Antennas

An IEEE802.15.4a/z/ab compatible IR-UWB 2TRX with full-duplex radar sensing and aliasing suppressing semi-synchronous TX

An IEEE802.15.4a/z/ab compatible IR-UWB 2TRX with full-duplex radar sensing and aliasing suppressing semi-synchronous TX 150 150

Abstract:

This letter presents an 802.15.4ab/a/z compatible IR-UWB 2TRX highlighting a full-duplex-based radar, a semi-synchronous TX and TRX’s digital baseband. A capacitive tuning technique proposed in the electrical balance duplexer (EBD)-based duplex RF front-end (RF-FE) improves TX-antenna insertion loss by 1.4dB and the sensitivity of TX-RX isolation …

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1-Transistor-Dynamic Random Access Memory as Reservoir for Temporal Signal Processing

1-Transistor-Dynamic Random Access Memory as Reservoir for Temporal Signal Processing 150 150

Abstract:

Reservoir computing (RC), a computational paradigm inspired by the recurrent neural networks (RNNs), offers a promising framework for efficient temporal processing with minimal training overhead. Hardware implementation of RC primitive requires devices that exhibit short-term memory, nonlinearity, and energy-efficient state-switching dynamics. While emerging nonvolatile memory (eNVM) technologies have been explored …

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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

Abstract:

An analog compute-in-memory (CIM) Slepian beamforming (SBF) accelerator is introduced for large-scale multi-input–multi-output (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. …

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Comparative Analysis of Sense Amplifier Circuits for Hybrid CMOS-MTJ CIM Architecture

Comparative Analysis of Sense Amplifier Circuits for Hybrid CMOS-MTJ CIM Architecture 150 150

Abstract:

Spin-transfer torque magnetic tunnel junction (STT-MTJ) is widely recognized as a promising device for computation-in-memory (CIM) architecture due to its advantages, such as simple nonvolatile structure, CMOS compatibility, and scalability. In spite of the advantages, achieving reliable and efficient sensing of STT-MTJ remains a design challenge. This work presents a …

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A CMOS Probabilistic Computing Chip With Hardware-Aware Learning

A CMOS Probabilistic Computing Chip With Hardware-Aware Learning 150 150

Abstract:

This work demonstrates a compact probabilistic computing system based on a physics-inspired probabilistic bit (p-bit) architecture with 440 interacting spins configured in a chimera graph and occupying 0.44 mm2 of silicon area. Area efficiency is achieved through a current-mode neuron update circuit and a mixed-signal design approach that integrates pitch-matched standard-cell analog …

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A 760 mVPP-Input-Range, 103.6dB-SNDR Direct-Digitization Sensor Readout With Pseudo-Differential Integrator and Impedance-Equalized RDAC

A 760 mVPP-Input-Range, 103.6dB-SNDR Direct-Digitization Sensor Readout With Pseudo-Differential Integrator and Impedance-Equalized RDAC 150 150

Abstract:

A high-precision, direct-digitization sensor readout (DD-RO) based on a continuous-time delta-sigma modulator (CT- $\Delta \Sigma $ M) is presented. The proposed DD-RO incorporates several key innovations to enhance performance. First, a pseudo-differential current-balancing integrator (PD-CBI) significantly extends the linear input range, whereas its intrinsically limited common-mode input range and CMRR are …

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A 3.47 NEF 175.2-dB FoMs Direct Digitization Front-End Featuring Delta Amplification Noise-Shaping SAR ADC for Biosignal Acquisition

A 3.47 NEF 175.2-dB FoMs Direct Digitization Front-End Featuring Delta Amplification Noise-Shaping SAR ADC for Biosignal Acquisition 150 150

Abstract:

This article presents a direct-digitization interface for ExG bio-signals’ readout that simultaneously achieves a high dynamic range (DR) and a low noise-efficiency factor (NEF). The proposed delta amplification (DA) and feedback cancellation technique reduce both the input and output ranges of the first amplifier, thus allowing the use of a …

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A 10.1-ENOB 8kHz Bandwidth 95–250nW PVT-Robust DT Level-Crossing ADC for Sparse and Generic Signals

A 10.1-ENOB 8kHz Bandwidth 95–250nW PVT-Robust DT Level-Crossing ADC for Sparse and Generic Signals 150 150

Abstract:

This article presents an event-driven discrete-time level crossing analog-to-digital converter (DT-LCADC) that is energy-efficient in converting both sparse and generic signals and is robust against process voltage and temperature (PVT) variations. The proposed DT-LCADC uses the comparator delay to classify each level-crossing event as slow (produced by a small input …

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A 28-nm System-in-One-Macro Computing-in-Memory Chip Utilizing Leakage-Eliminated 2T1C and Capacitor-Over-Logic 1T1C eDRAM

A 28-nm System-in-One-Macro Computing-in-Memory Chip Utilizing Leakage-Eliminated 2T1C and Capacitor-Over-Logic 1T1C eDRAM 150 150

Abstract:

Computing-in-memory (CIM) is a promising paradigm for energy- and area-efficient implementation of the heavy general matrix multiplication (GEMM) operations, especially in the evolving deep learning algorithms. Though existing CIM macros have demonstrated remarkable energy/area efficiency, the corresponding metrics of the system-level CIM chips degrade due to the peripheral components, …

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