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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| AP | 2023-10-20 10:55 |
Iwate | Iwate University (Primary: On-site, Secondary: Online) |
Consideration for mutual impedance and mutual radiation resistance of loop antenna arrays Nakato Kojima, Nobuyoshi Kikuma (NITech)  AP2023-123 |
Mutual coupling is a critical consideration in the design of an array antenna. Mutual coupling is expressed as a mutual... [more] |
AP2023-123 pp.133-138 |
| MW | 2022-12-16 11:25 |
Mie | Jingu-Kaikan(Ise) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Increasing Efficiency of Power Amplifiers for Microwave Power Transfer by PA- Antenna Co-design Shinji Hara, Noriyuki Tanba (Nagoya Univ.), Hiroshi Hirayama (Nitech) MW2022-144 |
The efficiency is important in power amplifiers. For wireless communication applications which transfer signals, there a... [more] | MW2022-144 p.64 |
| AP | 2022-10-20 10:55 |
Gifu | GIFU CITY CULTURE CENTER (Primary: On-site, Secondary: Online) |
Consideration on Mutual Coupling and Mutual Radiation Resistance of Array Antenna Nakato Kojima, Koichi Miyazaki (MELCO) AP2022-136 |
The mutual impedance and the mutual radiation resistance of the array antenna are expressed, using the fields expansion ... [more] | AP2022-136 pp.181-186 |
| US | 2021-02-22 17:40 |
Online | Online | Detection method of waterdrops on steel plate using ultrasonic oscillation Tomonori Kimura (MELCO), Akihiro Sakamoto (RSEC) US2020-76 |
A method to detect waterdrops on a steel plate by using ultrasonic oscillation is shown. Two angle beam probes are set ... [more] | US2020-76 pp.45-48 |
| EA, ASJ-H, EMM | 2020-11-20 09:00 |
Online | Online | [Poster Presentation]
Sound Field Recording Using Distributed Microphone Arrays Based on a Virtual Sphere Model Kosuke Katada, Shuichi Sakamoto (Tohoku Univ.) EA2020-23 EMM2020-38 |
Higher-order Ambisonics (HOA) is a sound field synthesis method based on wave equation. Sound field recorded at certain... [more] |
EA2020-23 EMM2020-38 pp.9-14 |
| EA, ASJ-H, ASJ-AA | 2019-07-17 11:25 |
Hokkaido | SAPPORO COMMUNITY PLAZA | Directivity synthesis using multipole sources based on higher spherical harmonic expansion
-- application to FDTD method -- Daichi Sakamoto, Takao Tsuchiya (Doshisha Univ.) EA2019-14 |
In this paper, a method to obtain arbitrary directivity patterns by FDTD method is considered, focusing on the directivi... [more] | EA2019-14 pp.71-76 |
| US | 2019-05-20 16:15 |
Tokyo | Improvement of degradation due to echo distortion of ultrasound range super-resolution imaging with carrier frequency sweep Nguyen Chi Hai, Norio Tagawa (Tokyo Metro. Univ.), Masasumi Yoshizawa (Tokyo Metro. College of Tech.), Takasuke Irie (Microsonic) US2019-15 |
We have implemented this study by evaluating the effect of two things on ultrasound imaging. The first one is proposing ... [more] | US2019-15 pp.31-34 |
|
| US | 2019-05-20 17:05 |
Tokyo | Output Signal Component of Optical Fiber Probe Hydrophone under Cavitation Yoshikazu Koike, Masatoshi Ichikawa, Sou Takeuchi, Nariyuki Satoh (Shibaura Inst. of Tech.) US2019-17 |
Authors proposed that a reflection type fiber optic probe hydrophone (FOPH) is suitable for the absolute sound pressure ... [more] | US2019-17 pp.41-46 |
|
| EE, IEE-SPC (Joint) |
2019-03-07 14:40 |
Okinawa | Evaluation of Detection Accuracy based on The Influence of Power Distortion in System Protection Relay Rukai Sun, Nishimura Kazunori (Hiroshima Ins. Tech.), Yonemoto Kazuhiro, Hiroi Hideyuki, Tsuchida Takashi (KDK) EE2018-58 |
In recent years, ground fault accidents such as electric shock and fire have occurred frequently due to the rapid rise i... [more] | EE2018-58 pp.1-6 |
|
| EA, US (Joint) |
2019-01-22 14:00 |
Kyoto | Doshisha Univ. | [Poster Presentation]
Binaural signal reproduction with perception of movement using spherical microphone array Takayuki Obayashi, Yoichi Haneda (UEC) EA2018-96 |
In recent years, a service has been proposed to improve immersion by adding a binaural signal to the omnidirectional ima... [more] | EA2018-96 pp.19-24 |
| ICD, CPSY, CAS | 2018-12-23 09:30 |
