Abstract: A system having a Reconfigurable ReflectArray (RRA) structure includes a radiation layer and a control layer. The radiation layer includes at least one P-Intrinsic-N (P-I-N) diode and a plurality of reconfigurable reflective units. At least one part of the reconfigurable reflective units is electrically connected to the at least one P-I-N diode. The control layer includes at least one switch element and at least one control unit. The at least one switch element is electrically connected to the radiation layer. The at least one control unit is electrically connected to the at least one switch element. The number of the reconfigurable reflective units is different from the number of the at least one switch element.

Abstract: A reconfigurable intelligent surface includes a radiant layer, a sensing feeding circuit layer, a processing layer and a controlling circuit layer. The radiant layer includes at least two antennas and a plurality of reflecting units. Each of the at least two antennas is configured for sensing a polarization, a frequency or a direction angle of an incident electromagnetic wave. The reflecting units are arranged to form a reflecting surface. The sensing feeding circuit layer is signally connected to the antennas. The processing layer is signally connected to the sensing feeding circuit layer, and the processing layer is configured to produce a controlling signal corresponding thereto. The controlling circuit layer is signally connected to the radiant layer and the processing layer, wherein the controlling circuit layer receives the controlling signal and controls the reflecting units according to the controlling signal to adjust and form a reflecting electromagnetic wave.

Abstract: A Reconfigurable ReflectArray (RRA) structure includes a P-Intrinsic-N (P-I-N) diode and a metal circuit. The metal circuit includes a first metal member and a second metal member. The first metal member is coupled to one end of the P-I-N diode. The second metal member is coupled to another end of the P-I-N diode. One of the first metal member and the second metal member includes a first radiating portion and a second radiating portion. The first radiating portion is located between the P-I-N diode and the second radiating portion. The first radiating portion has a first length. The second radiating portion has a second length. The first length is different from the second length.

Abstract: Provided is an electromagnetic wave reflectarray, including a first substrate, a second substrate, first wires and second wires respectively arranged on the first substrate and the second substrate along a first direction and a second direction, antenna electrodes and tuning electrodes respectively arranged into first electrode strings and second electrode strings electrically connected to the first wires and the second wires on the first substrate and the second substrate along the first direction, and a liquid crystal layer disposed between the first substrate and the second substrate. The tuning electrodes completely cover the orthographic projections of the antenna electrodes on the second substrate.

Abstract: A memory processing system includes a processor, a main memory, and a MMU coupled to the processor and the main memory. The processor is used to generate a plurality of virtual addresses. The main memory includes a plurality of data corresponding to physical addresses in a main page table. The main page table is used to map the plurality of virtual addresses to the plurality of physical addresses. The memory management unit includes a TLB coupled to the processor and the main memory, a table walk unit coupled to the TLB and the main memory, and a merger coupled to the TLB and the processor. The TLB performs address translation by retrieving a physical address according to a virtual address from a first page table in the TLB or a second page table in the table walk unit or the main page table in the main memory.

Abstract: A measurement device and a method of measuring a radiation pattern by using the same are provided. The measurement device includes at least one positioner configured to move a first antenna for measuring a main lobe and a back lobe of an electromagnetic wave radiated from the first antenna.

Abstract: An electromagnetic wave transmission structure including a substrate, at least one transmission line, antennas, and tunable dielectric units is provided. The transmission line includes a first extending portion and second extending portions. The first extending portion is extended in a first direction. The second extending portions are respectively extended from two opposite edges of the first extending portion, and an extending direction thereof is parallel to a second direction. The second extending portions are arranged along the first direction. The antennas are disposed near the at least one transmission line. The tunable dielectric units are overlapped with portions of the at least one transmission line located between the antennas. Each tunable dielectric unit has an overlapped first electrode layer and controllable dielectric layer. The controllable dielectric layer is disposed between the first electrode layer and the at least one transmission line.

Abstract: A transaction merging method for a first electronic device and a second electronic device. The transaction merging method comprises: (a) receiving a plurality of input transactions from the first electronic device; (b) setting a merge condition of the input transactions according to a transmission condition between the first electronic device and the second electronic device; (c) merging the input transactions according to the merge condition to generate at least one transaction group; and (d) transmitting the transaction group to the second electronic device.

Abstract: A reconfigurable intelligent surface includes a radiant layer, a sensing feeding circuit layer, a processing layer and a controlling circuit layer. The radiant layer includes at least two antennas and a plurality of reflecting units. Each of the at least two antennas is configured for sensing a polarization, a frequency or a direction angle of an incident electromagnetic wave. The reflecting units are arranged to form a reflecting surface. The sensing feeding circuit layer is signally connected to the antennas. The processing layer is signally connected to the sensing feeding circuit layer, and the processing layer is configured to produce a controlling signal corresponding thereto. The controlling circuit layer is signally connected to the radiant layer and the processing layer, wherein the controlling circuit layer receives the controlling signal and controls the reflecting units according to the controlling signal to adjust and form a reflecting electromagnetic wave.

Abstract: A mask storing device comprises a storing unit, a hook member, a stopper portion, a positioning member, and a flexible stopper member for storing a mask. A method to store a mask, which functions as a safe and hygienicway to allow users to store and take out the mask safely by only holding ear loops without touching the body of the mask.

