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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW, AP (Joint) |
2021-09-09 14:00 |
Online | Online | Matching Circuit Design of Frequency Dispersive Phase Shifter for Dual Band Base Station Antenna Toshiki Soma, Keizo Cho (Chiba Inst. Tech.), Naobumi Michishita (National Defense Academy), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Hiroaki Nakabayashi (Chiba Inst. Tech.)  AP2021-56 |
In a base station antenna that shares multiple frequency bands, The direction of radiation is the same in the shared fre... [more] | AP2021-56 pp.1-5 |
| AP | 2021-02-19 13:25 |
Online | Online | [Invited Lecture]
Propagation Characteristics for Different Antennas in 28 GHz Band Ichiro Oshima, Noboru Sekino (DKK), Tetsuro Imai (TDU) AP2020-126 |
Propagation measurements were performed for local 5G area design in the 28 GHz band by changing the antenna type outdoor... [more] | AP2020-126 pp.56-61 |
| AP, RCS (Joint) |
2019-11-21 11:20 |
Saga | Saga Univ. | Equivalent circuit parameters reducing beam squint of left-handed leaky wave antenna Kazuki Terada, Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA), Ichiro Oshima (DKK) AP2019-122 |
A rod-like leaky wave antenna composed of CRLH transmission lines has been proposed as a base station antenna for small ... [more] | AP2019-122 pp.91-94 |
| AP, RCS (Joint) |
2019-11-22 10:55 |
Saga | Saga Univ. | [Tutorial Lecture]
Application of Meta-material to Base Station Antennas for Mobile Communication Systems Keizo Cho (Chiba Inst. Tech), Naobumi Michishita (National Defense Academy), Ichiro Oshima (DKK) AP2019-133 RCS2019-228 |
[more] | AP2019-133 RCS2019-228 pp.145-150(AP), pp.139-144(RCS) |
| AP (2nd) |
Overseas | Hotel Istana, Kuala Lumpur | Phase Variation Analysis of Leaky Wave Antenna Composed of CRLH Transmission Line Using Equivalent Circuit Kazuki Terada, Keizo Cho, Hiroaki Nakabayashi (CIT), Naobumi Michishita (NDA), Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK) |
A leaky wave antenna configured by CRLH transmission lines has been proposed. There is a problem that the direction of t... [more] | ||
| WPT | 2019-03-08 10:25 |
Kyoto | Kyoto Univ. Uji Campus | A study on the OTA measurement for the interference of the wireless power transmission Keisuke Sato, Noboru Sekino, Hayate Kimoto, Syo Yoshida, Ichiro Oshima (DKK), Kentaro Nishimori (Niigata Univ.) WPT2018-85 |
Wireless power transmitter (WPT) using microwaves must have a technology of reduction interference to the existing wirel... [more] | WPT2018-85 pp.109-112 |
| AP | 2019-02-22 14:25 |
Osaka | Sumitomo Electric Industries (Osaka Works) | [Invited Lecture]
CRLH Transmission Line Leaky Wave Antenna with Dual Band and Dual Polarized Wave by Grounded Coplanar Transmission Line Takayoshi Sasaki, Keisuke Sato, Ichiro Oshima (DKK), Naobumi Michishita (NDA), Keizo Cho (CIT) AP2018-183 |
The authors have developed a left-handed leaky wave sector antenna with a grounded coplanar line so far. In this report,... [more] | AP2018-183 pp.77-82 |
| AP | 2016-05-20 15:40 |
Hyogo | kobe Univ. | Simulation Evaluation of Cell Quality by Beam Control on Active Array Antenna System Masayuki Nakano, Toru Kitayabu (KDDI R&D Labs.), Keisuke Sato, Ichiro Oshima (DKK) AP2016-30 |
Active array antenna system (AAS) is considered as the base station of the next generation. In order to reduce the inter... [more] | AP2016-30 pp.77-82 |
