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A fully-integrated reconfigurable dual-band (760–960 MHz and 2.4–2.5 GHz) transceiver (TRX) for short range wireless communications is presented. The TRX consists of two individually-optimized RF front-ends for each band and one shared power-scalable analog baseband. The sub-GHz receiver has achieved the maximum 75 dBc 3rd-order harmonic rejection ratio (HRR3) by inserting a Q-enhanced notch filtering...
Ultra-wideband (UWB) technology has received great attention in recent short-range communication systems and been considered one of the potential candidates for upcoming IEEE 802.15.6 body area network (BAN) standard. High penetration capability and high precision ranging with a wide bandwidth of up to 7.5GHz (from 3.1GHz to 10.6GHz) make it easy to image the organs of human body for biomedical applications...
A low power monolithic reconfigurable direct-conversion receiver RF front-end for 802.11a/b/g applications is presented. It consists of a reconfigurable LNA and a high linearity quadrature down-converter. The LNA could be switched between two operation bands by utilizing a fully-differential switchable inductor. With a positive feedback, the noise figure of the common gate LNA is lowered down. The...
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