Ku-band GaAs mHEMT MMICandRFfront-end module for space applications

Arican G. O., AKÇAM N., Yazgan E.

MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, vol.63, no.2, pp.417-425, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 63 Issue: 2
  • Publication Date: 2021
  • Doi Number: 10.1002/mop.32613
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Communication Abstracts, Compendex, INSPEC, Metadex, DIALNET, Civil Engineering Abstracts
  • Page Numbers: pp.417-425
  • Keywords: front end module, LNA, MMIC, noise figure, waveguide transition, NOISE, LNA
  • TED University Affiliated: Yes


This article presents a Ku-band Low Noise Amplifier (LNA) Monolithic Microwave Integrated Circuit (MMIC) and RF front-end module for space applications. LNA MMIC was developed with utilizing 0.07 mu m GaAs m-HEMT process. Noise Figure (NF) and gain results of LNA module were measured as 1.3 and 43 dB, respectively and OIP3 was measured as +20 dBm at the ambient temperature. The LNA module was tested in the temperature range between -25 degrees C and 75 degrees C and small signal gain and NF variation were less than 3 and 0.8 dB, respectively. This article describes the MMIC LNA design, mechanical chassis design, WR75 waveguide-to-microstrip design, and measurement results of the LNA front-end module.