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Abstract-The paper proposes a codebook design to support beamforming mechanism in a wide band millimeter-wave 60 GHz wireless personal area networks (60 GHz WPANs) in a realistic millimeter-wave environment. The codebooks are designed symmetrically in order to mitigate the possible beam shift due to the large differences of wave lengthes at different sub-bands of a wide band communication system....
Beam steering antenna is expected in 60 GHz wireless communication system to improve the signal to noise ratio and obtain high gain with wide cover range for high speed WPAN application. In this paper, patch antenna arrays with planar topology are investigated by synthesizing the network losses and devices such as phase shifters. The investigation results can provide a valuable guide line for the...
This paper presents a novel inversion / non-inversion zero-overhead dynamic optically reconfigurable gate array that can extract good factors from architectures of both optically differential reconfigurable gate arrays and dynamic optically reconfigurable gate arrays. A full VLSI design using a 0.35 mum CMOS process technology is presented. Based on that presentation, three factors are discussed:...
This paper reports a parallel monitoring method for single cell metabolic and respiration activity by using a microarrayed pH and oxygen sensor. Optical sensor film was prepared by immobilizing fluorescein isothiocyanate (for pH sensor array) or dichlorotris (1,10-phenanthroline) ruthenium (II) (for oxygen sensor array) onto a diamond like carbon sputtered slide glass. Micro well (10 mum i.d.) array...
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