111 results about "Radiation zone" patented technology

The invention belongs to the technical field of antennas, and relates to a circularly polarized antenna array, which comprises four antennas distributed in an array, the antenna comprises a first radiation layer, a first dielectric layer, a second radiation layer, a second dielectric layer and a floor layer which are sequentially stacked from top to bottom, the first radiation layer comprises two spiral radiation arms which are arranged at an interval and are distributed in a central symmetry manner so as to form a circularly polarized spiral antenna; the second radiation layer and the first radiation layer are connected and have the same structure; the first radiation layer and the second radiation layer are connected with the feed structure; the radiation arms comprise a first radiation arm and a second radiation arm; the initial ends of the first radiation arm and the second radiation arm are arranged in the middle of the first dielectric layer, the terminal of the first radiation arm is arranged in the middle of the antenna array, and the terminal of the second radiation arm is arranged at the corner of the antenna array. According to the invention, ultra wide band, high gain, circular polarization and interference resistance can be realized at the same time, the axial ratio performance is good, and miniaturization is facilitated.

The invention provides a millimeter wave antenna, a millimeter wave base station antenna and a millimeter wave isolation structure. The antenna comprises a parasitic radiation layer, a main radiation layer and a grounding layer which are sequentially stacked from top to bottom, the parasitic patch on the parasitic radiation layer and the main radiation patch on the main radiation layer can respectively form resonance points and are coupled, so that the bandwidth expansion of the antenna is realized; the upper surface of the grounding layer is provided with a coupling structure, and the lower surface is provided with a feed structure. The feed structure and the coupling structure achieve a dual-polarization mode through two vertically-arranged microstrip gaps, feed signals can be transmitted and coupled to the main radiation layer more effectively, and the wide-beam antenna performance is achieved. Therefore, the antenna has good radiation efficiency in the frequency bands of N257, N258 and N261, and better meets the application requirements of 5G millimeter wave base station antennas. Meanwhile, excellent isolation performance is also realized; in addition, the base station antenna has the advantages of being simple in design and process.

The invention provides a cloud atmosphere high-fidelity vector radiation simulation method based on physical constraints. The method comprises the following steps: A1, generating cloud layer micro-physical parameters by a WRF model; a2, integrating simulation parameters generated in the step A1, and inputting the simulation parameters into an MYSTIC model for three-dimensional radiation transfer simulation; a3, constructing a PC-GAN (U-Net + + + differentiable radiation layer + double-branch discriminator) physical constraint generative adversarial correction network, and defining adversarial loss, physical loss and KL divergence loss; a4, simulation data are input into PC-GAN, CALIPSO, PLODER3 and other actual measurement data are compared with the simulation data to calculate loss, physical loss is fed back, and cloud micro physical parameters are iteratively optimized until RMSElt is radiated; 5%; a5, backfilling the cloud layer micro-physical parameters corrected in the step A4, carrying out MYSTIC model radiation transfer simulation again, and carrying out satellite / foundation verification; and A6, outputting high-fidelity radiation simulation data. The method can be widely applied to meteorological satellite data verification, climate model development, cloud characteristic inversion and remote sensor design, and has the technical advantages of high precision and high efficiency.

The invention relates to the technical field of electrothermal film preparation, in particular to an electrothermal film energy-saving heating method and system based on far infrared radiation, and the method comprises the steps: obtaining a plurality of historical electrothermal films and a current slurry feature group according to a current slurry component set and a storage electrothermal film set, and obtaining an original solid content data set of the historical electrothermal film set, obtaining a training feature data set based on the current feature parameter set and the original solid content data set, training a neural network by using the training feature data set to obtain a solid content selection model, and inputting the current feature parameter set into the solid content selection model to obtain an optimal solid content. And preparing current coating slurry based on the optimal solid content and the current slurry component set, preparing a coating base material according to the current coating slurry, and heating and drying the coating base material by using a multi-section temperature zone drying furnace to obtain the radiation layer film material. The coating efficiency in the electrothermal film preparation process can be improved, and the energy consumption in the drying process can be reduced.

