38 results about "Transmission amplitude" patented technology

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 invention discloses a terahertz metasurface capable of realizing independent control of amplitude and phase. The terahertz metasurface comprises a terahertz transparent substrate; the metasurface unit array is periodically arranged in a first direction, and each metasurface unit comprises a first structural layer which is of a dielectric resonance structure and is used for providing a phase regulation and control function; the second structural layer is a thin film formed by an adjustable absorption material and is used for providing an amplitude regulation and control function; the second structure layer is provided with an independent electrode for adjusting the transmission amplitude; a first dielectric isolation layer is arranged between the terahertz transparent substrate and the first structure layer and is used for reducing an electromagnetic coupling effect; the first structural layer and the second structural layer are stacked in the vertical direction through a three-dimensional processing technology, a second dielectric isolation layer is arranged between the first structural layer and the second structural layer, and the second dielectric isolation layer is a silicon dioxide SiO2 or silicon nitride Si3N4 film with the thickness D ranging from 100nm to 1000nm.

The invention provides a terahertz echo wall mode waveguide on a light control chip, which comprises an echo wall mode micro-ring, a straight waveguide and a conical coupling waveguide which are integrated on the same substrate, and a solid-state laser source positioned above the micro-ring. And the conductivity and the inherent loss of the high-resistance silicon micro-ring are dynamically changed through the photon-generated carrier effect, so that switching of an echo wall mode among an over-coupling state, a critical coupling state and an under-coupling state is accurately and continuously regulated and controlled. According to the invention, based on an active regulation and control mechanism of a photoconductive effect, large-depth and high-speed dynamic control of terahertz signal transmission amplitude and phase can be realized, the bottleneck of low integration level and limited modulation performance of an existing terahertz regulation and control device is solved, and a key technical scheme is provided for realizing a high-performance on-chip terahertz switch, an attenuator and a modulator.

This invention provides a heterojunction terahertz metamaterial sensor and its fabrication method. The sensor comprises: a silicon dioxide substrate, and a polyimide flexible dielectric layer, a metal array layer, a graphene layer, and a carbon nitride layer sequentially located on the silicon dioxide substrate; wherein the metal array layer has multiple metal periodic structural units; the metal periodic structural units are used to resonate with terahertz waves. By setting metal periodic structural units that resonate with terahertz waves in the metal array layer, this invention can change the surface dielectric environment of the metal array layer, thereby altering the resonant frequency and transmission amplitude involved in the terahertz band, and thus achieving ultrasensitive, multi-dimensional detection of proteins.

This application discloses a multimodal microwave sensor and a multi-parameter decoupling measurement method. The sensor includes a first metal layer, a dielectric layer, a second metal layer, and a transmission unit. The first metal layer is provided with a first microstrip line feed line, a second microstrip line feed line, and a three-mode resonant coupling structure. By setting the transmission unit to connect with a single-end fixed beam, the non-uniform elastic deformation of the single-end fixed beam under pressure causes synchronous asymmetric coupling changes in the three-mode resonant coupling structure. This simultaneously excites two sensing parameters, namely the change in resonant frequency difference and the change in transmission amplitude, to respond independently. Dual-parameter fusion sensing can be achieved without additional circuitry, effectively suppressing temperature drift and environmental electromagnetic interference, improving the anti-interference capability and measurement reliability of the entire microwave pressure sensor, and enhancing the pressure measurement accuracy and the stability of the device.

The present application belongs to the technical field of flow metering equipment, and particularly relates to a large-diameter multi-channel horizontal partitioned reflection type ultrasonic flow meter, aiming at solving the problems of low metering range ratio, low metering accuracy and the gap between the optimal solution of the development of large-diameter ultrasonic water meter technology. The present application adopts the following measures: transducer sound path maximization layout, partitioned flow channel resistant to turbulent flow interference, low pressure loss consistency flow channel, multi-channel transducer mode, partitioned metering, pipe body mode processed by pipe segments, local sealing mode, layout considering easy installation of temperature and pressure sensors, flow meter processing and installation consistency mode, so that the present application realizes maximization of metering range ratio, minimization of starting flow value, maximization of sound wave energy transmission amplitude between ultrasonic transducers, has the characteristics of resistance to fluid turbulent flow interference, and meets the requirement of high metering accuracy within the range in various actual application occasions.

