Patent ID: 8174937

Claim:
A thin-film magnetic head having microwave magnetic exciting function, comprising: a write head element with a perpendicular magnetic recording structure having a main pole, an auxiliary pole and a coil means wound to pass between said main pole and said auxiliary pole, said coil means producing, in response to a write signal, a write magnetic field to be applied into a magnetic recording medium; and a microwave radiator of a plane-structure type, formed independent from said coil means, for radiating, by feeding therethrough a microwave excitation current, a microwave band resonance magnetic field with a frequency equal to or in a range near a ferromagnetic resonance frequency F R of said magnetic recording medium, said microwave radiator having a line conductor arranged between said main pole and said auxiliary pole, said microwave radiator being adapted to produce electrical flux lines toward said magnetic recording medium and to radiate the resonance magnetic field in-plane of a surface of said magnetic recording medium.