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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 92  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW 2020-11-19
Online Online A Filter-Technique Assisted Design of 60-GHz Band Planar Antenna with Radiation of Three Orthogonal Components
Masataka Ohira, Zhewang Ma (Saitama Univ.)
EMT, MW, OPE, EST, MWP, THz, IEE-EMT [detail] 2020-07-17
Online Video Conf. Design of Box-type Coupling Microstrip Bandpass Filter Using Even/odd-symmetric Electric Field Distributions of Half-wavelength Resonator
Miho Ono, Masataka Ohira, Zhewang Ma (Saitama Univ.) EMT2020-25 MW2020-34 OPE2020-20 EST2020-25 MWP2020-25
 [more] EMT2020-25 MW2020-34 OPE2020-20 EST2020-25 MWP2020-25
MW 2020-03-05
Kochi Kochi City Culture-Plaza CUL=PORT A Wideband Filtering Wilkinson Power Divider with Transmission Zeros
Daishi Nagata, Zwang Ma, Masataka Ohira (Saitama Univ.) MW2019-145
In this paper, a wideband filtering Wilkinson power divider (WPD) using short-circuited stubs is proposed, and design fo... [more] MW2019-145
MW 2020-03-05
Kochi Kochi City Culture-Plaza CUL=PORT Wideband general chebyshev bandstop filters using signal interference technique
Toshiki Tabei, Zhewang Ma, Masataka Ohira (Saitama Univ.) MW2019-146
A novel signal interference bandstop filter (SIBSF) that can generate arbitrary number of transmission and reflection ze... [more] MW2019-146
MW 2020-03-05
Kochi Kochi City Culture-Plaza CUL=PORT Performance improvement of wideband BPF using short-circuit stub due to signal interference
Daisuke Yamada (Saitama Univ), Zhewang Ma (Saitama univ), Masataka Ohira (Saitama Univ) MW2019-147
 [more] MW2019-147
MW 2020-03-05
Kochi Kochi City Culture-Plaza CUL=PORT Wideband Broad-Band Bandpass Filters Using Transmission Line Shorted-Stubs and Coupled-Stubs
Naruaki Maruyama, Zhewang Ma, Masataka Ohira (Saitama Univ.) MW2019-148
The conventional wideband bandpass filter (BPFs) using short-circuited stubs is relatively simple in structure and easy ... [more] MW2019-148
Tokyo Tokyo Institute of Technology [Invited Lecture] Design of Microwave Bandpass Filters Using Neural Network
Masataka Ohira (Saitama Univ.) SR2019-122
Many of engineers engaged in the wireless communications field may have a vague understanding that the design method of ... [more] SR2019-122
MW 2019-11-15
Okinawa Minami Daido Villa. Tamokuteki Koryu Center Design of Wideband Microstrip Filtering Antenna with Transmission Zeros
Ilsub Song, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2019-112
In this paper, we propose and design a new structure of microstrip filtering antenna having both a wideband and flat in-... [more] MW2019-112
MW 2019-11-15
Okinawa Minami Daido Villa. Tamokuteki Koryu Center On the Relationship between Direct Source/Load Coupling and Higher-order Resonances in Microwave Bandpass Filter
Masataka Ohira, Ryo Mikase, Zhewang Ma (Saitama Univ.) MW2019-113
It is well known that a direct source/load coupling contributes to the generation of transmission zeros at stopbands in ... [more] MW2019-113
Kanagawa JAXA (Sagamihara) Design and Experimental Evaluation of Wideband Microstrip Filtenna Based on Wideband Transmission Line Bandpass Filter
Masataka Ohira, Yusuke Suzuki, Zhewang Ma (Saitama Univ.) MW2019-58
In recent years, a filtering antenna or filtenna is becoming one of the attractive circuits that can be designed with a ... [more] MW2019-58
- 2019-06-28
Overseas RUS, Bangkok, Thailand Design of Compact Wideband Bandstop Filters Using Microstrip Ring Structures
Toshiki Tabei, Zhewang Ma, Masataka Ohira (Saitama Univ.)