The present disclosure provides a holographic antenna, a beam control method thereof, a storage medium and an electronic device, and belongs to the technical field of antennas. The present disclosure can solve the problem that the existing antenna structure is complex and the polarization direction is not variable. The holographic antenna comprises a dielectric substrate, a radiation layer and a plurality of switch units. The radiation layer is provided with a plurality of slit openings. The switch units are arranged correspondingly to the slit openings. The holographic antenna further comprises an acquisition unit configured to acquire a target wave and a polarity of the target wave; a construction unit configured to construct a reference wave based on the polarity of the target wave; a calculation unit configured to calculate an interference wave based on the reference wave and the target wave; a sampling unit configured to obtain an excitation sampling value of each slit opening; and a control unit configured to control the switch units to control the switching state of the slit openings. The present disclosure can realize dynamic reconfiguration of different polarizations by using the holographic principle combined with a slot antenna.

The utility model discloses a waveguide antenna and a radar, and the waveguide antenna comprises a radiation layer which is provided with a first surface, a solder resist part is formed at a preset position of the first surface, and a welding area is formed in the solder resist part; the signal transmission layer and the radiation layer are arranged in a stacked mode in the first direction, the signal transmission layer is provided with a second surface, and a gap space is formed between the second surface and the first surface; the soldering tin layer is arranged in the gap space and provided with a first end and a second end in the first direction, the first end of the soldering tin layer is connected to the welding area, and the second end of the soldering tin layer is connected to the second surface. According to the utility model, the solder resist part is arranged on the radiation layer and is used as a reference mark, and the alignment between the radiation layer and the signal transmission layer can be ensured to be more accurate by accurately controlling the position and the shape of the solder resist part, so that the high-precision positioning requirement of the radiation layer and the signal transmission layer of the waveguide antenna is met.

The invention discloses a wave-absorbing metasurface low-profile wide-angle RCS (radar cross section) reduction tight coupling dipole antenna. The array is composed of a radiation layer, a middle layer, a wave-absorbing metasurface layer and a metal ground layer. The top layer of the radiation layer is a dipole antenna, and the tail ends of radiation arms of the dipole antenna are loaded with coupling patches through metal through holes; the middle layer is a dielectric substrate; the top layer of the wave-absorbing metasurface layer is a pair of symmetrical trident-shaped resistive films loaded with metal through holes, and the bottom layer of the wave-absorbing metasurface layer is a dielectric substrate; the metal ground layer is located at the lowermost layer. According to the invention, the wave-absorbing metasurface is embedded in the tight coupling dipole array antenna to replace a traditional metal ground, so that a low-profile structure is realized. According to the antenna, within the frequency band of 7-14 GHz, the wave absorbing efficiency is higher than 75% when electromagnetic waves are incident at the wide angle of 0-60 degrees, meanwhile, good radiation performance and wide-angle scanning capacity are kept, and the radar cross section is remarkably reduced. The method can be popularized to the low radar cross section design of a traditional antenna, and is suitable for radar and wireless communication systems.

The utility model relates to a substrate processing device and a substrate temperature measurement assembly. The substrate temperature measurement assembly comprises a to-be-measured piece and a temperature measurement device. The to-be-tested piece is used for being placed on a supporting seat of the substrate processing device, and the to-be-tested piece comprises a substrate simulation piece and a radiation layer arranged on the surface of the substrate simulation piece. The temperature measuring device comprises at least one infrared thermometer and is used for acquiring the temperature of a plurality of different positions of the radiation layer. Temperature measurement processing is carried out on the to-be-measured piece through the temperature measurement device, and according to the temperatures of multiple different positions of the to-be-measured piece, the temperatures can be used as a basis for determining whether the temperatures of all parts of the surface of the substrate are uniform or not. Therefore, whether the temperature of the surface of the substrate is uniform or not can be automatically detected in real time without opening the cavity, so that the production efficiency is improved; besides, the radiation layer has high thermal radiation capability, so that the infrared thermometer can accurately sense the temperature of each detection point, the temperature measurement precision is high, and the film deposition quality of the substrate can be further improved.

