Abstract: The present application discloses a conversion apparatus from a chip package to a waveguide, a radio frequency apparatus and a radar apparatus. The conversion apparatus includes: a first metal layer as a metal ground layer, a second metal layer, a third metal layer, a shielding metallization via, a conversion via, and a dielectric substrate disposed between different metal layers to function as a support; the second metal layer is configured to lay an RF trace; the third metal layer is configured to dispose a patch element; a capacitance formed between the RF trace and patch element introduces capacitance characteristic; multiple shielding metallization vias are ground vias around the patch element and RF trace for guiding RF signal propagation; at least one conversion metallization via is disposed on one end of the RF trace close to the patch element, for connecting the RF trace and patch element and introducing inductance characteristic.

Abstract: The antenna includes: a first antenna structure extending along a first direction and having a first side and a second side. The antenna further includes multiple second antenna structures arranged along the first direction, where each of the multiple second antenna structures is connected to the first side and extends in a direction opposite to the second direction with an extension length of k1×(?/2). The antenna further includes multiple third antenna structures arranged along the first direction, where each of the multiple third antenna structures is connected to the second surface and extends along the second direction with an extension length of k2×(?/2). The multiple second antenna structures and the multiple third antenna structures are arranged alternatingly along the first direction. One of k1 and k2 is a positive integer greater than 1, and the other is a positive integer greater than or equal to 1.

Abstract: The present disclosure provides a package antenna and a radar assembly package. The package antenna includes a first antenna and a second antenna adjacent to the first antenna. Directivity of electromagnetic wave from the package antenna is achieved through the cancelation of radiation fields from the first and second antennas.

Abstract: The present disclosure provides an antenna in package, a RF chip, a test device and a test method. The antenna in package includes at least one antenna, one or more coupling structures and at least one testing terminal. The at least one antenna, the one or more coupling structures and the at least one testing terminal are disposed in a package body. The one or more coupling structures are coupled to one or more radiation units of the at least one antenna, and each coupling structure of the one or more coupling structures is coupled to a respective testing terminal of the at least one testing terminal. The one or more coupling structures are configured to transmit RF test signals of a RF link in which the one or more radiation units are disposed during testing the RF link.

Abstract: An onboard antenna, a radio equipment and an electronic device. The onboard antenna includes a dielectric substrate, an antenna and a metal block, wherein the antenna is located on the dielectric substrate, a projection of the metal block on a plane where the dielectric substrate is located is not overlapped with a projection of the antenna on the plane where the dielectric substrate is located, the metal block is located on the dielectric substrate in a polarization direction of the antenna, and a distance between a metal edge of the metal block on a side close to the antenna and the antenna is greater than a coupling threshold. Using this onboard antenna, an influence of surface waves on the pattern can be suppressed to a certain extent by arranging the metal block, and a jitter of the antenna pattern can be reduced.

Abstract: A boron-sulfur-codoped porous carbon material and a preparation method is disclosed. The boron-sulfur-codoped porous carbon material includes a porous carbon, and B and S doped in the surface and pores of the porous carbon; where B has a doping content of 5.56 wt.% to 7.85 wt.%, and S has a doping content of 0.90 wt.% to 1.55 wt.%. Test results of examples show that the boron-sulfur-codoped porous carbon material has high doping contents of B and S, and abundant pores; in a three-electrode system, the material shows a maximum specific capacitance of 168 F·g- 1 to 290.7 F·g-1 at 0.5 A·g-1; after the material is assembled into a symmetrical supercapacitor, the supercapacitor has an ultra-high energy density of 11.3 Wh·kg-1 to 16.65 Wh·kg-1 in a neutral electrolyte system, and has a capacitance retention rate of 97.09% to 100.67% after 10,000 life tests.

Abstract: A connectionless system for handing off data, content or information includes a proximity detection component that allows devices to detect other local devices within range. Devices within range may use advertisement and scanning to exchange communications so that one device can handoff data, content, or information to another device without having to connect, e.g., pair, with the other device(s).

Abstract: An attenuation apparatus and a test system. The attenuation apparatus includes a signal transmission channel and at least one radiation loss structure, wherein the signal transmission channel is configured to perform transmission attenuation on the energy of a transmitted signal; the radiation loss structure is arranged in the signal transmission channel; the radiation loss structure has a first operating state and a second operating state; when the radiation loss structure is in the first operating state, the radiation loss structure is configured to perform radiation attenuation on the energy of a signal transmitted by the signal transmission channel; and when the radiation loss structure is in the second operating state, the radiation loss structure is configured to perform transmission attenuation on the energy of the signal transmitted by the signal transmission channel.

Abstract: A microstrip antenna, an antenna array, a radar, and a vehicle are provided. The microstrip antenna includes: a dielectric layer, and a metal layer and a ground plane layer disposed at two sides of the dielectric layer, wherein the metal layer includes a first radiation patch and a feeding portion; a length of a long side edge of the first radiation patch is determined based on an operating wavelength of the microstrip antenna, and a length of a short side edge of the first radiation patch is smaller than the length of the long side edge; the feeding portion is coupled between a center position of the long side edge of the first radiation patch and a short side edge, and the feeding portion is configured to transmit a high frequency signal to the first radiation patch or to transmit a space radiation signal received by the first radiation patch.