| AP | 2016-03-10 10:55 |
Yamanashi | Isawa Onsen (Kanpo no Yado) | Equivalent Circuit Design of Unit Cell in Frequency Dispersive Phase Shifter Enlarging Frequency Dispersion of Phase Characteristics for Multi-Band Base Station Antenna Yasuhito Yanagisawa, Ryuji Kataoka, Keizo CHO (CIT), Naobumi Michishita (NDA), Ichiro Oshima (DKK) AP2015-205 |
Frequency dispersive phase shifter for a multi-band base station antenna, which is capable of increasing the communicati... [more] | AP2015-205 pp.7-11 |
| MW, AP (Joint) |
2015-09-17 11:30 |
Tochigi | Oyama National College of Tech. | [Tutorial Lecture]
Attraction of the Antenna as Viewed from the Object Making Tsuyoshi Shimoda, Koji Sobajima (DKK) AP2015-81 |
With the advancement of wireless communication, many kinds of antenna have been introduced to the market. Designed based... [more] | AP2015-81 pp.11-14 |
| MW, AP (Joint) |
2015-09-18 12:45 |
Tochigi | Oyama National College of Tech. | Field Evaluation of Cell Quality by Beam Control with Active Array Antenna System Masayuki Nakano, Toru Kitayabu (KDDI R&D Labs.), Shohei Natori, Keisuke Sato, Ichiro Oshima (DKK), Koji Miyata, Hisahiro Hayashi, Kazuhiro Gosui (KDDI) AP2015-90 |
Active array antenna system (AAS) is considered as the base station of the next generation. In order to reduce the inter... [more] | AP2015-90 pp.59-64 |
| AP | 2015-05-22 13:00 |
Nara | Naraken Shakai Fukushi Sougou Center (Kashihara City) | Left-Handed Band Leaky Wave Omnidirectional Antenna Ichiro Oshima, Takuya Seki (DKK), Naobumi Michishita (NDA), Keizo Cho (CIT) AP2015-27 |
We propose a novel leaky-wave omnidirectional antenna using a coplanar-strip-type composite right/left-handed (CRLH) lin... [more] | AP2015-27 pp.47-50 |
| AP | 2015-02-19 14:35 |
Hyogo | Chusho-kigyou center at Amagasaki-City | [Invited Lecture]
Dual-Polarized Base Station Antenna Design for a Robust Multi-User MIMO System Ichiro Oshima (DKK), Yoshio Karasawa (UEC) AP2014-195 |
The optimal configuration for a four- element linear array was previously proposed as an antenna array configuration for... [more] | AP2014-195 pp.49-53 |
| AP | 2014-02-07 10:00 |
Aichi | Kojima Industries Corporation, Kojima Research Center | [Invited Lecture]
Study of Measurement Method of Transmitter Characteristecs of Active Array Antenna for Cellular Base Station Yukitaka Takahashi, Shohei Natori, Keisuke Sato, Ichiro Oshima (DKK), Toru Kitayabu, Masayuki Nakano (KDDI Lab.) AP2013-177 |
Active array Antenna System (AAS) is expected for base station antenna of next generation mobile communication system (I... [more] | AP2013-177 pp.63-68 |
| AP, RCS (Joint) |
2011-11-17 13:30 |
Aichi | Nagoya Congress Center | [Requested Talk] Reverberation Chamber for MIMO-OTA Testing System
-- The Performance and Possibility -- Ichiro Oshima (DKK), Yoshio Karasawa (UEC) AP2011-108 RCS2011-212 |
Creation of multipath-rich propagation environment is needed to evaluate the performance of a MIMO communication termin... [more] |
AP2011-108 RCS2011-212 pp.109-114(AP), pp.139-144(RCS) |
| ICD | 2005-05-27 13:30 |
Hyogo | Kobe Univ. | Integrated stereo sigma-delta class D amplifier Eric Gaalaas (ADI), Bill Liu, Naoaki Nishimura (ADKK) |
(Advance abstract in Japanese is available) [more] | ICD2005-33 pp.31-34 |
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