The invention belongs to the field of acoustic devices, and particularly relates to a cross-medium sound transmission enhancement acoustic lens. Comprising a circular cover plate, a cylindrical supporting frame and a positioning ring, a plurality of unit holes are formed in the circular cover plate, and the circular cover plate is fixedly arranged at the end of the supporting frame; and the positioning ring is fixed on the inner wall of the supporting frame. According to the invention, through the parallel arrangement of the plurality of unit holes, the sound lens realizes the cross-medium sound penetration enhancement design; the transmission amplitude of the underwater acoustic lens at multiple frequencies is increased by more than two times, and the transmission gain exceeds 6dB; the working stability of the acoustic lens is further improved; the acoustic lens designed by the invention is simple in structure, a complicated design method is not needed, large-scale manufacturing and application are facilitated, and the cover plate is of an ultrathin structure, so that the requirements of compact structure and light weight can be met; according to the invention, the simple structure can realize cross-medium sound penetration enhancement, can realize cross-medium transmission of sound waves, and has wide application prospects in the fields of underwater detection, cross-medium communication and the like.

A piezoelectric superstructure capable of controlling axial flexural wave transmission within a shell structure comprises a cylindrical thin-walled shell substrate, piezoelectric fiber composite patches acting as piezoelectric transducers disposed on the inner and outer sides of the substrate, and a shunt circuit and unidirectional coupling element connected to the two piezoelectric fiber composite patches. By modifying the parameters of the external circuit network, the present invention opens a flexural wave passband, allowing flexural wave transmission along the axial direction of the shell structure below the ring frequency, while also achieving controllable transmission amplitude. While opening a local resonant passband below the ring frequency, the transmission amplitude can be flexibly controlled, providing a new approach for structural health monitoring within shell structures.

The utility model discloses a structure for improving the wave transmission performance of electromagnetic waves, which comprises a dielectric substrate layer, and the dielectric substrate layer comprises two basic dielectric layers and an air dielectric layer located between the two basic dielectric layers. The electromagnetic wave-transparent functional layer comprises a transparent flexible material layer, a metal pattern layer and an OCA adhesive layer, the metal pattern layer is printed on the surface of one side of the transparent flexible material layer, and the transparent flexible material layer is bonded to the surface of the outer side of the dielectric substrate layer through the OCA adhesive layer; the electromagnetic wave-transparent functional layer is printed on the side surface of the dielectric substrate layer, and the electromagnetic wave-transparent functional layer is adhered to the surface of the structure, so that the transmission amplitude of electromagnetic waves in the dielectric substrate is greatly increased in the specific electromagnetic wave incoming direction of a specific frequency band, and the dielectric substrate can be used for solving the problem of signal attenuation of a building adopting the dielectric substrate.

The invention discloses a metasurface-assisted multi-channel super-resolution DOA (direction of arrival) estimation method based on off-grid sparse Bayesian learning. The implementation mode of the method is as follows: giving an incoming wave signal, and establishing a signal model for the incoming wave signal to reach a metasurface array element; according to the transmission amplitude and the transmission phase of the transmission type metasurface, establishing a signal model of an incoming wave signal transmitting out of the metasurface; establishing a signal model of a receiving end of the receiving antenna according to the position relationship between the receiving antenna and the metasurface; grid division is carried out on the airspace, and a sparse flow pattern array is constructed; according to a Bayesian learning algorithm, carrying out hyper-parameter initialization by utilizing the collected signal sample value, and carrying out iteration on hyper-parameters according to the idea of an expectation maximization algorithm; and finally, constructing a power spectrum function, and visualizing a calculation result to obtain a direction of arrival estimation result. Compared with an existing DOA estimation method, the method has better estimation performance and higher resolution under the condition that the number of receiving channels is the same. According to the invention, high-precision target estimation and super-resolution capability are guaranteed, the number of receiving channels is reduced, the complexity of a receiving system is reduced, and the system cost is saved.

