Patent ID: 9172125
Filing Date: 2015-10-27
Classification: H01F,H01P

Abstract:
1. A non-reciprocal circuit element comprising: a first center conductor; a second center conductor; a third center conductor; a microwave magnetic body; and a permanent magnet; wherein the first, second and third center conductors are disposed, in an insulated state and intersecting with one another, around the microwave magnetic body to which a direct current magnetic field is applied by the permanent magnet; one end of the first center conductor defines a first port, one end of the second center conductor defines a second port, and one 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; a first capacitance element is connected to the first center conductor in parallel, and a second capacitance element is connected to the second center conductor in parallel; other ends of the first center conductor, the second center conductor, and the third center conductor are connected to one another, and are grounded via a first inductance element and a third capacitance element that are connected in series; a fifth capacitance element is connected to the third center conductor in parallel; a fourth capacitance element is connected in series to a connection point between the one end of the third center electrode and the fifth capacitance element, a third inductance element is further connected in series, and another end of the third inductance element is connected to the third terminal; and a sixth capacitance element is connected to the connection point between the one end of the third center conductor and the fifth capacitance element, and another end of the sixth capacitance element is grounded.