{"459561":{"#nid":"459561","#data":{"type":"news","title":"Park, Li Win Industry Scholarship Awards at IEEE-CICC","body":[{"value":"\u003Cp\u003EJong Seok Park and Tso-Wei Li won Intel\/IBM\/Catalyst Foundation Student Scholarship Awards at the 2015 IEEE Custom Integrated Circuits Conference (CICC), held September 28-30 in San Jose, California. They are both Ph.D. students in the Georgia Tech School of Electrical and Computer Engineering (ECE).\u003C\/p\u003E\u003Cp\u003EAt this year\u2019s IEEE-CICC, only two top ranked student papers were selected for this award by the wireless subcommittee, and both of these papers were from the Georgia Tech Electronics and Micro-System (GEMS) Lab, led by Hua Wang, who holds the Demetrius T. Paris Junior Professorship in ECE and who serves as Ph.D. advisor for both Park and Li.\u003C\/p\u003E\u003Cp\u003EPark\u2019s award-winning paper is entitled, \u0022A Highly Linear Dual-Band Mixed-Mode Polar Power Amplifier in CMOS with An Ultra-Compact Output Network,\u0022 co-authored with Song Hu (an ECE Ph.D. student at the Georgia Tech GEMS Lab), Yanjie Wang (a staff scientist at Intel Labs), and Hua Wang. This work is based on a collaboration between the Georgia Tech GEMS Lab and Intel Labs.\u003C\/p\u003E\u003Cp\u003EThere is an increasing interest in developing mixed-signal power amplifiers\/transmitters in CMOS and employing them in next-generation wireless communication platforms. Such mixed-signal power amplifiers\/transmitters explore the unparalleled computation capabilities in CMOS and leverage them to enhance large-signal radio-frequency performance, such as peak efficiency, back-off efficiency, and linearity. Park\u0027s paper exploits this mixed-signal power amplifier\/transmitter design philosophy, and it proposes and demonstrates the world\u2019s first highly linear digital polar power amplifier in a standard 65nm bulk CMOS process. The power amplifier is capable of operating at dual-frequencies without any band-selection switch or tuning element. Park\u0027s IC chip achieves the state-of-the-art performance of +28.1dBm\/+26.0dBm power amplifier output power with 40.7%\/27.0% drain efficiency at 2.6\/4.5GHz. Mixed-signal linearization techniques allow the power amplifier to amplify a 256-QAM signal with 2.05%\/1.03% EVM and +21.51dBm\/+19.27dBm average output power at 2.35\/4.7GHz.\u003C\/p\u003E\u003Cp\u003ELi\u2019s award-winning paper is entitled \u0022A 2-24GHz 360-Degree Full-Span Differential Vector Modulator Phase Rotator with Transformer-Based Poly-Phase Quadrature Network,\u0022 co-authored with Park and Hua Wang. This work is based on a collaboration between the Georgia Tech GEMS Lab and the Air Force Research Lab (AFRL) at Wright-Patterson Air Force Base.\u003C\/p\u003E\u003Cp\u003EOne of the major challenges in modern broadband phased-array systems is the synthesis of high-precision, phase-shifted radar signals for high-quality beam-forming. Existing broadband phase-shifting approaches often require frequency-dependent calibration tables or tuning elements, which inevitably complicate their use in in-field defense applications. Moreover, no reported designs can perform high-precision 360-degree phase shifting over a decade-wide bandwidth.\u003C\/p\u003E\u003Cp\u003ELi\u0027s paper addresses this unmet challenge by proposing and demonstrating a broadband vector modulator phase rotator based on a novel transformer-based polyphase network, achieving a first-ever decade-wide instantaneous bandwidth (2GHz-24GHz). The phase rotator is implemented in a standard 65nm bulk CMOS process. The maximum rms phase error is only 1.22 degrees within 1.5dB amplitude variation for full 360-degree phase interpolation from 2GHz to 24GHz. Li\u0027s design does not require any frequency tuning element, band selection switches, or frequency-dependent code compensation\/look-up table. Such a unique \u0022one-code-for-all-frequency\u0022 solution facilitates the development and deployment of ultra-broadband large-scaled phased-array systems.