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A design of K-band predistortion linearizer using reflective schottky diode for satellite TWTAs

  • Hee Young Jeong*
  • , Sang Keun Park
  • , Nam Sik Ryu
  • , Yong Chae Jeong
  • , In Bok Yom
  • , Young Kim
  • *Corresponding author for this work

Research output: Contribution to conferenceConference paperpeer-review

Abstract

In this paper, a new predistortion method to reduce nonlinearity of a traveling wave tube amplifiers (TWTAs) is proposed. Nonlinear transfer characteristics of TWTA are analyzed using a Carrier Complex Power Series (CCPS). An inverse complex power series of a predistortion linearizer to linearize TWTA are also proposed. The inverse nonlinear distortion characteristics of predistorter can be realized with reflective structure that is composed of schottky diode and resistor-terminated transmission line. The AM-to-AM and the AM-to-PM characteristics of TWTA on K-band were improved from -5.8dB and -37.3° to 0.8dB and 6.7° by proposed predistortion linearizer, respectively.

Original languageEnglish
Title of host publication35th European Microwave Conference 2005 - Conference Proceedings
Pages1543-1546
Number of pages4
DOIs
StatePublished - 2005
Event2005 European Microwave Conference - Paris, France
Duration: 2005.10.42005.10.6

Publication series

Name35th European Microwave Conference 2005 - Conference Proceedings
Volume3

Conference

Conference2005 European Microwave Conference
Country/TerritoryFrance
CityParis
Period05.10.405.10.6

Quacquarelli Symonds(QS) Subject Topics

  • Engineering & Technology

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