Located a short hop from Aberystwyth, Pontarfynach, meaning 'the bridge on the Mynach', is a tiny village that can be reached via a heritage train that winds through woodland and countryside. It lies ...

This paper describes the turnstile junction-based OMT(Ortho-mode Transducer). It is usually well-known that turnstile junctions have symmetry structure of waveguide so the higher order modes, which ...