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A UWB communication transceiver(TRX) named `WiX(Wireless eXpress) TRX' is proposed, which is featured with three WiMedia UWB RF channels and a new small planar type OMUX, for high data rate TX and RX. Each WiMedia UWB RF channel can treat more than 500Mbps wireless data, and the OMUX combines and splits the output and input of three WiMedia UWB RF channels in the TX and RX modes, respectively. The...
This paper presents an UWB baseband receiver including VGAs, LPFs, FGAs and IO buffers, fully integrated in 130 nm CMOS process. The voltage gain range by two VGAs and a FGA for each I/Q path is from -5 to +65 dB providing a dynamic range of 70 dB. For a more stable operation against variations in process, voltage and temperature (PVT), the cut-off frequencies of our receiver can vary from 183 to...
This paper presents an Active-RC low-pass filter for WiMedia UWB RF transceiver. Butterworth type is used for meeting the attenuation at stop band and insertion loss for pass band of WiMedia UWB system. 3 bits tuning block is used for matching needed bandwidth and Q factor. The cutoff bandwidth is 290 MHz and current consumption is about 9.7 mA for QPSK modulation. It shows good operation in the RF...
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