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A 3.54 nJ/bit receiver front-end for 3-5 GHz impulse radio UWB is proposed in this paper. Noncoherent receiver architecture enables the implementation of a low cost, low power and low complexity receiver. Current-reuse technique is employed in the LNA to reduce the power consumption while achieving high gain. The designed LNA can achieve 40 dB voltage gain and the receiver front-end can achieve a...
A low power wireless telemetry system for capsule endoscopy is presented in this paper. The proposed system is based on impulse-radio ultra-wideband (IR-UWB) technology, it consists of a UWB transmitter utilizing fast on-off LC VCO and a non-coherent UWB receiver using energy detection. The whole system is implemented in 0.18-μm CMOS process and integrated in a single chip with 3 mm × 4 mm chip size...
This paper presents a low-power CMOS RF front-end for 3-5 GHz non-coherent impulse-radio ultra-wideband (IR-UWB) receiver. The proposed front-end comprises a variable-gain low noise amplifier (VG-LNA), an active balun and an analog squarer. Current reuse topology has been adopted in both VG-LNA and active balun to reduce the power consumption. The squarer design is based on the quadratic law of MOSFET...
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