Zhimeng Xu

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In this paper, a novel detection algorithm based on variance detection (VD) is proposed for non-coherent impulse radio (IR) ultra-wideband (UWB) receivers. In the VD-based detection algorithm, after the received IR UWB signals are squared, their variance instead of their mean is measure to recover information bits. Computer simulations show that as compared(More)
UWB systems based on impulse radio (IR-UWB) have the potential to provide very low duty cycles and low power consumption. Furthermore, IR-UWB has the advantages of being able to carry out precision localization and to handle multi-path signals. Consequently, with its low implementation complexity, it is an ideal candidate for sensor network applications. In(More)
UWB communication systems demand for ultra-wideband filters of bandwidth of up to 110%, which is challenging to achieve for a compact and low-cost design with conventional materials. This paper presents a novel ultra-wideband (UWB) bandpass filter design using composite right/left-handed transmission line (CRLH TL) structure. In addition, to further(More)