Renau, A.A.RenauMaye, C.C.MayeWrana, D.D.WranaHaussmann, S.S.HaussmannKallfass, I.I.KallfassJohn, LaurenzLaurenzJohnJung, B.K.B.K.JungHellrung, U.U.HellrungSchlegel, P.P.SchlegelKuerner, T.T.KuernerBraun, R.P.R.P.BraunLeiba, Y.Y.LeibaKawanishi, T.T.KawanishiHisatake, S.S.HisatakeKondou, K.K.KondouSzriftgiser, P.P.SzriftgiserDucournau, G.G.Ducournau2024-03-052024-03-052023https://publica.fraunhofer.de/handle/publica/46285110.23919/EuMC58039.2023.10290501We present in this paper a demonstartion of THz transmission system enabling a full frequency duplex link in the 300 GHz band using a single THz path. The system is based on a super heterodyne architecture that enables tp up-covert 71-76 GHz and 81-86 GHz signals to the 300 GHz band. The system introduces a frequency duplexing system to achieve a bi-directional transmission in a single THz path. The performances of the system are analysed, and the system validation is done using IP traffic with 12.6 Gbit/s over 645 m.enTHzwireless millimettre/sub-mm technologiesconference paper