Low loss waveguide-based Butler matrix with iris coupling control method for millimeterwave applications

• Main Authors: W. Almeshehe, Muataz, Murad, Noor Asniza, A. Rahim, Mohamad Kamal, Ayop, Osman, Zubir, Farid, Abd. Aziz, Mohamad Zoinol A., N. Osman, Mohamed, A. Majid, H.
• Format: Article
• Language: English
• Published: Taylor & Francis 2021
• Subjects: TK7885-7895 Computer engineering. Computer hardware
• Online Access: http://eprints.uthm.edu.my/3383/1/J12322_c598eedf78f958dd801f1ac97332c7a9.pdf; http://eprints.uthm.edu.my/3383/; https://doi.org/10.1080/17455030.2021.1880032

This paper proposes a low loss 4×4 Butler matrix based on rectangular waveguide cavity resonators technology for millimeterwave beamforming network using iris coupling method. This method has the advantage of controlling the electrical fields and the coupling factor inside a complex medium such...