Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Aki Karttunen Name of the doctoral dissertation Millimetre and submillimetre wave antenna design using ray tracing Publisher School of Electrical Engineering Unit Department of Radio Science and Engineering Series Aalto University publication series DOCTORAL DISSERTATIONS 127/2013 Field of research Radio Engineering Manuscript...

The redshifted spectral line radiation emitted from both atomic fine-structure and molecular rotational transitions in the interstellar medium (ISM) of high-redshift galaxies can be detected in the centimetre, millimetre and submillimetre wavebands. Here we predict the counts of galaxies detectable in an array of molecular and atomic lines. This calculation requires a reasonable knowledge of bo...

Millimetre-wave (mmWave) technology is a promising candidate for meeting the intensifying demand for ultra fast wireless connectivity, especially in high-end enterprise networks. Very narrow beam forming is mandatory to mitigate the severe attenuation specific to the extremely high frequency (EHF) bands exploited. Simultaneously, this greatly reduces interference, but generates problematic comm...

The formation of C60 nanowhiskers via the liquid-liquid interfacial precipitation technique presents a low-cost means of fabricating nanostructured fibres for use as active or passive elements in a number of possible applications. Recent measurements [9] have reported encouraging electrical characteristics that indicate the possibility of using C60 nanowhiskers to realise electronic devices wit...

Vehicles, houses, small buildings 2-3m but in the longer term, residual errors and biases integrate up into unacceptably large position errors. Under these conditions, millimetre wave radar can be applied in a number of ways to improve the navigation accuracy. It can be used as a Doppler sensor to improve the velocity estimation accuracy by measuring the ground speed, or it can be used to produ...

Department of Electrical and Computer Engineering, Faculty of Engineering, International Islamic University Malaysia. Corresponding Author: Abdulwaheed Musa ___________________________________________________________________________ Abstract The effects of dust storms on propagation of electromagnetic wave at millimeter wave band are investigated. The propagation at millimeter wave band is affe...