In general, reciprocity requires that signals travel in the same manner in both forward and
reverse directions. It governs the behaviour of the majority of electronic circuits and …

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 …

Recent research has explored the spatiotemporal modulation of permittivity to break Lorentz
reciprocity in a manner compatible with integrated-circuit fabrication. However, permittivity …

Nonreciprocal components, such as isolators and circulators, are critical to wireless
communication and radar applications. Traditionally, nonreciprocal components have been …

This paper presents a 32-channel analog filterbank for front-end signal processing in sound
classification systems. It employs a passive N-path switched capacitor topology to achieve …

As passive mixers (N-path filters) are being used more frequently and in more applications, it
becomes increasingly important to understand how various non-idealities affect the …

This paper presents time interleaving as an approach to improve the performance of
programmable receiver front ends based on filtering-by-aliasing. Using two parallel …

This letter presents a mixer-first RF receiver that: 1) nominally operates in a low-NF-path
filter mode; 2) features an on-chip harmonic blocker detection circuit running in the …

This article presents a periodically time-varying (PTV) noise cancellation technique for
filtering-by-aliasing (FA) receivers. The key to the proposed technique is the use of a time …

This paper presents a programmable receiver frontend that uses periodically time-varying
components. A sharp programmable filtering response was achieved at RF using a linear …