D. Serghiou, M. Khalily, S. Johny, M. Stanley, I. Fatadin, T. Brown, N. Ridler, R. Tafazolli
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Ultra-Wideband Terahertz Channel Propagation Measurements from 500 to 750 GHz
This paper presents empirically based ultra-wideband and directional channel measurements, performed in the Terahertz (THz) frequency range over 250 GHz bandwidth from 500 GHz to 750 GHz. Measurement setup calibration technique is presented for free-space measurements taken at Line-of-Sight (LoS) between the transmitter (Tx) and receiver (Rx) in an indoor environment. The atmospheric effects on signal propagation in terms of molecular absorption by oxygen and water molecules are calculated and normalized. Channel impulse responses (CIRs) are acquired for the LoS scenario for different antenna separation distances. From the CIRs the Power Delay Profile (PDP) is presented where multiple delay taps can be observed caused due to group delay products and reflections from the measurement bench.
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