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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2021-12-17 10:20 |
Kanagawa | Kawasaki City Industrial Promotion Hall (Kanagawa, Online) (Primary: On-site, Secondary: Online) |
A Novel Design of Wideband Impedance Transformers Weihao Zhang, Zhewang Ma, Fan Liu, Masataka Ohira (Saitama Univ.), Xiaolong Wang (JLU)  MW2021-97 |
[more] | MW2021-97 pp.73-78 |
| MW | 2018-12-13 14:20 |
Kanagawa | Kanagawa Univ. (Kanagawa) | 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 pp.43-48 |
| MW, WPT | 2018-04-27 14:25 |
Tokyo | Kikai-Shinko-Kaikan Building (Tokyo) | Design of Microstrip Symmetric-Coupling Quadruplet Bandpass Filters with Transmission Zeros for Symmetric and Asymmetric Frequency Responses Ryo Mikase, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) WPT2018-4 MW2018-4 |
Bandpass filters (BPFs) composed of four resonators as a basic component, like CQ filters, have been proposed so far. In... [more] | WPT2018-4 MW2018-4 pp.13-18 |
| ED, MW | 2018-01-26 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | Design of fully-canonical Cul-de-Sac coupling microstrip bandstop filter Makoto Kanomata, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) ED2017-101 MW2017-170 |
In the design of bandstop filter (BSF), a circuit synthesis theory of generalized Chebyshev function offers an equirippl... [more] | ED2017-101 MW2017-170 pp.41-46 |
| MW | 2017-12-19 15:15 |
Tokyo | (Tokyo) | Design of Wideband Microstrip Filtering Antenna Using Short Stub Structure Kazuhiro Sato, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) MW2017-150 |
In recent years, a filtering antenna has been rapidly developed because it can be designed with a well-known filter synt... [more] | MW2017-150 pp.47-52 |
| AP, MW (Joint) |
2017-09-22 16:15 |
Saitama | Saitama University (Saitama) | Automatic Design of Microstrip Bandpass Filters Using Neural Networks of Forward and Inverse Models Based on Eigenmodes Ao Yamashita, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) MW2017-80 |
In this paper, we propose a new high-speed automatic design method of microwave bandpass filter (BPF) using neural netwo... [more] | MW2017-80 pp.69-74 |
| AP, MW (Joint) |
2017-09-22 16:40 |
Saitama | Saitama University (Saitama) | Design and Fabrication of Fourth-order Tunable Bandpass Filter with Absolute Bandwidth and Transmission Zeros Shuma Hashimoto, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) MW2017-81 |
[more] | MW2017-81 pp.75-80 |
| WPT, MW | 2017-04-28 15:50 |
Tokyo | Kikai-Shinko Kaikan, B2-1 (Tokyo) | Design and Experiment of Fully Canonical Cul-de-Sac Coupling Microstrip BPF with Controllable Direct Source/Load Coupling Toshiki Kato, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) WPT2017-6 MW2017-6 |
We have proposed a fully canonical Cul-de-Sac coupling microstrip bandpass filter that can realize a generalized Chebysh... [more] | WPT2017-6 MW2017-6 pp.23-28 |
| MW, ED | 2017-01-27 10:30 |
Tokyo | Kikai-Shinko-Kaikan Bldg. (Tokyo) | Design of Filtering Antenna with Transmission Zeros Using Cross Coupling Between Antenna and Resonator Toshiki Miyazaki, Masataka Ohira, Zhewag Ma, Xiaolong Wang (Saitama Univ.) ED2016-104 MW2016-180 |
The generation of transmission zeros (TZs) at stopbands is indispensable for filtering antennas to obtain a sharp passba... [more] | ED2016-104 MW2016-180 pp.41-46 |
| MW | 2016-12-16 10:00 |
Kanagawa | National Defense Academy (Kanagawa) | Improved Extraction Method for Coupling-Matrix of Microstrip Bandpass Filters with Lossy Input/Output Lines Ryo Tomita, Masataka Ohira, Zhewang Ma, Xiaolong Wang (Saitama Univ.) MW2016-157 |
A coupling matrix extraction technique is very useful for designs and tunings of microwave bandpass filters. In recent y... [more] | MW2016-157 pp.141-146 |
| MW | 2014-03-04 15:40 |
Ehime | Ehime University (Ehime) | [Special Talk]
Generalized, Dual-band Wilkinson Power Divider With Parallel L, C and R Components Xiaolong Wang (Univ. of Tsukuba), Iwata Sakagami (Univ. of Toyama) MW2013-206 |
A generalized model of a two-way dual-band Wilkinson power divider with a parallel LC circuit at mid-points of two-segme... [more] | MW2013-206 pp.53-58 |
| MW | 2011-10-20 14:55 |
Tokyo | The University of Electro-Communications (Tokyo) | A Dual-Band Horst Type Wilkinson Power Divider Using Composite Right/Left-Handed Transmission Lines Shingo Okamura, Iwata Sakagami, Kensaku Takahashi, Xiaolong Wang, Minoru Tahara (Univ. of Toyama) MW2011-95 |
A Horst type Wilkinson power divider has additional transmission lines between an absorption resistor and quarter-wave l... [more] | MW2011-95 pp.51-56 |
| MW | 2011-10-21 09:25 |
Tokyo | The University of Electro-Communications (Tokyo) | A Capacitance Compensated Two-Stage Series PIN Diode SPDT High Frequency Switch Kensaku Takahashi, Iwata Sakagami, Shingo Okamura, Xiaolong Wang, Minoru Tahara (Univ. of Toyama) MW2011-101 |
High-frequency switches can be used in wireless communication equipments where low insertion loss and high isolation are... [more] | MW2011-101 pp.83-88 |
| EMCJ, MW, IEE-MAG | 2009-10-22 15:20 |
Iwate | Iwate Univ. (Iwate) | Transmission-line dual-band transformers using open/short circuited stubs Xiaolong Wang, Iwata Sakagami, Kensaku Takahashi, Shingo Okamura, Minoru Tahara (Univ. of Toyama) EMCJ2009-51 MW2009-100 |
Two types of transmission line dual-band transformers are derived adding open/short stubs in different places of the two... [more] | EMCJ2009-51 MW2009-100 pp.41-46 |
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