Design and realization of low-cost 10 W power amplifier module at 7.9–8.4 GHz

Chi Hyung Ahn, Younghoon Kim, Sungwon Oh, Yeonjun Noh, Dong Ho Lee, Sanghun Lee, Kunhee Cho, Jusung Kim

Research output: Contribution to journalArticlepeer-review

4 Scopus citations

Abstract

This letter describes the design and realization of the low-cost power amplifier module with operation frequency at 7.9–8.4 GHz. Realized power amplifier module employing fully internally matched GaN HEMT power amplifier exhibits 10 W output power and associated gain of 50.1 dB at X-band frequency for satellite communications. The module exhibits the 20% of power added efficiency (PAE), whereas the main power amplifier with internally matched HEMT device achieves 29.3% of PAE. 3rd order intermodulation level is less than −35 dBc with 7 dB output power back-off condition. Proposed housing method of the power amplifier module reduces the thermal distribution by more than 30°C.

Original languageEnglish
Article number20180775
JournalIEICE Electronics Express
Volume15
Issue number19
DOIs
StatePublished - 10 Oct 2018

Bibliographical note

Publisher Copyright:
© IEICE 2018.

Keywords

  • Gallium nitride
  • High mobility electron transistor (HEMT)
  • Microwave transistor
  • X-band

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