BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Asia/Tokyo BEGIN:STANDARD DTSTART:19510909T000000 TZOFFSETFROM:+1000 TZOFFSETTO:+0900 TZNAME:JST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20260114T104710Z UID:498A3D00-B01E-41CB-910B-98B7968231A4 DTSTART;TZID=Asia/Tokyo:20251107T131500 DTEND;TZID=Asia/Tokyo:20251107T143000 DESCRIPTION:“Dielectric Antennas for Wireless Systems at Millimeter-wave Frequencies and Beyond”\nSpeaker: Daniel Headland\nARC DECRA Fellow\, Un iversity of Adelaide\, Australia\n\n【Abstract】\nAn antenna mediates be tween guided-waves and free-space fields\, most commonly via acceleration of charges in conductive materials. These accelerating charges will in-tur n perturb the free-space electromagnetic fields to which they are coupled\ , causing radiation of electromagnetic waves. However\, this picture impli es that antennas must necessarily be made primarily of conductive metal an d\, although this is suitable for the microwave range\, where metals are c lose to ideal conductors\, Ohmic loss unfortunately increases with respect to frequency. To compensate for this\, growing interest in reaching highe r frequencies has spurred the fundamental re-imagination of antenna design \, this time with a dielectric focus. As a result\, a working understandin g of the wireless systems of the present and future will demand a firm gra sp of the core principles of dielectric radiators. This talk will provide an overview spanning from classical microwave-range works\, through the mm -wave antennas that low-temperature cofired ceramics have made possible\, to contemporary cutting-edge all-dielectric radiators for terahertz and li ght-waves\, which are etched photolithographically from high-purity semico nductors.\n\n【Biography】\nDr. Daniel Headland earned his Ph.D. in Elec trical and Electronic Engineering from The University of Adelaide\, Austra lia\, in 2017. His doctoral research focused on beamforming of terahertz r adiation\, with a particular emphasis on the use of efficient silicon micr ostructures to construct nonuniform metasurfaces. He was awarded the Unive rsity Doctoral Research Medal and received a Dean’s Commendation for Doc toral Thesis Excellence. From 2018 to 2021\, he held a position at Osaka U niversity under the Core Research for Evolutional Science and Technology ( CREST) program of the Japan Science and Technology Agency\, where he worke d on substrateless\, all-intrinsic-silicon micro-scale integration platfor ms. He later received a three-year CONEX-Plus Research Fellowship under th e Marie Curie Actions framework at Universidad Carlos III de Madrid\, Spai n. He is a recipient of the prestigious Discovery Early Career Researcher Award (DECRA) Fellowship. As of late 2024\, he is undertaking this researc h fellowship at his alma mater\, The University of Adelaide. He is also se rving as a 2025 IEEE AP-S Young Professional\, and this presentation is pa rt of the AP-S Young Professionals Ambassador Program.\n\nSpeaker(s): Dani el Headland\n\nRoom: 3F Room 340\, Bldg: Faculty of Science Bldg. 1\, 7-3- 1\, Hongo\, Bunkyo-ku\, Tokyo\, Japan\, Virtual: https://events.vtools.iee e.org/m/507940 LOCATION:Room: 3F Room 340\, Bldg: Faculty of Science Bldg. 1\, 7-3-1\, Hon go\, Bunkyo-ku\, Tokyo\, Japan\, Virtual: https://events.vtools.ieee.org/m /507940 ORGANIZER:aps_tc@ieee-jp.org SEQUENCE:26 SUMMARY:IEEE AP-S Young Professionals Lecture URL;VALUE=URI:https://events.vtools.ieee.org/m/507940 X-ALT-DESC:Description: <br /><p>&ldquo\;Dielectric Antennas for Wireless S ystems at Millimeter-wave Frequencies and Beyond&rdquo\;<br>Speaker: Danie l Headland&nbsp\;<br>&nbsp\; &nbsp\; &nbsp\; &nbsp\; &nbsp\; &nbsp\; &nbsp \; &nbsp\;ARC DECRA Fellow\, University of Adelaide\, Australia</p>\n<p> 【Abstract】<br>An antenna mediates between guided-waves and free-space fields\, most commonly via acceleration of charges in conductive materials . These accelerating charges will in-turn perturb the free-space electroma gnetic fields to which they are coupled\, causing radiation of electromagn etic waves. However\, this picture implies that antennas must necessarily be made primarily of conductive metal and\, although this is suitable for the microwave range\, where metals are close to ideal conductors\, Ohmic l oss unfortunately increases with respect to frequency. To compensate for t his\, growing interest in reaching higher frequencies has spurred the fund amental re-imagination of antenna design\, this time with a dielectric foc us. As a result\, a working understanding of the wireless systems of the p resent and future will demand a firm grasp of the core principles of diele ctric radiators. This talk will provide an overview spanning from classica l microwave-range works\, through the mm-wave antennas that low-temperatur e cofired ceramics have made possible\, to contemporary cutting-edge all-d ielectric radiators for terahertz and light-waves\, which are etched photo lithographically from high-purity semiconductors.</p>\n<p><br>【Biography 】<br>Dr. Daniel Headland earned his Ph.D. in Electrical and Electronic E ngineering from The University of Adelaide\, Australia\, in 2017. His doct oral research focused on beamforming of terahertz radiation\, with a parti cular emphasis on the use of efficient silicon microstructures to construc t nonuniform metasurfaces. He was awarded the University Doctoral Research Medal and received a Dean&rsquo\;s Commendation for Doctoral Thesis Excel lence. From 2018 to 2021\, he held a position at Osaka University under th e Core Research for Evolutional Science and Technology (CREST) program of the Japan Science and Technology Agency\, where he worked on substrateless \, all-intrinsic-silicon micro-scale integration platforms. He later recei ved a three-year CONEX-Plus Research Fellowship under the Marie Curie Acti ons framework at Universidad Carlos III de Madrid\, Spain. He is a recipie nt of the prestigious Discovery Early Career Researcher Award (DECRA) Fell owship. As of late 2024\, he is undertaking this research fellowship at hi s alma mater\, The University of Adelaide. He is also serving as a 2025 IE EE AP-S Young Professional\, and this presentation is part of the AP-S You ng Professionals Ambassador Program.</p> END:VEVENT END:VCALENDAR