Zobrazeno 1 - 10
of 140
pro vyhledávání: '"Younggun Pu"'
Autor:
Chang-Hyeon Kim, Ki-Hoon Yang, Yeon-Seob Song, Sang-Sun Yoo, Younggun Pu, Il-Hwan Kim, Seok-Whan Chung, Kwang-Wook Choi, Jun-Eun Park, Kang-Yoon Lee
Publikováno v:
Sensors, Vol 24, Iss 13, p 4149 (2024)
This paper proposed a fine dust detection system using time-interleaved counters in which surface acoustic wave (SAW) sensors changed the resonance point characteristic. When fine dust was applied to the SAW sensor, the resonance point decreased. The
Externí odkaz:
https://doaj.org/article/f7cc955ed0d54217abd74980c6752150
Autor:
Reza E. Rad, Yasser M. Qaragoez, Sungjin Kim, Arash Hejazi, Dong Gyu Kim, Danial Khan, Imran Ali, Behnam S. Rikan, Sang-Sun Yoo, Younggun Pu, Keum Cheol Hwang, Youngoo Yang, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 10, Pp 54214-54220 (2022)
This paper presents a wide-band multi-level switched mode class-E/F23 Power Amplifier (PA) with a reconfigurable power stage core transistor and a load with reconfigurable reactance compensation part. An Automatic Calibration Scheme (ACS) is proposed
Externí odkaz:
https://doaj.org/article/bde7feabc19c4875ab5dddc464097164
Autor:
Reza E. Rad, Arash Hejazi, Sungjin Kim, Younggun Pu, Joon Tae Kim, Keum Cheol Hwang, Youngoo Yang, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 10, Pp 8133-8139 (2022)
This paper presents a 5.8 GHz highly sensitive, high-dynamic-range RF receiver front-end with Automatic-Gain Control (AGC) and a high image-rejection for a Dedicated Short-Range Communication (DSRC) application. It is formed by a transceiver common m
Externí odkaz:
https://doaj.org/article/34f81edb327d46d18d039a4a2a6de7a6
Autor:
Myonggwan Kim, Reza E. Rad, Sungjin Kim, Younggun Pu, Yeonjae Jung, Hyungki Huh, Joonmo Yoo, Seokkee Kim, Kangyoon Lee
Publikováno v:
Sensors, Vol 23, Iss 11, p 5279 (2023)
This paper presents a 5.8 GHz differential cascode power amplifier for an over-the-air wireless power transfer application. Over-the-air wireless power transfer provides a variety of benefits in several applications such as the Internet of Things and
Externí odkaz:
https://doaj.org/article/cf945a122af5476bb15f4adb06ef0a04
Autor:
Muhammad Asif, Imran Ali, Danial Khan, Muhammad Riaz Ur Rehman, Younggun Pu, Sang-Sun Yoo, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 9, Pp 28167-28176 (2021)
This paper proposes a high-performance Digital Feedback low-dropout voltage regulator (DF-LDO) for low power applications. In the DF-LDO regulator, digital feedback and applying spectrum spread clock generator (SSCG) technique are used to reduce outp
Externí odkaz:
https://doaj.org/article/371d46b4d2e8427e99960e56f4fcbf0b
Autor:
Deeksha Verma, Behnam S. Rikan, Khuram Shehzad, Sung Jin Kim, Danial Khan, Venkatesh Kommangunta, Syed Adil Ali Shah, Younggun Pu, Sang-Sun Yoo, Keum Cheol Hwang, Youngoo Yang, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 9, Pp 133143-133155 (2021)
A 12-bit 80 MS/s hybrid type analog-to-digital converter (ADC) for high sampling speed and low power applications is presented in this paper. It has a subranging architecture with a front end of 6-bit Flash ADC with five channels of 6-bit time interl
Externí odkaz:
https://doaj.org/article/228a3f0ef92741c285ae1b583f1419cb
Autor:
Muhammad Riaz Ur Rehman, Arash Hejazi, Imran Ali, Muhammad Asif, Seongjin Oh, Pervesh Kumar, Younggun Pu, Sang-Sun Yoo, Keum Cheol Hwang, Youngoo Yang, Yeonjae Jung, Hyungki Huh, Seokkee Kim, Joon-Mo Yoo, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 9, Pp 152984-152992 (2021)
This paper presents a 0.46 mW and 2.4 GHz; All-Digital Phase-Locked Loop (ADPLL) through an Injection-Locked Frequency Multiplier (ILFM) and Continuous Frequency Tracking Loop (CFTL) circuitry for low power Internet-of-Thing (IoT) applications. In th
Externí odkaz:
https://doaj.org/article/c9ac4dc344304972b4c5c288c7a90f58
Autor:
Donggyu Kim, Sungjun Byun, Younggun Pu, Hyungki Huh, Yeonjae Jung, Seokkee Kim, Kang-Yoon Lee
Publikováno v:
Sensors, Vol 23, Iss 6, p 3019 (2023)
This paper proposes a high-gain low-noise current signal detection system for biosensors. When the biomaterial is attached to the biosensor, the current flowing through the bias voltage is changed so that the biomaterial can be sensed. A resistive fe
Externí odkaz:
https://doaj.org/article/5f661b41820344deaa5c8a630e5c122e
Autor:
Deeksha Verma, Khuram Shehzad, Danial Khan, Qurat Ul Ain, Sung Jin Kim, Dongsoo Lee, Younggun Pu, Minjae Lee, Keum Cheol Hwang, Youngoo Yang, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 8, Pp 85869-85879 (2020)
An energy efficient, low-power 10-bit asynchronous successive approximation register (SAR) analog-to-digital (ADC) converter with the sampling frequency of 8 MS/s is presented for IEEE 802.15.1 IoT sensor based applications. An improved common mode c
Externí odkaz:
https://doaj.org/article/bb2768845ad24bd98aad17c3d3579e06
Autor:
Muhammad Riaz Ur Rehman, Arash Hejazi, Imran Ali, Jae Jin Lee, Seong Jin Oh, Younggun Pu, Kang-Yoon Lee
Publikováno v:
IEEE Access, Vol 8, Pp 57722-57732 (2020)
This paper presents a design of 6.8 mW all digital delay locked loop (ADDLL) with digitally controlled dither cancellation (DCDC) for time to digital converter (TDC) in ranging sensors. ADDLL uses the accumulator (ACC) to control the delay of digital
Externí odkaz:
https://doaj.org/article/0615578ba8544ce18e198d85b7edbdae