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An 800-MHz–6-GHz Software-Defined Wireless Receiver in 90-nm CMOS

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8 Author(s)
Bagheri, Rahim ; Dept. of Electr. Eng., California Univ., Los Angeles, CA ; Mirzaei, A. ; Chehrazi, S. ; Heidari, M.E.
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A software-defined radio receiver is designed from a low-power ADC perspective, exploiting programmability of windowed integration sampler and clock-programmable discrete-time analog filters. To cover the major frequency bands in use today, a wideband RF front-end, including the low-noise amplifier (LNA) and a wide tuning-range synthesizer, spanning over 800 MHz to 6 GHz is designed. The wideband LNA provides 18-20 dB of maximum gain and 3-3.5 dB of noise figure over 800 MHz to 6 GHz. A low 1/f noise and high-linearity mixer is designed which utilizes the passive mixer core properties and provides around +70 dBm IIP2 over the bandwidth of operation. The entire receiver circuits are implemented in 90-nm CMOS technology. Programmability of the receiver is tested for GSM and 802.11g standards

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Solid-State Circuits, IEEE Journal of  (Volume:41 ,  Issue: 12 )