NAVARRINI, AlessandroAlessandroNAVARRINIPISANU, ToninoToninoPISANUNESTI, RenzoRenzoNESTI2023-01-202023-01-2020090895-2477http://hdl.handle.net/20.500.12386/32953We describe the design, construction, and performance of a 180° hybrid coupler for the frequency band 1.3-1.8 GHz (L-band). The hybrid utilizes a WR650 rectangular waveguide cavity and has three 50 Ω, coaxial ports. The signals are coupled in and out of the cavity through broadband coaxial probes attached to 7/16-type connectors. The measured performances are in excellent agreement with the electromagnetic simulations. © 2009 Wiley Periodicals, Inc.STAMPAenArticle10.1002/mop.244112-s2.0-67650822143https://api.elsevier.com/content/abstract/scopus_id/67650822143https://onlinelibrary.wiley.com/doi/10.1002/mop.24411FIS/01 - FISICA SPERIMENTALEERC sectors::Physical Sciences and Engineering::PE7 Systems and Communication Engineering: Electronic, communication, optical and systems engineering::PE7_2 Electrical and electronic engineering: semiconductors, components, systems