Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
ED, MW |
2024-01-26 10:10 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. (Primary: On-site, Secondary: Online) |
Design of Novel Box-type Coupling Microstrip Diplexer with Transmission Zeros Yudai Nishiyama, Masataka Ohira, Zhewang Ma (Saitama Univ.) ED2023-72 MW2023-164 |
This paper proposes a new box-type coupling microstrip diplexer that can place transmission zeros at arbitrary frequenci... [more] |
ED2023-72 MW2023-164 pp.29-34 |
MW |
2023-06-22 14:00 |
Kanagawa |
Yugawara-machi Shou-Kou-Kai Bldg. (Primary: On-site, Secondary: Online) |
Design of Fourth-order Symmetric Box-Coupling Microstrip Bandpass Filters with Transmission Zeros for Asymmetric Frequency Responses Koya Hirota, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2023-21 |
Bandpass filters (BPFs) composed of four resonators as a basic component have been proposed so far, such as CQ filters. ... [more] |
MW2023-21 pp.7-12 |
ED, MW |
2022-01-27 15:05 |
Online |
Online |
[Invited Lecture]
A Compact 26 GHz Filtering Antenna with Cross Coupling Using LTCC Substrate Kaoru Sudo, Ryo Mikase, Yoshinori Taguchi, Koichi Takizawa, Natsumi Minamitani, Kengo Onaka, Saneaki Ariumi, Hisao Hayafuji (Murata), Masataka Ohira (Saitama Univ.) ED2021-66 MW2021-108 |
This paper proposes a compact 26 GHz filtering antenna with cross coupling using LTCC substrate. The cross coupling betw... [more] |
ED2021-66 MW2021-108 pp.22-27 |
MW |
2021-11-18 16:05 |
Kagoshima |
Kagoshima University (Primary: On-site, Secondary: Online) |
60-GHz Band Inline-Type SIW Filtering Antenna With Transmission Zeros Without Cross Coupling Masaki Hoshino, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2021-72 |
This paper proposes a new structure of 60-GHz band inline-type SIW filtering antenna that can generate transmission zero... [more] |
MW2021-72 pp.29-34 |
CAS, NLP |
2021-10-14 10:50 |
Online |
Online |
A Method of Designing a Hilbert Transformer with Transmission Zeros at Specified Positions Ohata Yohei, Takao Keisuke, Natori Takahiro, Aikawa Naoyuki (TUS) CAS2021-19 NLP2021-17 |
A method using a FIR Hilbert transformer is known as a method for estimating frequency. In this method, an oscillating c... [more] |
CAS2021-19 NLP2021-17 pp.12-16 |
MW |
2020-03-05 13:35 |
Kochi |
Kochi City Culture-Plaza CUL=PORT (Cancelled but technical report was issued) |
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 pp.29-34 |
MW |
2020-03-05 15:05 |
Kochi |
Kochi City Culture-Plaza CUL=PORT (Cancelled but technical report was issued) |
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 pp.47-52 |
MW |
2019-11-15 09:55 |
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 pp.71-76 |
MW, ED |
2019-01-18 15:15 |
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 pp.103-108 |
MW |
2018-12-13 10:10 |
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 pp.7-12 |
MW, WPT |
2018-04-27 14:25 |
Tokyo |
Kikai-Shinko-Kaikan Building |
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 |
WPT, MW |
2017-04-28 15:50 |
Tokyo |
Kikai-Shinko Kaikan, B2-1 |
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. |
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 |
ICD, MW |
2016-03-03 13:10 |
Hiroshima |
Hiroshima University |
[Special Talk]
Design and Fabrication of Bandpass Filter Using Microstrip Quarter-wavelength Resonators to Realize a Specified Attenuation Toshiki Kato, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2015-193 ICD2015-116 |
This paper presents a bandpass filter design using microstrip quarter-wavelength resonators to realize 50dB attenuation ... [more] |
MW2015-193 ICD2015-116 pp.113-116 |
MW |
2016-01-14 13:00 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Design of Fully Canonical Cul-de-Sac Coupling Microstrip Filters Having Transmission Zeros for Symmetric and Asymmetric Frequency Responses Toshiki Kato, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2015-159 |
A microwave bandpass filter having a generalized Chebyshev function characteristic can generate transmission zeros at ar... [more] |
MW2015-159 pp.1-6 |
MW |
2015-12-17 14:50 |
Tokyo |
Tokyo Univ. of Science |
Design of Broad-Band Bandpass Filters with Transmission Zeros Using Short-Circuited Transmission Line Stubs Ryuhi Hamano, Zhewang Ma, Masataka Ohira (Saitama Univ.), Chun-Ping Chen, Tetsuo Anada (Kanagawa Univ.) MW2015-141 |
Broadband bandpass filters (BPFs) using short-circuited stubs have a number of advantages, like rigorous synthesis theor... [more] |
MW2015-141 pp.47-52 |
MW |
2015-12-17 15:15 |
Tokyo |
Tokyo Univ. of Science |
A Single-layer Planar Filter Structure to Realize Fully Canonical Cul-de-Sac Coupling Matrix and Design of Bandpass Filters with Transmission Zeros Toshiki Kato, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2015-142 |
A Cul-de-Sac coupling matrix can be obtained by matrix transformation from a transversal array coupling matrix that can ... [more] |
MW2015-142 pp.53-58 |
MW |
2015-05-29 16:50 |
Tokyo |
The Univ. of Electro-Commun. |
Design of Microstrip Bandpass Filter with Transmission Zeros Using Half-wavelength Resonator Transversal Array Toshiki Kato, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2015-37 |
We have reported a new design method for multi-mode bandpass filters with transmission zeros (TZs) based on a synthesis ... [more] |
MW2015-37 pp.93-98 |
MW |
2014-05-22 11:15 |
Kyoto |
Doshisha Univ. |
A Generation Technique of Transmission Zeros for Multimode Bandpass Filter Using Direct S/L Coupling Produced by Antiparallel Coupling Structure Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2014-28 |
According to a general filter synthesis theory, the number of transmission zeros (TZs) that can be generated by a couple... [more] |
MW2014-28 pp.25-30 |
MW |
2013-12-19 09:55 |
Saitama |
Saitama Univ. |
Application of Frequency-Dependent Direct Source/Load Coupling to Design of Dual-mode Loop Resonator Filter with Transmission Zeros Hiroyuki Aoyama, Masataka Ohira, Zhewang Ma (Saitama Univ.) MW2013-152 |
In microwave filter design, transmission zeros (TZs) generated by cross couplings and/or a direct source/load (S/L) coup... [more] |
MW2013-152 pp.7-12 |