{"643456":{"#nid":"643456","#data":{"type":"news","title":"Mannem, Munzer Chosen for Analog Devices Outstanding Student Designer Awards","body":[{"value":"\u003Cp\u003ENaga Sasikanth Mannem and David Munzer have been chosen for Analog Devices Outstanding Student Designer Awards. They are both Ph.D. students in the Georgia Tech School of Electrical and Computer Engineering (ECE).\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003EMannem and Munzer received these awards for the excellence of their integrated circuits related Ph.D. research and their academic performance. They are both members of the Georgia Tech Electronics and Micro-System Lab, where they are advised by ECE Associate Professor Hua Wang.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe title of Mannem\u0026rsquo;s research is \u0026ldquo;Reliable and Secure Communication Systems.\u0026rdquo; His research is primarily targeted at improving the performance of phased array communication systems by employing circuit and architecture level techniques. Phased array systems are being employed in 5G and beyond 5G communication systems both to achieve a higher array gain and extend the distance of operation. However, conventional beamforming arrays exhibit several inherent limitations such as antenna voltage standing wave ratio (VSWR) variations at large scan angles and limited security.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ETo achieve a reliable communication link even under a large antenna VSWR of 3:1, Mannem and his colleagues proposed a Reconfigurable Hybrid Series\/Parallel Doherty Power Amplifier. To improve the security of a communication link between a transmitter and the desired receiver, they exploit the inherent spatial selectivity that a phased array offers and extends its security performance by using multiple input multiple output (MIMO) systems, realizing a truly directional and secure communication. This work was published at the 2020 International Solid-State Circuits Conference and in the\u0026nbsp;\u003Cem\u003EIEEE Journal of Solid-State Circuits\u003C\/em\u003E.\u003C\/p\u003E\r\n\r\n\u003Cp\u003EThe title of Munzer\u0026rsquo;s research is \u0026ldquo;Broadband VSWR Resilient Transmitters and Built in Self-Test (BiST).\u0026rdquo; In order to compensate for the large path loss at mm-Wave frequencies, phased arrays are used. However, the antenna elements couple with one another, which causes the impedance presented to the electronics to deviate from the ideal 50\u0026Omega; terminations in which they were designed for. This issue compromises both the array\u0026rsquo;s radiation pattern, as well as the electronics\u0026rsquo; performance in both linearity and efficiency.\u0026nbsp;\u003C\/p\u003E\r\n\r\n\u003Cp\u003ETo address this challenge, Munzer and his colleagues investigate different sensing circuitry to detect the antenna\u0026#39;s impedance and real power delivered, so that they can reconfigure both the electronics and overall array under these load mismatch conditions. The broadband performance of the transceiver electronics and BiST circuitry allows these designs to cover both the commercial and military 5G frequency bands.\u003C\/p\u003E\r\n","summary":null,"format":"limited_html"}],"field_subtitle":"","field_summary":[{"value":"\u003Cp\u003EECE Ph.D. students\u0026nbsp;Naga Sasikanth Mannem and David Munzer have been chosen for Analog Devices Outstanding Student Designer Awards.\u003C\/p\u003E\r\n","format":"limited_html"}],"field_summary_sentence":[{"value":"ECE Ph.D. students\u00a0Naga Sasikanth Mannem and David Munzer have been chosen for Analog Devices Outstanding Student Designer Awards."}],"uid":"27241","created_gmt":"2021-01-26 19:39:06","changed_gmt":"2021-01-26 19:41:23","author":"Jackie Nemeth","boilerplate_text":"","field_publication":"","field_article_url":"","dateline":{"date":"2021-01-26T00:00:00-05:00","iso_date":"2021-01-26T00:00:00-05:00","tz":"America\/New_York"},"extras":[],"hg_media":{"643457":{"id":"643457","type":"image","title":"Naga Sasikanth (Sasi) Mannem and David Munzer","body":null,"created":"1611690026","gmt_created":"2021-01-26 19:40:26","changed":"1611690026","gmt_changed":"2021-01-26 19:40:26","alt":"photograph of Naga Sasikanth (Sasi) Mannem and David Munzer","file":{"fid":"244299","name":"Mannem and Munzer.png","image_path":"\/sites\/default\/files\/images\/Mannem%20and%20Munzer.png","image_full_path":"http:\/\/hg.gatech.edu\/\/sites\/default\/files\/images\/Mannem%20and%20Munzer.png","mime":"image\/png","size":800806,"path_740":"http:\/\/hg.gatech.edu\/sites\/default\/files\/styles\/740xx_scale\/public\/images\/Mannem%20and%20Munzer.png?itok=FbI2O_EV"}}},"media_ids":["643457"],"related_links":[{"url":"http:\/\/www.ece.gatech.edu","title":"School of Electrical and Computer Engineering"},{"url":"http:\/\/gems.ece.gatech.edu","title":"Georgia Tech Electronics and Micro-System Lab"},{"url":"http:\/\/www.gatech.edu","title":"Georgia Tech"},{"url":"https:\/\/www.analog.com\/en\/index.html#","title":"Analog Devices"}],"groups":[{"id":"1255","name":"School of Electrical and Computer Engineering"}],"categories":[{"id":"145","name":"Engineering"},{"id":"147","name":"Military Technology"},{"id":"149","name":"Nanotechnology and Nanoscience"},{"id":"150","name":"Physics and Physical Sciences"}],"keywords":[{"id":"109","name":"Georgia Tech"},{"id":"166855","name":"School of Electrical and Computer Engineering"},{"id":"85861","name":"Georgia Tech Electronics and Micro-System Lab"},{"id":"186831","name":"Analog Devices"},{"id":"186832","name":"Analog Devices Outstanding Student Designer Awards"},{"id":"67901","name":"Hua Wang"},{"id":"186833","name":"phased array communication systems"},{"id":"172364","name":"5G"},{"id":"186834","name":"antenna voltage standing wave ratio"},{"id":"186835","name":"VSWR"},{"id":"2616","name":"antenna"},{"id":"186836","name":"Reconfigurable Hybrid Series\/Parallel Doherty Power Amplifier"},{"id":"186837","name":"multiple input multiple output (MIMO) systems"},{"id":"171187","name":"secure communication"},{"id":"186838","name":"2020 International Solid-State Circuits Conference"},{"id":"183938","name":"IEEE Journal of Solid-State Circuits"},{"id":"186839","name":"Broadband VSWR Resilient Transmitters"},{"id":"186840","name":"Built in Self-Test (BiST)"},{"id":"186841","name":"mm-Wave frequencies"},{"id":"609","name":"electronics"},{"id":"186842","name":"sensing circuitry"},{"id":"3388","name":"Broadband"},{"id":"186843","name":"commercial 5G frequency bands"},{"id":"186844","name":"military 5G frequency bands"}],"core_research_areas":[{"id":"39451","name":"Electronics and Nanotechnology"},{"id":"39481","name":"National Security"}],"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\r\n\r\n\u003Cp\u003ESchool of Electrical and Computer Engineering\u003C\/p\u003E\r\n\r\n\u003Cp\u003E404-894-2906\u003C\/p\u003E\r\n","format":"limited_html"}],"email":["jackie.nemeth@ece.gatech.edu"],"slides":[],"orientation":[],"userdata":""}}}