Patent ID: 9620838
Date: 2017-04-11
CPC Classifications: H01P

Claim:
1. A non-reciprocal circuit device, comprising: a ferrite; a first center conductor, a second center conductor, and a third center conductor disposed on the ferrite, to which a direct current magnetic field is applied by a permanent magnet, so as to be insulated from one another and so as to intersect with one another; a first end of the first center conductor defines a first port, a first end of the second center conductor defines a second port, and a first end of the third center conductor defines a third port; the first port is connected to a first terminal, the second port is connected to a second terminal, and the third port is connected to a third terminal; second ends of the first center conductor, the second center conductor, and the third center conductor are connected to one another, and connected to a ground; and a capacitance element is connected in parallel to each of the first center conductor, the second center conductor, and the third center conductor; wherein the non-reciprocal circuit device is a lumped constant non-reciprocal circuit device; and an internal magnetic field and a saturation magnetization of the non-reciprocal circuit device satisfy the following expression: γ: gyromagnetic ratio μ0: space permeability Hin: internal magnetic field Ms: saturation magnetization ω: angular frequency.