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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 17 of 17  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
ED, MW 2024-01-26
14:50
Tokyo Kikai-Shinko-Kaikan Bldg.
(Primary: On-site, Secondary: Online)
[Invited Talk] Research on Phased Array Antenna Device for Beyond 5G
Takana Kaho, Hideya So, Koji Matsunaga (Shonan Inst. Tech.) ED2023-80 MW2023-172
Beyond 5G mobile communication systems are expected to use higher frequencies, and base station equipment is required to... [more] ED2023-80 MW2023-172
pp.75-80
MWPTHz, EST, MW, EMT, OPE, IEE-EMT [detail] 2022-07-19
10:10
Hokkaido Asahikawa Civic Culture Hall
(Primary: On-site, Secondary: Online)
A 5.2GHz-Band Reflection-Type Retrodirective Array Using Butler Matrix with Broadside Couplers
Yusaku Honma, Jean Temga, Tomoyuki Furuichi, Takashi Shiba, Noriharu Suematsu (Tohoku Univ.) EMT2022-19 MW2022-43 OPE2022-22 EST2022-20 MWPTHz2022-17
In backscatter system, increasing the gain of the tag antennas is an important task for extending the communication rang... [more] EMT2022-19 MW2022-43 OPE2022-22 EST2022-20 MWPTHz2022-17
pp.62-65
AP, WPT
(Joint)
2022-01-21
13:30
Tottori Kenmin-Fureai-Kaikan
(Primary: On-site, Secondary: Online)
Proposal on Novel Staircase Array Antenna Configuration utilizing Stacked Butler Matrix
Hideya So, Yoshitada Watanabe, Takana Kaho (SIT), Mizuki Suga, Takuto Arai, Yushi Shirato, Hideki Toshinaga, Daisei Uchida, Naoki Kita (NTT) AP2021-151
Massive Multiple-Input Multiple-Output (Massive MIMO), which uses a large number of antenna elements, has been investiga... [more] AP2021-151
pp.92-97
MW, AP
(Joint)
2021-09-09
13:00
Online Online Fundamental Examination of Beam Reflection Circuit Using Butler Matrix
Yusaku Honma, Noriharu Suematsu (Tohoku Univ.) MW2021-33
In backscatter system such as Radio Frequency Identification (RFID), increasing the gain of the tag antennas is an impor... [more] MW2021-33
pp.1-5
MW 2021-05-20
13:30
Online Online Trial Fabrication and Evaluation of PTFE Substrate Integrated Waveguide Butler Matrix for Short Millimeter-Wave
Mitsuyoshi Kishihara (Okayama Pref. Univ.), Kaito Fujitani, Akinobu Yamaguchi, Yuichi Utsumi, Isao Ohta (Univ. of Hyogo) MW2021-6
This paper attempts to fabricate and evaluate a 4×4 Butler matrix for short millimeter-wave, based on the fabrication pr... [more] MW2021-6
pp.5-10
AP
(2nd)

Overseas Hotel Istana, Kuala Lumpur Design of Millimeter-wave 4x4 Butler Matrix using Finline in Double Layer Dielectric Substrate
Nguyen Thanh Tuan, Kunio Sakakibara, Nobuyoshi Kikuma (NIT), Kojiro Iwasa, Takeshi Okunaga, Akira Nakatsu (NIPPON PILLAR)
In the fifth generation mobile communication system (5G) and high-resolution automotive radar systems, beam-scanning is ... [more]
MW
(2nd)
2019-06-26
- 2019-06-28
Overseas RUS, Bangkok, Thailand Design of Substrate Integrated Waveguide Type Butler Matrix at 12.5GHz
Kohei Fukuda, Koki Denda, Tadashi Kawai, Akira Enokihara (Univ. of Hyogo)
In this paper, we study -3dB and 0dB couplers of the H-plane waveguide circuits in order to apply these couplers to Subs... [more]
AP, SANE, SAT
(Joint)
2018-07-19
14:25
Hokkaido Hokkaido Univ. Performance Evaluation of Multi-Beam Massive MIMO Using 64 Multi-Beam Pattern
Akinori Kudo, Kentaro Nishimori, Ryotaro Taniguchi, Shota Ogawa, Fumiya Muramatsu (Niigata Univ.), Takefumi Hiraguri (NIT.), Jiro Hirokawa (Tokyo Tech.) AP2018-55
Multi-beam massive MIMO configuration has been proposed that utilizes the beam selection with high power in an analog pa... [more] AP2018-55
pp.79-84
AP, RCS
(Joint)
2017-11-08