\u0026nbsp;\u003C\/p\u003E\u003Cp\u003E\u003Cstrong\u003EPictured in photo left to right at IEEE-CICC:\u003C\/strong\u003E Jong Seok Park, Don Thelen of ON Semiconductor and the IEEE-CICC Conference Chair, Tso-Wei Li, and Hua Wang.\u003C\/p\u003E","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EECE Ph.D. students Jong Seok Park and Tso-Wei Li won Intel\/IBM\/Catalyst Foundation Student Scholarship Awards at the 2015 IEEE Custom Integrated Circuits Conference (CICC), held September 28-30 in San Jose, California.\u0026nbsp;\u003C\/p\u003E","format":"limited_html"}],"field_summary_sentence":[{"value":"ECE Ph.D. students Jong Seok Park and Tso-Wei Li won Intel\/IBM\/Catalyst Foundation Student Scholarship Awards at the 2015 IEEE Custom Integrated Circuits Conference (CICC), held September 28-30 in San Jose, California."}],"uid":"27241","created_gmt":"2015-10-15 15:21:24","changed_gmt":"2016-10-08 03:19:47","author":"Jackie Nemeth","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2015-10-15T00:00:00-04:00","iso_date":"2015-10-15T00:00:00-04:00","tz":"America\/New_York"},"extras":[],"hg_media":{"459541":{"id":"459541","type":"image","title":"IEEE-CICC industry award winners","body":null,"created":"1449256361","gmt_created":"2015-12-04 19:12:41","changed":"1475895204","gmt_changed":"2016-10-08 02:53:24","alt":"IEEE-CICC industry award winners","file":{"fid":"203571","name":"2015cicc_gt_gems_group.jpg","image_path":"\/sites\/default\/files\/images\/2015cicc_gt_gems_group_0.jpg","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/2015cicc_gt_gems_group_0.jpg","mime":"image\/jpeg","size":1578188,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/2015cicc_gt_gems_group_0.jpg?itok=kjl8q5MJ"}}},"media_ids":["459541"],"related_links":[{"url":"http:\/\/www.ece.gatech.edu\/","title":"School of Electrical and Computer Engineering"},{"url":"http:\/\/www.gatech.edu\/","title":"Georgia Tech"},{"url":"http:\/\/www.ece.gatech.edu\/research\/labs\/gems\/","title":"Georgia Tech Electronics and Micro-System Lab"},{"url":"http:\/\/ieee-cicc.org\/","title":"IEEE Custom Integrated Circuits Conference"}],"groups":[{"id":"1255","name":"School of Electrical and Computer Engineering"}],"categories":[{"id":"134","name":"Student and Faculty"},{"id":"8862","name":"Student Research"},{"id":"145","name":"Engineering"},{"id":"149","name":"Nanotechnology and Nanoscience"},{"id":"135","name":"Research"},{"id":"150","name":"Physics and Physical Sciences"}],"keywords":[{"id":"109","name":"Georgia Tech"},{"id":"104011","name":"Georgia Tech Electronics and Micro-System (GEMS) Lab"},{"id":"67901","name":"Hua Wang"},{"id":"144751","name":"IEEE Custom Integrated Circuits Conference"},{"id":"87111","name":"Jong Seok Park"},{"id":"166855","name":"School of Electrical and Computer Engineering"},{"id":"144741","name":"Tso-Wei Li"}],"core_research_areas":[{"id":"39441","name":"Bioengineering and Bioscience"},{"id":"39451","name":"Electronics and Nanotechnology"}],"news_room_topics":[],"event_categories":[],"invited_audience":[],"affiliations":[],"classification":[],"areas_of_expertise":[],"news_and_recent_appearances":[],"phone":[],"contact":[{"value":"\u003Cp\u003EJackie Nemeth\u003C\/p\u003E\u003Cp\u003ESchool of Electrical and Computer Engineering\u003C\/p\u003E\u003Cp\u003E404-894-2906\u003C\/p\u003E\u003Cp\u003E\u003Ca href=\u0022mailto:jackie.nemeth@ece.gatech.edu\u0022\u003Ejackie.nemeth@ece.gatech.edu\u003C\/a\u003E\u003C\/p\u003E","format":"limited_html"}],"email":["jackie.nemeth@ece.gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}