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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP, MW (Joint) |
2018-09-21 15:00 |
Tokyo | Tokyo Tech | Discussions on Dielectric Measurement Apparatus for Balanced-Type Disk Resonator Method Yoshio Kobayashi, Sotaro Kobayashi (SUMTEC)  MW2018-67 |
Balanced-type disk resonator method is useful to measure the complex permittivity in the normal direction of dielectric ... [more] | MW2018-67 pp.45-48 |
| AP, MW (Joint) |
2017-09-21 15:25 |
Saitama | Saitama University | [Special Talk]
History of Technical Development on Microwave Dielectric Filters Yoshio Kobayashi (SUMTEC) MW2017-71 |
This paper describes a short history on technical development for evaluation techniques of low loss dielectric materials... [more] | MW2017-71 pp.17-22 |
| MW | 2016-01-15 13:50 |
Tokyo | Kikai-Shinko-Kaikan Bldg. | [Memorial Lecture]
The Institute Activity for Technical Group on Microwaves in 1993~’94 Yoshio Kobayashi (14th Chair) MW2015-168 |
[more] | MW2015-168 pp.47-48 |
| MW | 2013-12-19 16:45 |
Saitama | Saitama Univ. | Discussions on Measurement Accuracy of Complex Relative Permittivity by a Balanced-type Circular Disk Resonator Method Jun Nakatsutsumi (Saitama Univ.), Yoshio Kobayashi (SUMTEC), Zhewang Ma (Saitama Univ.) MW2013-163 |
A balanced-type circular disk resonator method is used for measuring complex permittivity in the normal direction (relat... [more] | MW2013-163 pp.71-76 |
| MW | 2013-06-28 11:45 |
Aichi | Nagoya Institute of Tech. | Precise compensation based on the electromagnetic analysis for complex permittivity perturbation method using a TM<sub>010</sub> mode cylindrical cavity Hirokazu Kawabata (TITC), Yoshio Kobayashi (Sumtec) MW2013-44 |
A perturbation method using the TM<sub>010</sub> mode of cylindrical cavity is commonly used to measure the complex perm... [more] | MW2013-44 pp.73-78 |
| MW | 2012-12-14 10:45 |
Yamanashi | Univ. of Yamanashi | Measurement Method of Relative Permittivity and Permeability for a Ferrite Rod Using the TM and TE Modes in a Cylindrical Cavity Hirokazu Kawabata (TITC), Yoshio Kobayashi (SUMTEC) MW2012-136 |
A measurement method using a pair of the TM and TE modes of cylindrical cavity is proposed to measure the accurate relat... [more] | MW2012-136 pp.55-60 |
| MW | 2012-11-22 10:45 |
Okinawa | Discussions on Measurement Ranges in Balanced-Type Circular Disk Resonator Method to Measure Dielectric Substrates Yoshio Kobayashi (SUMTEC) MW2012-121 |
Balanced-type circular disk resonator method, excited by coaxial lines, is commonly used to measure the frequency depend... [more] | MW2012-121 pp.47-50 |
|
| MW | 2012-10-19 09:00 |
Tochigi | Utsunomiya Univ. | Relative conductivity measurements of a copper-clad dielectric substrate using a sapphire rod resonator Masayuki Tsunemitsu (Saitama Univ.), Yoshio Kobayashi (SUMTEC ,Inc.), Zhewang Ma (Saitama Univ.) MW2012-97 |
The two rod resonator method and the one rod resonator method have been commonly used to measure the surface relative co... [more] | MW2012-97 pp.93-98 |
| MW (Workshop) |
2012-08-08 - 2012-08-10 |
Overseas | Chulalongkorn University, Bangkok, Thailand | Frequency dependence measurements of complex permittivity for various dielectric materials in millimeter wave region Takashi Shimizu, Daisuke Komata (Utsunomiya Univ.), Yoshio Kobayashi (SUMTEC), Yoshinori Kogami (Utsunomiya Univ.) |
Recently, millimeter wave applications have attracted much attention to realize Giga bit class wireless system and autom... [more] | |
| MW | 2011-11-24 13:30 |
Okinawa | Some discussions of coupling coefficient between two resonators Yoshio Kobayashi (SUMTEC) MW2011-113 |
[more] | MW2011-113 pp.1-4 |
|
| MW | 2011-10-21 09:50 |
Tokyo | The University of Electro-Communications | Measurements of Complex Permittivity Anisotropy in Plane of a Sapphire Substrate Shuhei Wadayama (Saitama Univ.), Yoshio Kobayashi (SUMTEC), Zhewang Ma (Saitama Univ.) MW2011-102 |
