Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Yo-Chuol Ho"'
Autor:
Ockgoo Lee, Yo-Chuol Ho, Jaekyoung Lee, Seungjun Back, Ilku Nam, Bo-Eun Kim, Hyunjin Ahn, Minsu Jeong, Hong-Teuk Kim, Deokgi An, Young-Taek Lee
Publikováno v:
IEEE Transactions on Microwave Theory and Techniques. 67:1870-1882
Even though CMOS-based power amplifiers (PAs) provide reductions in size and cost for wireless local area network (WLAN) applications, their performances must be improved to match those of HBT-based PAs. In this paper, a design methodology for WLAN C
Autor:
Jaehyouk Choi, Yo-Chuol Ho, Heein Yoon, Yongsun Lee, Younghyun Lim, Geum-Young Tak, Hong-Teuk Kim
Publikováno v:
IEEE Journal of Solid-State Circuits. 51:614-625
A wideband and low phase noise quadrature local oscillation (LO) signal generator for multistandard cellular transceivers was proposed. Using the new LO-plan consisting of divide-by-6, divide-by-4, and divide-by-12 frequency dividers, the required fr
Autor:
Seong-Sik Song, Seung Yeon Kim, Hong-Teuk Kim, Seung-Min Oh, Sung-Woong Kim, Seung-Yoon Jung, Jin-Kyoung Du, Tak-Su Moon, So-Hyeong Kim, Yu-Suhk Suh, Geum-Young Tak, Woo-Seong Kang, Byoung-Sun Park, Jong-Moon Kim, Yo-Chuol Ho, Ji-Young Chang
Publikováno v:
2017 IEEE Radio Frequency Integrated Circuits Symposium (RFIC).
This paper describes a 28GHz CMOS direct conversion transceiver with packaged 2×4 patch antenna arrays for 5G communication. Test results show good RF performances of Rx NF 6.7dB, Maximum Tx EIRP 31.5dBm (1PA P out_sat =10.5dBm), LO integrated phase
Autor:
Yun Ra, Hong-Teuk Kim, Seungmin Woo, Jong-Moon Kim, Woohyun Paik, Yo-Chuol Ho, Kwangsup So, Seung-Yoon Jung, Jin-Kyoung Du, Seung Yeon Kim
Publikováno v:
2017 11th European Conference on Antennas and Propagation (EUCAP).
For applications of 5G (5th generation mobile networks) communication systems, dual-polarized patch array antenna operating at 28.5 GHz is designed on the package substrate. To verify the radiation performance of designed antenna itself, a test packa
Publikováno v:
The Journal of Korean Institute of Electromagnetic Engineering and Science. 19:1445-1454
In this paper, small UWB antenna with band-stop function for mobile handsets is proposed. A gap between radiator and under and side ground is adjusted for small size and broadband. A radiator is folded to the back side of PCB for miniaturization and
Autor:
John Wallberg, Robert Bogdan Staszewski, C. Fernando, Meng-Chang Lee, Imtinan Elahi, T. Jung, Dirk Leipold, Khurram Muhammad, Charles Lin, T. Mayhugh, Roman Staszewski, Yo-Chuol Ho, Chih-Ming Hung, P. Cruise, S. Larson, J. Jaehnig, Sudheer Vemulapalli, T. Murphy, Irene Deng, Ken Maggio
Publikováno v:
IEEE Journal of Solid-State Circuits. 41:1772-1783
We present the receiver in the first single-chip GSM/GPRS transceiver that incorporates full integration of quad-band receiver, transmitter, memory, power management, dedicated ARM processor and RF built-in self test in a 90-nm digital CMOS process.
Autor:
Ken Maggio, Oren Eliezer, John Wallberg, Valerian Mayega, C. Fernando, Poras T. Balsara, Robert Bogdan Staszewski, Chih-Ming Hung, Yo-Chuol Ho, O. Moreira-Tamayo, S. John, Ofer Friedman, Dirk Leipold, I. Deng, Roman Staszewski, Elida de-Obaldia, Khurram Muhammad, Ran Katz, Vivek Sarda, Jinseok Koh, T. Jung
Publikováno v:
IEEE Journal of Solid-State Circuits. 39:2278-2291
We present a single-chip fully compliant Bluetooth radio fabricated in a digital 130-nm CMOS process. The transceiver is architectured from the ground up to be compatible with digital deep-submicron CMOS processes and be readily integrated with a dig
Publikováno v:
IEEE Journal of Solid-State Circuits. 33:2066-2073
Four- and 13-GHz tuned amplifiers have been implemented in a partially scaled 0.1-1 /spl mu/m CMOS technology on bulk, silicon-on-insulator (SOI), and silicon-on-sapphire (SOS) substrates. The 4-GHz bulk, SOI, and SOS amplifiers exhibit forward gains
Autor:
I. Deng, Oren Eliezer, Khurram Waheed, C. Lin, D. Leipold, Gennady Feygin, Jaimin Mehta, Robert B. Staszewski, T. Murphy, N. Barton, T. Jung, T. Almholt, J. Kerr, Sameh S. Rezeq, Kah Mun Low, John Wallberg, Sumeer Bhatara, Chih-Ming Hung, Kenneth J. Maggio, Manouchehr Entezari, J. Jaehnig, Imran Bashir, T. Mayhugh, Robert Bogdan Staszewski, Sudheer Vemulapalli, P. Cruise, Meng-Chang Lee, C. Fernando, S. Glock, Yo-Chuol Ho, S. Larson, Imtinan Elahi, Khurram Muhammad
Publikováno v:
ISSCC
The RF transceiver is built on the Digital RF Processor (DRP) technology. The ADPLL-based transmitter uses a polar architecture with all-digital PM-FM and AM paths. The receiver uses a discrete-time architecture in which the RF signal is directly sam
Autor:
Yo-Chuol Ho, Muhammad, K., Meng-Chang Lee, Chih-Ming Hung, Wallberg, J., Fernando, C., Cruise, P., Staszewski, R.B., Leipold, D., Maggio, K.
Publikováno v:
2005 IEEE Dallas/CAS Workshop on Architecture, Circuits & Implementation of SOCs; 2005, p199-202, 4p