Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
MW, EMCJ, EST, IEE-EMC [detail] |
2023-10-20 10:00 |
Yamagata |
Yamagata University (Primary: On-site, Secondary: Online) |
Study on Efficiency Improvement of Dual-Input GaN Amplifier as Outphasing Amplifier Shinro Yatsuda, Rikito Matsuo, Takana Kaho (Shonan Inst.Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (Mitsubishi Electric) EMCJ2023-59 MW2023-113 EST2023-86 |
We are developing a base station amplifier that covers a wide frequency range of 4G/5G by switching the Doherty and outp... [more] |
EMCJ2023-59 MW2023-113 EST2023-86 pp.125-130 |
MW |
2022-11-15 13:00 |
Nagasaki |
Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
Improvement of Output Back-off Performance on Outphasing Operation by Using 50-Ω Design Power Amplifiers at Quasi-Millimeter-Wave Band Nao Ashizawa, Kazuhiko Honjo, Ryo Ishikawa (UEC) MW2022-111 |
In order to handle digital modulation signals used in beyond 5G systems, RF power amplifiers with a wide-dynamic-range c... [more] |
MW2022-111 pp.13-18 |
AP |
2022-10-19 09:30 |
Gifu |
GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
[Poster Presentation]
Fast and High-accuracy Channel Estimation Method for Reconfigurable Intelligent Surfaces Combining Load Modulation and Compressed Sensing Techniques Shun Sasaki, Takumi Kato, Kentaro Murata, Naoki Honma (Iwate Univ.) AP2022-105 |
In this study, we propose a channel estimation method for reconfigurable intelligent surfaces (RIS) combining the load m... [more] |
AP2022-105 pp.47-52 |
AP, MW (Joint) |
2022-09-15 11:35 |
Ehime |
The Museum of Art, EHIME (Primary: On-site, Secondary: Online) |
Examination of Wideband Measurement of Dual-input GaN Amplifier Using Vector Transceiver Takato Suzuki, Yahiro Nanba, Takana Kaho (Shonan Inst. Tech.), Shuichi Sakata, Yuji Komatsuzaki, Koji Yamanaka (MELCO) MW2022-75 |
We are researching a wideband dual-input one-output GaN amplifier for base stations that covers 4G / 5G frequencies. It ... [more] |
MW2022-75 pp.36-41 |
ED, MW |
2022-01-27 16:05 |
Online |
Online |
[Invited Talk]
Wideband Load Modulated GaN Power Amplifiers for Wireless Base-Stations Shuichi Sakata, Yuji Komatsuzaki, Kento Saiki, Koji Yamanaka, Masaomi Tsuru (Mitsubishi Electric) ED2021-68 MW2021-110 |
Recently, 5G commercial services which have features of high speed, large capacity and multi-connectivity have rolled ou... [more] |
ED2021-68 MW2021-110 pp.32-37 |
EMCJ, EMD, WPT (Joint) |
2021-07-02 14:20 |
Online |
Online |
Cavity Resonant Wireless Power Transfer Based on Online S-parameter Estimation Keito Takiya, Shinnosuke Kondo, Kentarou Murata, Naoki Honma (Iwate Univ.) WPT2021-5 |
To improve the transmission efficiency at blind spots caused by standing waves in a cavity, a novel cavity resonant wire... [more] |
WPT2021-5 pp.1-6 |
MW |
2020-12-10 13:15 |
Kanagawa |
(Primary: On-site, Secondary: Online) |
A 3.9-GHz-Band GaN HEMT Outphasing Power Amplifier with Reactance-Compensation Compact Combiner Ryoichi Ogasawara, Yoichiro Takayama, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2020-71 |
Recently, the need for large-capacity communications has increased in wireless communication systems due to the increase... [more] |
MW2020-71 pp.1-6 |
EMCJ, MW, EST, IEE-EMC [detail] |
2019-10-24 10:55 |
Miyagi |
Tohoku Gakuin University(Conf. Room 2, Eng. Bldg. 1) |
Efficiency Enhancement of GaN Doherty Power Amplifier at Large Power Back-Off with Virtual Short Stub Technique Satoru Honda, Shuichi Sakata, Yuji Komatsuzaki, Shintaro Shinjo (Mitsubishi Electric) EMCJ2019-40 MW2019-69 EST2019-48 |
We propose a new efficiency enhancement technique of Doherty power amplifiers (DPAs) using virtual short stub. In this t... [more] |
EMCJ2019-40 MW2019-69 EST2019-48 pp.21-25 |
WPT, EMCJ (Joint) |
2017-11-21 15:40 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Wireless Power and Data Transfer System Takatoshi Shirosugi, Katsuei Ichikawa, Hitoshi Akiyama (Hitachi) WPT2017-51 |
In order to reduce the sensor wires, we have developed elemental technology and system about the Wireless Power and Data... [more] |
WPT2017-51 pp.39-43 |
AP, RCS, WPT, SAT (Joint) |
2015-11-06 10:55 |
Okinawa |
Okinawa Prefectural Museum & Art Museum |
