Masataka Ohira

J-GLOBAL         Last updated: Mar 8, 2019 at 13:55
 
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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

 
P. Wen, Z. Ma, S. Zhu, B. Ren, Y. Song, X. Wang, and M. Ohira
IEEE Microwave and Wireless Comp. Lett.   29(2) 101-103   Feb 2019   [Refereed]
In this letter, a novel compact dual-band filtering power divider (DB-FPD) is proposed. It consists of a U-shaped Wilkinson power divider, two pairs of dual-resonance resonators (DRRs), and a pair of spur lines. With the simultaneous use and appro...
M. Ohira, S. Hashimoto, Z. Ma, and X. Wang
IEEE Trans. on Microwave Theory and Tech.   67(1) 118-128   Jan 2019   [Refereed]
This paper presents a systematic design procedure of microstrip higher order tunable bandpass filters (BPFs) that can realize a constant absolute frequency bandwidth (ABW) and transmission zeros (TZs) with the minimum number of varactors and a sin...
X. Wang, N. Shinoda, Z. Ma, and M. Ohira
AEU - International Journal of Electronics and Communications   98 259-264   Jan 2019   [Refereed]
A tunable transmission-line transformer (TLT) is newly introduced in this paper. It consists of two transmission lines (TLs), one parallel varactor and one series varactor. The design formulas are newly derived in closed-form, and its design proce...
X. Wang, T. Xie, G. Lu, Z. Ma, and M. Ohira
IEEE Microwave and Wireless Components Letters   28(12) 1158-1159   Dec 2018   [Refereed]
B. Ren, Z. Ma, H. Liu, X. Guan, X. Wang, P. Wen, and M. Ohira
IEEE Transactions on Microwave Theory and Techniques   67(2) 726-737   Feb 2019   [Refereed]
In this paper, a fourth-order dual-band high-temperature superconducting (HTS) differential bandpass filter (BPF) with controllable midband frequencies and bandwidths is developed by using modified multimode square ring loaded resonators (SRLRs). ...

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
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
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
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(402) 85-90   Jan 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(402) 91-96   Jan 2019

Conference Activities & Talks

 
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   
M. Ohira, H. Aoyama, and Z. Ma
Microwave Workshops & Exhibition (MWE2013)   29 Nov 2013   
This paper describes a circuit synthesis theory, a parameter-extraction method of transversal resonator array filters, and their applications to multi-mode filter designs. The equivalent circuit is expressed with parallel connection of resonators ...

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