The characterisation of the cooking oils presents a significant challenge due to minor changes in their dielectric behaviour. In this paper, new metamaterial-based sensor incorporating split-ring resonator (SRR) with microstrip transmission line is presented characterise oils. design demonstrates metamaterial characteristics negative permittivity and permeability simultaneously at resonance fre...

Millimetre-wave frequencies are defined as one of the front-runner contenders for body-centric wireless communication. In this study, low-profile antenna with substrate integrated waveguide (SIW) has been proposed that operate in band millimetre-wave frequency centred at 60 GHz. The implemented use FR4 εr and tangent loss 4.3 0.025, respectively. height size 1.5875 mm 20 x mm, performance is ev...

[1] A ground-based millimetre wave radar, AVTIS (Allweather Volcano Topography Imaging Sensor), has been developed for topographic monitoring. The instrument is portable and capable of measurements over ranges up to 7 km through cloud and at night. In April and May 2005, AVTIS was deployed at Arenal Volcano, Costa Rica, in order to determine topographic changes associated with the advance of a ...