Abstract: Embodiments of the present application relate to the technical field of communication, and disclose an antenna element and an antenna array, the antenna element including a dielectric substrate (10), a radiation unit (20) and a feed unit (30); a first support column (11) is provided on the dielectric substrate (10); the radiation unit (20) and the feed unit (30) are an integrally formed structure, at least one of the radiation unit (20) and the feed unit (30) being provided with a first through hole (21), the first support column (11) passing through the first through hole (21), and the first support column (11) and an inner wall of the first through hole (21) being fixedly connected by means of hot melting.

Abstract: The invention relates to a curable coating composition comprising a nanoparticle-polymer composition and, optionally, superamphiphobic nanoparticles. The nanoparticle-polymer composition comprises the reaction product of an epoxy resin, a hydroxy-terminated poly(dimethylsiloxane), and a silane coupling agent, and a hybrid nanofiller. The superamphiphobic nanoparticles comprises the reaction product of silicon dioxide nanoparticles and 1H,1H,2H,2H-perfluorodecyltrichlorosilane and/or 1H,1H,2H,2H-perfluorododecyltrichlorosilane (FDDTS). The invention further relates to a cured coating composition of the invention, objects coated with the curable coating composition of the invention, methods for making the curable coating composition of the invention, and the use of the curable coating composition of the invention to coat substrates.

Abstract: Provided in the embodiments of the present disclosure are a low frequency radiation unit, an antenna, a multi-frequency shared antenna, and a fusion antenna architecture. The low frequency radiation unit is disposed on a side of a metal reflection plate, and includes a Printed Circuit Board (PCB) dielectric plate 10, a medium support frame 70, a coaxial cable 80, and metal radiators provided on a front side and back side of 10. 70 is connected to the metal radiators, and is configured to support the metal radiators. 80 is disposed on 70, is connected to the metal radiators, and feeds the metal radiators. Such that a 4G low frequency antenna is flexibly disposed above a 5G high frequency antenna, thereby avoiding interference of Balun with the 5G high frequency antenna; and low mutual coupling is achieved, such that internal space of an antenna is saved.

Abstract: A method for forming a through-via in a substrate having opposing first and second surfaces can include directing a focused beam of laser pulses through the first surface and through the second surface of the substrate. The focused beam of laser pulses can have a wavelength to which the substrate is at least partially transparent, and an optical intensity less than an optical breakdown intensity of the substrate. The focused beam of laser pulses may have a pulse repetition rate, a peak optical intensity and an average power at the substrate driving a cumulative heating effect to melt a region of the substrate. The pulses may have a pulse width, and wherein the peak optical intensity, pulse repetition rate, average power and pulse width are selected such that the through-via is formed in less than 120 ?s.

Abstract: A method for forming a through-via in a substrate having opposing first and second surfaces can include directing a focused beam of laser pulses into the substrate through the first surface of the substrate and, subsequently, through the second surface of the substrate. The focused beam of laser pulses can have a wavelength to which the substrate is at least substantially transparent and a beam waist of the focused beam of laser pulses is closer to the second surface than to the first surface. The focused beam of laser pulses is characterized by a pulse repetition rate, a peak optical intensity at the substrate and an average power at the substrate sufficient to: melt a region of the substrate near the second surface, thereby creating a melt zone within the substrate; propagate the melt zone toward the first surface; and vaporize or boil material of the substrate and located within the melt zone.

Abstract: The invention relates to a first curable coating composition comprising a first layer comprising at least one epoxy resin and at least one hybrid nanofiller, and a second layer comprising carbon nanotubes (CNTs). This invention also relates to a second curable coating composition comprising at least one hybrid nanofiller; at least one epoxy resin; and at least one curing agent. This invention also relates to methods of making the curable coating compositions. This invention also relates to methods for coating the surface of a metallic coated substrate.

Abstract: Numerous embodiments are disclosed. Many of which relate to methods of forming vias in workpieces such as printed circuit boards. Some embodiments relates techniques for indirectly ablating a region of an electrical conductor structure of, for example, a printed circuit board by spatially distributing laser energy throughout the region before the electrical conductor is indirectly ablated. Other embodiments relate to techniques for temporally-dividing laser pulses, modulating the optical power within laser pulses, and the like.

Abstract: The invention relates to a curable coating composition comprising a nanoparticle-polymer composition and, optionally, superamphiphobic nanoparticles. The nanoparticle-polymer composition comprises the reaction product of an epoxy resin, a hydroxy-terminated poly(dimethylsiloxane), and a silane coupling agent, and a hybrid nanofiller. The superamphiphobic nanoparticles comprises the reaction product of silicon dioxide nanoparticles and 1H,1H,2H,2H-perfluorodecyltrichlorosilane and/or 1H,1H,2H,2H-perfluorododecyltrichlorosilane (FDDTS). The invention further relates to a cured coating composition of the invention, objects coated with the curable coating composition of the invention, methods for making the curable coating composition of the invention, and the use of the curable coating composition of the invention to coat substrates.

