Abstract: A radio wave control system includes a phase adjustment plate that transmits a radio wave from a second main surface to a first main surface and focuses the radio wave on a focal point; and a reflection plate installed at a position irradiated with the radio wave transmitted through the phase adjustment plate.

Abstract: A reflect array that sets a reflection angle of a radio wave to an angle that is different from an angle of specular reflection. The reflect array includes a plurality of cells arranged in an array. Each of the plurality of cells includes at least two main resonant elements and a parasitic resonant element coupled to the at least two main resonant elements. The parasitic resonant element is configured to adjust a resonant frequency of the parasitic resonant element and adjust a reflection phase of a surface of the reflect array by adjusting a resonant frequency of the at least two main resonant elements each adjacent to the parasitic resonant element, to which the parasitic resonant element is coupled.

Abstract: A distributed antenna includes a strip member extending in a strip-like shape including a dielectric body of a plate shape having a first surface that is one surface of the dielectric body and a second surface that is opposite to the first surface; a transmission line provided on the first surface, on the second surface, or between the first surface and the second surface; and a plurality of antenna elements electrically connected to the transmission line and disposed in a distributed manner on the first surface or on the second surface, or electrically connected to the transmission line and disposed in a distributed manner between the first surface and the second surface.

Abstract: There is a need to reduce the amount of overlapping parts of a nonwoven fabric of a filter component to thereby lengthen the life of the filter component. This need is met by the filter component formed of a cylindrical nonwoven fabric having a center axis, and having a plurality of polygon-shaped cross-sections which are a same shape that are formed side-by-side at predetermined intervals along the center axis. Each side of each of the polygons is formed by a mountain fold part on a plane perpendicular to the center axis, and each vertex of one polygon is connected by a mountain fold part to each vertex of another polygon, respectively.

Abstract: A structure in which no shearing force acts on each member is desired to be used at a welded part where a stress is liable to be concentrated. To solve this problem, the flange member includes a cap member, a ring member, and sheet-shaped thermoplastic resin member. At least one end of the thermoplastic resin member includes a protruding part that protrudes from an end surface of the cap member and from an end surface of the ring member. The protruding part is welded to the end surface of the cap member and to the end surface of the ring member.

Abstract: There is a need to reduce the amount of overlapping parts of a nonwoven fabric of a filter component to thereby lengthen the life of the filter component. This need is met by the filter component formed of a cylindrical nonwoven fabric having a center axis, and having a plurality of polygon-shaped cross-sections which are a same shape that are formed side-by-side at predetermined intervals along the center axis. Each side of each of the polygons is formed by a mountain fold part on a plane perpendicular to the center axis, and each vertex of one polygon is connected by a mountain fold part to each vertex of another polygon, respectively.

Abstract: A system for arranging chips in series in a tape capable of automatically and efficiently carrying out all steps from the feeding of chips to the arranging of them in series in recesses of a tape with high reliability. The system includes a chip feed section adapted to individually separate chips and automatically eliminate a chip defective in configuration while supplying chips, a first intermittently turned index table formed with chip receiving grooves for successively receiving chips one by one from the chip feed section and adapted to automatically eliminate a chip defective in electrical characteristics, and a chip transferring section for transferring chips from the first index table to a second intermittently turned index table. The second index table is formed with chip receiving grooves for successively receiving chips one by one from the chip transferring section. Chips are then taken out and arranged in recesses of an intermittently moving tape one by one by a suction pin.