2023 article

Analysis and Design of Baseband Circuits for Higher-Order Reflection-Mode N-Path Filters

Ellington, C. J., Hari, S., & Floyd, B. A. (2023, October 20). IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS.

By: C. Ellington n, S. Hari n & B. Floyd n‚ÄČ

author keywords: Mixers; Baseband; Mathematical models; Filtering theory; Admittance; Reflection; Impedance; Software-defined radio; N-path; reflection-mode; tunable filter; higher-order; RF; mm-wave; X-band; baseband techniques; Butterworth; Chebyshev; elliptic; Cauer
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11. Sustainable Cities and Communities (OpenAlex)
Source: Web Of Science
Added: November 13, 2023

A design methodology for the synthesis of baseband circuits for higher-order reflection-mode N-path filters (RMNFs) is presented. Beginning with a linear time-invariant (LTI) model, equations are formulated that provide intuition for the designer with regard to signal and noise transfer through the RMNF. Building upon the mathematical foundation of the LTI model, an interdependence between signal and noise is explored and addressed. Furthermore, two baseband synthesis approaches are presented and connected with other state-of-the-art works. Finally, a 12-18GHz RMNF design with third-order selectivity (18dB/octave) is performed with analytical, simulated, and measured hardware results to validate the presented methodology.