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Wooyeol Choi
Researcher at Oklahoma State University–Stillwater
Publications - 81
Citations - 977
Wooyeol Choi is an academic researcher from Oklahoma State University–Stillwater. The author has contributed to research in topics: CMOS & Amplifier. The author has an hindex of 16, co-authored 72 publications receiving 698 citations. Previous affiliations of Wooyeol Choi include University of Texas at Austin & Seoul National University.
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Journal ArticleDOI
A Perspective on Terahertz Next-Generation Wireless Communications
TL;DR: Recent research in terahertz wireless communications and technology is reviewed, focusing on three broad topic classes: the teraHertz channel, tera Hertz devices, and space-based tera hertz system considerations.
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A V-band micromachined 2-D beam-steering antenna driven by magnetic force with polymer-based hinges
Chang-Wook Baek,Seunghyun Song,Jae-Hyoung Park,Sanghyo Lee,Jung-Mu Kim,Wooyeol Choi,Changyul Cheon,Yong-Kweon Kim,Youngwoo Kwon +8 more
TL;DR: In this paper, a two-dimensional mechanical beam-steering antenna was designed and fabricated on a single high-resistivity silicon substrate using microelectromechanical systems technologies, and a polymer-based hinge structure was used to increase the maximum scanning angle to as much as 40/spl deg/
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Opening Terahertz for Everyday Applications
Kenneth K. O,Wooyeol Choi,Qian Zhong,Navneet Sharma,Yaming Zhang,Ruonan Han,Zeshan Ahmad,Dae Yeon Kim,Sandeep Kshattry,Ivan R. Medvedev,David J. Lary,Hyun Joo Nam,Philip Raskin,Insoo Kim +13 more
TL;DR: CMOS IC technology has become an affordable means for implementing capable systems operating at 300 GHz and above, and results suggest that the electronics necessary for everyday life applications in the terahertz band can be affordably realized.
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A Non-Contact-Type RF MEMS Switch for 24-GHz Radar Applications
TL;DR: In this article, a non-contact-type radio-frequency (RF) microelectromechanical system switch for 24-GHz radar applications is proposed, which is free from unavoidable microwelding and stiction problems in other contact types.
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85-to-127 GHz CMOS Signal Generation Using a Quadrature VCO With Passive Coupling and Broadband Harmonic Combining for Rotational Spectroscopy
TL;DR: A quadrature LC-VCO incorporating passive coupling and broadband harmonic combining for frequency multiplication by 4, and NMOS switched variable inductors is fabricated in 65 nm bulk CMOS to generate signals at 85 to 127 GHz.