Abstract: A system for diffraction of an electromagnetic wave includes a substrate, a transmission unit, and a plurality of antennas. The substrate is made of a second medium. The transmission unit is disposed on the substrate. The transmission unit has a plurality of transmission lines. Each of the transmission lines has a transmission line length that is associated with a first medium operation wavelength that is associated with an operation frequency. The transmission lines are connected successively. The antennas are disposed on the substrate, respectively.

Abstract: An electromagnetic wave transmission structure adapted to cause convergence of an electromagnetic wave includes a substrate and a transmission unit provided on the substrate and including an annular metal plate. The annular metal plate has a weighted average inner radius and a weighted average outer radius each related to the wavelength of the electromagnetic wave, the distance between the electromagnetic wave transmission structure and a focal point defined as the point of convergence of the electromagnetic wave, and the distance between the source of the electromagnetic wave and the focal point. The plural inner and outer radii of the annular metal plate have the same trend of variation. Each inner or outer radius corresponds to a weight related to the reference included angle formed between the inner or outer radius and a reference axis.

Abstract: An electromagnetic wave transmission structure including a substrate, at least one transmission line, antennas, and tunable dielectric units is provided. The transmission line includes a first extending portion and second extending portions. The first extending portion is extended in a first direction. The second extending portions are respectively extended from two opposite edges of the first extending portion, and an extending direction thereof is parallel to a second direction. The second extending portions are arranged along the first direction. The antennas are disposed near the at least one transmission line. The tunable dielectric units are overlapped with portions of the at least one transmission line located between the antennas. Each tunable dielectric unit has an overlapped first electrode layer and controllable dielectric layer. The controllable dielectric layer is disposed between the first electrode layer and the at least one transmission line.

Abstract: Provided is an electromagnetic wave reflectarray, including a first substrate, a second substrate, first wires and second wires respectively arranged on the first substrate and the second substrate along a first direction and a second direction, antenna electrodes and tuning electrodes respectively arranged into first electrode strings and second electrode strings electrically connected to the first wires and the second wires on the first substrate and the second substrate along the first direction, and a liquid crystal layer disposed between the first substrate and the second substrate. The tuning electrodes completely cover the orthographic projections of the antenna electrodes on the second substrate.

Abstract: A method for deploying an electromagnetic wave guiding structure includes a communication dead zone analysis step and an improvement measure determination step. In the former step, a frequency band in use and an electromagnetic wave signal strength threshold value are preset, and a processing module creates an electromagnetic map for the electromagnetic wave intensity over an area in the frequency band in use based on an electronic map of the area, wherein the electromagnetic map shows a communication dead zone. In the latter step, the processing module obtains an existing electromagnetic wave path according to the electromagnetic map and infers from the existing electromagnetic wave path the installation position and type of at least one electromagnetic wave guiding structure assembly suitable for use to guide the electromagnetic wave to the communication dead zone and ensure that the coverage ratio of the electromagnetic wave in the area reaches a threshold value.

Abstract: A method for deploying an electromagnetic wave guiding structure includes a communication dead zone analysis step and an improvement measure determination step. In the former step, a frequency band in use and an electromagnetic wave signal strength threshold value are preset, and a processing module creates an electromagnetic map for the electromagnetic wave intensity over an area in the frequency band in use based on an electronic map of the area, wherein the electromagnetic map shows a communication dead zone. In the latter step, the processing module obtains an existing electromagnetic wave path according to the electromagnetic map and infers from the existing electromagnetic wave path the installation position and type of at least one electromagnetic wave guiding structure assembly suitable for use to guide the electromagnetic wave to the communication dead zone and ensure that the coverage ratio of the electromagnetic wave in the area reaches a threshold value.

Abstract: An electromagnetic wave transmission structure adapted to cause convergence of an electromagnetic wave includes a substrate and a transmission unit provided on the substrate and including an annular metal plate. The annular metal plate has a weighted average inner radius and a weighted average outer radius each related to the wavelength of the electromagnetic wave, the distance between the electromagnetic wave transmission structure and a focal point defined as the point of convergence of the electromagnetic wave, and the distance between the source of the electromagnetic wave and the focal point. The plural inner and outer radii of the annular metal plate have the same trend of variation. Each inner or outer radius corresponds to a weight related to the reference included angle formed between the inner or outer radius and a reference axis.

Abstract: A mask storing device comprises a storing unit, a hook member, a stopper portion, a positioning member, and a flexible stopper member for storing a mask. A method to store a mask, which functions as a safe and hygienicway to allow users to store and take out the mask safely by only holding ear loops without touching the body of the mask.

Abstract: A system for diffraction of an electromagnetic wave includes a substrate, a transmission unit, and a plurality of antennas. The substrate is made of a second medium. The transmission unit is disposed on the substrate. The transmission unit has a plurality of transmission lines. Each of the transmission lines has a transmission line length that is associated with a first medium operation wavelength that is associated with an operation frequency. The transmission lines are connected successively. The antennas are disposed on the substrate, respectively.

Abstract: A folding chair includes a seat, a back, an interlinking device, a front leg, and a rear leg. The seat, the back, the interlinking device, the front leg, and the rear leg are interlinked. The seat includes at least one guiding portion, and the interlinking device includes at least one actuating member, which is movably coupled to the guiding portion. A user can fold or unfold the folding chair by a single-handed operation, such as pushing or pulling on the back or pulling a handle.