Masataka Ohira

J-GLOBAL         Last updated: Sep 17, 2019 at 14:45
 
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Name
Masataka Ohira
Affiliation
Saitama University
Section
Graduate School of Science and Engineering
Job title
Associate Professor
Degree
Dr. of Eng.(Doshisha University)

Research Areas

 
 

Academic & Professional Experience

 
Apr 2014
 - 
Today
Associate Professor, Saitama University
 
Jul 2011
 - 
Mar 2013
Visiting Researcher, ATR
 
Jun 2010
 - 
Mar 2011
Visiting Researcher, ATR Wave Engineering Laboratories
 
Apr 2010
 - 
Mar 2014
Assistant Professor, Saitama University
 
Apr 2006
 - 
Mar 2010
Researcher, ATR Wave Engineering Laboratories
 

Education

 
Apr 2003
 - 
Mar 2006
Graduate School of Engineering, Dr., Doshisha University
 
Apr 2001
 - 
Mar 2003
Graduate School of Engineering, Doshisha University
 
Apr 1997
 - 
Mar 2001
Department of Electronics, Faculty of Engineering, Doshisha University
 

Awards & Honors

 
Jun 2018
Best Paper Award, IEICE
Winner: R. Hamano, Z. Ma, and M. Ohira
 
Dec 2014
IEEE MTT-S Japan Young Engineer Award
 
Dec 2014
Michiyuki Uenohara Memorial Award
 
Dec 2012
IEEE AP-S Japan Chapter Young Engineer Award
 
Apr 2011
Microwave Prize, CJMW2011 (China-Japan Microwave Conference)
 

Published Papers

 
X. Wang, Z. Ma, T. Xie, M. Ohira, C.-P, Chen, and G. Lu
IEEE Trans. on Microwave Theory and Tech.   67(8) 3377-3390   Aug 2019   [Refereed]
A synthesis theory of ultra-wideband (UWB) bandpass (BP) transformer with short-circuited stubs is proposed in this paper. Based on the short-circuited stub number and their positions, six combination topologies are presented when the transmission...
A fully reconfigurable microstrip transversal resonator array bandpass filter,
M. Ohira, S. Hashimoto, and Z. Ma
Proc. of 2019 Thailand-Japan MicroWave (TJMW2019)      Jun 2019
This paper proposes a new fully reconfigurable microstrip transversal resonator array filter that can reconfigure center frequency, bandwidth, and frequency selectivity. In conventional reconfigurable planar filters, the frequency selectivity dete...
Design of compact wideband bandstop filters using microstrip ring structures
T. Tabei, Z. Ma, and M. Ohira
Proc. of 2019 Thailand-Japan MicroWave (TJMW2019)      Jun 2019
A novel compact wideband bandstop filter (BSF) is proposed by using microstrip ring structure with stepped impedance lines. The equivalent circuit of the BSF is analyzed, and its transmission and reflection characteristics are obtained. With appro...
Compact multi-band differential bandpass filters using microstrip multi-moderesonators
B. Ren, Z. Ma, H. Liu, X. Guan, P. Wen, and M. Ohira
Proc. of IEEE MTT-S Int. Wireless Symp.      May 2019   [Refereed]
P. Wen, Z. Ma, H. Liu, S.Zhu, B. Ren, X. Guan, and M. Ohira
IEICE Electronics Express   16(7) 1-5   Mar 2019   [Refereed]
In this paper, a compact dual-band bandpass (DB-BPF) with multiple transmission zeros and wide stopband is developed. The DB-BPF consists of a pair of open-ended stub-loaded short-circuited stepped-impedance resonators with easy control of their t...

Misc

 
桂馬 康輔, 馬 哲旺, 大平 昌敬
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   118(403) 85-90   Jan 2019
山下 青, 大平 昌敬, 馬 哲旺
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   118(506) 121-126   Mar 2019
橋本 周磨, 大平 昌敬, 馬 哲旺
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   118(403) 91-96   Jan 2019
山下 青, 大平 昌敬, 馬 哲旺
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   118(507) 121-126   Mar 2019
相馬 朝康, 大平 昌敬, 馬 哲旺
電子情報通信学会技術研究報告 = IEICE technical report : 信学技報   118(403) 97-102   Jan 2019

Conference Activities & Talks

 
Masataka Ohira
Global Symposium on Millimeter Waves (GSMM) 2019   24 May 2019   
A neural-network (NN) based microwave passive/active circuit design is one of promising approaches for automation of complicated and time-consuming design tasks. In bandpass filter designs, for example, a main difficulty is a tuning process that r...
Microwave planar bandpass filter design for student design competition
M. Ohira
Tutorial Session of 2016 Thailand-Japan MicroWave (TJMW2016)   11 Jun 2016   
Masataka Ohira
Microwave Workshops & Exhibition (MWE 2015)   25 Nov 2015   
Masataka Ohira
2014 Asia-Pacific Microwave Conference (APMC 2014)   4 Nov 2014   IEICE
Fundamentals of Microwave Filters: Synthesis Theory and Design Techniques [Invited]
H. Kayano and M. Ohira
TJMW 2013 Tutorial Session   2 Dec 2013   

Patents

 
Noriaki Kuwahara, Tsutomu Miyasato, Noriaki MITSUNAGA, Rieko Kadobayashi, Masataka Ohira
echnologies are generally described for identification of recorded image data. In various examples, a mobile device may include a receiver, a memory and a processor. The receiver may be configured to receive a signal transmission from a surveillan...
Rieko Kadobayashi, Tsutomu Miyasato, Noriaki Kuwahara, Masataka Ohira, Noriaki Mitsunaga
Technologies are generally described for an automated external defibrillator (AED) dispatch system. In various examples, the AED dispatch system may include a receiver, a vehicle determination unit, and a transmitter. The receiver may be configure...
大平 昌敬, 馬場 隆行, 太郎丸 眞, 岡田 広毅, 岸 孝彦, 中尾 文章, 中野 万作
大平 昌敬, 馬場 隆行, 太郎丸 眞, 岡田 広毅, 岸 孝彦, 中尾 文章, 中野 万作
大平 昌敬, 馬場 隆行, 北沢 祥一, 伴 弘司, 上羽 正純