Okinawa | [Poster Presentation]
Digital Reduction of Third-Order Distortions in Time-Interleaved A/D Converters Keisuke Miyakoshi, Takao Kihara, Tsutomu Yoshimura (OIT) CAS2018-106 ICD2018-90 CPSY2018-72 |
Harmonic distortions appear at the output of an A/D converter (ADC) due to its nonlinearity, degrading the spurious-free... [more] | CAS2018-106 ICD2018-90 CPSY2018-72 pp.107-108 |
|
| EA, ASJ-H, EMM, IPSJ-MUS [detail] | 2018-11-21 13:30 |
Ishikawa | Hotel Koshuen | Directional pattern analysis of late reverberation using spherical microphone array Yuto Izumi, Makoto Otani (Kyoto Univ.) EA2018-65 EMM2018-65 |
Arrival direction of reflected sound is one of important factors to characterize spatial impression. An impulse response... [more] | EA2018-65 EMM2018-65 pp.13-18 |
| MWP (2nd) |
2018-08-06 | Shimane | Shimane Prefectural Convention Center (Matsue City) | Parallel Mach-Zehnder Modulator Characterization Method using Simultaneous Transcendental Equations Hugo S. C. Freire (Waseda Univ.), Keizo Inagaki (NICT), Tetsuya Kawanishi (Waseda Univ.) |
Parallel Mach-Zehnder optical modulators have imperfections that affect the generation of high-order modulation signals.... [more] | |
| RCS | 2018-04-23 11:20 |
Yamaguchi | Hotel New Tanaka, Yuda Onsen | Optimization of Beam Patterns for Analog Beamforming of Single User Massive MIMO Transmissions Maki Arai, Kei Sakaguchi, Kiyomichi Araki (Tokyo Inst. of Tech.) RCS2018-5 |
This paper proposes optimal beam patterns of analog beamforming for SU (Single User) massive MIMO (Multi-Input Multi-Out... [more] | RCS2018-5 pp.25-30 |
| MW | 2017-12-20 11:10 |
Tokyo | MHz-Band Multi-Harmonic Active Source-Pull System for High-Efficiency Transistor Rectifier Design Minato Machida, Ryo Ishikawa, Kazuhiko Honjo (UEC) MW2017-157 |
To estimate an optimum harmonic impedance for an intrinsic part of transistor, a MHz-band harmonics active load-pull sys... [more] | MW2017-157 pp.89-93 |
|
| WPT (2nd) |
2017-12-09 - 2017-12-11 |
Overseas | National University of Singapore(AWPT2017) | [Short Paper]
Harmonic-Recycling Rectifier with Efficiency Improvement and DC Voltage Boost Tung Ngo, Zaw Thet Aung, Yongxin Guo (National Univ. of Singapore) |
Conventional rectifier designs for wireless power transfer application usually suppress the harmonics generated by diode... [more] | |
| MW, EMCJ, EST, IEE-EMC [detail] | 2017-10-20 16:20 |
Akita | Yupopo | A Verification of Accuracy Improvement Method of Frequency Detection Using Harmonics Jun Shimokawatoko, Hiroyuki Mizutani, Kenichi Tajima (Mitsubishi Electric Corp.) EMCJ2017-57 MW2017-109 EST2017-72 |
This paper reports improvement of the frequency detection method by using 1 to Mth harmonics. In the proposed method, fr... [more] | EMCJ2017-57 MW2017-109 EST2017-72 pp.167-170 |
| SP, SIP, EA | 2017-03-02 15:45 |
Okinawa | Okinawa Industry Support Center | Speech enhancement with phase reconstruction using phase distortion in harmonic frequency Yukoh Wakabayashi, Takahiro Fukumori, Masato Nakayama, Takanobu Nishiura, Yoichi Yamashita (Ritsumeikan Univ.) EA2016-145 SIP2016-200 SP2016-140 |
Conventionally the speech enhancement in noisy environment is widely studied by modifying only the amplitude spectrum of... [more] | EA2016-145 SIP2016-200 SP2016-140 pp.351-356 |
| EE | 2017-01-26 14:45 |
Nagasaki | Nagasaki University | [Poster Presentation]
Simple PWM strategy of Matrix Conveters for Reducing Output Voltage Harmonics Kazuki Nohara, Takaharu Takeshita (Nagoya Institute of Technology) EE2016-75 |
This paper presents simple PWM strategy of a matrix converter(MC) in minimal number of commutations for reducing output ... [more] | EE2016-75 pp.139-144 |
| EA, US (Joint) |
2017-01-25 13:00 |
Kyoto | Doshisha Univ. | [Poster Presentation]
Listening-area-informed sound field reproduction
-- A case study on arbitrary configuration and directivity of loudspeakers -- Natsuki Ueno, Shoichi Koyama, Hiroshi Saruwatari (Univ. Tokyo) EA2016-69 |
A sound field reproduction method using prior information on listening areas is proposed. Most current methods aim to re... [more] | EA2016-69 pp.7-12 |
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