We proposed a measurement method to evaluate complex permittivity anisotropy in plane for dielectric laminate substrates... [more] | MW2011-102 pp.89-94 |
| MW | 2010-11-25 13:00 |
Okinawa | Tiruru | Frequency dependence measurements of interface conductivity of copper-clad dielectric laminated substrates Masayuki Tsunemitsu (Saitama Univ.), Yoshio Kobayashi (SUMTEC, Inc.), Zhewang Ma (Saitama Univ.) MW2010-105 |
The interface conductivity of copper-clad dielectric laminated substrates has been measured so far by the dielectric res... [more] | MW2010-105 pp.1-6 |
| MW | 2010-09-10 09:40 |
Tokyo | Tokyo Inst. of Tech. | Design of UWB Bandpass Filters Using Microstrip Stubs-Loaded Three-Mode Resonators Toru Kimura, Zhewang Ma (Saitama Univ), Chun-Ping Chen, Tetsuo Anada (Kanagawa Univ), Yoshio Kobayashi (Saitama Univ) MW2010-76 |
[more] | MW2010-76 pp.55-60 |
| MW | 2010-09-10 10:55 |
Tokyo | Tokyo Inst. of Tech. | Some Discussions on Measurement Range in the Balanced-Type Circular Disk Resonator Method Shogo Kaneko (Saitama Univ), Yoshio Kobayashi (SUMTEC), Zhewang Ma (Saitama Univ) MW2010-79 |
[more] | MW2010-79 pp.69-74 |
| MW | 2010-09-10 11:15 |
Tokyo | Tokyo Inst. of Tech. | Microwave Measurement of Complex Permittivity Anisotropy in Plane of Dielectric Laminate Substrates Shuhei Wadayama (Saitama Univ.), Yoshio Kobayashi (SUMTEC), Zhewang Ma (Saitama Univ.) MW2010-80 |
This paper proposes a measurement method to evaluate complex permittivity anisotropy in plane for dielectric laminate su... [more] | MW2010-80 pp.75-80 |
| ED, MW | 2010-01-13 13:00 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Design of a Compact UWB Bandpass Filter Using a Microstrip Five-Mode Step-Impedance Resonator Akihito Beppu, Zhewang Ma (Saitama Univ.), Chun-Ping Chen, Tetsuo Anada (Kanagawa Univ.), Yoshio Kobayashi (Saitama Univ.) ED2009-174 MW2009-157 |
n this paper, an ultra-wideband (UWB) bandpass filter using microstrip five-mode step-impedance resonator is proposed, a... [more] | ED2009-174 MW2009-157 pp.1-6 |
| MW | 2009-11-20 10:55 |
Kagoshima | Tanegashima | Discussions on numerical estimation of propagation constant of a microstrip line in an AR1000 substrate Yoshitomi Ryohei, Yoshio Kobayashi, Zhewang Ma (Saitama Univ.) MW2009-139 |
Using complex relative permittivity in normal and tangential directions for the copper-clad ceramic/PTFE glass cloth lam... [more] | MW2009-139 pp.63-68 |
| MW | 2009-03-06 14:00 |
Tokyo | NHK Science & Technical Research Lab. | Design of a Microstrip UWB Bandpass Filter Satisfying Japan's High-Band Spectrum Mask Koji Watanabe, Akihiro Komata, Zhewang Ma (Saitama Univ.), Chun-Ping Chen, Tetsuo Anada (Kanagawa Univ.), Yoshio Kobayashi (Saitama Univ.) MW2008-200 |
In this paper, a novel ultra-wideband (UWB) bandpass filter is developed to meet Japan’s high-band spectrum mask for UWB... [more] | MW2008-200 pp.59-64 |
| MW, ED | 2009-01-15 09:55 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Improvement of the Stopband Characteristics of Banpass Filters Using Microstrip Composite Shunt Resonators Takanori Tozawa, Zhewang Ma (Saitama Univ.), Chun-Ping Chen (Kanagawa Univ, Japan), Tetsuo Anada (Kanagawa Univ.), Yoshio Kobayashi (Saitama Univ.) ED2008-206 MW2008-171 |
In this paper, a novel microstrip bandpass filter (BPF) with sharp attenuations and wide stopband is developed through a... [more] | ED2008-206 MW2008-171 pp.47-52 |
| MW, ED | 2009-01-15 10:20 |
Tokyo | Kikai-Shinko-Kaikan Bldg | Analysis of A Microstrip Parallel-Coupled Dual-Mode Ring Resonator and Its Application to the Design of Filters Hideyuki Sasaki, Zhewang Ma (Saitama Univ.), Chun-Ping Chen (Kanagawa Univ, Japan.), Tetsuo Anada (Kanagawa Univ.), Yoshio Kobayashi (Saitama Univ.) ED2008-207 MW2008-172 |
By using the even-odd mode method, a micostrip parallel-coupled dual-mode square ring resonator is analyzed based on its... [more] | ED2008-207 MW2008-172 pp.53-58 |
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