Low-cost 63% efficient 2.5-kW UHF power amplifier for a wind profiler radar

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Abstract

This paper describes a low-cost 449-MHz 2.5-kW peak pulse amplifier for use in a wind profiling radar. New high-power LDMOS transistors are enabling the use of kilowatt level pulse power amplifiers for under US25¢/W in transistor costs. With pulse duty cycles of 10-20%, kilowatt modules with efficiencies greater than 60% can be combined to achieve multi-kilowatt transmitters, allowing higher transmit powers and improved radar signal to noise ratio.

Original languageEnglish
Title of host publicationIMS 2012 - 2012 IEEE MTT-S International Microwave Symposium
DOIs
StatePublished - 2012
Event2012 IEEE MTT-S International Microwave Symposium, IMS 2012 - Montreal, QC, Canada
Duration: Jun 17 2012Jun 22 2012

Publication series

NameIEEE MTT-S International Microwave Symposium Digest
ISSN (Print)0149-645X

Conference

Conference2012 IEEE MTT-S International Microwave Symposium, IMS 2012
Country/TerritoryCanada
CityMontreal, QC
Period06/17/1206/22/12

Keywords

  • Atmospheric measurements
  • Meteorological radar
  • Power amplifiers
  • Pulse amplifiers

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