BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20230312T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20231105T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20230411T172300Z UID:FC5F659C-0610-4090-B377-2A45AF51A427 DTSTART;TZID=America/New_York:20230406T100000 DTEND;TZID=America/New_York:20230406T111500 DESCRIPTION:Wireless energy harvesting (WEH) and wireless power transfer (W PT) are two closely related topics: they both employ a critical device – a rectenna\, which is defined as the combination of an antenna and a rect ifier. It receives RF/microwave waves and converts them into DC energy/pow er which can then be stored or used by application devices. It is expected this technology would produce higher energy conversion efficiency than ph otovoltaic technology for electromagnetic waves in the future.\n\nEnergy c onversion efficiency is the critical and most important element for wirele ss energy harvesting (WEH) and wireless power transfer (WPT). How to desig n an efficient rectenna is a key challenge since this is a non-linear devi ce whose performance is heavily affected by the input power and the load i mpedance.\n\nWEH is motivated by the demand for a low-cost and low-power s upplier for many Internet-of-Things (IoT) devices. The conventional batter y is good for many applications\, but it has to be changed now and then wh ich means a waste of human resources and materials. Due to the widespread use of wireless systems\, a lot of electromagnetic energies are around us and available in the ambiance environment at different frequencies (such a s FM\, TV\, mobile\, and Wi-Fi signals). Rectennas\, especially broadband rectennas\, are the ideal device to harvest these energies.\n\nWPT is anot her major breakthrough that has made wireless charging possible and will e nable many more anticipated ubiquitous IoT\, EV\, and medical applications . Unlike WEH\, WPT is normally narrow-band and could be near-field or far- field. Thus the design requirements are different from WEH although they b oth use rectennas.\n\nIn this Lecture\, we are going to\n\n1) introduce th e rectenna and review major historical events and developments\;\n\n2) pro vide a comprehensive review of rectenna designs (including different topol ogies and their comparison)\;\n\n3) discuss the state-of-the-art designs ( including such as the application of metamaterials and surfaces) and chall enges (e.g. how to make it compact and efficient)\;\n\n4) explain its appl ications in a range of WEH and WPT\, including some very ambitious project s in the world.\n\nFurthermore\, it will include some life and video demon strations produced by our research group.\n\nCo-sponsored by: Sataracom Mo ntreal\n\nSpeaker(s): Prof. Yi Huang\, \n\nVirtual: https://events.vtools. ieee.org/m/351635 LOCATION:Virtual: https://events.vtools.ieee.org/m/351635 ORGANIZER:elham.baladi@polymtl.ca SEQUENCE:13 SUMMARY:Wireless Energy Harvesting and Power Transfer URL;VALUE=URI:https://events.vtools.ieee.org/m/351635 X-ALT-DESC:Description: <br /><p>Wireless energy harvesting (WEH) and wirel ess power transfer (WPT) are two closely related topics: they both employ a critical device &ndash\; a rectenna\, which is defined as the combinatio n of an antenna and a rectifier. It receives RF/microwave waves and conver ts them into DC energy/power which can then be stored or used by applicati on devices. It is expected this technology would produce <strong>higher en ergy conversion efficiency</strong> than photovoltaic technology for elect romagnetic waves in the future.</p>\n<p>Energy conversion efficiency is th e critical and most important element for wireless energy harvesting (WEH) and wireless power transfer (WPT). How to design an efficient rectenna is a key challenge since this is <strong>a non-linear device</strong> whose performance is heavily affected by the input power and the load impedance. </p>\n<p>WEH is motivated by the demand for a low-cost and low-power suppl ier for many Internet-of-Things (IoT) devices. The conventional battery is good for many applications\, but it has to be changed now and then which means a waste of human resources and materials. Due to the widespread use of wireless systems\, a lot of electromagnetic energies are around us and available in the ambiance environment at different frequencies (such as FM \, TV\, mobile\, and Wi-Fi signals). Rectennas\, especially broadband rect ennas\, are the ideal device to harvest these energies.</p>\n<p>WPT is ano ther major breakthrough that has made wireless charging possible and will enable many more anticipated ubiquitous IoT\, EV\, and medical application s. Unlike WEH\, WPT is normally narrow-band and could be near-field or far -field. Thus the design requirements are different from WEH although they both use rectennas.</p>\n<p>In this Lecture\, we are going to</p>\n<p>1) i ntroduce the rectenna and review major historical events and developments\ ;</p>\n<p>2) provide a comprehensive review of rectenna designs (including different topologies and their comparison)\;</p>\n<p>3) discuss the state -of-the-art designs (including such as the application of metamaterials an d surfaces) and challenges (e.g. how to make it compact and efficient)\;</ p>\n<p>4) explain its applications in a range of WEH and WPT\, including s ome very ambitious projects in the world.</p>\n<p>Furthermore\, it will in clude some life and video demonstrations produced by our research group.</ p> END:VEVENT END:VCALENDAR