The invention belongs to a signal direction finding method, and provides a signal direction finding method based on a space-time modulation metasurface and a related device in order to solve the technical problems that in the prior art, a traditional direction finding system has frequency spectrum leakage and poor direction finding precision, and related research for achieving direction-of-arrival estimation by modulating transmission amplitude lacks. When the space-time modulation metasurface receives a signal transmitted by a signal source, square waves of modulation array elements in the sub-arrays are estimated through a space-time modulation model, the space-time modulation model represents each sub-array signal in combination with a modulation frequency and a channel amplitude phase of each sub-array, and each sub-array signal is obtained; and estimating the square wave of the modulation array element in the sub-array through the relative phase difference of the + 1 harmonic and the + 2 harmonic of the represented sub-array signal. Then, according to square waves of modulation array elements in the sub-arrays, sub-array signals are recovered, and spatial frequency spectrum estimation is carried out on the sub-array signals to obtain the direction of arrival. And a non-uniform period modulation scheme is adopted to improve the estimation precision of the direction of arrival.

The application discloses a kind of diffractive microstructure library management system, method, storage medium and optical element applied to the field of diffractive optical element design, the transmission amplitude and phase of unit structure under different polarization states are simulated / measured, and polarization sensitivity index is calculated, the structure library index with "exclusive area / turning rule" is established, so that the unit structure that meets can be preferentially selected when generating prescription phase height field, to reduce the phase error and ghost risk caused by polarization, and output the data packet with version number, hash signature and audit field for cross-site replication, by introducing quantitative polarization sensitivity index, and actively screening unit structure that meets polarization sensitivity index meets set threshold in design stage, fundamentally reduce the dependence of diffractive optical element on incident light polarization state, so as to effectively reduce phase error, ghost and image quality degradation.

The invention relates to the technical field of metasurfaces, and discloses a double-layer all-metal Huygens metasurface unit with independently regulated amplitude and phase and an antenna. The double-layer all-metal Huygens metasurface unit with independently regulated amplitude and phase does not need a dielectric substrate; the problem of antenna performance reduction caused by dielectric constant change of the dielectric substrate in extreme environments of high temperature, high power radiation and the like can be avoided, the cost is reduced, the double-layer structure can effectively reduce the profile height, and the transmission loss is reduced. The metal plate is provided with the inner concentric folding sub-ring groove and the outer concentric sub-ring groove which are of a specific structure, on the basis that 360-degree transmission phase regulation and control are achieved and the transmission amplitude is kept higher than-2 dB, independent regulation and control of the phase and the amplitude can be achieved, the defect that an existing double-layer all-metal transmission-type metasurface can only control the phase is overcome, and the performance of the metasurface is improved. And complex wavefront control requirements of sidelobe suppression, high-precision beam forming, complex amplitude vector holography and the like can be met.

The present disclosure relates to the field of signal processing, and in particular to an audio signal processing method, apparatus, device and storage medium. The method includes: obtaining an audio signal to be processed; segmenting the audio signal to obtain at least two stage audio signals; and processing each stage audio signal as follows: when the maximum amplitude value of the stage audio signal is less than a first preset amplitude threshold, amplifying the amplitude of the stage audio signal so that the amplified maximum amplitude value is greater than or equal to the first preset amplitude threshold, and less than or equal to the transmission amplitude upper limit value of the transmission channel of the audio signal; when the maximum amplitude value of the stage audio signal is greater than a second preset amplitude threshold, adjusting the amplitude of the stage audio signal so that the adjusted maximum amplitude value is less than or equal to the transmission amplitude upper limit value of the transmission channel of the audio signal. The present disclosure is used to solve the problem that the existing technology for adjusting the amplitude of the audio signal cannot avoid audio signal distortion while ensuring timeliness.

A frequency and amplitude independently adjustable SIW filter based on CT topology, comprising a top metal layer, a dielectric substrate and a bottom metal layer arranged in sequence from top to bottom; a metallized through hole array is vertically penetrated through the dielectric substrate, the metallized through hole is connected with the top metal layer and the bottom metal layer, and three resonant cavities distributed in the form of CT topology are formed through the metallized through hole array, and a perturbation metallized through hole is respectively arranged at the center of the three resonant cavities, and the three resonant cavities are coupled to each other through an inductive coupling window composed of the metallized through hole; three annular grooves are arranged at the top metal layer corresponding to the center of the three resonant cavities, and an adjustable varactor group is arranged on the top metal layer; an input and output feeding port is arranged on the bottom metal layer, and three annular graphene layers are arranged at the bottom metal layer corresponding to the three annular grooves. The present invention simultaneously realizes that the frequency and transmission amplitude of the SIW filter are independently adjustable.

