Zobrazeno 1 - 10
of 157
pro vyhledávání: '"Hyunchol Shin"'
Publikováno v:
Sensors, Vol 24, Iss 4, p 1087 (2024)
A 28 GHz digitally controlled 6-bit phase shifter with a precision calibration technique in GaN high-electron mobility transistor (HEMT) technology is presented for Ka-band phased-array systems and applications. It comprises six stages, in which stag
Externí odkaz:
https://doaj.org/article/8b263b1e6bf94554b401aaf73841ca77
Publikováno v:
Sensors, Vol 22, Iss 21, p 8246 (2022)
A 24 GHz millimeter-wave direct-conversion radio-frequency (RF) receiver with wide-range and precise I/Q mismatch calibration is designed in 65 nm CMOS technology for radar sensor applications. The CMOS RF receiver is based on a quadrature direct-con
Externí odkaz:
https://doaj.org/article/70edae7004b54e09b339170446f0e26a
Autor:
Hyunchol Shin, Hyukjun Oh
Publikováno v:
Journal of Electromagnetic Engineering and Science, Vol 19, Iss 4, Pp 227-233 (2019)
This paper presents a television (TV) transmitter for wireless video streaming applications in TV white space band. The TV transmitter is composed of a digital TV (DTV) signal generator and a UHF-band RF transmitter. Compared to a conventional high-I
Externí odkaz:
https://doaj.org/article/874359fe2df4439cac603a1cc28df9d3
Autor:
Soyeon Kim, Hyunchol Shin
Publikováno v:
Journal of the Korean Institute of Electromagnetic Engineering and Science, Vol 19, Iss 2, Pp 101-106 (2019)
This work presents an ultra-wideband conformal meandered loop antenna for wireless capsule endoscopy applications. The proposed antenna surrounds the outer wall of a capsule, so that the inner space can be used by a battery and other electrical and o
Externí odkaz:
https://doaj.org/article/dc2c67f6050748d9954696192f98c02b
Publikováno v:
Sensors, Vol 21, Iss 16, p 5303 (2021)
A MedRadio RF receiver integrated circuit for implanted and wearable biomedical devices must be resilient to the out-of-band (OOB) orthogonal frequency division modulation (OFDM) blocker. As the OFDM is widely adopted for various broadcasting and com
Externí odkaz:
https://doaj.org/article/dd8b83af203d47009dfcc2e8ad007adc
Publikováno v:
Sensors, Vol 21, Iss 15, p 5128 (2021)
This work presents a 28-GHz Butler matrix based switched-beam antenna for fifth-generation (5G) wireless applications. It integrates a 1 × 4 microstrip antenna, a 4 × 4 Butler matrix, and a single-pole four-throw (SP4T) absorptive switch in a singl
Externí odkaz:
https://doaj.org/article/c97cf3930ad842d4ae3d623ef435fb18
Autor:
Jaewook Shin, Hyunchol Shin
Publikováno v:
Journal of Electrical and Computer Engineering, Vol 2011 (2011)
Autocalibration of VCO frequency and loop gain is an essential process in PLL frequency synthesizers. In a wide tuning-range fractional-N PLL frequency synthesizer, high-speed and high-precision automatic calibration is especially important for short
Externí odkaz:
https://doaj.org/article/37b14c7b44ec4d66818852c53f5abd4a
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 34:116-129
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::146bd80155bd245264d35bb91a768596
https://doi.org/10.5515/kjkiees.2023.34.2.116
https://doi.org/10.5515/kjkiees.2023.34.2.116
Publikováno v:
2022 17th European Microwave Integrated Circuits Conference (EuMIC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ea7dd47182e3380ebf2af7298f4bbfc
https://doi.org/10.23919/eumic54520.2022.9923537
https://doi.org/10.23919/eumic54520.2022.9923537
Publikováno v:
2022 17th European Microwave Integrated Circuits Conference (EuMIC).
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a0c2946499b9019de990ec2a28d19160
https://doi.org/10.23919/eumic54520.2022.9923522
https://doi.org/10.23919/eumic54520.2022.9923522