Comparison study of 4×4 Butler matrices in microstrip technologies for Ka-band Articles uri icon

authors

  • Pizarro, Francisco
  • RAMIREZ GIL, DAVID
  • Algaba Brazalez, Astrid
  • Herran Ontanon, Luis Fernando
  • RAJO IGLESIAS, EVA

publication date

  • July 2020

start page

  • 1

end page

  • 9

volume

  • 122

International Standard Serial Number (ISSN)

  • 1434-8411

Electronic International Standard Serial Number (EISSN)

  • 1618-0399

abstract

  • This article presents the design, construction and performance comparison of three 4×4 Butler matrix technologies working on the Ka-band: standard microstrip, standard microstrip with metasurface packaging and inverted microstrip gap waveguide technology (IM-GWG). Measurement results show that the packaged microstrip and the IM-GWG exhibit less losses, with a good compromise in cost and performance compared to the conventional microstrip Butler matrix.

keywords

  • butler matrix; inverted microstrip; gap waveguide; microstrip packaged