Patent ID: 6822527
Filing Date: 2004-11-23
Classification: H01P

Abstract:
An isolator comprising a magnetic core of a plate shape placed within a direct current magnetic field and having an upper face perpendicular to a direction of said direct current magnetic field, and first, second, and third central conductors placed so as to be overlapped with each other at an equal angle interval approximately in a central portion of the upper face of said magnetic core, and respectively having one end connected to ground, wherein another end of said first central conductor is set to an input terminal, another end of said second central conductor is set to an output terminal, at least said third central conductor is constructed by two parallel band-shaped conductors, one end of one band-shaped conductor is connected to the ground by a first resistor and a first capacitor, one end of the other band-shaped conductor is connected to the ground by a second resistor and a second capacitor, and a capacity value of said first capacitor and a capacity value of said second capacitor are set to be different from each other.