The application discloses a kind of vehicle-mounted UWB-AOA circular polarization high-precision positioning antenna, it is related to vehicle antenna positioning technical field.The vehicle-mounted UWB-AOA circular polarization high-precision positioning antenna includes: dielectric substrate and radiation layer, and the feed layer below radiation layer, and radiation layer is installed at substrate bottom, it is characterized in that, still include: the one end array of feed layer is close to radiation layer is installed with circular polarization antenna, and vehicle positioning is carried out based on circular polarization antenna, metal shielding layer for isolating external interference is arranged below feed layer, UWB transceiver module is installed below shielding layer, time stamp controller is installed in UWB transceiver module, the present application is positioned based on circular polarization antenna vehicle, to ensure the receiving stability of signal in complex environment, in turn, still can obtain stable and reliable three-dimensional positioning result under complex environment, and then guarantee the high-precision positioning demand of vehicle under dynamic operation condition.

The utility model provides a circularly polarized antenna structure, a wireless communication module and a millimeter wave isolation communication module. The antenna structure comprises a radiation layer, a grounding layer and a microstrip line feed layer which are sequentially stacked from top to bottom. The radiation layer comprises a central circular patch and a parasitic unit; two linear grooves which do not pass through the circle center are formed in the central circular patch along the diameter of the central circular patch; the parasitic unit is an arc-shaped patch and is arranged on the periphery of the central circular patch, and the circle center of the arc-shaped patch coincides with the circle center of the central circular patch; the extension of the linear groove does not touch the arc-shaped patch; and a feed copper column of the microstrip line feed layer penetrates through each layer and then is connected to the vicinity of the circle center of the radiation layer. According to the utility model, the problem of polarization loss can be overcome, the bandwidth of circular polarization is increased, and the wireless communication transmission quality is significantly improved.

The present disclosure belongs to the technical field of antennas. Provided are a panel antenna and an electronic device, which can solve the problems of existing panel antennas, such as low aperture efficiency, uneven radiation amplitude, difficulty in achieving multi-frequency coverage. The panel antenna in the present disclosure comprises a waveguide structure, a first dielectric substrate, a radiation layer and a plurality of switch units, wherein the radiation layer has a plurality of slit openings; the switch units are arranged so as to correspond to the slit openings on a one-to-one basis, and are configured to control whether the slit openings corresponding thereto are open / closed; the radiation layer is divided into a middle region and a peripheral region; and the slit openings located in the middle region among the plurality of slit openings are divided into a plurality of groups, each group of said slit openings comprises at least a plurality of first slit openings, at least some of the first slit openings located in different groups have different sizes, and the closer a group of slit openings to the centre of the middle region, the larger the size of the first slit openings in said group of slit openings. The panel antenna in the present disclosure has the advantages of high aperture efficiency, multi-frequency coverage and even radiation amplitude.

The invention relates to an antenna structure and a preparation method thereof. The antenna structure comprises a flexible radiation layer; the flexible grounding layer is arranged opposite to the flexible radiation layer; the compressible dielectric layer is located between the flexible radiation layer and the flexible grounding layer, the conductive side of the flexible radiation layer is far away from the compressible dielectric layer, and the conductive side of the flexible grounding layer is far away from the compressible dielectric layer; the SMA connector comprises a base and a first connecting part which are connected with each other, the base is located on the side, away from the compressible dielectric layer, of the flexible grounding layer, and the first connecting part is electrically connected with the flexible radiation layer and the flexible grounding layer. The antenna structure composed of the flexible radiation layer, the grounding layer and the compressible dielectric layer can be freely bent and compressed to deform.

