Masashi Hotta
University of California, Los Angeles
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Publication
Featured researches published by Masashi Hotta.
international microwave symposium | 1998
Masashi Hotta; Yongxi Qian; Tatsuo Itoh
Resonant coupling type microstrip line interconnects using a bonding ribbon and dielectric pad have been designed and fabricated. The basic concept of this interconnect is the LC serial resonance of the pad capacitor and ribbon inductor. Both numerical simulation and experiment reveal low return loss and high efficiency connection at the predicted resonant frequency region, which can be readily shifted to higher frequencies by tuning the structural parameters. Furthermore, improvement in bandwidth of the interconnect is demonstrated by using a pad with higher dielectric constant.
Ieej Transactions on Sensors and Micromachines | 2007
Masakatsu Fujimoto; Wataru Tanaka; Hideo Mae; Kazumasa Yoshimura; Masashi Hotta; Mayumi Matsunaga; Kazuo Ono
We have proposed the new multi-functional sensor by using optical branching circuit with loop waveguide. The optical branching circuit consisted of cylindrical and planar slab waveguides fabricated by the ion-exchange process in Pyrex glasses. We discuss the feasibility of the optical branching circuit with loop waveguide from the several essential aspects experimentally such as ion-exchange time, coupling length of branch and refractive index of matching liquid. These experimental results demonstrate that the multi-functional sensor by using the optical branching circuit with loop waveguide has compactness and good sensitivity as compared with the conventional sensors by slab waveguides.
IEICE Transactions on Electronics | 1994
Masashi Hotta; Masahiro Geshiro
IEICE Transactions on Electronics | 1999
Masashi Hotta; Yongxi Qian; Tatsuo Itoh
IEICE Transactions on Electronics | 2001
Maria Mirianashvili; Kazuo Ono; Masashi Hotta
電子情報通信学会総合大会講演論文集 | 1998
Mirianashvili Maria; Kazuo Ono; Yasufumi Tahara; Masashi Hotta
愛媛大学工学部紀要 | 1998
Kazuo Ono; Isao Nagano; Masashi Hotta
愛媛大学工学部紀要 | 1997
Maria Mirianashvili; Kazuo Ono; Masashi Hotta
電子情報通信学会ソサイエティ大会講演論文集 | 1996
Maria Mirianashvili; Kazuo Ono; Masashi Hotta
愛媛大学工学部紀要 | 1995
Masashi Hotta; Masahiro Geshiro