This invention discloses a terahertz biosensing metasurface based on the Jones singularity, belonging to the field of terahertz metasurface technology. The metasurface comprises two orthogonally oriented metal open-loop resonator arrays and a dielectric spacer layer between the two layers. By making the upper layer's opening width L1 different from the lower layer's characteristic dimension L3, the two orthogonal polarization modes have different ohmic loss rates. Simultaneously, the interlayer near-field coupling strength is controlled by an in-plane displacement L2. When the combination of these two factors causes a cross-polarized transmission component of the Jones transmission matrix under circularly polarized basis vectors to drop to zero at the target frequency, the system is locked at the Jones singularity. This invention utilizes the square root topological enhancement of the second-order branch point, and the device exhibits highly sensitive intrinsic transmission amplitude splitting at the singularity to weak dielectric perturbations, making it suitable for label-free, ultrasensitive biosensing.

The invention relates to the field of automatic detection of tea processing, and provides a tea withering detection method and system based on ultrasonic attenuation, and the method comprises the steps: synchronously collecting echo signals, position parameters and environment temperature, generating a stacking thickness field matrix through thermodynamic sound velocity compensation and cubic spline interpolation, and outputting porosity correction according to a rheological power law function; a transmission acoustic signal is collected by a time division multiplexing mechanism, a transmission amplitude field and a propagation time field are constructed through Hilbert transform and cross-correlation time delay estimation, average sound velocity distribution is constructed, and a physiological attenuation coefficient and a damage index are generated in combination with porosity correction; a composite feature vector is constructed, and the local water content and the cell wall breakage rate are solved through a space-time gradient coupling network; and generating a global regulation and control instruction in combination with the spatial weighted average moisture content and the accumulation thickness field matrix, and generating a fixed-point targeted raking instruction in combination with the abnormal displacement coordinates. According to the method, acoustic inversion and multi-dimensional closed-loop correction are fused, and digital perception and intelligent targeted regulation and control of the tea leaf withering process are constructed.

The invention discloses a multiband tunable electromagnetic induction-like transparent metamaterial and application, and belongs to the technical field of electromagnetic induction transparent metamaterials. The multiband tunable electromagnetic induction-like transparent metamaterial comprises a plurality of periodically arranged structural units, each structural unit comprises a substrate, a graphene metasurface is arranged on the upper surface of each substrate, and each graphene metasurface comprises a rectangular resonator, a first split-ring resonator and a second split-ring resonator. The second split-ring resonator is located between the first split-ring resonator and the rectangular resonator, and the bottom of the second split-ring resonator is nested in the first split-ring resonator; the rectangular resonator, the first opening resonance ring and the second opening resonance ring generate three similar electromagnetic induction transparent windows in the terahertz wave band through the near-field coupling effect. According to the multiband tunable electromagnetic induction-like transparent metamaterial and the application, three high-transmittance transparent windows are generated in a terahertz wave band, a remarkable slow light effect is achieved, and the transmission amplitude, the center frequency and the slow light effect of the transparent windows are adjusted by adjusting the Fermi level of graphene.

The application discloses an antenna and a wireless communication device. The antenna comprises a first metal body, the first metal body comprises N slots, and the N slots are determined according to a first parameter set. The first parameter set comprises at least one of the following parameters: a working frequency band of the antenna, a lowest-order waveguide mode corresponding to the N slots, a height H of the N slots, a side length P of the N slots, a filling medium, a desired transmission amplitude and a phase. The N slots correspond to N antenna units. According to the scheme, the antenna has a simple structure, is easy to process and install, and has good transmission performance.

The invention discloses a frequency-angular momentum multiplexing acoustical holography method based on an acoustic metasurface, and the method comprises the steps: determining the transmission amplitude phase distribution of the acoustic metasurface at each working frequency according to the frequency and orbital angular momentum order of each vortex acoustic beam and the projection position corresponding to each acoustic beam at a receiving end, and carrying out the spatial discretization and numerical discretization, according to the method, parameters of each metamaterial unit of the acoustic metasurface are determined, the acoustic metasurface with frequency selectivity and angular momentum selectivity is obtained, the acoustic metasurface achieves accurate decoupling regulation and control on amplitudes and phases of sound fields with different frequencies, and acoustic holographic projection with the frequency selectivity and the angular momentum selectivity at the same time is achieved. According to the method, the frequency multiplexing technology and the angular momentum multiplexing technology are combined, the information containing capacity of the acoustic holographic technology is greatly expanded, the flexibility of the acoustic holographic technology is enhanced, and the blank of related fields is filled.

