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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 20 of 33  /  [Next]  
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW, ED 2023-01-27
10:00
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
Design of Parasitic-Element Loaded Wideband Filtering Antenna with Unidirectional Radiation Pattern over 30% Frequency Bandwidth
Ken Sakiyama, Masataka Ohira, Zhewang Ma (Saitama Univ.) ED2022-87 MW2022-146
In this paper, we propose a new structure of wideband filtering antenna that realizes a very flat in-band gain and unidi... [more] ED2022-87 MW2022-146
pp.7-12
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
MW 2021-03-05
10:30
Online Online Design of Tunable Filtering Array Antenna with Constant Absolute Bandwidth
Takuya Sakemoto, Masataka Ohira, Zhewang Ma (Saitama Univ.), Akihiiro Yamada (Nippon Antenna) MW2020-91
In recent years, the demand for tunable antennas has been increasing with the rapid growing various wireless communicati... [more] MW2020-91
pp.1-6
IN, RCS, NV
(Joint)
2020-05-21
10:00
Online Online A Study on Combined Effect of Cluster Multilayering and MMSE Filtering on Inter-cluster Interference Mitigation in 5G Advanced Ultra-dense RAN
Ryo Takahashi, Hidenori Matsuo, Fumiyuki Adachi (Tohoku Univ.) RCS2020-10
In ultra-dense RAN consisting of a large number of distributed antennas, the coverage and the capacity can be improved b... [more] RCS2020-10
pp.1-6
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
WPT
(2nd)
2019-10-31
- 2019-11-02
Overseas Xidian University [Invited Talk] [Invited Talk] Complex Impedance Matching Filtering Antenna for Rectenna in MPT
Yazhou Dong, Shi-wei Dong, Xiaojun Li (CAST Xi'an), Steven Gao (Univ. of Kent)
In traditional rectenna design, the matching network and filter occupy lots of space, introduce additional losses, and r... [more]
RCS 2019-06-20
09:40
Okinawa Miyakojima Hirara Port Terminal Building Investigation on Efficient Construction Scheme of Peak Cancellation Signals in Complexity-Reduced PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals
Taku Suzuki, Mikihito Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-64
In this paper, we investigate efficient construction schemes of the peak cancellation (PC) signals in the complexity-red... [more] RCS2019-64
pp.161-167
RCS 2019-06-21
15:25
Okinawa Miyakojima Hirara Port Terminal Building Complexity-Reduced Algorithm for Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for MIMO-OFDM Signals
Mikihito Suzuki, Taku Suzuki (Tokyo Univ. of Science), Yoshihisa Kishiyama (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2019-97
In this paper, we propose a computational complexity-reduced algorithm for our previously reported adaptive peak-to-aver... [more] RCS2019-97
pp.353-358
MW, ED 2019-01-18
14:50
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
pp.97-102
RCS 2018-06-22
09:30
Nagasaki Nagasaki University Combination of Beamforming with Per-Antenna Power Constraint and Adaptive PAPR Reduction Method Using Null Space in MIMO Channel for Multiuser Massive MIMO-OFDM Transmission
Mikihito Suzuki (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2018-63
In this paper, we investigate a combination of the beamforming (BF) with per-antenna power limitation and adaptive peak-... [more] RCS2018-63
pp.167-172
MW 2017-12-19
15:15
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
13:00
Saitama Saitama University [Tutorial Lecture] A Design Method of Filtering Antennas
Masataka Ohira (Saitama Univ.) AP2017-93
This paper summarizes a design method of filtering antenna, which is constructed by replacing the Nth resonator of an Nt... [more] AP2017-93
pp.31-36
RCS 2017-06-23
11:00
Okinawa Ishigaki Shoukou Kaikan Performance Evaluations on Adaptive PAPR Reduction Method Using Null Space of MIMO Channel for Eigenmode Massive MIMO-OFDM Signals
Yuki Matsumoto (Tokyo Univ. of Science), Kiichi Tateishi (NTT DOCOMO), Kenichi Higuchi (Tokyo Univ. of Science) RCS2017-85
The combination of massive multiple-input multiple-output (MIMO) with beamforming (BF) and orthogonal frequency division... [more] RCS2017-85
pp.209-214
MW
(2nd)
2017-06-14
- 2017-06-16
Overseas KMUTT, Bangkok, Thailand [Poster Presentation] Ground Penetrating Radar Imaging Using Migration Technique
Kiattisak Yochanang, Akkarat Boonpoonga (KMUTNB)
It is well known in B-scan ground penetrating radar (GPR) imagery that the underground scatterers generally exhibit defo... [more]
CAS, CS 2017-02-24
09:30
Shiga   Capacity of Collaborative Interference Canceller: Quantization Error and Spatial Correlation
Daisuke Umehara, Rieko Saiki (Kyoto Inst. of Tech.), Hidekazu Murata (Kyoto Univ.), Satoshi Denno (Okayama Univ.) CAS2016-125 CS2016-86
Let us assume that space division multiplexing (SDM) signal is transmitted at a base station (BS) with a number of anten... [more] CAS2016-125 CS2016-86
pp.63-68
CAS, CS 2017-02-24
09:55
Shiga   A Study of Received Signal Sharing Schemes for Collaborative Interference Canceller
Daisuke Umehara, Shuhei Ueno, Ryota Akagi (Kyoto Inst. of Tech.), Hidekazu Murata (Kyoto Univ.), Satoshi Denno (Okayama Univ.) CAS2016-126 CS2016-87
Let us assume that space division multiplexing (SDM) signal is transmitted at a base station (BS) with a number of anten... [more] CAS2016-126 CS2016-87
pp.69-74
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
RCS 2015-10-02
09:00
Kanagawa YRP (Yokosuka) Joint Tx/Rx MMSE Filtering for Downlink Single-Carrier MU-MIMO
Shinya Kumagai, Fumiyuki Adachi (Tohoku Univ.) RCS2015-176
In broadband single-carrier (SC) multi-user (MU) multiple-input multiple-output (MIMO) transmissions, inter-symbol inter... [more] RCS2015-176
pp.101-106
SIP, RCS 2015-01-23
15:25
Okayama Okayama Univ. Joint Tx/Rx MMSE Filtering for Uplink Single-Carrier MU-MIMO
Shinya Kumagai, Fumiyuki Adachi (Tohoku Univ.) SIP2014-112 RCS2014-300
In broadband single-carrier (SC) multi-user (MU) multiple-input multiple-output (MIMO) transmissions, inter-symbol inter... [more] SIP2014-112 RCS2014-300
pp.181-186
MW, ED 2015-01-16
16:10
Tokyo Kikai-Shinko-Kaikan Bldg. Design of a Filtering Antenna Based on Parameter-Extraction Method Using Input Reflection Responses
Kazuma Yamanaka, Masataka Ohira, Zhewang Ma (Saitama Univ.) ED2014-137 MW2014-201
The filtering antenna is basically composed of an N-th order bandpass filter obtained by replacing N-th resonator with a... [more] ED2014-137 MW2014-201
pp.117-122
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