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Mr Jonathan Hammler's Outputs (3)

Free-space material characterisation at terahertz frequencies using a vector network analyser (2015)
Presentation / Conference Contribution
Hammler, J., Gallant, A., & Balocco, C. (2015). Free-space material characterisation at terahertz frequencies using a vector network analyser. . https://doi.org/10.1109/ursi-at-rasc.2015.7302827

While dielectric properties of many materials have been extensively characterised at low frequencies and into the microwave region of the electromagnetic spectrum, published information is much sparser in the THz region. Knowledge of permittivity is... Read More about Free-space material characterisation at terahertz frequencies using a vector network analyser.

3D polymer structures with variable permittivity at terahertz frequencies (2015)
Presentation / Conference Contribution
Hammler, J., Pan, Y., Gallant, A., & Balocco, C. (2015). 3D polymer structures with variable permittivity at terahertz frequencies. In 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 23-28 August 2015, Hong Kong (1-2). https://doi.org/10.1109/irmmw-thz.2015.7327458

Titanium dioxide (TiO2) powder has been blended with polydimethylsiloxane (PDMS) to manufacture a composite polymer with variable permittivity. Vector network analyser measurements taken between 0.75-1.1 THz quantify the relationship between TiO2 con... Read More about 3D polymer structures with variable permittivity at terahertz frequencies.

Simple de-embedding and simulation technique to find permittivity with a THz vector network analyser (2015)
Presentation / Conference Contribution
Hammler, J., Gallant, A., & Balocco, C. (2015). Simple de-embedding and simulation technique to find permittivity with a THz vector network analyser. In 40th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 23-28 August 2015, Hong Kong (1-2). https://doi.org/10.1109/irmmw-thz.2015.7327822

A simple and fast method for measuring the dielectric constant with a THz vector network analyser (VNA) has been developed. A numeric de-embedding technique removes free-space propagation effects, then simulation of Maxwell's equations simultaneously... Read More about Simple de-embedding and simulation technique to find permittivity with a THz vector network analyser.