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Haider, S.N. (author)Sensors such as phased array radars play a crucial role in public safety. They are unavoidable for surveillance, threat identification and post-disaster management. However, different scenarios impose immensely diverse requirements for these systems. Phased array systems occupy a large space. In addition, if different antenna systems are needed...doctoral thesis 2015
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- Shenario Ezhil Valavan, A. (author) doctoral thesis 2014
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- Chan, W.L. (author) doctoral thesis 2010
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Wijnholds, S.J. (author)The radio astronomical community is currently developing and building several new radio telescopes based on phased array technology. These telescopes provide a large field-of-view, that may in principle span a full hemisphere. This makes calibration and imaging very challenging tasks due to the complex source structures and direction dependent...doctoral thesis 2010
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Simeoni, M. (author), Lager, I.E. (author), Coman, C.I. (author), Roedener, A.G. (author)A method for ensuring polarization agility in conjunction with beam steering in planar array antennas is proposed. It relies on interleaving two subarrays with orthogonal, linear polarizations that, together, can generate arbitrary polarization states: adjustable linear, elliptical, and left- or right-handed circular. The complexity of the...journal article 2009
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Van der Avoort, C. (author), Pereira, S.F. (author), Braat, J.J.M. (author), Den Herder, J.W. (author)In optical aperture-synthesis imaging of stellar objects, different beam combination strategies are used and proposed. Coaxial Michelson interferometers are very common and a homothetic multiaxial interferometer is recently realized in the Large Binocular Telescope. Laboratory experiments have demonstrated the working principles of two new...journal article 2007
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- Stulemeijer, J. (author) doctoral thesis 2002