Finite impulse response filters

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A 256-Element Slepian Beamforming Accelerator with Analog Compute-In-Memory Multiplication and Accumulation

A 256-Element Slepian Beamforming Accelerator with Analog Compute-In-Memory Multiplication and Accumulation 150 150
Author(s): Wei-Chun Wang, Shida Zhang, Coleman DeLude, Laith Shamieh, Nael Mizanur Rahman, Isha Chakraborty, Justin Romberg, Saibal Mukhopadhyay

Abstract:

An analog compute-in-memory Slepian beamforming accelerator is introduced for large-scale MIMO. The design performs complex-valued vector–matrix multiplication in the analog domain to project 256 I/Q inputs into a low-dimensional Slepian subspace and uses a digital backend with 4-tap FIR filters to generate one output beam. A test chip fabricated …

Published in: IEEE Solid-State Circuits Letters
Page(s): 1 – 1
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3690381
Publisher: IEEE

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A 415 μW 2.4 GHz Receiver With Third-Harmonic Time-Interleaved Passive Mixer and Reconfigurable AFIR Filter for IoT Applications

A 415 μW 2.4 GHz Receiver With Third-Harmonic Time-Interleaved Passive Mixer and Reconfigurable AFIR Filter for IoT Applications 150 150
Author(s): Zongle Ma, Yicheng Chen, Qing Li, Kai Li, Kaixue Ma, Keping Wang

Abstract:

This article presents a 2.4 GHz receiver with a third-harmonic time-interleaved passive mixer and reconfigurable analog finite-impulse-response (AFIR) filter. To improve linearity while maintaining low power consumption, a 6-path third-harmonic time-interleaved mixer with a 6-phase non-overlapping local oscillator (LO) is proposed, employing capacitive stacking and charge sharing techniques to enhance in-band …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3686034
Publisher: IEEE

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