Abstract: A circuit board assembly includes a first circuit board, a second circuit board having a first side extending adjacent to a first side of the first circuit board, and a metal fitting including a portion bent at the angle and spanning both the first side of the first circuit board and the first side of the second circuit board. The second circuit board is in a posture having an angle other than 180° to the first circuit board. The metal fitting is fixed to both the first circuit board and the second circuit board.

Abstract: A circuit board includes a terminal area projecting from an end face of the circuit board. The terminal area is flush with a front side and a back side of the circuit board and has a thickness equal to the circuit board. The terminal area has a plurality of sides covered with an electrically conductive material, the sides including a first surface flush with a front side of the circuit board, a second surface flush with a back side of the circuit board, and a pair of side surfaces that intersect the first surface and the second surface.

Abstract: A circuit board assembly includes a first circuit board, a second circuit board having a first side extending adjacent to a first side of the first circuit board, and a metal fitting including a portion bent at the angle and spanning both the first side of the first circuit board and the first side of the second circuit board. The second circuit board is in a posture having an angle other than 180° to the first circuit board. The metal fitting is fixed to both the first circuit board and the second circuit board.

Abstract: An electronic circuit includes a first printed wiring board, a second printed wiring board and a third printed wiring board. The second printed wiring board is mounted such that one edge of the second printed wiring board abuts on a part mounting surface of the first printed wiring board on which a part is mounted. The third printed wiring board is mounted such that one edge of the third printed wiring board abuts on the part mounting surface. The second and third printed wiring boards are connected to each other in a state where plate thickness directions thereof are oriented in different directions from each other about a normal line to the part mounting surface. Further, at least one of the second printed wiring board and the third printed wiring board is provided with an antenna pattern.

Abstract: A circuit board includes a terminal area projecting from an end face of the circuit board. The terminal area is flush with a front side and a back side of the circuit board and has a thickness equal to the circuit board. The terminal area has a plurality of sides covered with an electrically conductive material, the sides including a first surface flush with a front side of the circuit board, a second surface flush with a back side of the circuit board, and a pair of side surfaces that intersect the first surface and the second surface.

Abstract: An electronic circuit includes a first printed wiring board, a second printed wiring board and a third printed wiring board. The second printed wiring board is mounted such that one edge of the second printed wiring board abuts on a part mounting surface of the first printed wiring board on which a part is mounted. The third printed wiring board is mounted such that one edge of the third printed wiring board abuts on the part mounting surface. The second and third printed wiring boards are connected to each other in a state where plate thickness directions thereof are oriented in different directions from each other about a normal line to the part mounting surface. Further, at least one of the second printed wiring board and the third printed wiring board is provided with an antenna pattern.

Abstract: A high-frequency coupler used in communication of high frequency signals, which aims to provide a high-frequency coupler satisfying both constant communication quality and thinning. The high-frequency coupler includes a circuit board and a toroidal coil. The circuit board includes a first receiving passageway and a second receiving passageway. The toroidal coil extends through the first receiving passageway and the second receiving passageway between a first surface and a second surface of the circuit board. The toroidal coil orbits on both sides of the first surface and the second surface in a circular shape. The toroidal coil reverses an orbiting direction at a position substantially near a half of a length of the toroidal coil.