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Waveguide T-junction and directional couplers are widely used in microwave/millimeter wave systems, because its circuit is simply and easily to be designed and fabricated. In this paper, a ka-band E-plane rectangular waveguide power divider is proposed and optimized. The first level of the network is the T-junction, which can halve the power for the first(More)
This paper presents a 1-V class-E power amplifier for Wireless Sensor Network in a 0.18-μm CMOS process. The design exploits a cross-coupled structure to achieve high operating frequency and reduce the size of the transistors. Pairs of digital MOS switches manipulate the cross-coupled structure to work or not. To control the output power, a topology(More)
The aim of social network analysis is to search for implicit, previously unknown, and potentially useful information. And community discovery is an important method to obtain these information. Label propagation algorithm can provide an efficient way to discover communities in a large-scale network. In each iteration, the label for each vertex is replaced(More)
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