BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:America/New_York BEGIN:DAYLIGHT DTSTART:20240310T030000 TZOFFSETFROM:-0500 TZOFFSETTO:-0400 RRULE:FREQ=YEARLY;BYDAY=2SU;BYMONTH=3 TZNAME:EDT END:DAYLIGHT BEGIN:STANDARD DTSTART:20241103T010000 TZOFFSETFROM:-0400 TZOFFSETTO:-0500 RRULE:FREQ=YEARLY;BYDAY=1SU;BYMONTH=11 TZNAME:EST END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20240617T172405Z UID:B74EDF94-9B15-41F8-B004-9894E22E0E79 DTSTART;TZID=America/New_York:20240612T120000 DTEND;TZID=America/New_York:20240612T130000 DESCRIPTION:Next-generation wireless RF systems are expected to contain mul ti-functional\, highly flexible\, and tightly integrated front-ends for ac hieving agile use of the frequency spectrum. In the past decade\, this has led to research on filtering antennas\, or filtennas\, in which the funct ionality of the antenna and filter is combined into a single highly integr ated module that achieves the function of both components with a higher-or der transfer function. These filtennas can have improved performance\, siz e\, and cost. Furthermore\, by incorporating frequency-agility\, a filtenn a can provide adaptation to changing radio environments. One of the challe nges in realizing a reconfigurable filtenna is that two dissimilar element s need to be tuned in tandem.\n\nThis presentation covers recent developme nts in the design of reconfigurable filtennas in the S-band (2-4 GHz) and X-band (8-12 GHz). The filtennas are based on using evanescent-mode caviti es as the backing for slot antennas. A discussion of available tuning mech anisms and the challenges of going from S-band to X-band is included. Seco nd-order reconfigurable filtenna proof-of-concept prototypes are shown in both frequency bands. The prototype filtennas are created using commercial ly available printed circuit board materials and tuning elements and measu red in an anechoic chamber. The S-band filtenna can continuously tune from 2 to 2.6 GHz while achieving a realized gain between 2.7 to 5.2 dB\, resp ectively. The X-band filtenna demonstrates tuning from 9.6 to 11.1 GHz\, w ith a maximum gain of 5 dB. Overall\, with the demonstrated performance\, these elements are promising components for future wireless communications and radar systems.\n\nSpeaker(s): Jessica E. Ruyle\, \n\nVirtual: https:/ /events.vtools.ieee.org/m/418644 LOCATION:Virtual: https://events.vtools.ieee.org/m/418644 ORGANIZER:cara.kataria@ll.mit.edu SEQUENCE:25 SUMMARY:Electronically Reconfigurable Filtennas for S-band and X-band Opera tion URL;VALUE=URI:https://events.vtools.ieee.org/m/418644 X-ALT-DESC:Description: <br /><p class="MsoNormal" style="margin-bottom: 0i n\; line-height: normal\; mso-layout-grid-align: none\; text-autospace: no ne\;"><span style="font-family: 'Verdana'\,sans-serif\; mso-fareast-font-f amily: NimbusRomNo9L-Regu\; mso-bidi-font-family: NimbusRomNo9L-Regu\; mso -font-kerning: 0pt\;">Next-generation wireless RF systems are expected to contain multi-functional\, highly flexible\, and tightly integrated front- ends for achieving agile use of the frequency spectrum. In the past decade \, this has led to research on filtering antennas\, or filtennas\, in whic h the functionality of the antenna and filter is combined into a single hi ghly integrated module that achieves the function of both components with a higher-order transfer function. These filtennas can have improved perfor mance\, size\, and cost. Furthermore\, by incorporating frequency-agility\ , a filtenna can provide adaptation to changing radio environments. One of the challenges in realizing a reconfigurable filtenna is that two dissimi lar elements need to be tuned in tandem.</span></p>\n<p class="MsoNormal" style="margin-bottom: 0in\; line-height: normal\; mso-layout-grid-align: n one\; text-autospace: none\;"><span style="font-family: 'Verdana'\,sans-se rif\; mso-fareast-font-family: NimbusRomNo9L-Regu\; mso-bidi-font-family: NimbusRomNo9L-Regu\; mso-font-kerning: 0pt\;">&nbsp\;</span></p>\n<p class ="MsoNormal" style="margin-bottom: 0in\; line-height: normal\;"><span styl e="font-family: 'Verdana'\,sans-serif\; mso-fareast-font-family: NimbusRom No9L-Regu\; mso-bidi-font-family: NimbusRomNo9L-Regu\; mso-font-kerning: 0 pt\;">This presentation covers recent developments in the design of reconf igurable filtennas in the S-band (2-4 GHz) and X-band (8-12 GHz). The filt ennas are based on using evanescent-mode cavities as the backing for slot antennas. A discussion of available tuning mechanisms and the challenges o f going from S-band to X-band is included. Second-order reconfigurable fil tenna proof-of-concept prototypes are shown in both frequency bands. The p rototype filtennas are created using commercially available printed circui t board materials and tuning elements and measured in an anechoic chamber. The S-band filtenna can continuously tune from 2 to 2.6 GHz while achievi ng a realized gain between 2.7 to 5.2 dB\, respectively. The X-band filten na demonstrates tuning from 9.6 to 11.1 GHz\, with a maximum gain of 5 dB. Overall\, with the demonstrated performance\, these elements are promisin g components for future wireless communications and radar systems.</span>< /p> END:VEVENT END:VCALENDAR