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DTSTART:20190310T030000
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DTSTAMP:20200215T232549Z
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DTSTART;TZID=US/Central:20190329T131000
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DESCRIPTION:Title: "High-efficiency RF-power amplifiers and transmitters"\n
 \nSpeaker: Dr. Frederick H. Raab\n\nAbstract: This talk is an overview of 
 techniques for high-efficiency RF-power amplification. First\, some basic 
 concepts about transistors and the concept of average efficiency are intro
 duced. The characteristics of conventional amplifiers (classes A\, B\, and
  C) are then reviewed. The principles\, demonstrated achievements\, and pr
 actical limitations of RF-power amplifiers operating in classes D\, E\, an
 d F are then discussed\, followed by an explanation of continuous- mode op
 eration. Techniques for high-efficiency linear amplification are then disc
 ussed. These include the Kahn EER technique\, envelope tracking\, Doherty\
 , and Chireix outphasing\, as well as high-level amplitude modulators. Fin
 ally some notes on emerging techniques are offered.\n\nCo-sponsored by: ch
 inmay@iastate.edu\n\nSpeaker(s): Frederick Raab\, \n\nRoom: 3043\, Bldg: C
 oover Hall\, 2520 Osborn Dr\, Ames\, Iowa\, United States\, 50011
LOCATION:Room: 3043\, Bldg: Coover Hall\, 2520 Osborn Dr\, Ames\, Iowa\, Un
 ited States\, 50011
ORGANIZER:zhengdao@iastate.edu
SEQUENCE:3
SUMMARY:High-efficiency RF-power amplifiers and transmitters
URL;VALUE=URI:https://events.vtools.ieee.org/m/195269
X-ALT-DESC:Description: <br /><p>Title: "High-efficiency RF-power amplifier
 s and transmitters"</p>\n<p>Speaker: Dr. Frederick H. Raab</p>\n<p>Abstrac
 t:&nbsp\;This talk is an overview of techniques for high-efficiency RF-pow
 er amplification. First\, some basic concepts about transistors and the co
 ncept of average efficiency are introduced. The characteristics of convent
 ional amplifiers (classes A\, B\, and C) are then reviewed. The principles
 \, demonstrated achievements\, and practical limitations of RF-power ampli
 fiers operating in classes D\, E\, and F are then discussed\, followed by 
 an explanation of continuous- mode operation. Techniques for high-efficien
 cy linear amplification are then discussed. These include the Kahn EER tec
 hnique\, envelope tracking\, Doherty\, and Chireix outphasing\, as well as
  high-level amplitude modulators. Finally some notes on emerging technique
 s are offered.</p>
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