The invention relates to the field of microwave testing, in particular to a method for measuring the reflection coefficient of an antenna housing through a transmission testing system. Comprising the following steps: setting a test polarization mode; adjusting the antenna housing mounting rack according to the test part and the incident angle of the to-be-tested antenna housing; before the to-be-tested radome is installed, recording the transmission amplitude and phase of the free space when the radome does not exist, and taking the transmission amplitude and phase as test reference values; and the transmission amplitude and the phase under the condition that the antenna housing exists are tested and are compared with the tested reference value to obtain the power transmission coefficient test amplitude and the phase delay of the antenna housing to the electric field, and then the reflection coefficient of the electric field of the antenna housing is obtained through formula calculation. The method is suitable for process detection quality control of manufacturers, the test principle is easy to understand, the test method is visual, and the method is more suitable for exploration and improvement of the performance of a prototype radome with high performance requirements and short development and production time.

The present invention discloses a bone conduction sound-generating device and a wearable device, wherein the bone conduction sound-generating device includes an external packaging structure, a hollow cavity disposed within the external packaging structure, and a hollow spring; an exciter, the exciter including an upper magnetic member and a lower magnetic member, the upper and lower magnetic members being arranged parallel to each other in the Z-axis direction with a gap therebetween to form an isolation zone; and a spatial low-frequency adjustment plate disposed between the hollow spring and the exciter. The spatial low-frequency adjustment plate adjusts the structural stacking of the hollow spring and the exciter in the Z-axis direction and adjusts the gap in the isolation zone. The hollow spring and the spatial low-frequency adjustment plate cooperate to adjust the effective vibration area of ​​the hollow spring to adjust the resonant frequency of the device. A wearable device equipped with the bone conduction sound-generating device can transmit low-frequency signals with moderate transmission amplitude, balance the entire sound frequency band, achieve good acoustic effects, and significantly improve user experience and product sound quality.

This invention discloses a modular all-metal superlens design method, relating to the field of metamaterial lens design. The method includes: first, determining the operating frequency and desired focal position of the modular all-metal superlens; designing all-metal superlens units based on the operating frequency to achieve a phase control range exceeding 360° for the incident wave and a transmission amplitude exceeding -3dB; then, designing the phase arrangement of the superlens based on the desired focal position and operating frequency; quantizing the phase of the all-metal superlens with a 10° phase step based on the energy error, and modularizing each superlens unit; and reassembling the modularized superlens units into superlenses with different phase arrangements to form a modular all-metal superlens with adjustable energy and focal point. This invention enables modular all-metal superlenses, achieving adjustable energy and focal point without increasing cost, thus improving the freedom of superlens design.

The embodiment of the invention relates to the technical field of signal processing, and discloses a real vehicle fault diagnosis method, device and equipment, and the real vehicle fault diagnosis method comprises the steps: a vehicle-mounted domain controller receives a test instruction sent by external equipment; amplitude signals are periodically transmitted between a deserializer module of the control domain controller and a serializer module of the camera module in a manner of gradually reducing the emission amplitude; obtaining an amplitude signal, and obtaining a link margin and an electronic eye pattern of a transmission link between the deserializer module and the serializer module according to the amplitude signal; and judging whether a transmission link between the deserializer module and the serializer module has a fault or not according to the link margin and the electronic eye diagram. According to the real vehicle fault diagnosis method provided by the invention, the fault diagnosis process is started through the test instruction sent by the external equipment, and the transmission quality of the amplitude signal between the deserializer module and the serializer module is monitored in real time, so that whether the transmission link between the deserializer module and the serializer module has a fault or not is quickly judged.

A method of adapting charging of an accessory device, comprising: transmitting a first transmission signal at a first transmission amplitude; measuring a received load of the first transmission signal; and if the charging device does not receive a response signal to the first transmission signal, transmitting a second transmission signal at a second transmission amplitude different from the first transmission amplitude.