Abstract: Provided is a protein having Toxoplasma immunogenicity, the protein being a cyclophilin mutant protein and consisting of the amino acid sequence as shown in SED 2. Further provided is a nucleic acid that may encode a protein having Toxoplasma immunogenicity, which has the nucleic acid sequence as shown in SEQ ID NO. 1. Further provided is a vaccine, which is obtained by double-digesting a Toxoplasma antigen gene and then linking the same to a prokaryotic expression vector such as pET28a, and transforming the same into a prokaryotic expression engineering strain such as BL21(DE3), thereby inducing the high-efficiency expression thereof, wherein the inducing the high-efficiency expression thereof, wherein the purified protein is a soluble protein which maintains specific immunogenicity thereof.

Abstract: A local and private model can be used to analyze textual, visual, and auditory content on a user's local device to provide notifications about events which are stressful beyond a predetermined threshold. The model can be trained by a combination of health sensor data and an analysis of the content. Multiple models or techniques can be used to analyze the content and vectorize the content. A vector based approach can be used to classify future content as stressful when meeting the predetermined threshold.

Abstract: A connectionless system for handing off data, content or information includes a proximity detection component that allows devices to detect other local devices within range. Devices within range may use advertisement and scanning to exchange communications so that one device can handoff data, content, or information to another device without having to connect, e.g., pair, with the other device(s).

Abstract: Systems and methods are described that obtain depth data associated with a scene captured by an electronic device, obtain location data associated with a plurality of physical objects within a predetermined distance of the electronic device, generate a plurality of augmented reality objects configured to be displayed over a portion of the plurality of physical objects, and generate a plurality of proximity layers corresponding to the at least one scene, wherein a respective proximity layer is configured to trigger display of the auxiliary data corresponding to AR objects associated with the respective proximity layer while suppressing other AR objects.

Abstract: Disclosed are various embodiments for selecting augmenting reality (AR) objects based on contextual cues associated with an image captured by a camera associated with electronic device. Contextual cues are obtained at an electronic device and AR objects are identified from a memory associated with the electronic device. The electronic device implements a processor employing image segmentation techniques to combine the identified AR objects with the captured image and render the combined image for display at a display associated with the electronic device.

Abstract: The present disclosure provides a package antenna and a radar assembly package. The package antenna includes a first antenna and a second antenna adjacent to the first antenna. Directivity of electromagnetic wave from the package antenna is achieved through the cancelation of radiation fields from the first and second antennas.

Abstract: Systems and methods for location-based device control are provided. Example systems and methods include determining a location estimate for a computing device and identifying a controllable device based on the location estimate. Some examples also include determining a relative location of the controllable device with respect to the computing device and triggering display, on the computing device, of a user interface for interacting with the controllable device based on the relative location. Another example system and method includes identifying a controllable device within a physical space based on an aiming direction in which a computing device is aimed, determining an angular offset of the controllable device with respect to the aiming direction of the computing device, and triggering display, on the computing device, of a user interface that indicates the determined angular offset.

Abstract: Provided is a protein having Toxoplasma immunogenicity, the protein being a cyclophilin mutant protein and consisting of the amino acid sequence as shown in SED 2. Further provided is a nucleic acid that may encode a protein having Toxoplasma immunogenicity, which has the nucleic acid sequence as shown in SEQ ID NO. 1. Further provided is a vaccine, which is obtained by double-digesting a Toxoplasma antigen gene and then linking the same to a prokaryotic expression vector such as pET28a, and transforming the same into a prokaryotic expression engineering strain such as BL21(DE3), thereby inducing the high-efficiency expression thereof, wherein the inducing the high-efficiency expression thereof, wherein the purified protein is a soluble protein which maintains specific immunogenicity thereof.

Abstract: An antenna includes a substrate and a dipole antenna disposed on a surface of the substrate. The dipole antenna includes a first metal structure and a second metal structure arranged symmetrically with respect to each other. The first metal structure includes a head proximal to the second metal structure, and a tail distal from the second metal structure. A width of the first metal structure varies between the head and the tail.

Abstract: Disclosed are various embodiments for selecting augmenting reality (AR) objects based on contextual cues associated with an image captured by a camera associated with electronic device. Contextual cues are obtained at an electronic device and AR objects are identified from a memory associated with the electronic device. The electronic device implements a processor employing image segmentation techniques to combine the identified AR objects with the captured image and render the combined image for display at a display associated with the electronic device.

Abstract: Systems and methods are described that obtain depth data associated with a scene captured by an electronic device, obtain location data associated with a plurality of physical objects within a predetermined distance of the electronic device, generate a plurality of augmented reality objects configured to be displayed over a portion of the plurality of physical objects, and generate a plurality of proximity layers corresponding to the at least one scene, wherein a respective proximity layer is configured to trigger display of the auxiliary data corresponding to AR objects associated with the respective proximity layer while suppressing other AR objects.