Abstract: An electromagnetic wave guidance and beam reshaping structure is favorable to incorporate a radiation source antenna into an energy focusing system. The electromagnetic wave guidance and beam reshaping structure includes a substrate, a plurality of metal patterns and a plurality of hollow structures. The substrate includes a central portion and a peripheral portion that surrounds the central portion. The plurality of metal patterns are disposed on the central portion. The plurality of hollow structures are disposed in the peripheral portion. The metal patterns are axisymmetrically arranged with respect to a central axis of the substrate, and the hollow structures are axisymmetrically arranged with respect to the central axis of the substrate.

Abstract: A reconfigurable intelligent surface (RIS) antenna includes an RIS antenna body and a bias circuit. The RIS antenna body includes a plurality of RIS antenna units. The bias circuit is electrically coupled to the RIS antenna units of the RIS antenna body. Each RIS antenna unit includes: a metal pattern, a dielectric substrate and a control unit. The metal pattern and the control unit are formed on the dielectric substrate. The metal pattern has a resonance frequency. The control unit includes at least one metal oxide resistive element. The control unit is electrically coupled to the metal pattern and the bias circuit for changing the resonance frequency of the metal pattern by adjusting a bias applied by the bias circuit.

Abstract: An electromagnetic wave guidance and beam reshaping structure is favorable to incorporate a radiation source antenna into an energy focusing system. The electromagnetic wave guidance and beam reshaping structure includes a substrate, a plurality of metal patterns and a plurality of hollow structures. The substrate includes a central portion and a peripheral portion that surrounds the central portion. The plurality of metal patterns are disposed on the central portion. The plurality of hollow structures are disposed in the peripheral portion. The metal patterns are axisymmetrically arranged with respect to a central axis of the substrate, and the hollow structures are axisymmetrically arranged with respect to the central axis of the substrate.

Abstract: The disclosure relates to a filter including dielectric substrate, ground and microstrip line layers, and signal and ground vias. The ground layer is formed on the dielectric substrate and has a ground plane and signal terminal contacts. The microstrip line layer is located on the dielectric substrate and includes microstrip resonators, common electrode and input and output terminal contacts. The input and output terminal contacts are connected to the microstrip resonators. The signal and ground vias extend among the ground layer, the dielectric substrate, and the microstrip line layer. The signal terminal contacts are connected to the input and output terminal contacts through the signal vias. The ground plane is connected to the common electrode through the ground vias. The filter further includes at least one capacitive coupling unit capacitive-coupled with two of the microstrip resonators adjacent to each other.

Abstract: The disclosure relates to a filter including dielectric substrate, ground and microstrip line layers, and signal and ground vias. The ground layer is formed on the dielectric substrate and has a ground plane and signal terminal contacts. The microstrip line layer is located on the dielectric substrate and includes microstrip resonators, common electrode and input and output terminal contacts. The input and output terminal contacts are connected to the microstrip resonators. The signal and ground vias extend among the ground layer, the dielectric substrate, and the microstrip line layer. The signal terminal contacts are connected to the input and output terminal contacts through the signal vias. The ground plane is connected to the common electrode through the ground vias. The filter further includes at least one capacitive coupling unit capacitive-coupled with two of the microstrip resonators adjacent to each other.

Abstract: An antenna array module is provided, which includes a circuit layer, an antenna dielectric layer, a metal plate and a chip. The circuit layer includes a signal line, a ground layer and a first dielectric material; the ground layer includes a coupling slot, and the signal line is connected to the chip. The antenna dielectric layer is disposed on the circuit layer and the antenna dielectric layer includes a second dielectric material; the thermal conductivity coefficient of the second dielectric material is lower than the thermal conductivity coefficient of the first dielectric material. The metal plate is disposed on the antenna dielectric layer; the signal line is coupled to the metal plate via the coupling slot.

Abstract: An antenna array module is provided, which includes a circuit layer, an antenna dielectric layer, a metal plate and a chip. The circuit layer includes a signal line, a ground layer and a first dielectric material; the ground layer includes a coupling slot, and the signal line is connected to the chip. The antenna dielectric layer is disposed on the circuit layer and the antenna dielectric layer includes a second dielectric material; the thermal conductivity coefficient of the second dielectric material is lower than the thermal conductivity coefficient of the first dielectric material. The metal plate is disposed on the antenna dielectric layer; the signal line is coupled to the metal plate via the coupling slot.

Abstract: A metal conducting structure includes a first metal conducting layer, a second metal conducting layer, and a third metal conducting layer. The first metal conducting layer consists of a first polymer material and first metal particles. The first metal conducting layer is covered by the second metal conducting layer which is a structure with pores, the structure consists of second metal particles. The second metal conducting layer is covered by the third metal conducting layer. The pores of the second metal conducting layer are filled with a metal material of the third metal conducting layer.

Abstract: A metal conducting structure includes a first metal conducting layer, a second metal conducting layer, and a third metal conducting layer. The first metal conducting layer consists of a first polymer material and first metal particles. The first metal conducting layer is covered by the second metal conducting layer which is a structure with pores, the structure consists of second metal particles. The second metal conducting layer is covered by the third metal conducting layer. The pores of the second metal conducting layer are filled with a metal material of the third metal conducting layer.