A novel compact wideband bandstop filter (BSF) is proposed by using microstrip ring structure with stepped impedance lin... [more]
MW, ICD 2019-03-15
Okinawa   An Automated Design Method of Microstrip BPF with Transmission Zeros Using Both Forward and Inverse Models of Neural Network
Ao Yamashita, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2018-178 ICD2018-122
A forward model of neural-network (NN) using poles and residues in rational function of S parameters has already been pr... [more] MW2018-178 ICD2018-122
MW, ED 2019-01-18
Tokyo Hitachi, Central Research Lab. Design of Wideband Bandpass Filters with Quasi-Elliptic Characteristics Using Coupled Short-Circuited Stub
Kosuke Keima, Zhewang Ma, Masataka Ohira (Saitama Univ.) ED2018-85 MW2018-152
In this paper, based on the analysis of the transmission line equivalent circuits of the wideband bandpass filters (BPFs... [more] ED2018-85 MW2018-152
MW, ED 2019-01-18
Tokyo Hitachi, Central Research Lab. Design and Fabrication of Microstrip Reconfigurable Bandpass Filter Using Transversal Resonator Array
Shuma Hashimoto, Masataka Ohira, Zhewang Ma (Saitama Univ.) ED2018-86 MW2018-153
 [more] ED2018-86 MW2018-153
MW, ED 2019-01-18
Tokyo Hitachi, Central Research Lab. Design of Microstrip Tunable Filtering Antenna with Constant Absolute Bandwidth
Tomoyasu Soma, Masataka Ohira, Zhewang Ma (Saitama Univ.) ED2018-87 MW2018-154
A tunable antenna that can change its resonant frequency electronically is one of promising components for future wirele... [more] ED2018-87 MW2018-154
MW, ED 2019-01-18
Tokyo Hitachi, Central Research Lab. Design of Quasi-Millimeter-Wave SIW Bandpass Filter with Transmission Zeros Using TE102 Mode for Negative Coupling
Yuta Shimizu, Masataka Ohira, Zhewang Ma (Saitama Univ) ED2018-88 MW2018-155
A quasi-millimeter-wave band substrate integrated waveguide (SIW) bandpass filter with a fractional bandwidth greater th... [more] ED2018-88 MW2018-155
MW 2018-12-13
Kanagawa Kanagawa Univ. A High-order Cul-de-Sac Coupling Bandpass Filter Design Using Even/Odd-mode Stepped Impedance Resonators
Ryo Mikase, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2018-115
In the design of bandpass filters (BPFs), transmission zeros (TZs) can be generated at arbitrary frequency positions by ... [more] MW2018-115
MW 2018-12-13
Kanagawa Kanagawa Univ. Design of Wideband Bandstop Filters Using Open-Circuited Stubs
Tianyu You, An Song, Zhewang Ma, Masataka Ohira (Saitama Univ.) MW2018-117
In this paper, an exact design method of wideband bandstop filters using open-circuited stubs is proposed. First, the va... [more] MW2018-117
MW 2018-12-13
Kanagawa Kanagawa Univ. Design of Microstrip Dual-band Wilkinson Power Dividers with Large Center Frequency Ratios
An Song, Zhewang Ma (Saitama Univ.), Xiaolong Wang (Jilin Univ.), Masataka Ohira (Saitama Univ.) MW2018-121
In this paper, the design theory of a dual-band Wilkinson power divider (DBWPD) consisting of two-sections of transmissi... [more] MW2018-121
MW 2018-11-16
Nagasaki Fukue Cultural Hall [Special Talk] Report on 2018 IEEE MTT-S International Microwave Symposium
Takashi Shimizu (Utsunomiya Univ.), Ryo Ishikawa (UEC), Tetsuya Ueda (Kyoto Inst. of Tech.), Masataka Ohira (Saitama Univ.), Hiroshi Okazaki (NTT DOCOMO), Yuji Komatsuzaki (Mitsubishi Electric Corp.), Tamura Masaya (TUT) MW2018-110
 [more] MW2018-110
 Results 1 - 20 of 92  /  [Next]  
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