Sub-THz Channel Sounding Dataset

Dataset Overview

This dataset contains dual-band Sub-THz channel measurements at 154 GHz and 300 GHz, collected by the Radio Signal Processing Laboratory at Niigata University using a Keysight AWG/DGT-based channel sounder. The measurements cover four representative propagation environments: an open square outdoor hotspot, an indoor corridor, an indoor conference room, and an outdoor street canyon.

For each scenario, channel transfer functions (CTFs) are measured by mechanically scanning TX and/or RX horn antennas over the azimuth plane, enabling extraction of multipath components (MPCs) including delay, direction-of-departure (DoD), direction-of-arrival (DoA), and received power.

Measurement Setup

Measurement Scenarios

Measurement Method

Channel measurements were performed using a custom-built dual-band Sub-THz channel sounder based on a Keysight AWG/DGT platform, covering 154 GHz (4 GHz BW) and 300 GHz (8 GHz BW) simultaneously. High-gain horn antennas are mechanically rotated in azimuth at both TX and RX sides to obtain double-directional channel data.

Channel Sounder Specifications

Back-to-Back Calibration

A back-to-back (B2B) calibration is performed by directly connecting the TX and RX chains to measure the combined system frequency response. This response is divided out of all measured CTFs to yield calibrated channel transfer functions free of hardware distortion.

Dual-band Setup

TX unit (left) with Up-Conv., BPF, PA, and Horn Ant. for 154/300 GHz. RX unit (right) with Horn Ant. and Down-Conv. Mounted on motorized rotator for azimuth scanning.

System Architecture

Full system block diagram with hardware photo. TX: AWG (M8195A, 64 GSa/s) with ×12/×6 upconversion to 300/154 GHz. RX: Digitizer (M8131A, 32 GSa/s) with LNA and downconverter. GPS/Rubidium clock for synchronization.

Citation

If you use this dataset in your research, please cite the relevant papers:

@article{kim2026quasi,
  author  = {Kim, Minseok and Yomoda, Masato and
             Mao, Minghe and Kuno, Nobuaki and
             Kitao, Koshiro and Suyama, Satoshi},
  title   = {{Quasi-Deterministic Modeling of Sub-THz
             Band Access Channels in Street Canyon
             Environments}},
  journal = {IEEE Transactions on Antennas and
             Propagation},
  year    = {2026},
  doi     = {10.1109/tap.2026.3680565}
}

@article{mao2026indoor,
  author  = {Mao, Minghe and Kim, Minseok},
  title   = {{Indoor Sub-THz Channel Characterization
             at 154 GHz and 300 GHz in a Conference
             Room Scenario}},
  journal = {IEEE Antennas and Wireless Propagation
             Letters},
  year    = {2026},
  doi     = {10.1109/lawp.2026.3659850}
}

@article{takahashi2025channel,
  author  = {Takahashi, Riku and Ghosh, Anirban and
             Mao, Minghe and Kim, Minseok},
  title   = {{Channel Modeling and Characterization
             of Access, D2D, and Backhaul Links in a
             Corridor Environment at 300 GHz}},
  journal = {IEEE Transactions on Antennas and
             Propagation},
  year    = {2025},
  doi     = {10.1109/tap.2024.3450308}
}

@article{mao2024mimo,
  author  = {Mao, Minghe and Takahashi, Riku and
             Ghosh, Anirban and Kim, Minseok},
  title   = {{MIMO Channel Capacity Measurement in
             Open Square Hotspot Access Scenarios
             at 300 GHz}},
  journal = {IEEE Wireless Communications Letters},
  year    = {2024},
  doi     = {10.1109/lwc.2024.3430494}
}

@article{kim2026thz,
  author  = {Kim, Minseok and Takada, Jun-Ichi and
             Mao, Minghe and Kang, Che Chia and
             Du, Xin and Ghosh, Anirban},
  title   = {{THz Channels for Short-Range Mobile
             Networks: Multipath Channel Behavior and
             Human Body Shadowing Effects}},
  journal = {IEEE Communications Magazine},
  year    = {2026},
  doi     = {10.1109/mcom.001.2400694}
}

Related Publications

• IEEE TAP 2026
  M. Kim, M. Yomoda, M. Mao, N. Kuno, K. Kitao, S. Suyama, "Quasi-Deterministic Modeling of Sub-THz Band Access Channels in Street Canyon Environments," IEEE Trans. Antennas Propagat., 2026.
  DOI Link
• IEEE AWPL 2026
  M. Mao, M. Kim, "Indoor Sub-THz Channel Characterization at 154 GHz and 300 GHz in a Conference Room Scenario," IEEE Antennas Wireless Propagat. Lett., 2026.
  DOI Link
• IEEE Commag 2026
  M. Kim, J. Takada, M. Mao, C. C. Kang, X. Du, A. Ghosh, "THz Channels for Short-Range Mobile Networks: Multipath Channel Behavior and Human Body Shadowing Effects," IEEE Commun. Mag., 2026.
  DOI Link
• IEEE TAP 2025
  R. Takahashi, A. Ghosh, M. Mao, M. Kim, "Channel Modeling and Characterization of Access, D2D, and Backhaul Links in a Corridor Environment at 300 GHz," IEEE Trans. Antennas Propagat., vol. 73, 2025.
  DOI Link
• IEEE WCL 2024
  M. Mao, R. Takahashi, A. Ghosh, M. Kim, "MIMO Channel Capacity Measurement in Open Square Hotspot Access Scenarios at 300 GHz," IEEE Wireless Commun. Lett., 2024.
  DOI Link