A Low Power Ultra-Wideband RF Receiver Front-End using a Differential N-Path Notch Filter

Article Engineering, Electrical & Electronic

A 0.4-6 GHz Receiver for Cellular and WiFi Applications

Hossein Razavi et al.

Summary: A wideband RF receiver with a multi-loop architecture and innovative harmonic rejection method achieves a balance between noise and linearity. It also demonstrates improved out-of-band and in-band linearity, input matching, and stability. Fabricated in 28-nm CMOS technology, the prototype achieves a wide bandwidth with low power consumption.

IEEE JOURNAL OF SOLID-STATE CIRCUITS (2022)

Add to Collection

Article Computer Science, Hardware & Architecture

Analysis and Comparison of Low-Power 6-GHz N-Path-Filter-Based Harmonic Selection RF Receiver Front-End Architectures

Nakisa Shams et al.

Summary: N-path switching systems using switched-series R-C networks are analyzed in the context of RF receiver front-ends. The study shows that by operating at higher order harmonics of the switching frequency, it is possible to mitigate the need for an accurate low power clock at high frequencies. The proposed architecture for harmonic selection RF receivers utilizes two feed-forward N-path switching filters and harmonic recombination at the baseband. It is demonstrated that reconfiguring the harmonic recombination stage can reduce the input frequency and power consumption of the multi-phase clock generator by selecting the third harmonic of the switching frequency.

IEEE TRANSACTIONS ON VERY LARGE SCALE INTEGRATION (VLSI) SYSTEMS (2022)

Add to Collection

Article Engineering, Electrical & Electronic