Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Jaehyuk Yoon"'
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 31:79-84
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8cc94c09380b4745662a649093539aa7
https://doi.org/10.5515/kjkiees.2020.31.1.79
https://doi.org/10.5515/kjkiees.2020.31.1.79
Publikováno v:
2019 IEEE Conference on Antenna Measurements & Applications (CAMA).
In this paper, we present a position estimation of two targets using compensated high resolution range profiles (HRRPs) obtained from 3 high resolution radars. Because radar tracking range is only a distance between a radar and reflected surface of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::326aae93308e39e9bcd1effa39fe19c0
https://doi.org/10.1109/cama47423.2019.8959746
https://doi.org/10.1109/cama47423.2019.8959746
Publikováno v:
Journal of Aerosol Science. 90:124-135
The fractal particle concept was applied to the real-time light transmission spectroscopy (RTLTS), an in-situ particle-size distribution measurement technique. The number of fractal-shaped particles in diesel engine exhaust gases was measured under t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e2c69b27b38fc02083e686a1c38f5b9
https://doi.org/10.1016/j.jaerosci.2015.07.009
https://doi.org/10.1016/j.jaerosci.2015.07.009
Autor:
Changkun Park, Jaehyuk Yoon
Publikováno v:
Microwave and Optical Technology Letters. 56:684-689
In this study, we propose a 5-GHz differential RF CMOS low noise amplifier (LNA) with electrostatic discharge (ESD) protection method in the RF input and output using spiral transformers. Spiral transformers are used as the ESD protection elements as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a069fb40fb30288ee8c15aa7cfe65803
https://doi.org/10.1002/mop.28133
https://doi.org/10.1002/mop.28133
Publikováno v:
Aerosol Science and Technology. 47:1092-1100
We developed an improved particle measurement spectroscopic technique, real-time laser transmission spectroscopy (RTLTS), to detect the number-weighted distribution of particles in real time. The measurement system used a deuterium–tungsten lamp fo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e847246e16bdb143407e594d4c155cc8
https://doi.org/10.1080/02786826.2013.824551
https://doi.org/10.1080/02786826.2013.824551
Publikováno v:
Journal of Aerosol Science. 42:419-427
Recently, the diesel engine particulate matter (PM) emission standard was changed from being based on mass to being based on both number and mass. However, it is difficult to determine the mass- and number-weighted distributions simultaneously becaus
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9cedd748db4067cce79259e0065302b3
https://doi.org/10.1016/j.jaerosci.2011.03.005
https://doi.org/10.1016/j.jaerosci.2011.03.005
Autor:
Jaehyuk Yoon, Changkun Park
Publikováno v:
IEEE Microwave and Wireless Components Letters. 24:605-607
In this study, we design a differential low-noise amplifier (LNA) using a 0.18- μm RF CMOS process. To improve its linearity, we propose a harmonic rejection technique using RC feedback at the gain stage. The third harmonic component of the drain no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::355bca6a15f196227d5c2e466430e4a3
https://doi.org/10.1109/lmwc.2014.2326518
https://doi.org/10.1109/lmwc.2014.2326518
Autor:
Jaehyuk Yoon, Changkun Park
Publikováno v:
IEEE Microwave and Wireless Components Letters. 24:403-405
In this study, we designed a 5 GHz low-noise amplifier (LNA) with a differential structure using 0.18 $\mu{\rm m}$ RFCMOS technology. An input balun is embedded into the LNA to enhance the gain, minimize the noise figure (NF), and miniaturize the ove
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa9a4007283279557a6ce86a49d080c7
https://doi.org/10.1109/lmwc.2014.2313472
https://doi.org/10.1109/lmwc.2014.2313472
Publikováno v:
Journal of Aerosol Science. 41:531-540
The emission regulations for diesel particulate matter (PM) are becoming increasingly strict. The focus of regulations is turning to reducing the number of nanosized particles as well as the total mass. A more precise measurement technique for partic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a69490e2240a96c5f76d051963d6f7c
https://doi.org/10.1016/j.jaerosci.2010.03.003
https://doi.org/10.1016/j.jaerosci.2010.03.003