BEGIN:VCALENDAR VERSION:2.0 PRODID:IEEE vTools.Events//EN CALSCALE:GREGORIAN BEGIN:VTIMEZONE TZID:Turkey BEGIN:DAYLIGHT DTSTART:20380119T061407 TZOFFSETFROM:+0300 TZOFFSETTO:+0300 RRULE:FREQ=YEARLY;BYDAY=3TU;BYMONTH=1 TZNAME:+03 END:DAYLIGHT BEGIN:STANDARD DTSTART:20160907T000000 TZOFFSETFROM:+0300 TZOFFSETTO:+0300 RRULE:FREQ=YEARLY;BYDAY=1WE;BYMONTH=9 TZNAME:+03 END:STANDARD END:VTIMEZONE BEGIN:VEVENT DTSTAMP:20171029T210639Z UID:F40468A2-E5B6-11E7-833E-0050568D7F66 DTSTART;TZID=Turkey:20170924T130000 DTEND;TZID=Turkey:20170924T160000 DESCRIPTION:Lecturer: Dr. Sudhakar Rao\, Northrop Grumman Aerospace Systems \n\nTopic: "Advanced Antenna Systems for 21st Century Satellite Communicat ion Payloads"\n\nLocation: Middle East Technical University\, Ankara\, Tur key\n\nAbstract: 21st century has so far seen several new satellite servic es such as local-channel broadcast for direct broadcast satellite service (DBS)\, high capacity K/Ka-band personal communication satellite (PCS) ser vice\, hosted payloads\, mobile satellite services using very large deploy able reflectors\, high power hybrid satellites etc. All these satellite se rvices are driven by the operators need to reduce the cost of satellite an d pack more capability into the satellite. Antenna sub-system design\, mec hanical packaging on the spacecraft\, and RF performance become very criti cal for these satellites. This talk will cover recent developments in the areas of antenna systems for FSS\, BSS\, PCS\, & MSS satellite communicati ons. System requirements that drive the antenna designs will be presented initially with brief introduction to satellite communications. Reflector a nd array antenna designs will be covered in this talk.\n\nAdvanced antenna system designs for contoured beams\, multiple beams\, and reconfigurable beams will be presented. Contoured beam antennas using dual-gridded reflec tors\, shaped single reflectors\, and shaped Gregorian reflectors will dis cussed. Multiple beam antenna (MBA) concepts and their advantages compared to conventional contoured beams will be introduced. Various designs of th e MBA for DBS\, PCS\, and MSS services will be discussed along with practi cal examples. Recent advances in feed technology and reflector technology will be addressed with few examples. Advances in multi-band antennas cover ing multiple bands will be presented. Topics such as antenna designs for h igh capacity satellites\, large deployable mesh reflector designs\, low PI M designs\, and power handling issues will be included. Brief introduction s to TT&C antennas\, passive inter modulation products (PIM) and multipact ion for satellite payloads will be given. Future trends in the satellite c ommunications including use of higher frequency bands will be discussed. A t the end of this talk\, engineers will be exposed to typical requirements \, designs\, hardware\, software\, and test methods for various satellite antennas.\n\nAnkara\, Ankara\, Türkiye LOCATION:Ankara\, Ankara\, Türkiye ORGANIZER:ozergul@metu.edu.tr SEQUENCE:0 SUMMARY:[Legacy Report] IEEE-APS Distinguished Lecturer Short Course by Dr. Sudhakar Rao URL;VALUE=URI:https://events.vtools.ieee.org/m/152898 X-ALT-DESC:Description: <br /><p>Lecturer:&nbsp\;Dr. Sudhakar Rao\, Northro p Grumman Aerospace Systems</p>\n<p>Topic: "Advanced Antenna Systems for 2 1<sup>st</sup>&nbsp\;Century Satellite Communication Payloads"</p>\n<p>Loc ation:&nbsp\;Middle East Technical University\, Ankara\, Turkey</p>\n<p><e m>Abstract: 21<sup>st</sup>&nbsp\;century has so far seen several new sate llite services such as local-channel broadcast for direct broadcast satell ite service (DBS)\, high capacity K/Ka-band personal communication satelli te (PCS) service\, hosted payloads\, mobile satellite services using very large deployable reflectors\, high power hybrid satellites etc. All these satellite services are driven by the operators need to reduce the cost of satellite and pack more capability into the satellite. Antenna sub-system design\, mechanical packaging on the spacecraft\, and RF performance becom e very critical for these satellites. This talk will cover recent developm ents in the areas of antenna systems for FSS\, BSS\, PCS\, &amp\; MSS sate llite communications. System requirements that drive the antenna designs w ill be presented initially with brief introduction to satellite communicat ions. Reflector and array antenna designs will be covered in this talk.</e m></p>\n<p><em>Advanced antenna system designs for contoured beams\, multi ple beams\, and reconfigurable beams will be presented. Contoured beam ant ennas using dual-gridded reflectors\, shaped single reflectors\, and shape d Gregorian reflectors will discussed. Multiple beam antenna (MBA) concept s and their advantages compared to conventional contoured beams will be in troduced. Various designs of the MBA for DBS\, PCS\, and MSS services will be discussed along with practical examples. Recent advances in feed techn ology and reflector technology will be addressed with few examples. Advanc es in multi-band antennas covering multiple bands will be presented. Topic s such as antenna designs for high capacity satellites\, large deployable mesh reflector designs\, low PIM designs\, and power handling issues will be included. Brief introductions to TT&amp\;C antennas\, passive inter mod ulation products (PIM) and multipaction for satellite payloads will be giv en. Future trends in the satellite communications including use of higher frequency bands will be discussed. At the end of this talk\, engineers wil l be exposed to typical requirements\, designs\, hardware\, software\, and test methods for various satellite antennas.</em></p> END:VEVENT END:VCALENDAR