Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Seunghoon Jee"'
Sensitivity Improvement of Extremely Low Light Scenes with RGB-NIR Multispectral Filter Array Sensor
Autor:
Seunghoon Jee, Moon Gi Kang
Publikováno v:
Sensors, Vol 19, Iss 5, p 1256 (2019)
Recently, several red-green-blue near-infrared (RGB-NIR) multispectral filter arrays (MFAs), which include near infrared (NIR) pixels, have been proposed. For extremely low light scenes, the RGB-NIR MFA sensor has been extended to receive NIR light,
Externí odkaz:
https://doaj.org/article/3788b7b9572046ed930d31f12eb18b56
Publikováno v:
Sensors, Vol 18, Iss 5, p 1647 (2018)
Recently, several red-green-blue-white (RGBW) color filter arrays (CFAs), which include highly sensitive W pixels, have been proposed. However, RGBW CFA patterns suffer from spatial resolution degradation owing to the sensor composition having more c
Externí odkaz:
https://doaj.org/article/054025f2adcb40f8a9598bf0bce6a4c5
Autor:
Moon Gi Kang, Seunghoon Jee
Publikováno v:
Journal of the Institute of Electronics and Information Engineers. 55:90-96
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d87b9a914b07381e16fac6425829b63e
https://doi.org/10.5573/ieie.2018.55.1.90
https://doi.org/10.5573/ieie.2018.55.1.90
Autor:
Byoungjun Jeon, Boseong Jeong, Seunghoon Jee, Huang Yan, Youngmin Kim, Gee Ho Park, Jungah Kim, Maierdanjing Wufuer, Jin Xian, Sang Wha Kim, Tae Hyun Choi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a5423f73d1a4ba676bf9736d23b6e02
https://doi.org/10.2196/preprints.11472
https://doi.org/10.2196/preprints.11472
Autor:
Cheol Ho Kim, Bumman Kim, Junghwan Son, Seunghoon Jee, Juyeon Lee, Junghwan Moon, Seokhyeon Kim
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 63:2802-2810
A power amplifier (PA) for a femto-cell base station should be highly efficient and small. The efficiency for amplification of a high peak-to-average power ratio (PAPR) signal is improved by designing an asymmetric Doherty power amplifier (DPA). From
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cfc718686e4a770ff41f11d80277158
https://doi.org/10.1109/tmtt.2015.2442973
https://doi.org/10.1109/tmtt.2015.2442973
Publikováno v:
Journal of electromagnetic engineering and science. 14:399-404
A power amplifier (PA) for a femto-cell base station should be highly efficient, linear and small. The efficiency for amplification of a high peak-to-average power ratio (PAPR) signal was improved by designing an asymmetric Doherty PA (DPA). The line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::190aa7c08c08ca53d09d564c60ed09dc
https://doi.org/10.5515/jkiees.2014.14.4.399
https://doi.org/10.5515/jkiees.2014.14.4.399
Autor:
Bumman Kim, Bonghyuk Park, Juyeon Lee, Cheol Ho Kim, Seunghoon Jee, Seokhyeon Kim, Yunsik Park
Publikováno v:
IEEE Microwave and Wireless Components Letters. 25:187-189
This paper presents an approach to maximize the gain and power-added efficiency (PAE) of a Doherty power amplifier (PA) using a 0.25 $\mu$ m GaN pHEMT. The conventional carrier PA has an input matching for the ${R}_{\rm OPT}$ load and does not delive
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4432998ea9964a4cabf32f437bb216dc
https://doi.org/10.1109/lmwc.2015.2390536
https://doi.org/10.1109/lmwc.2015.2390536
Publikováno v:
IEEE Microwave and Wireless Components Letters. 25:136-138
This letter presents an approach to maximize the output power and efficiency of a Doherty power amplifier (PA). The conventional carrier PA having $2R_{OPT}$ match, used in a symmetric Doherty PA, does not deliver the saturated high efficiency at the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::928bcf3524e32a64bb4f22accca00f93
https://doi.org/10.1109/lmwc.2014.2373637
https://doi.org/10.1109/lmwc.2014.2373637
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 61:1620-1627
We have proposed two methods of enhancing efficiency of an envelope tracking power amplifier (ET PA) from an interlock operation. The first is the utilization of sinking current. The sinking current is a critical efficiency reduction factor since it
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b868d71d17f7d68e3ba84e6971cd17e
https://doi.org/10.1109/tmtt.2013.2248375
https://doi.org/10.1109/tmtt.2013.2248375
Publikováno v:
IEEE Microwave and Wireless Components Letters. 24:263-265
A novel 2.14-GHz Doherty power amplifier (PA) was designed and fabricated using a 0.25- μm GaN on SiC monolithic microwave integrated circuit (MMIC), to build small-cell base stations. To reduce the size and loss, lumped passive elements were employ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9617b4883356e9469f363bd84d7b03a3
https://doi.org/10.1109/lmwc.2014.2299536
https://doi.org/10.1109/lmwc.2014.2299536