Zobrazeno 1 - 10
of 24
pro vyhledávání: '"Wonsub Lim"'
Publikováno v:
Sensors, Vol 18, Iss 7, p 2103 (2018)
This paper presents a new antenna proximity sensor for mobile terminals based on the measured reflection coefficient using a bidirectional coupler which is positioned between the main antenna and the front-end module. Using the coupled forward and re
Externí odkaz:
https://doaj.org/article/35e28575f6694c0ca872f824f5bb3812
Publikováno v:
IEEE Solid-State Circuits Letters. 6:117-120
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1328520034e7d535a37be0a156a473b2
https://doi.org/10.1109/lssc.2023.3267715
https://doi.org/10.1109/lssc.2023.3267715
Autor:
Moon-Kyu Cho, John D. Cressler, Sunil G. Rao, Adilson S. Cardoso, Clifford D. Cheon, Wonsub Lim
Publikováno v:
IEEE Transactions on Circuits and Systems II: Express Briefs. 69:744-748
This paper presents a wideband, low insertion loss, high attenuation range digital step attenuator (DSA) implemented using SiGe HBTs. In a switched-type topology, the off-state capacitances (COFF) in both reference and attenuation states cause differ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c85cb452206965908171eb824a09cbb9
https://doi.org/10.1109/tcsii.2021.3111177
https://doi.org/10.1109/tcsii.2021.3111177
Publikováno v:
Sensors, Vol 18, Iss 7, p 2103 (2018)
Sensors (Basel, Switzerland)
Sensors
Volume 18
Issue 7
Sensors (Basel, Switzerland)
Sensors
Volume 18
Issue 7
This paper presents a new antenna proximity sensor for mobile terminals based on the measured reflection coefficient using a bidirectional coupler which is positioned between the main antenna and the front-end module. Using the coupled forward and re
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a3e944b7424de3fd9a42793d0dbe325e
http://www.mdpi.com/1424-8220/18/7/2103
http://www.mdpi.com/1424-8220/18/7/2103
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 25:895-902
This paper presents a 2-stage CMOS power amplifier for the 1.75 GHz band using a 0.18-μm CMOS process. Using ADS simulation, a power gain of 28 dB and an efficiency of 45 % at an 1dB compression point of 27 dBm were achieved. The implemented CMOS po
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cc4f807ca423b44b11cecc07cff41c39
https://doi.org/10.5515/kjkiees.2014.25.9.895
https://doi.org/10.5515/kjkiees.2014.25.9.895
Publikováno v:
Korean Journal of Chemical Engineering. 31:1522-1531
Multi-stage expander refrigeration cycles were proposed and analyzed in order to develop an efficient natural gas liquefaction process. The proposed dual and cascade expander processes have high efficiency and the potential for larger liquefaction ca
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::86af265856c212ff70f6b2c0bbff9fbf
https://doi.org/10.1007/s11814-014-0098-z
https://doi.org/10.1007/s11814-014-0098-z
Publikováno v:
Industrial & Engineering Chemistry Research. 53:1973-1985
One of the most important challenges in a natural gas liquefaction plants is to improve the plant energy efficiency. In particular, if part of the natural gas is used as a fuel gas or the liquefaction ratio is taken into account as a design factor in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b08ea84aa60cdcba4a184ad1d9ec2083
https://doi.org/10.1021/ie4003427
https://doi.org/10.1021/ie4003427
Publikováno v:
Journal of the Korean Institute of Gas. 17:27-32
Natural gas liquefaction process which is operated under cryogenic condition spends large amount of energy. Most of energy in the natural gas liquefaction process is consumed by compressors. Therefore, minimizing energy consumption of compressors is
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54777e6d880f53d15e55e33d50380cd3
https://doi.org/10.7842/kigas.2013.17.3.27
https://doi.org/10.7842/kigas.2013.17.3.27
Publikováno v:
Korean Journal of Chemical Engineering. 30:1368-1374
This paper focuses on the development of an integrated risk assessment system to increase the safety of gas refinery plants. This integration is important in managing the design and the operation of chemical plants and it requires significant time, e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa7fb52eec7a631d4abe755dac35eba1
https://doi.org/10.1007/s11814-013-0057-0
https://doi.org/10.1007/s11814-013-0057-0
Publikováno v:
Journal of Molecular Liquids. 181:55-61
The physicochemical properties such as densities and speeds of sound have been measured for Jatropha Curcas biodiesel (1) + ethan-1-ol or propan-1-ol (2) binary mixtures over entire composition range at T = (288.15 to 308.15) K and atmospheric pressu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2d1590ca89ed7e0d3fa87881b0ed1b3
https://doi.org/10.1016/j.molliq.2013.01.026
https://doi.org/10.1016/j.molliq.2013.01.026