09:50
Fukuoka Fukuoka University Design of Millimeter-wave 4x4 Butler Matrix for Feeding Circuit of Multi-beam Antenna Using Finline in Multilayer Substrate
Yuta Mizuno, Kunio Sakakibara, Nobuyoshi Kikuma (NIT), Kojiro Iwasa (PILLAR) AP2017-109
Multi-beam antennas which can cover wide angle with high gain are attracted for practical applications of millimeter wav... [more] AP2017-109
pp.9-14
AP 2017-10-20
14:00
Aomori Hchinohe-Shoukou-Kaikan Propagation Analysis by Number of Beams for Horizontal Antenna Pattern -- Base Station Antenna Characteristics by Single Beam or Multi-Beam --
Mayumi Yoshino, Doppo Sugimura, Makoto Mizumura (Dengyo), Yoshio Ebine (NAZCA) AP2017-104
In this paper, we consider number of horizontal antenna pattern beams and perform propagation analysis in urban or subur... [more] AP2017-104
pp.51-56
MW, ICD 2017-03-02
09:00
Okayama Okayama Prefectural Univ. Fabrication of Integrated PTFE-Filled Waveguide Butler Matrix for Short Millimeter-Wave by SR Etching -- Construction Using Cruciform Couplers and Intersection Circuits --
Mitsuyoshi Kishihara (Okayama Pref. Univ.), Akinobu Yamaguchi, Yuichi Utsumi, Isao Ohta (Univ. of Hyogo) MW2016-188 ICD2016-118
This paper attempts to fabricate an integrated waveguide Butler matrix for short millimeter-wave using SR etching proces... [more] MW2016-188 ICD2016-118
pp.1-6
AP 2017-02-17
10:20
Tochigi Tochigiken-sougou-bunnka Center [Invited Lecture] Ray Tracing Propagation Analysis by Considering with Multi-Beam Antenna Pattern
Mayumi Yoshino, Doppo Sugimura, Makoto Mizumura (Dengyo), Yoshio Ebine (NAZCA) AP2016-169
In this paper,we perform ray tracing propagation analysis considering with multi-beam antenna to investigate the effect ... [more] AP2016-169
pp.71-76
AP 2016-06-09
13:30
Tokyo Kikai-Shinko-Kaikan Bldg. Evaluation of 16X16 way One-body 2-D Beam-switching Butler Matrix
Dong-Hun Kim, Jiro Hirokawa, Makoto Ando (TITECH) AP2016-33
Characteristics of a 16×16-way one-body two-dimensional (2-D) beam-switching Butler matrix with short-slot 2-plane coupl... [more] AP2016-33
pp.9-12
AP 2015-04-22
14:25
Okinawa Ishigaki City Design of Two-dimensional Beam-switching Butler Matrix using Short-Slot Two-plane Couplers
Dong-Hun Kim, Jiro Hirokawa, Makoto Ando (TITECH) AP2015-4
A two-dimensional (2-D) beam-switching Butler matrix using short-slot two-plane couplers is proposed. A short-slot 2-pla... [more] AP2015-4
pp.13-16
AP 2009-10-08
16:00
Shizuoka Shizuoka University Positioning System for the Passive RFID Tag
Hideki Nakamura, Yoshihiko Kuwahara (Shizuoka Univ.), Kazuo Ishida, Masayoshi Kai (NECST) AP2009-117
In this report, positioning system for the passive RFID tag is presented. The antenna aperture is composed of 2
4-eleme... [more]
AP2009-117
pp.85-90
SIS 2008-12-04
13:55
Osaka Kansai Univ. Trial Manufacturing and Evaluation of the Direction Finder for Passive RFID Tag
Yoshihiko Kuwahara, Hideki Nakamura (Shizuoka Univ.), Masayoshi Kai (NEC System Technologies, Ltd)
In this report, trial manufacturing and evaluation test results of the direction finder for the passive RFID tag are pre... [more] SIS2008-50
pp.45-50
RCS, AP
(Joint)
2007-11-08
15:25
Tokyo Univ. of Electro-Commun. Single-Layer Post-Wall Waveguide Butler Matrix with 180-Degree Dividers to control Crossing and Sidelobe Levels
Keiichi Morimoto, Jiro Hirokawa, Makoto Ando (Tokyo Tech) AP2007-113
The configuration of an additional circuit to the 4-way Butler matrix was proposed to control the crossover and sidelobe... [more] AP2007-113
pp.63-68
 Results 1 - 17 of 17  /   
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