient rectangular structure, impedance matching of a micro-strip and double lines is achieved, insertion loss is reduced, and radiation performance is improved. Compared with a traditional design, a filtering function is integrated, higher harmonic radiation and low-purity high-mode OAM are inhibited through the overall design, and selectivity and radiation energy uniformity are improved.