The invention relates to the field of integrated circuits, and discloses a millimeter wave CMOS power amplifier with a bendable layout, which comprises a CMOS power amplifier body, and the CMOS power amplifier body comprises an input matching network, a driving amplification stage, an inter-stage matching network, a power output stage and an output matching network which are connected in sequence, each of the input matching network, the inter-stage matching network and the output matching network comprises primary-secondary coupling coils which are arranged along the same horizontal direction and are partially overlapped; any one of the primary and secondary coupling coils of the input matching network or the inter-stage matching network of the CMOS power amplifier body arranged in the outer channel can rotate to adjust the output direction of the input matching network or the inter-stage matching network. The method has the advantages that extra link loss cannot be generated, extra chip area is not occupied, transmission amplitude / phase consistency before and after layout bending is good, secondary redesign of the circuit is avoided, and the method is efficient and convenient and has high engineering practical value.

This solution discloses a terahertz-band waveguide S-parameter transmission amplitude standard, characterized in that it includes a waveguide plate provided with a waveguide opening, and the waveguide opening on the waveguide plate is orthogonal to the waveguide opening of the transmission system. The standard uses an attenuator that can be traced in the terahertz band as a waveguide transmission amplitude standard, and accurately calibrates the attenuation parameters of a terahertz vector network analyzer through the new attenuator. The attenuator has a simple structure, and the theoretical value of the attenuation of the attenuator in the terahertz band can be calculated using the calibration value of the physical length traceability. It can thus be used as a standard attenuator to verify the measurement capability of the transmission amplitude of the vector network analyzer, that is, it can be used as a transmission amplitude standard for the waveguide S parameters. This solution solves the problem that the coupling hole diameter of the traditional multi-hole coupling-based attenuator in the terahertz band is too small, making it difficult to process and implement.

This invention discloses a circularly polarized decoupled metasurface based on a two-layer C4 structure and its design method. The metasurface consists of a substrate, a bottom subwavelength structural unit, an intermediate dielectric layer, and a top structural unit, with both the top and bottom layers using high-refractive-index materials. Based on the principle of symmetry breaking, this invention constructs a two-layer physical system with rotational symmetry while simultaneously breaking mirror symmetry, inducing the system's circularly polarized eigenresponse, thus overcoming the physical limitations of traditional single-layer structures on spin-state manipulation. During the design process, this invention combines optical simulation tools and multi-objective optimization algorithms to collaboratively optimize the spatial distribution and geometric parameters of the two-layer structure, achieving precise control over the transmission amplitude and phase of the circularly polarized component. This metasurface can achieve continuous linear polarization angle rotation of incident linearly polarized light over a wide angle range, while maintaining efficient transmission and extremely low exit ellipticity within the target wavelength band.

The invention relates to a multilayer folding transmission unit and an array system, and belongs to the technical field of antennas. Comprising a folding dielectric plate and metal patches, a polyimide film printed with the metal patches is sequentially folded in a Z shape in the vertical direction to form an integrated structure composed of four planes and three connecting slopes, the height between every two adjacent planes is h, and the metal patches are located on the upper surfaces of the four planes respectively. Each group of metal patches consists of two concentric square rings; the side length of each outer-circle square ring is L1, the side length of each inner-circle square ring is 0.6 times of L1, the widths W of the two square rings are equal, the movement range of the multi-layer folding transmission unit is larger than 360 degrees by adjusting L1, and the transmission amplitude loss is smaller than 2dB. Therefore, the multi-layer folding transmission array achieves a good broadband effect on the premise of low profile and low cost.

The invention discloses a phase dynamic reconfigurable total space energy amplification metasurface which is composed of a plurality of metasurface units arranged in an array mode, and each unit comprises two layers of dielectric plates and four layers of metal. A first slot metal patch and a second slot metal patch which are orthogonally arranged, a PIN diode and a metal microstrip line are loaded on a metal layer on the upper surface of the first dielectric plate, and a metal floor is arranged on the lower surface of the first dielectric plate. The metal layer on the upper surface of the second dielectric plate is used for feeding, and the metal layer on the lower surface of the second dielectric plate is integrated with an amplifying circuit, a power divider circuit, a microstrip line network, a PIN diode and a third slot metal patch which is the same as the second slot metal patch in shape and size. According to the invention, enhancement and adjustment of polarization conversion reflection and transmission amplitude and independent regulation and control of electromagnetic wave phases in reflection and transmission areas can be realized. According to the invention, the amplitude amplification function of electromagnetic energy and the phase regulation function of electromagnetic waves are combined, so that full-space electromagnetic wave energy enhancement and electromagnetic wave 1-bit phase independent regulation can be realized at the same time.