The application belongs to the technical field of antennas and relates to a cross-dipole antenna which comprises a metasurface layer, a radiation layer and a ground layer; the metasurface layer is connected with the ground layer and forms a containing space between the metasurface layer and the ground layer; the radiation layer is arranged in the containing space, is connected with the ground layer and is arranged in a spaced mode with the metasurface layer; the radiation layer comprises two pairs of cross-dipoles; two feeding structures are arranged on the ground layer and are connected with the two pairs of cross-dipoles respectively; the radiation layer comprises a dielectric plate and four radiation patches which are arranged in a spaced center-symmetrical mode about the center of the dielectric plate; the dielectric plate and the radiation patches are square structures, one side of the radiation patch is parallel to one side of the dielectric plate; two radiation patches are adjacently arranged on the top surface of the dielectric plate, and the other two radiation patches are adjacently arranged on the bottom surface of the dielectric plate; two opposite radiation patches are connected to serve as a dipole. The application can reduce the profile of the antenna.

The invention provides an antenna unit and antenna equipment, belongs to the technical field of antennas, and aims to enable a transparent antenna to have a filtering effect. The radiation layer is located on one side of the feed structure and comprises a first substrate layer and a radiation patch located on the side, away from the feed structure, of the first substrate layer; wherein the first substrate layer is a transparent substrate layer; the filtering structure and the radiation patch are arranged in the thickness direction of the radiation layer, and a gap is formed between the filtering structure and the radiation patch in the thickness direction of the radiation layer; wherein the filtering structure comprises at least one annular electrode pattern, and the orthographic projection of the annular electrode pattern on the first substrate layer is at least partially overlapped with the orthographic projection of the radiation patch on the first substrate layer.

An array antenna (10), comprising: a feed source layer (1), which comprises a feed network (11) having an input port (12) and a plurality of output ports (13); an energy re-allocation layer (2), which has a plurality of allocation regions, wherein the energy re-allocation layer (2) is used for re-allocating near-field energy at the output ports (13) in the plurality of allocation regions; and a radiation layer (3), which comprises a plurality of radiation units (31) corresponding to the plurality of output ports (13) on a one-to-one basis. In the embodiments of the present disclosure, the near-field energy at the output ports (13) is re-allocated in the plurality of allocation regions by means of the energy re-allocation layer (2), thereby ensuring that the distribution of the re-allocated near-field energy meets requirements; and then the re-allocated near-field energy at the output ports (13) is radiated by means of the radiation units (31) of the radiation layer (3), thereby ensuring the radiation directivity of the radiation units (31), and ensuring the radiation characteristics of the array antenna (10). (FIG. 1)

The invention discloses an all-metal ultra-wideband CTS antenna, comprising a radiation layer, a line source generator layer, a back cavity power divider layer and a planar single-ridge power divider layer which are arranged in order from top to bottom, the line source generator layer is directly connected to the CTS radiation slot of the radiation layer, the back cavity power divider layer and the planar single-ridge power divider are combined to form a broadband multi-channel power divider to excite the line source generator layer, the quasi-TEM wave generated by the line source generator layer is directly fed to the CTS radiation slot of the radiation layer, the 1-to-4 single-ridge power divider in the planar single-ridge power divider layer is realized by sequentially cascading a plurality of H-plane single-ridge T-junctions, when the number of CTS radiation slots in the radiation layer increases, only the planar single-ridge power divider layer, the back cavity power divider layer and the line source generator layer need to be horizontally extended to form a broadband feeding network, and the overall height of the CTS antenna is not increased; the advantages are that the efficiency is significantly improved, the bandwidth is increased, the scalability is greatly improved, the structure is more compact, and the manufacturing and assembly are easy.

