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TNO Defensie en Veiligheid (author), van der Bent, G. (author), van der Graaf, M.W. (author), van Vliet, F.E. (author)
An X-band Phase Shifting Power Amplifier with sixbit phase control and 5 Watt output power has been developed and tested. The aim of the development is cost reduction for Transmit and Receive components for phased array systems. The device has been developed in the 6-inch 0.5 um power pHEMT process (PP50-11) of WIN Semiconductors. The use of...
conference paper 2007
TNO Defensie en Veiligheid (author), van Heijningen, M. (author), van Vliet, F.E. (author), Quay, R. (author), van Raay, F. (author), Kiefer, R. (author), Mueller, S. (author), Krausse, D. (author), Seelmann-Eggebert, M. (author), Mikulla, M. (author), Schlechtweg, M. (author)
In this paper the MMIC technology, design and characterization of a high power amplifier and driver amplifier MMIC at 30 GHz in AlGaN/GaN HEMT technology are presented. The MMICs are designed using CPW technology on a 390 um thick SiC substrate. The measured small-signal gain of the driver is 14 dB at 28.5 GHz and the measured output power is 28...
conference paper 2005
Bolt, R. (author), Bertuch, T. (author), Gerini, G. (author), Neto, A. (author)
In this contribution we present a highfrequency model to describe the reflections of surface waves at the edges of a truncated and grounded dielectric stratification. This model can eventually be integrated with an existing model that is able to analyse realistic finite open-ended planar waveguide arrays. This latter model has proven to be an...
conference paper 2004