Asgeir Wien

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The EM design of a coplanar RF cross with well isolated signal paths in a frequency range from DC up to 40 GHz is described. The cross is designed for a MEMS switch matrix where the different signal paths have to be isolated against each other. This allows one to have several 'on-state' signal paths at the same time in the matrix. One signal path is routed(More)
A new process, the biofilm-activated sludge innovative nitrification (BASIN) process, consisting of a moving-bed biofilm reactor (MBBR) with separate heterotrophic wasting, followed by an activated-sludge process, has been proposed to reduce the volumetric requirements of the activated-sludge process for nitrification. The basic principle is to remove(More)
Computational techniques have reached a level of maturity which enables their use for large and complex applications. This paper introduces a new XPU calculation technique (software accelerated computing on modern CPUs) which speeds up Finite Difference Time Domain (FDTD) simulations on modern consumer PCs and server workstations. This allows the usage of(More)
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