Microstrip Devices for Millimetric Frequencies

Sisson, M.J.; Brigginshaw, P.M.; Wood, P.N.; Brown, Paula R.; Hansom, A.M.; Nicholls, M.R.

doi:10.1109/mwsym.1982.1130665

Cited by 5 publications

(1 citation statement)

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“…There is a high demand for an increase in the data rate and the available spectrum for realizing 5G cellular technology [1], making the use of higher frequencies inevitable [2,3]. At micromillimeter and millimeter wave frequencies, transmission mediums, such as coaxial and microstrip lines, bear high insertion loss [4,5]. Waveguide technology is an attractive alternative for use at higher frequencies since it possesses lower insertion loss (see, e.g., [6]).…”

Section: Introductionmentioning

confidence: 99%

Analysis of Transmission Properties of Sludge Biochar Composites in the C-Band

2023

RSL

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In order to pave the way for the widespread use of eco-friendly materials for novel applications, there is a growing need for morphological, mechanical and electrical, and microwave characterization techniques. The measurement of scattering parameters is an accurate technique for the microwave characterization of novel materials, but it requires a number of components, including waveguides, adapters, and so on. The band of measurements is also limited to the working band of the waveguide used. A method of retrieving waveguide scattering parameters from permittivity values is devised. The method is validated with measurements of the scattering parameters in a waveguide. The method is tested with composites based on biochar derived from sewage sludge and a standard epoxy sample. The addition of biochar considerably reduces transmission scattering and is found to be a suitable candidate for filling composite materials.

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