Abstract: The present invention may provide a plug for an RF coaxial cable, to which the RF coaxial cable is coupled, comprising: a first body in which the RF coaxial cable is inserted; a first conductor disposed in the first body; a coupling nut which is arranged on the outside of the first body and rotatably coupled to the first body; and a first magnet of an annular shape which is fixed in the coupling nut and rotated along with the coupling nut, wherein the first magnet has a first pole and a second pole having different polarities which are alternately arranged in the circumferential direction.

Abstract: There is provided a printed circuit board (PCB) comprising a first ground layer extended in one direction; a first dielectric layer laminated on the first ground layer and extended in the same direction of the first ground layer; a signal transmission line laminated on the first dielectric layer and extended in the same direction of the first dielectric layer; a first bonding sheet disposed above the first dielectric layer; a second bonding sheet disposed above the first dielectric layer, a second dielectric layer disposed above the signal transmission line, the first bonding sheet, and the second bonding sheet; and a second ground layer laminated on the second dielectric layer.

Abstract: A board mount type right angle coaxial connector has a cylindrical body and a main body containing a dielectric and an air dielectric, respectively. The bodies are connected to each other at a right angle. The coaxial connector further has a conductor surrounded with the dielectric and the air dielectric. The conductor has also a right-angle structure and is protruded from a front side of the main body. An inner wall of the main body has a decreasing width and the conductor has a decreasing diameter. The coaxial connector may further has a fixing member for preventing pin rotation, a impedance matching ring, and ground supporters for mounting on the board.