A novel technique for suppressing heat in onboard High-Power amplifiers

Takana Kaho, Yoshinori Nakasuga, Jin Mitsugi, Masazumi Ueba

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Satellite communication systems have entered the mobile multimedia communication era. To support small earth terminals, the satellites must have high levels of effective isotropic radiated power. Onboard high-power amplifier not only need to generate high RF output power, but also to generate as little heat as possible. To address this issue, we present a new technique that reduces the amount of heat generated in high power amplifiers on a satellite. The technique makes use of heat suppression signals so as to maintain the amplifier's power efficiency. The potential impact on satellite systems is presented. To minimize the interference of the heat suppression signals on the carrier, some techniques are proposed using a multi-port amplifier and an antenna array and a reflector.

Original languageEnglish
Title of host publication21st International Communications Satellite Systems Conference and Exhibit
Publication statusPublished - 2003 Dec 1
Externally publishedYes
Event21st International Communications Satellite Systems Conference and Exhibit, ICSSC 2003 - Yokohama, Japan
Duration: 2003 Apr 152003 Apr 19

Publication series

Name21st International Communications Satellite Systems Conference and Exhibit

Other

Other21st International Communications Satellite Systems Conference and Exhibit, ICSSC 2003
CountryJapan
CityYokohama
Period03/4/1503/4/19

Keywords

  • Adaptive modulation
  • Antenna arrays
  • Coding
  • Communications satellites
  • Heat dissipation
  • Power amplifiers

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing
  • Atmospheric Science
  • Electrical and Electronic Engineering
  • Media Technology

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  • Cite this

    Kaho, T., Nakasuga, Y., Mitsugi, J., & Ueba, M. (2003). A novel technique for suppressing heat in onboard High-Power amplifiers. In 21st International Communications Satellite Systems Conference and Exhibit (21st International Communications Satellite Systems Conference and Exhibit).