The invention belongs to the field of navigation and positioning, and aims to solve the problems that the height of an antenna is increased due to the fact that the bandwidth is increased in an existing lamination-based method, and the gain of the antenna is rapidly reduced due to frequency deviation caused by the fact that gaps between lamination layers of the antenna are changed under the condition that high and low temperatures are changed violently. The invention provides a microstrip antenna device, navigation equipment and a manufacturing method. The microstrip antenna device comprises a base, a feed network and a radiation sheet, the feed network and the radiation sheet are stacked, the feed network is connected with the radiation sheet, and the radiation sheet is fixed on the base; the radiation sheet is provided with a first surface deviating from the feed network, the first surface is provided with a radiation layer, the radiation layer comprises a plurality of radiation sub-layers, and at least part of the radiation sub-layers are distributed around the center of the first surface at intervals; wherein at least one radiation sub-layer is electrically connected with the feed network. The bandwidth of the antenna can be ensured, the height of the antenna can be reduced, and the performance of the antenna is improved.

The invention discloses an array antenna which comprises a radiation layer, and a plurality of radiation slots are formed in the radiation layer. The cavity layer is arranged below the radiation layer, and the cavity layer comprises at least one coupling slot; and the feed layer is arranged below the cavity layer, a feed network is arranged on the feed layer, and the feed network comprises at least one ridge gap waveguide. According to the array antenna, the gap waveguide transmission line which is low in loss and does not need electric contact is used as the feed network of the antenna, the high-order mode resonant cavity can provide higher flexibility, a more compact structure and lower loss, the top layer is the loaded radiation gap of the rectangular groove, and the antenna is more compact in structure. The design of the groove can reduce the loss of energy at the gap and the leakage of non-radiation energy, and realizes the performance improvement of high gain, low loss and wide band of the miniaturized plane millimeter wave array antenna.

The invention discloses an MEMS infrared light source based on in-situ confinement growth processing and a preparation method thereof, and the preparation method comprises the steps: cleaning a silicon substrate, and carrying out the deposition of a supporting layer and a back supporting layer on the upper surface and the lower surface of the silicon substrate respectively; processing a heating electrode, a heating plane electrode, a growth electrode and a growth plane electrode on the supporting layer on the upper surface of the silicon substrate; etching the upper surface or the lower surface of the silicon substrate to form a substrate cavity; and growing a metal black radiation layer on the surface of the growth electrode through in-situ confinement growth processing. According to the preparation method, the metal black radiation layer is obtained based on in-situ confinement growth processing, so that the metal black radiation layer and the growth electrode are reliably combined; the surface emissivity and radiation efficiency of the MEMS light source are improved, the processing flow of the light source chip is simplified, and the processing cost of integrated processing of the infrared light source device and the black-body-like coating is greatly reduced.

The present invention discloses a radiofrequency ablation electrode needle with adjustable radiation zone length, comprising a handle, a needle head, a needle body, and a tail spring; the needle head is made of metal material and is sleeved on the front end of the needle body; the needle body comprises an electrode radiating end, a non-metallic coating, and a tail spring; the expansion and contraction of the tail spring drives the needle body to move inside the needle head, and the length of the electrode radiating end relative to the needle head changes accordingly; a distance measuring sensor is provided in the handle. The present invention also discloses a radiofrequency ablation electrode system with adjustable radiation zone length, and a method for implementing a radiofrequency ablation electrode system with adjustable radiation zone length. The host-side system controls the movement of the needle body through the tail spring to achieve the adjustable function of the single-electrode precise ablation range, and the distance measuring sensor transmits the measured length information to the host-side system, which matches the length value to the optimal output mode to achieve an adjustable and precise ablation clinical effect.

