N-Path Filters and Mixer-First Receivers–A Review
E Klumperink, B Nauta - IC Design Insights-from Selected …, 2022 - api.taylorfrancis.com
Given the plethora of low GHz radio standards and frequency bands, multi-band software
defined radio receivers are coming up. Such digital intensive radios are implemented in …
defined radio receivers are coming up. Such digital intensive radios are implemented in …
A passive mixer-first receiver with digitally controlled and widely tunable RF interface
A software-defined radio (SDR) receiver with baseband programmable RF bandpass filter
(BPF) and complex impedance match is presented. The passive mixer-first architecture used …
(BPF) and complex impedance match is presented. The passive mixer-first architecture used …
Tunable high-Q N-path band-pass filters: Modeling and verification
A Ghaffari, EAM Klumperink… - IEEE Journal of Solid …, 2011 - ieeexplore.ieee.org
A differential single-port switched-RC N-path filter with band-pass characteristic is proposed.
The switching frequency defines the center frequency, while the RC-time and duty cycle of …
The switching frequency defines the center frequency, while the RC-time and duty cycle of …
Implications of passive mixer transparency for impedance matching and noise figure in passive mixer-first receivers
In this paper, a class of passive mixer-first, LNA-less receivers is analyzed in depth.
Quadrature passive mixers are shown to present the impedance of their baseband port to …
Quadrature passive mixers are shown to present the impedance of their baseband port to …
A 52 W Wake-Up Receiver With 72 dBm Sensitivity Using an Uncertain-IF Architecture
NM Pletcher, S Gambini… - IEEE Journal of solid-state …, 2008 - ieeexplore.ieee.org
A dedicated wake-up receiver may be used in wireless sensor nodes to control duty cycle
and reduce network latency. However, its power dissipation must be extremely low to …
and reduce network latency. However, its power dissipation must be extremely low to …
Design of active N-path filters
M Darvishi, R van der Zee… - IEEE journal of solid-state …, 2013 - ieeexplore.ieee.org
A design methodology for synthesis of active N-path bandpass filters is introduced. Based
on this methodology, a 0.1-to-1.2 GHz tunable 6th-order N-path channel-select filter in 65 …
on this methodology, a 0.1-to-1.2 GHz tunable 6th-order N-path channel-select filter in 65 …
Analysis and optimization of direct-conversion receivers with 25% duty-cycle current-driven passive mixers
A Mirzaei, H Darabi, JC Leete… - IEEE Transactions on …, 2010 - ieeexplore.ieee.org
The performance of zero-IF receivers with current-driven passive mixers driven by 25% duty-
cycle quadrature clocks is studied and analyzed. It is shown that, in general, these receivers …
cycle quadrature clocks is studied and analyzed. It is shown that, in general, these receivers …
A 65 nm CMOS quad-band SAW-less receiver SoC for GSM/GPRS/EDGE
A Mirzaei, H Darabi, A Yazdi, Z Zhou… - IEEE Journal of Solid …, 2011 - ieeexplore.ieee.org
A quad-band 2.5 G receiver is designed to replace the front-end SAW filters with on-chip
bandpass filters and to integrate the LNA matching components, as well as the RF baluns …
bandpass filters and to integrate the LNA matching components, as well as the RF baluns …
Optimized design of N-phase passive mixer-first receivers in wideband operation
Recent developments in CMOS passive mixers have demonstrated a number of new and
useful capabilities, including dynamic RF port impedance control and filter up-conversion …
useful capabilities, including dynamic RF port impedance control and filter up-conversion …
Widely Tunable 4th Order Switched G-C Band-Pass Filter Based on N-Path Filters
M Darvishi, R van der Zee… - IEEE Journal of Solid …, 2012 - ieeexplore.ieee.org
A widely tunable 4th order BPF based on the subtraction of two 2nd order 4-path passive-
mixer filters with slightly different center frequencies is proposed. The center frequency of …
mixer filters with slightly different center frequencies is proposed. The center frequency of …