Xiaohua Yu

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This paper presents a reconfigurable multimode low-noise amplifier (LNA) capable of single-band, concurrent dual-band, and ultra-wideband operation. The multimode operation is realized by incorporating a switched multitap transformer into the input matching network of an inductively degenerated common source amplifier. The proposed LNA achieves single band(More)
This paper presents a reconfigurable multimode LNA capable of single band, concurrent dual-band, and ultra-wideband operation. The multi-mode operation is realized by incorporating a switched multi-tap transformer into the input matching network of an inductively degenerated common source amplifier. The proposed LNA achieves single band matching at 2.8 GHz,(More)
We certify that this work has passed the scholastic standards requested by the Information and Communications University as a Abstract Wireless sensor network is an emerging technique attracting more and more attentions. In the network, each sensor node is required to consume less than 100µW in order to operate over years with only an AA battery or through(More)
A new transimpedance amplifier (TIA), which divides the feedback resistor into shunt- and series-connection to the current source of the buffer, is proposed. The proposed TIA provides high linearity without sacrifice in gain and noise performances as the series-connected feedback resistor does not contribute to linearity degradation. The advantage of the(More)
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