Zobrazeno 1 - 9
of 9
pro vyhledávání: '"You-Huei Chen"'
Publikováno v:
IEEE Access, Vol 7, Pp 178788-178797 (2019)
The pulse-modulated polar transmitter (PMPT) uses radio-frequency (RF) phase modulated signal with pulse-width modulated envelope to drive a power amplifier (PA) as a switch to achieve high linearity and high efficiency. However, as the signal bandwi
Externí odkaz:
https://doaj.org/article/0054793a4410413e961b870951ec7471
Autor:
You-Huei Chen, 陳祐翬
105
There are power amplifiers in the cell phones or base stations for amplifying signals in a wireless communication system. The distortions appear when a power amplifier operating in the region with higher output power. But designing for high
There are power amplifiers in the cell phones or base stations for amplifying signals in a wireless communication system. The distortions appear when a power amplifier operating in the region with higher output power. But designing for high
Externí odkaz:
http://ndltd.ncl.edu.tw/handle/mnwp9c
Publikováno v:
IEEE Microwave and Wireless Components Letters. 32:1359-1362
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5f0997e51db113f415660e1d930d5745
https://doi.org/10.1109/lmwc.2022.3182662
https://doi.org/10.1109/lmwc.2022.3182662
Autor:
Shuo-Heng Xu, Yu-Chen Chang, Chun-Wei Chang, You-Huei Chen, Shu-Chen Lin, Jau-Horng Chen, Joseph Staudinger
Publikováno v:
2022 Asia-Pacific Microwave Conference (APMC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2bbe6f2b2f6530153db82001116873d5
https://doi.org/10.23919/apmc55665.2022.10000038
https://doi.org/10.23919/apmc55665.2022.10000038
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 67:1894-1898
This brief presents a pulse-modulated polar transmitter using direct digital synthesis (DDS) for 5G NR mobile phone applications. In contrast to the conventional radio-frequency transmitter that requires high-resolution digital-to-analog converters (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7748fc0250d0d35db126b20527f04505
https://doi.org/10.1109/tcsii.2019.2956978
https://doi.org/10.1109/tcsii.2019.2956978
Publikováno v:
IEEE Access, Vol 7, Pp 178788-178797 (2019)
The pulse-modulated polar transmitter (PMPT) uses radio-frequency (RF) phase modulated signal with pulse-width modulated envelope to drive a power amplifier (PA) as a switch to achieve high linearity and high efficiency. However, as the signal bandwi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4c076534b007dc5ab524da22b26e47a9
https://ieeexplore.ieee.org/document/8930483/
https://ieeexplore.ieee.org/document/8930483/
Publikováno v:
2020 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR).
This paper presents a study of thermal-memory effect reduction for multi-level pulse-modulated polar transmitters (PMPTs). PMPTs using single-level pulse modulation have shown to have minimal memory effects even when operated at high power levels. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47812ab64b85041cdac2c00da3f7b757
https://doi.org/10.1109/pawr46754.2020.9036007
https://doi.org/10.1109/pawr46754.2020.9036007
Publikováno v:
2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR).
This paper presents a new transmitter architecture for wideband mobile phone applications. By using a low-power high-speed low-resolution digital-to-analog converter (DAC), aliasing-free digital pulse-width modulation (AFDPWM), and pulse-modulated po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ffb7211e1039e33e4ccfeba0328a2212
https://doi.org/10.1109/pawr.2019.8708734
https://doi.org/10.1109/pawr.2019.8708734
Publikováno v:
2019 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications (PAWR).
In this paper, a pulse-modulated power-recycling polar transmitter with dual-phase aliasing-free digital pulsewidth modulation (DPWM) for 4G long term evolution (LTE) is presented. This implementation is capable of achieving high linearity and effici
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d17de4a50588e46e8cd18fdd8f1a244
https://doi.org/10.1109/pawr.2019.8708733
https://doi.org/10.1109/pawr.2019.8708733