Method and apparatus for multiplying a frequency of an electromagnetic wave
AssigneeHokkaido University
InventorsHideki Watanabe, Makoto Sawamura, Kazuhisa Sueoka, Koichi Mukasa, Ryosho Nakane
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Abstract
A ferromagnetic film, which has an inherent resonant frequency, is disposed in a cavity resonator. An electromagnetic wave, which has an input frequency equal to the resonant frequency of the ferromagnetic film, is introduced to the ferromagnetic film from an orifice of the cavity resonator to generate a ferromagnetic resonance in the ferromagnetic film, and thus, multiply the input frequency of the electromagnetic wave.
Claims15
A method for multiplying a frequency, comprising the steps of:
- providing a ferromagnetic film having a resonant frequency;
- and
- providing an electromagnetic wave having an input frequency that is equal to the resonant frequency of the ferromagnetic film, thereby to generate a ferromagnetic resonance in the ferromagnetic film and thus, multiply the input frequency of the electromagnetic wave.
A method for multiplying a frequency, comprising the steps of:
- placing in a cavity resonator a ferromagnetic film having a resonant frequency, the cavity resonator having an orifice;
- providing an electromagnetic wave through the orifice of the cavity resonator and into the cavity resonator, the electromagnetic wave having an input frequency that is equal to the resonant frequency of the ferromagnetic film, thereby to generate a ferromagnetic resonance in said ferromagnetic film, and thus, multiply the input frequency of the electromagnetic wave;
- and
- removing the electromagnetic wave having the multiplied frequency out of a slit formed in the cavity resonator.
A method for multiplying a frequency, comprising the steps of:
- providing a plurality of ferromagnetic films, each having a resonant frequency and a corresponding amplitude;
- providing to one of the ferromagnetic films an electromagnetic wave having an input frequency that is equal to the resonant frequency of the one of the ferromagnetic films, thereby to multiply the input frequency through the ferromagnetic resonance of the one of the ferromagnetic films;
- and
- introducing the electromagnetic wave that has the multiplied frequency to another one of the ferromagnetic films positioned adjacent to the one of the ferromagnetic films, thereby to multiply the input frequency of the electromagnetic wave.
An apparatus for multiplying a frequency of an input electromagnetic wave, comprising:
- a cavity resonator including an orifice and a slit, the orifice positioned to introduce into the cavity resonator an input electromagnetic wave having input frequency, and the positioned slit to take the electromagnetic wave out of the cavity resonator;
- and
- a ferromagnetic film disposed in the cavity resonator.
Dependencies are inferred from the claim text.