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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MW | 2022-11-15 10:50 |
Nagasaki | Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
Continuous Class-F/Inverse-Class-F 2-GHz-Band GaN-HEMT Power Amplifiers Using 1-Port CRLH Transmission Lines Eri Tsuji, Soshi Aonuma, Shinichi Tanaka (Shibaura Inst. of Tech.)  MW2022-109 |
Highly efficient amplifiers capable of continuously processing harmonics over a wide bandwidth are attracting attention ... [more] | MW2022-109 pp.1-6 |
| MW | 2022-11-15 11:15 |
Nagasaki | Fukue-Bunka-Kaikan (Primary: On-site, Secondary: Online) |
Bandwidth Improvement of Power Amplifier Using Dispersion Engineering of 1-Port CRLH Transmission Line Ryota Mogami, Eri Tsuji, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2022-110 |
In our previous paper, we reported a power amplifier using a 1-port CRLH transmission line (TL) as a harmonic tuning cir... [more] | MW2022-110 pp.7-12 |
| MW | 2020-11-19 13:05 |
Online | Online | Harmonic tuning circuit using 1-port CRLH transmission line and its application to power amplifiers Naoaki Iisaka, Shinichi Tanaka (SIT) MW2020-65 |
With the spread of next-generation mobile communication systems, high efficiency and miniaturization of base station amp... [more] | MW2020-65 pp.1-5 |
| MW | 2019-11-14 17:05 |
Okinawa | Minami Daido Villa. Tamokuteki Koryu Center | Multifunctional CRLH Transmission Line Stubs for Compact Class-E/Inverse-Class-E Power Amplifiers Hirotaka Asami, Shinichi Tanaka (Shibaura Inst. of Tech.) MW2019-109 |
This report presents CRLH transmission line (TL) stubs for realizing compact high-efficiency class-E / inverse class-E p... [more] | MW2019-109 pp.53-58 |
| MW | 2018-11-15 10:25 |
Nagasaki | Fukue Cultural Hall | Miniaturization of Harmonic Impedance Transformer and its Application to Class-F Amplifiers Kento Saiki, Shinichi Tanaka (Shibaura Inst. of Tech.), Ryo Ishikawa, Kazuhiko Honjo (Univ. of Electro-Communications) MW2018-93 |
A new method of miniaturizing the quarter-wavelength ($lambda$/4) harmonic impedance (Z) transformer in a class-F amplif... [more] | MW2018-93 pp.7-12 |
| MW, EMCJ, EST, IEE-EMC [detail] | 2017-10-20 10:25 |
Akita | Yupopo | A Quadrature-modulation EPWM Transmitter That Uses Co-phase Sine Wave Carriers for I/Q Channel and a 90° Hybrid as a Signal Combiner Tomoaki Morita, Ryo Sakai, Yohtaro Umeda (Tokyo Univ. of Science), Yusuke Kozawa (Ibaraki Univ.) EMCJ2017-45 MW2017-97 EST2017-60 |
Quadrature-modulation (QM) envelope-pulse-width modulation (EPWM) transmitter with a 180° hybrid as a power combiner has... [more] | EMCJ2017-45 MW2017-97 EST2017-60 pp.105-110 |
| MW, ICD | 2017-03-03 09:25 |
Okayama | Okayama Prefectural Univ. | Quadrature-modulation Envelope-pulse-width-modulation Transmission System Using Quadrature Polarized Waves Ryo Sakai, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2016-204 ICD2016-134 |
This paper presents quantitative evaluation of power efficiency decrese by not satisfying the zero current switching (ZC... [more] | MW2016-204 ICD2016-134 pp.89-94 |
| MW | 2014-11-21 10:55 |
Nagasaki | Nagasaki Univ. | Quadrature-modulation Transmitter with Tri-level Delta-sigma Modulation for Generating Bi-level EPWM Signal Takashi Noda, Wataru Someya, Yoshiharu Iikura, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2014-139 |
This paper presents a quadrature-modulation (QM) envelope-pulse-width-modulation (EPWM) transmitter with delta-sigma tri... [more] | MW2014-139 pp.83-88 |
| MW | 2014-03-05 15:25 |
Ehime | Ehime University | Modulation Accuracy of a Polar-modulation EPWM Transmitter with a NMOS-type Class-D Power Amplifier Yoshiharu Iikura, Yohtaro Umeda, Yusuke Kozawa (Tokyo Univ. of Science) MW2013-221 |
Switching-mode power amplifiers for wireless communication systems demand high power efficiency and linearity. Of the av... [more] | MW2013-221 pp.139-144 |
| CAS, NLP | 2011-10-21 10:15 |
Shizuoka | Shizuoka Univ. | Simulation Investigation of a 60-GHz Differential Amplifier Design Willy Hioe (Hitachi) CAS2011-51 NLP2011-78 |
Several differential amplifiers for 60-GHz applications reported since 2008 had superior PAE performances and small chip... [more] | CAS2011-51 NLP2011-78 pp.107-111 |
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