Patent ID: 8564383

Claim:
A signal converter, comprising: a dielectric substrate; a first conductor layer disposed on one of opposite sides of the dielectric substrate, the first conductor layer including an input section, the input section configured to receive high-frequency signals inputted thereto; a second conductor layer disposed on the other of the opposite sides of the dielectric substrate; a plurality of first conducting sections penetrating the dielectric substrate for electrically connecting the first conductor layer and the second conductor layer, the first conducting sections forming a waveguide in the inside of the dielectric substrate together with the first conductor layer and the second conductor layer, wherein the first conductor layer is disposed on the dielectric substrate without occupying a separator section disposed on the dielectric substrate, the separator section including first and second sections extended from the input section towards the waveguide, the first and second sections separated from each other for gradually increasing an interval between the first and second sections in proportion to a distance away from the input section towards the waveguide.