US 2012/0056690 A1 · MAGNETIC RESONANCE TYPE ISOLATOR

Abstract

A magnetic resonance type isolator includes a ferrite; a connection conductor that is arranged on the ferrite and includes a first port, a second port and a third port; a permanent magnet that applies a direct current magnetic field to the ferrite; an inductor that defines a reactance element; and capacitors that define an impedance matching circuit. A main line arranged between the first port and the second port of the connection conductor does not resonate, an end portion of a sub-line that branches from the main line serves as the third port, and a wave reflected from the sub-line is modulated so that its phase is shifted by 90° or about 90° at an intersection of the connection conductor. The inductor is connected to the third port and the capacitors are connected to the first and second ports, respectively.

Claims8

Dependent claims

A magnetic resonance type isolator comprising:

a ferrite;
a connection conductor that is arranged on the ferrite and includes a first port, a second port and a third port;
and
a permanent magnet that applies a direct current magnetic field to the ferrite;
wherein
a main line arranged between the first port and the second port of the connection conductor does not resonate, an end portion of a sub-line that branches from the main line serves as the third port, a reactance element is connected to the third port and the reactance element is connected to the ground;
and
an impedance matching circuit is connected to the first port and the second port.

5 more elements

Dependencies are inferred from the claim text.

Magnetic resonance type isolator

Life of this patent

Magnetic resonance type isolator

Life of this patent

Abstract

Claims8