Patent ID: 6657513
Filing Date: 2003-12-02
Classification: H01P

Abstract:
A nonreciprocal circuit device comprising:a ferrite member; a central conductor having an input port, an output port, and a terminating port wherein said input port, said output port, said terminating port cross on said ferrite member; a permanent magnet applying a static magnetic field to said ferrite member and said central conductor; an input terminal and an output terminal for inputting and outputting a signal; and a ground terminal for functioning as the ground of the device; wherein said nonreciprocal circuit device further comprises: a parallel capacitor connected between said output port and said ground terminal; a parallel capacitor connected between said terminating port and said ground terminal; a series capacitor sandwiched directly between said input port and said input terminal; and a parallel capacitor sandwiched directly between said input terminal and said ground terminal; and said parallel capacitor sandwiched directly between said input terminal and said ground terminal and said series capacitor sandwiched directly between said input port and said input terminal are stacked vertically.