A high IIP2 SAW-less superheterodyne receiver with multistage harmonic rejection

Journal article (2016)

Authors

I. Madadi Qualinx, Electronics -

M. Tohidian Qualinx, Electronics -

Koen Cornelissens M4S/Hisilicon

Patrick Vandenameele M4S/Hisilicon

R.B. Staszewski University College Dublin

Research Group

Electronics () (TU Delft)

DOI: https://doi.org/10.1109/JSSC.2015.2504414

Receiver Discrete-time Superheterodyne IIP2 Bandpass filter (BPF) Charge-sharing Process-scalable Surface acoustic wave (SAW)-less

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Published Date

2016

Language

English

Reuse Rights

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Faculty

Electrical Engineering, Mathematics and Computer Science

Department

Microelectronics

Research Group

Electronics

Abstract

In this paper, we propose and demonstrate the first fully integrated surface acoustic wave (SAW)-less superheterodyne receiver (RX) for 4G cellular applications. The RX operates in discrete-time domain and introduces various innovations to simultaneously improve noise and linearity performance while reducing power consumption: a highly linear wideband noise-canceling low-noise transconductance amplifier (LNTA), a blocker-resilient octal charge-sharing bandpass filter, and a cascaded harmonic rejection circuitry. The RX is implemented in 28-nm CMOS and it does not require any calibration. It features NF of 2.1-2.6 dB, an immeasurably high input second intercept point for closely-spaced or modulated interferers, and input third intercept point of 8-14 dBm, while drawing only 22-40 mW in various operating modes.

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