Non-Contact Channel Estimation of Propagation Channel Using Load Modulation for Evaluating Miniaturized MIMO Antenna Kazuya Takahashi, Naoki Honma (Iwate Univ.), Kentaro Murata (NDA), Yoshitaka Tsunekawa (Iwate Univ.) AP2015-145 |
In this paper, a non-contact channel estimation method suitable for a miniaturized MIMO (Multiple-Input Multiple-Output)... [more] |
AP2015-145 pp.201-206 |
AP |
2015-06-11 13:25 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Accuracy Evaluation of Gesture Recognition Using RFID with Load Modulation Technique Shun Sasaki, Takuma Ito, Naoki Honma, Yoshitaka Tsunekawa (Iwate Univ.) AP2015-33 |
The authors have proposed a direction estimation method of passive RFID(Radio Frequency IDentification), where a load mo... [more] |
AP2015-33 pp.7-12 |
AP |
2015-01-22 13:35 |
Ehime |
Ehime University |
Experimental Performance Evaluation of Interference Reduction Between Multiple Wireless Systems Exploiting Load Modulation Takuma Ito, Naoki Honma (Iwate Univ.), Kentaro Nishimori (Niigata Univ.), Yoshitaka Tsunekawa (Iwate Univ.) AP2014-168 |
When secondary system uses the same frequency band in the area of primary system such as television broadcast system whi... [more] |
AP2014-168 pp.39-44 |
AP |
2014-12-11 12:25 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Measurement of Complex Radiation Pattern of MIMO Antenna Using Backscattering Waves Masatoshi Saitoh (Tohoku Univ.), Naoki Honma (Iwate Univ.), Qiang Chen (Tohoku Univ.) AP2014-152 |
The coaxial cables seriously affect the measurement accuracy of the complex radiation patterns of the MIMO antenna due t... [more] |
AP2014-152 pp.7-12 |
AP |
2014-06-12 15:20 |
Tokyo |
Kikai-Shinko-Kaikan Bldg. |
Transmit Beamforming Technique for Short-range MIMO Based on Channel Estimation Using Load Modulation Kentaro Murata (NDA), Naoki Honma (Iwate Univ.), Kentaro Nishimori (Niigata Univ.), Hisashi Morishita (NDA) AP2014-46 |
In this report, a transmit beamforming technique based on channel estimation using load modulation for short-range MIMO ... [more] |
AP2014-46 pp.35-40 |
AP |
2014-05-30 13:35 |
Okinawa |
Okinawa Industory Support Center |
Method to Reduce Complexity of MLD in Massive and Passive MIMO using Beam-forming at Receiver Ryota Takahashi, Keisuke Terasaki (Iwate Univ.), Kentaro Murata (NDA), Naoki Honma, Yoshitaka Tsunekawa (Iwate Univ.) AP2014-35 |
In this report , we show the method to reduce complexity of demodulation in passive Multiple-Input Multiple-Output (MIMO... [more] |
AP2014-35 pp.85-90 |
AP (2nd) |
2014-04-25 11:25 |
Miyagi |
Aoba Memorial Hall (Sendai) |
Estimating Complex Radiation Patterns of MIMO Antenna Using Load Modulation Masatoshi Saitoh (Tohoku Univ.), Naoki Honma (Iwate Univ.), Qiang Chen (Tohoku Univ.) |
Complex radiation patterns is one of the figure of merit for MIMO~{(Multiple-Input Multiple-Output)} antenna. In general... [more] |
|
AP, PEM (Joint) |
2013-10-04 14:35 |
Ishikawa |
Kanazawa Univ. Satellite-Plaza |
Experimental Evaluation of Passive MIMO Transmission Using Load Modulation Keisuke Terasaki, Naoki Honma (Iwate Univ.) AP2013-99 |
In this report, we present experimental results of passive Multiple-Input Multiple-Output (MIMO) transmission which uses... [more] |
AP2013-99 pp.65-68 |
AP |
2013-08-30 15:50 |
Kanagawa |
Yokosuka |
Interference Control Method Between Primary and Secondary System Using load Modulation Takuma Ito, Naoki Honma, Keisuke Terasaki (Iwate Univ.), Kentaro Nishimori (Niigata Univ.), Yoshitaka Tsunekawa (Iwate Univ.) AP2013-79 |
Controlling interference from the secondary system (SS) to the receiver of the primary system (PS) is important issues w... [more] |
AP2013-79 pp.95-100 |
AP, SAT (Joint) |
2012-07-27 14:30 |
Hokkaido |
Hokkaido Univ. |
Characteristic evaluation of Passive MIMO Transmission Using Load Modulation Keisuke Terasaki, Naoki Honma (Iwate Univ.) AP2012-60 |
In this paper, we propose multi-level modulation in the passive Multiple-Input Multiple-Output (MIMO) transmission that ... [more] |
AP2012-60 pp.173-178 |
SIP, EA |
2004-09-16 - 2004-09-17 |
Shimane |
Matsue College of Technology |
Spectral Analysis of Load Switching Signal From Contactless IC Card Sadahiko Nakano, Yoshimitsu Ohtani (NTT SP Lab.) |
This paper analyses the spectrum of the load switching signal from a contactless IC card. First, we expand the ideal lo... [more] |
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