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 Results 1 - 14 of 14  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
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, WPT 2018-04-27
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
ED, MW 2018-01-26
Tokyo Kikai-Shinko-Kaikan Bldg. 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
MW 2017-12-19
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
Saitama Saitama University 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
Saitama Saitama University 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
WPT, MW 2017-04-28
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
MW, ED 2017-01-27
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
MW, ED 2017-01-27
Tokyo Kikai-Shinko-Kaikan Bldg. Improved Design Method of Dual-Band Bandpass Filters Using Microstrip Composite Resonators
Ru Zhang, Zhewang Ma, Masataka Ohira, Xiaolong Wan (Saitama Univ.), Chun-Ping Chen, Tetsuo Anada (Kanagawa Univ.) ED2016-105 MW2016-181
 [more] ED2016-105 MW2016-181
MW 2016-12-16
Kanagawa National Defense Academy 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
MW 2014-03-04
Ehime Ehime University [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
MW 2011-10-20
Tokyo The University of Electro-Communications 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
MW 2011-10-21
Tokyo The University of Electro-Communications 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
EMCJ, MW, IEE-MAG 2009-10-22
Iwate Iwate Univ. 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
 Results 1 - 14 of 14  /   
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