Low Loss Ferrite Y-Junction Circulator Based on Empty Substrate Integrated Coaxial Line at Ku-Band. - Leticia Martinez; Vincent Laur; Alejandro L. Borja; Patrick Quéffélec; Angel Belenguer (IEEE Access, 2019)

Simplified High-Efficiency Soldering Method for the Fabrication of Devices on Empty Substrate Integrated Waveguides. - Marcos D. Fernandez; Angel Belenguer; Darío Herraiz; Leticia Martinez; José A. Ballesteros (IEEE Access, 2024)