H - Electricity – 03 – B
Patent
H - Electricity
03
B
331/32
H03B 5/18 (2006.01) H03B 1/00 (2006.01) H03B 5/04 (2006.01) H03D 7/16 (2006.01)
Patent
CA 1313693
ABSTRACT OF THE DISCLOSURE A tuned oscillator utilizing a thin film ferromagnetic resonator is disclosed. The oscillator comprises an active element for oscillator and a YIG thin film resonator connected to the active element as a part of feed-back circuit for the active element. The YIG thin film resonator is applied with a bias magnetic field perpendicular to a surface of a YIG disk which is generated by a permanent magnet for a fixed component and a coil for a variable component for the resonance frequency. The resonance frequency is stabilized by use of a PLL circuit connected to an output of the oscillator and feeding back to the coil. Since the YIG thin film tuned oscillator has a high Q value, high quality communication signal processing can be achieved. The YIG tuned oscillator is used as local oscillator for a transciever.
584141
Mizunuma Yasuyuki
Murakami Yoshikazu
Nakano Hiroyuki
Niikura Kanako
Ohgihara Takahiro
Gowling Lafleur Henderson Llp
Mizunuma Yasuyuki
Murakami Yoshikazu
Nakano Hiroyuki
Niikura Kanako
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