Yasuhide Murakami
Hitachi
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Featured researches published by Yasuhide Murakami.
internaltional ultrasonics symposium | 1989
Kohei Ito; Yasuhide Murakami; Shigeru Takeda; Yasuaki Kinoshita; S. Kubota; M. Tanaka
A 5-GHz-band voltage-controlled oscillator has been developed using a planar MSW (magnetostatic wave) resonator. The magnetic circuit has been designed using a finite element method and an NdFeB magnet, which well compensates the temperature dependence of the MS forward volume wave. The impedance matching of planar MSW resonators to a negative-resistance circuit is discussed. The developed MSW-voltage-controlled oscillators satisfy the requirements of a portable TV link. The output frequency can be linearly tuned over a 1-GHz span and the phase noise is better than -115 dBc/Hz at 100 kHz off-carrier through the tunable range. some practical points such as size, power consumption, and stability under temperature variation and mechanical vibration are also considered.<<ETX>>
Archive | 1993
Yasuhide Murakami; Shigeru Takeda; 茂 武田; 安英 邑上
Archive | 1991
Yasuhide Murakami; Kohei Ito
Archive | 1992
Yasuhide Murakami; Kohei Ito
Archive | 1991
Yasuhide Murakami; Kohei Ito
Archive | 1990
Kohei Ito; Shigeru Takeda; Yasuhide Murakami; Yasuaki Kinoshita
Archive | 1992
Yasuhide Murakami; Kohei Ito
Archive | 1990
Kohei Ito; Shigeru Takeda; Yasuhide Murakami; Yasuaki Kinoshita
Archive | 1990
Kohei Ito; Shigeru Takeda; Yasuhide Murakami; Yasuaki Kinoshita
Archive | 1990
Kohei Ito; Shigeru Takeda; Yasuhide Murakami; Yasuaki Kinoshita