Abstract: A coating device is provided, and includes a coater and an electrical field generator. The coater contains a slurry or ink and has an outlet. The slurry or ink is coated on a substrate through the outlet. The substrate is disposed adjacent to the outlet, and loads the slurry or ink from the outlet of the coater to form a wet film. The electrical field generator is disposed under the substrate and provides the electrical field, and thus the wet film stacks tightly on the substrate due to the attraction of the electrical field.

Abstract: A radio frequency (RF) identification tag including a substrate, a planar antenna, an RF chip, a plurality of signal conductors and a plurality of ground conductors is provided. The RF chip receives an RF signal from the planar antenna to generate an identification code. The signal conductors are coupled to the planar antenna. The ground conductors, interlaced on two opposite sides of the signal conductors, and the signal conductors are adjacent to each other and disposed on the substrate to form a coplanar waveguide structure which includes an impedance match portion and a transmission portion. The impedance match portion has an input end coupled to the signal conductors and a ground plane coupled to the ground conductors. The RF chip is disposed between the input end and the ground plane. The transmission portion is connected between the impedance match portion and the planar antenna.

Abstract: A wireless communication apparatus in one embodiment includes a bag body and a radio frequency device. The bag body has at least a first slot, which extends to an edge of the bag body. The radio frequency device including a wireless integrated circuit chip is for radio-frequency signal transmission or receiving, and is disposed across a portion of the first slot and coupled to two connection ends of the bag body so that the bag body between the two connection ends serves as an inductance circuit. The inductance circuit of the two connection ends of the bag body is based on metallic material. An impedance of the inductance circuit is for conjugate matching with that of the radio frequency device and is determined according to a plurality of geometric parameters including: a distance from the edge to the wireless integrated circuit chip, and size of the first slot.

Abstract: A radio frequency (RF) identification tag including a substrate, a planar antenna, an RF chip, a plurality of signal conductors and a plurality of ground conductors is provided. The RF chip receives an RF signal from the planar antenna to generate an identification code. The signal conductors are coupled to the planar antenna. The ground conductors, interlaced on two opposite sides of the signal conductors, and the signal conductors are adjacent to each other and disposed on the substrate to form a coplanar waveguide structure which includes an impedance match portion and a transmission portion. The impedance match portion has an input end coupled to the signal conductors and a ground plane coupled to the ground conductors. The RF chip is disposed between the input end and the ground plane. The transmission portion is connected between the impedance match portion and the planar antenna.

Abstract: A bottled structure includes a bottle, a liquid substance and an electrical tag. The bottle has a body. The body has a bottle opening. The liquid substance is contained in the body and has a dielectric constant. The electrical tag is disposed on the body. The electrical tag has a radiator, wherein the radiation power of the radiator is stronger on the top or the bottom of the bottle opening than that on a plane perpendicular to the body according to the dielectric constant of the liquid substance.

Abstract: A radio frequency identification (RFID) tag including a substrate, an RFID chip, a chip contact part, a folding circuit and a radiation part is provided. The chip contact part is formed on the substrate and electrically coupled to the RFID chip. The folding circuit is formed on the substrate and electrically coupled to the chip contact part. The folding circuit has a winding part, which forms a hollow region, for compensating the antenna electric length. The radiation part is formed on the substrate and electrically coupled to the folding circuit, wherein one terminal of the winding part of the folding circuit is open, and the other terminal is electrically coupled to the radiation part. At least one of the folding circuit and the radiation part is asymmetric to the chip contact part.

Abstract: A wireless communication apparatus in one embodiment includes a bag body and a radio frequency device. The bag body has at least a first slot, which extends to an edge of the bag body. The radio frequency device including a wireless integrated circuit chip is for radio-frequency signal transmission or receiving, and is disposed across a portion of the first slot and coupled to two connection ends of the bag body so that the bag body between the two connection ends serves as an inductance circuit. The inductance circuit of the two connection ends of the bag body is based on metallic material. An impedance of the inductance circuit is for conjugate matching with that of the radio frequency device and is determined according to a plurality of geometric parameters including: a distance from the edge to the wireless integrated circuit chip, and size of the first slot.

Abstract: A radio frequency identification (RFID) tag including a substrate, an RFID chip, a chip contact part, a folding circuit and a radiation part is provided. The chip contact part is formed on the substrate and electrically coupled to the RFID chip. The folding circuit is formed on the substrate and electrically coupled to the chip contact part. The folding circuit has a winding part, which forms a hollow region, for compensating the antenna electric length. The radiation part is formed on the substrate and electrically coupled to the folding circuit, wherein one terminal of the winding part of the folding circuit is open, and the other terminal is electrically coupled to the radiation part. At least one of the folding circuit and the radiation part is asymmetric to the chip contact part.

Abstract: An anti-metal radio frequency identification (RFID) tag and a manufacturing method thereof are described. The anti-metal RFID tag includes a substrate having a first surface and a second surface on an opposite side thereof; a planar integral antenna formed on the first surface of the substrate; a RFID transceiver chip (i.e., RFID chip) disposed on the surface of the substrate and coupled to a signal feed point of the planar integral antenna. The flexible planar integral antenna and substrate are folded and then fixed by a fixing mechanism to form an anti-metal RFID tag with a feed-in structure, a RFID transceiver chip, and a radiator on one side, and a ground plane on the opposite side. A spacer is further sandwiched in the center of the folded structure, which is helpful for improving the antenna gain of the anti-metal RFID tag.