The utility model relates to the technical field of film processing, and discloses a film splitting machine which comprises a bottom frame and fixing frames arranged on the two sides of the surface of the bottom frame, and connecting rollers are arranged on the edges of the two sides of the inner wall of each fixing frame. According to the film splitting machine, through the arrangement of the static elimination assembly and the dust removal assembly, when the film splitting machine is used, the film splitting machine is connected with an external power source to supply power to a static elimination rod, and when the surface of a film is negatively charged, the static elimination rod can attract positive charges in a radiation area; when the surface of the film is positively charged, the static electricity eliminating rod can attract negative charges in the radiation area, so that static electricity on the surface of the film is neutralized and eliminated, the exhaust fan is started, dust on the two faces of the film is sucked away through the dust suction hood, the effect of removing dust on the film is achieved, and it is avoided that in the slitting process of the film, dust on the two faces of the film falls off. And static electricity is generated, dust is adsorbed, the cleanliness of the thin film is affected, and the quality of thin film slitting finished products can be improved.

The invention provides an antenna, an antenna array, a base station antenna, an antenna module, an antenna system and a base station, a radiation layer of the antenna is provided with a radiation cavity, the radiation cavity comprises a first cavity, a second cavity and a third cavity which are sequentially arranged and communicated, and the second cavity and the first cavity are partially or completely stacked and communicated. And the second cavity and the third cavity are partially or completely stacked and communicated. Moreover, the length directions of the first cavity and the third cavity are perpendicular to the thickness direction of the radiation layer, and the length direction of the third cavity inclines by a first angle relative to the length direction of the first cavity. Wherein the opening of one side of the third cavity far away from the second cavity is located on the second surface of the radiation layer, and the opening of one side of the first cavity far away from the second cavity is located on the first surface of the radiation layer and is used for being coupled with a feed structure so as to excite the radiation cavity to radiate electromagnetic waves through the feed structure. The antenna provided by the embodiment of the invention has the functions of low loss, broadband, efficient transmission, horizontal scanning, vertical beam forming, dual polarization and the like.

The present invention discloses a radiation-resistant flight controller for an unmanned aerial vehicle (UAV), comprising a control mechanism and a radiation shielding box mounted on the exterior of the control mechanism. A heat sink is mounted on the exterior of the radiation shielding box. By installing the radiation shielding box on the exterior of the control mechanism, the present invention can ensure high reliability during flight of an aircraft within a certain range of radiation intensity, reduce the risk of crashes, and enable flight reconnaissance missions within the radiation zone. The radiation shielding box is easily removable from the exterior of the control mechanism, making assembly and disassembly simple and convenient, making it suitable for practical use. Multiple processors are provided, enabling data exchange via their respective data buses, providing fault-tolerant computing capabilities. Furthermore, the heat sink is installed on the exterior of the radiation shielding box, thereby improving protection performance.

The utility model provides a supporting piece and an antenna system. The supporting piece comprises a first supporting part and a second supporting part, the first supporting part comprises a first supporting column and a first supporting surface, the top surface of the first supporting column is connected with the bottom surface of the first supporting surface, the top surface of the first supporting surface is used for supporting a radiation layer of the antenna, the radiation layer is used for exciting an antenna oscillator to generate a signal, and the top surface of the first supporting surface is provided with a plurality of second supporting columns; the top surfaces of the plurality of second supporting columns are flush, the top surfaces of the plurality of second supporting columns are used for supporting a gain layer of the antenna, and the gain layer is used for enhancing signals; the second supporting part is arranged on the gain layer, the second supporting part is in a hollow cylinder shape, the top surface of the hollow cylinder is provided with a first connecting part, the first connecting part is used for supporting an adjusting layer of the antenna, and the adjusting layer is used for changing the radiation direction of the antenna. Through the supporting piece, the adjusting layer, the gain layer and the radiation layer of the multi-layer antenna can be effectively fixed at correct positions.