Abstract: One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.

Abstract: Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to processing of workpieces in a manner resulting in enhanced accuracy, throughput, etc. Other embodiments relate to realtime Z-height measurement and, when suitable, compensation for certain Z-height deviations. Still other embodiments relate to modulation of scan patterns, beam characteristics, etc., to facilitate feature formation, avoid undesirable heat accumulation, or otherwise enhance processing throughput. A great number of other embodiments and arrangements are also detailed.

Abstract: A method for forming a through-via in a substrate having opposing first and second surfaces can include directing a focused beam of laser pulses into the substrate through the first surface of the substrate and, subsequently, through the second surface of the substrate. The focused beam of laser pulses can have a wavelength to which the substrate is at least substantially transparent and a beam waist of the focused beam of laser pulses is closer to the second surface than to the first surface. The focused beam of laser pulses is characterized by a pulse repetition rate, a peak optical intensity at the substrate and an average power at the substrate sufficient to: melt a region of the substrate near the second surface, thereby creating a melt zone within the substrate; propagate the melt zone toward the first surface; and vaporize or boil material of the substrate and located within the melt zone.

Abstract: Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to processing of workpieces in a manner resulting in enhanced accuracy, throughput, etc. Other embodiments relate to realtime Z-height measurement and, when suitable, compensation for certain Z-height deviations. Still other embodiments relate to modulation of scan patterns, beam characteristics, etc., to facilitate feature formation, avoid undesirable heat accumulation, or otherwise enhance processing throughput. A great number of other embodiments and arrangements are also detailed.

Abstract: One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.

Abstract: One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.

Abstract: Apparatus and techniques for laser-processing workpieces can be improved, and new functionalities can be provided. Some embodiments discussed relate to processing of workpieces in a manner resulting in enhanced accuracy, throughput, etc. Other embodiments relate to realtime Z-height measurement and, when suitable, compensation for certain Z-height deviations. Still other embodiments relate to modulation of scan patterns, beam characteristics, etc., to facilitate feature formation, avoid undesirable heat accumulation, or otherwise enhance processing throughput. A great number of other embodiments and arrangements are also detailed.

Abstract: One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.

Abstract: One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.

Abstract: One embodiment of the present invention can be characterized as a method for controlling a multi-axis machine tool that includes obtaining a preliminary rotary actuator command (wherein the rotary actuator command has frequency content exceeding a bandwidth of a rotary actuator), generating a processed rotary actuator command based, at least in part, on the preliminary rotary actuator command, the processed rotary actuator command having frequency content within a bandwidth of the rotary actuator and generating a first linear actuator command and a second linear actuator command based, at least in part, on the processed rotary actuator command. The processed rotary actuator command can be output to the rotary actuator, the first linear actuator command can be output to a first linear actuator and the second linear actuator command can be output to a second linear actuator.

Abstract: The audio coding method and system of lattice vector quantization is provided in the invention. The method comprises: dividing frequency domain coefficients of an audio signal for which a modified discrete cosine transform (MDCT) has been performed into a plurality of coding sub-bands, and quantizing and coding an amplitude envelope value of each coding sub-band to obtain coded bits of amplitude envelopes; performing bit allocation on each coding sub-band, and performing normalization, quantization and coding respectively on vectors in a low bit coding sub-band with pyramid lattice vector quantization and on vectors in a high bit coding sub-band with sphere lattice vector quantization to obtain coded bits of the frequency domain coefficients; multiplexing and packing the coded bits of the amplitude envelope and the coded bits of the frequency domain coefficients of each coding sub-band, then sending them to a decoding side.

Abstract: The invention provides a compensation method for audio frame loss in a MDCT domain, the method comprising: when a frame currently lost is a Pth frame, obtaining a set of frequencies to be predicted, and for each frequency in the set, using phases and amplitudes of a plurality of frames before a (P?1)th frame in a MDCT-MDST domain to predict a phase and an amplitude of the Pth frame, and using the predicted phase and amplitude to obtain a MDCT coefficient of the Pth frame at each corresponding frequency; for a frequency outside the set, using MDCT coefficients of a plurality of frames before the Pth frame to calculate a MDCT coefficient value of the Pth frame at the frequency; performing an IMDCT for the MDCT coefficients of the Pth frame to obtain a time domain signal of the Pth frame.