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 Conference Papers (Available on Advance Programs)  (Sort by: Date Descending)
 Results 1 - 11 of 11  /   
Committee Date Time Place Paper Title / Authors Abstract Paper #
MW 2024-11-14
13:55
Okinawa JA Kume-jima Yuntaku house (Okinawa, Online)
(Primary: On-site, Secondary: Online)
Improvement of Output Back-Off Efficiency by Doherty-Outphasing Mixed Operation for 4.7-GHz-Band GaN HEMT Power Amplifier with Miniature Combiner
Yudai Shiraishi, Kazuhiko Honjo, Ryo Ishikawa (UEC) MW2024-130
An outphasing power amplifier is one of high-efficiency load-modulation amplifiers for wide-dynamic-range digitally modu... [more] MW2024-130
pp.40-45
MW 2024-11-15
11:25
Okinawa JA Kume-jima Yuntaku house (Okinawa, Online)
(Primary: On-site, Secondary: Online)
Outphasing Power Amplifier with Switching Reactance Compensation Circuit
Yuki Takagi, Takashi Hirakawa, Yoshichika Ohta, Naoki Hasegawa (SB) MW2024-137
In this paper, we propose a method to switch the reactance compensation circuit in the Chirex combiner, which is a part ... [more] MW2024-137
pp.69-74
MW, EMT, OPE, MWPTHz, EST, IEE-EMT [detail] 2024-07-12
10:40
Hokkaido otaru-shimin-kaikan (Hokkaido, Online)
(Primary: On-site, Secondary: Online)
Two-Power-Level Impedance Match for Asymmetric Outphasing Amplifier
Takashi Maehata, Shuichi Nishimura, Takashi Sumiyoshi (SEI) EMT2024-37 MW2024-61 OPE2024-40 EST2024-38 MWPTHz2024-44
Outphasing amplifiers (OPAs) have attracted attention as amplifiers that achieve high efficiency from saturated output t... [more] EMT2024-37 MW2024-61 OPE2024-40 EST2024-38 MWPTHz2024-44
pp.152-157
MW 2024-03-01
10:15
Okayama Okayama Prefectural University (Okayama, Online)
(Primary: On-site, Secondary: Online)
28-GHz-Band GaN HEMT Outphasing Amplifier MMIC Designed by Considering Insertion Loss at Dual-Power-Level Optimization
Taiki Kobayashi, Kazuhiko Honjo, Ryo Ishikawa (UEC) MW2023-189
The development of the fifth generation mobile communications (5G) will use higher frequencies such as millimeter wave b... [more] MW2023-189
pp.74-77
WPT 2023-03-16
11:50
Kyoto Kyoto-Univ. (Uji campus) (Kyoto, Online)
(Primary: On-site, Secondary: Online)
Operating Analysis of Doherty-Outphasing Hybrid Power Amplifier on Saturation Region
Daisuke Yasunobu, Ren Furumoto, kenjirou Nishikawa (Kagoshima Univ.) WPT2022-33
In WiCoPT systems, which can transmit information and power simultaneously, modulated signals with high PAPR are used. T... [more] WPT2022-33
pp.14-18
MW 2022-12-15
15:25
Mie Jingu-Kaikan(Ise) (Mie, Online)
(Primary: On-site, Secondary: Online)
Two-Power-Level Impedance Match for Out-phasing Amplifier
Takashi Maehata, Takashi Sumiyoshi (SEI), Ren Furumoto, Kenjiro Nishikawa (Kagoshima University) MW2022-136
The outphasing amplifier (OPA) has been attracting attention as an amplifier that achieves high efficiency from saturate... [more] MW2022-136
pp.27-32
WPT
(2nd)
2022-12-05
- 2022-12-06
Kyoto Uji Obaku Plaza Kihada Hall, Uji Campus, Kyoto University (Kyoto, Online)
(Primary: On-site, Secondary: Online)
Hybrid power amplifier for WiCoPT WPT system
Ren Furumoto, Daisuke Yasunobu, Kenjiro Nishikawa (Kagoshima Univ.)
WiCoPT system, which can transfer data and power simultaneously, employs modulated signals. Therefore, a transmitter of ... [more]
MW 2022-11-15
13:00
Nagasaki Fukue-Bunka-Kaikan (Nagasaki, Online)
(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
MW 2022-11-15
13:25
Nagasaki Fukue-Bunka-Kaikan (Nagasaki, Online)
(Primary: On-site, Secondary: Online)
Doherty-Outphasing Hybrid power amplifier for WiCoPT WPT system
Ren Furumoto, Daisuke Yasunobu, Kenjiro Nishikawa (Kagoshima Univ.) MW2022-112
WiCoPT system, which can transfer data and power simultaneously, employs modulated signals. Therefore, a transmitter of ... [more] MW2022-112
pp.19-24
MW 2020-12-10
13:15
Kanagawa (Kanagawa, Online)
(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
ICD, CPSY, CAS 2018-12-23
09:30
Okinawa (Okinawa) [Poster Presentation] FPGA Implementation of Digital Transmitters with RF Pulse-width Modulation
Kazuto Yoshida, Takao Kihara, Tsutomu Yoshimura (OIT) CAS2018-105 ICD2018-89 CPSY2018-71
Common RF transmitters consist of high-cost analog circuits and linear power amplifiers (PA) consuming much power. We ca... [more] CAS2018-105 ICD2018-89 CPSY2018-71
pp.105-106
 Results 1 - 11 of 11  /   
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