Abstract: Aspects of the disclosure provide an evolutionary neural architecture search (ENAS) method. For example, the ENAS method can include steps (a) performing one or more evolutionary operations on an initial population of neural architectures to generate offspring neural architectures, (b) evaluating performance of each of the offspring neural architectures to obtain at least one evaluation value of the offspring neural architecture with respect to a performance metric, (c) adjusting the evaluation values of the offspring neural architectures based on at least one constraint on the evaluation values, (d) selecting at least one of the offspring neural architectures as a new population of neural architectures, and (e) outputting the new population of neural architectures as a last population of neural architectures when a stopping criterion is achieved, or (f) iterating steps (a) to (d) with the new population of neural architectures being taken as the initial population of neural architectures.

Abstract: A method of manufacturing chip antenna and a structure of the chip antenna. The method includes the following steps: preparing a substrate, drilling a plurality of rows of external through holes and internal through holes arranged longitudinally, forming fishing grooves at the predetermined distance between every two of the internal through holes arranged longitudinally, electroplating a metal material on the external through holes and the internal through holes, to form a conductive layer. Afterward, a circuit layer is formed on the conductive layer by exposure, development, and etching techniques. An ink is printed on the substrate after the circuit layer finished, and the ink cover parts of the circuit layer and parts of the substrate exposed, to form a solder mask and a recognition pattern layer. Finally, a longitudinal cutting line and a horizontal cutting line are cut on the substrate, and to form a chip antenna.

Abstract: An upright multipath antenna structure includes a base body, a first path antenna metal layer and a second path antenna metal layer. The base body includes a wiring section and a fixing section. The fixing section is connected to the wiring section. The first path antenna metal layer is arranged on the wiring section of the base body. The second path antenna metal layer is arranged on the wiring section of the base body and is electrically connected to the first path antenna metal layer. The base body includes a plurality of fixing columns. The fixing columns are arranged in the fixing section of the base body.

Abstract: An antenna-structure combination method includes following steps. Provide a circuit board. At least one joint hole penetrating the circuit board is formed in the circuit board. At least one electrode layer and one feeding line are formed on a periphery of the joint hole. The feeding line is electrically connected to the electrode layer. Provide a chip antenna. The chip antenna includes a base. The base has a wiring section. A fixed connection section is arranged at one end of the wiring section. The fixed connection section is formed with a conductive layer. The fixed connection section of the chip antenna penetrates the joint hole of the circuit board, so that the conductive layer is electrically fixed to the electrode layer, so that the chip antenna is fixedly connected onto the circuit board in an upright manner.

Abstract: An antenna-structure combination method includes following steps. Provide a circuit board. At least one joint hole penetrating the circuit board is formed in the circuit board. At least one electrode layer and one feeding line are formed on a periphery of the joint hole. The feeding line is electrically connected to the electrode layer. Provide a chip antenna. The chip antenna includes a base. The base has a wiring section. A fixed connection section is arranged at one end of the wiring section. The fixed connection section is formed with a conductive layer. The fixed connection section of the chip antenna penetrates the joint hole of the circuit board, so that the conductive layer is electrically fixed to the electrode layer, so that the chip antenna is fixedly connected onto the circuit board in an upright manner.

Abstract: A method of manufacturing chip antenna and a structure of the chip antenna. The method includes the following steps: preparing a substrate, drilling a plurality of rows of external through holes and internal through holes arranged longitudinally, forming fishing grooves at the predetermined distance between every two of the internal through holes arranged longitudinally, electroplating a metal material on the external through holes and the internal through holes, to form a conductive layer. Afterward, a circuit layer is formed on the conductive layer by exposure, development, and etching techniques. An ink is printed on the substrate after the circuit layer finished, and the ink cover parts of the circuit layer and parts of the substrate exposed, to form a solder mask and a recognition pattern layer. Finally, a longitudinal cutting line and a horizontal cutting line are cut on the substrate, and to form a chip antenna.

Abstract: A chip-type antenna structure includes a baseboard, a matching element, a radiation single body and a frequency-modulation element. The baseboard includes a first-ground surface, a first-clearance area and a signal-feed-in unit. A second-ground surface, a second-clearance area, a third-ground surface and a plurality of via holes through the baseboard and electrically connected to the first-ground surface and the second-ground surface are arranged on the other side of the baseboard. The matching element is electrically connected between the signal-feed-in unit and the first-ground surface. One side of the radiation single body is electrically connected to the signal-feed-in unit through the via holes. The other side of the radiation single body is electrically connected to the third-ground surface.

Abstract: A chip-type antenna structure includes a baseboard, a matching element, a radiation single body and a frequency-modulation element. The baseboard includes a first-ground surface, a first-clearance area and a signal-feed-in unit. A second-ground surface, a second-clearance area, a third-ground surface and a plurality of via holes through the baseboard and electrically connected to the first-ground surface and the second-ground surface are arranged on the other side of the baseboard. The matching element is electrically connected between the signal-feed-in unit and the first-ground surface. One side of the radiation single body is electrically connected to the signal-feed-in unit through the via holes. The other side of the radiation single body is electrically connected to the third-ground surface.

