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A wideband blocker-resilient RF front-end with selective input-impedance matching for direct-ΔΣ-receiver architectures
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A4 Artikkeli konferenssijulkaisussa
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en
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4
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2016 IEEE Nordic Circuits and Systems Conference (NORCAS)
Abstract
This paper presents a wideband blocker-tolerant RF front-end suitable for direct-ΔΣ-E-receivers. Blockers are attenuated by providing low receiver input impedance at blocker frequencies while for desired frequency the input impedance is boosted to matched condition by providing an up-converted positive feedback from the baseband stage. RF front-end is evaluated on 28nm fully-depleted silicon-on-insulator CMOS process with current consumption of 8mA, excluding local-oscillator drive, at 1V supply voltage. Front-end is reconfigurable from 0.7-3GHz with maximum noise figure of 5dB and achieves an out-of-band 1dB compression point of 0dBm at 100MHz local oscillator frequency offset.
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Haq, F U, Englund, M, Stadius, K, Kosunen, M, Ryynänen, J, Koli, K & Östman, K B 2016, A wideband blocker-resilient RF front-end with selective input-impedance matching for direct-ΔΣ-receiver architectures. in 2016 IEEE Nordic Circuits and Systems Conference (NORCAS) ., 7792880, IEEE, IEEE Nordic Circuits and Systems Conference, Copenhagen, Denmark, 01/11/2016. https://doi.org/10.1109/NORCHIP.2016.7792880