Patent ID: 9112256
Filing Date: 2015-08-18
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 second inductance element is connected to one end of the third center conductor in parallel, and another end of the second inductance element is grounded; and a fourth capacitance element is connected to a connection point between the one end of the third center electrode and the second inductance element, and another end of the fourth capacitance element is connected to the third terminal.