The invention provides a vehicle-mounted antenna, an antenna array, SLP equipment and a vehicle. The vehicle-mounted antenna comprises a first grounding structure, a second grounding structure, a feeding point, a grounding layer and a radiation layer, the radiation layer comprises a first radiation part and a second radiation part, and a first insulation gap is arranged between the first radiation part and the second radiation part. The first grounding structure and the second grounding structure are electrically connected between the first radiation part and the grounding layer, and the feeding point is arranged on the second radiation part to form a 2.5 D antenna form, so that the electrical connection of the grounding layer and the radiation layer is realized, and the size of the overall structure of the antenna is reduced. According to the scheme, the first insulation gap, the first grounding structure and the second grounding structure are arranged in the radiation layer, so that the first radiation part and the second radiation part can be excited to generate different frequency bands, the antenna can support signal transmission of multiple frequency bands at the same time, the multi-frequency-band requirement of the star flash technology is met, the bandwidth of the antenna is widened, and the antenna performance is improved. And the flexibility of the antenna is improved.

An array antenna (10), the array antenna (10) comprising a first radiation layer (11), a first ground layer (12), a power division layer (13), and a coupling layer (14). The first radiation layer (11) comprises first radiation units (111); the power division layer (13) comprises a power division network (131) comprising a power division main port (132) and power division ports (133); and the coupling layer (14) comprises coupling units (141), and each coupling unit comprises a first transmission line (142) and a second transmission line (143) which are coupled. In embodiments of the present disclosure, the coupling units (141) and the power division network (131) are arranged in layers, and the structure of the coupling units (141) is simplified, so as to reduce the mutual influence of the coupling units (141) and the power division network (131). Moreover, the size of the array antenna (10) is reduced to achieve miniaturization, high integration level, and simple structure of the array antenna (10).

The invention provides a high-gain heat dissipation antenna array, which comprises a feed layer, a radiation layer and a metal sheet structure, and is characterized in that the feed layer comprises a switching structure, a feed network and a gap, and energy is coupled to the radiation layer through the gap; a rectangular cavity array is arranged in the radiation layer, a metal via hole array is arranged around each cavity, and electromagnetic energy is excited and radiated through cavity resonance; the metal sheet structure comprises a base and a metal sheet unit array, the base is provided with a rectangular opening through cavity array used for transmitting electromagnetic waves, each metal sheet unit comprises an upper-layer metal sheet, a middle connecting sheet and a lower-layer metal sheet, and the height of the lower-layer metal sheet and the height of the upper-layer metal sheet are adjusted, so that thermal characteristics and electrical characteristics are optimized, and the electromagnetic waves can be transmitted. And the high-gain heat dissipation antenna performance is realized. By reasonably optimizing the shape of the radiating fins, the aperture efficiency of the radiating antenna array is improved, and the antenna array design with high radiating efficiency and high gain is realized.

This invention relates to the field of glass curtain wall film technology, specifically to a glass curtain wall radiation cooling film and its preparation process. The cooling film has a layered structure, comprising, from the side closest to the glass substrate outwards: a self-healing adhesion layer for forming a high-strength, self-healing interface with the glass substrate; a photothermal response radiation modulation layer disposed on the self-healing adhesion layer for passively adjusting the emissivity of its infrared band according to ambient temperature; a gradient porous radiation layer disposed on the photothermal response radiation modulation layer for efficiently emitting infrared radiation in the 8-13μm band; and an environmentally friendly interface reinforcement layer disposed on the gradient porous radiation layer. This invention, through its self-healing adhesion layer, achieves, for the first time in the field of radiation cooling films, autonomous repair of interface damage, fundamentally solving the problem of debonding failure caused by stress fatigue in curtain wall applications and greatly extending its service life.

The utility model discloses an artificial magnetic conductor and wearable equipment. The artificial magnetic conductor comprises a plurality of sub artificial magnetic conductors; each sub artificial magnetic conductor comprises a substrate, a radiation layer located on one side of the substrate and a grounding layer located on the side, away from the radiation layer, of the substrate. The radiation layer comprises a first branch part, a second branch part and a plurality of third branch parts; the second branch part surrounds the first branch part, and a gap exists between the first branch part and the second branch part; and the third branch part is distributed in the gap and is respectively connected with the first branch part and the second branch part. According to the utility model, by adopting the artificial magnetic conductor, the backward radiation of the antenna loaded with the artificial magnetic conductor can be reduced.