Abstract: An enhanced printed circuit board monopole antenna includes a baseplate, a signal feed-in unit, a first-radiation unit, a second-radiation unit and an auxiliary ground unit. The first-radiation unit and the second-radiation unit are arranged on a front side and an edge side of the baseplate. The auxiliary ground unit is arranged on the edge side and electrically connected to a first ground unit and a second ground unit on the baseplate. Adjusting the first-radiation unit controls 88 MHZ-60 GHZ frequency range impedance, resonant frequency, bandwidth and radiation effect. According to the frequency wave length (1?, ½?, ¼? or ??) formed by the first-radiation unit and the second-radiation unit cooperating with each other, controlling 88 MHZ-60 GHZ frequency range achieves the predetermined target impedance, resonant frequency, bandwidth and radiation efficiency. The antenna radiation efficiency can be increased effectively.

Abstract: An enhanced printed circuit board monopole antenna includes a baseplate, a signal feed-in unit, a first-radiation unit, a second-radiation unit and an auxiliary ground unit. The first-radiation unit and the second-radiation unit are arranged on a front side and an edge side of the baseplate. The auxiliary ground unit is arranged on the edge side and electrically connected to a first ground unit and a second ground unit on the baseplate. Adjusting the first-radiation unit controls 88 MHZ-60 GHZ frequency range impedance, resonant frequency, bandwidth and radiation effect. According to the frequency wave length (1?, ½?, ¼? or ??) formed by the first-radiation unit and the second-radiation unit cooperating with each other, controlling 88 MHZ-60 GHZ frequency range achieves the predetermined target impedance, resonant frequency, bandwidth and radiation efficiency. The antenna radiation efficiency can be increased effectively.

Abstract: A single feed-in dual-band antenna structure includes a first radiation unit, a basal plate and a plurality of matching components. The basal plate includes a front side, a back side and an edge side. A first ground unit, a signal feed-in unit, a second radiation unit and an electrode part are arranged on the front side. A third radiation unit is arranged on the edge side. A second ground unit is arranged on the back side of the basal plate. The first radiation unit is electrically connected to the electrode part. The first radiation unit is adjusted to control the 2.45 GHZ frequency range impedance, resonant frequency, bandwidth and radiation effect. The third radiation unit frequency wave length controls the 5 GHZ frequency range to achieve the predetermined target impedance, resonant frequency, bandwidth and radiation efficiency. The antenna size can be reduced effectively.

Abstract: A single feed-in dual-band antenna structure includes a first radiation unit, a basal plate and a plurality of matching components. The basal plate includes a front side, a back side and an edge side. A first ground unit, a signal feed-in unit, a second radiation unit and an electrode part are arranged on the front side. A third radiation unit is arranged on the edge side. A second ground unit is arranged on the back side of the basal plate. The first radiation unit is electrically connected to the electrode part. The first radiation unit is adjusted to control the 2.45 GHZ frequency range impedance, resonant frequency, bandwidth and radiation effect. The third radiation unit frequency wave length controls the 5 GHZ frequency range to achieve the predetermined target impedance, resonant frequency, bandwidth and radiation efficiency. The antenna size can be reduced effectively.

Abstract: An enhanced printed circuit board monopole antenna includes a baseplate, a signal feed-in unit, a first-radiation unit, a second-radiation unit and an auxiliary ground unit. The first-radiation unit and the second-radiation unit are arranged on a front side and an edge side of the baseplate. The auxiliary ground unit is arranged on the edge side and electrically connected to a first ground unit and a second ground unit on the baseplate. Adjusting the first-radiation unit controls 88 MHZ-60 GHZ frequency range impedance, resonant frequency, bandwidth and radiation effect. According to the frequency wave length (1?, ½?, ¼? or ??) formed by the first-radiation unit and the second-radiation unit cooperating with each other, controlling 88 MHZ-60 GHZ frequency range achieves the predetermined target impedance, resonant frequency, bandwidth and radiation efficiency. The antenna radiation efficiency can be increased effectively.

Abstract: A buckle for adjusting a length of a strap includes a first body and a locking unit. The first body has a first body unit having a first main body surrounding a containment space, a first through hole and a second through hole disposed separately on the first main body, and a first rod disposed in the containment space. The locking unit has a columnar shape and disposed in the containment space, the locking unit further having two flat surfaces, a side surface connected between an edge of each flat surface, and a supporting aperture accepting the first rod. Each side surface further has a first curved portion, a vertical surface connected to the first curved portion at one end and a second curved portion connected to another end of the vertical surface, and a first protrusion connected to both of the first curved portion and the second curved portion.

Abstract: A buckle for adjusting a length of a strap includes a first body and a locking unit. The first body has a first body unit having a first main body surrounding a containment space, a first through hole and a second through hole disposed separately on the first main body, and a first rod disposed in the containment space. The locking unit has a columnar shape and disposed in the containment space, the locking unit further having two flat surfaces, a side surface connected between an edge of each flat surface, and a supporting aperture accepting the first rod. Each side surface further has a first curved portion, a vertical surface connected to the first curved portion at one end and a second curved portion connected to another end of the vertical surface, and a first protrusion connected to both of the first curved portion and the second curved portion.