Jason K. Eshraghian;Arindam Basu;Corey Lammie;Shih-Chii Liu;Priydarshini Panda
{"title":"Guest Editorial Dynamical Neuro-AI Learning Systems: Devices, Circuits, Architecture and Algorithms","authors":"Jason K. Eshraghian;Arindam Basu;Corey Lammie;Shih-Chii Liu;Priydarshini Panda","doi":"10.1109/JETCAS.2023.3343932","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3343932","url":null,"abstract":"This Special Issue of IEEE Journal on Emerging and Selected Topics in Circuits and Systems (JETCAS) is dedicated to demonstrating the latest research progress on dynamical neuro-artificial intelligence (AI) learning systems that bridge the gap between devices, circuits, architectures, and algorithms. The growing demand for AI has spurred the development of systems that: 1) co-localize computation and memory; 2) enhance circuits and devices optimized for operations prevalent in deep learning; and 3) implement lightweight and compressed machine learning models thereby achieving greater accuracy with less resources.","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"13 4","pages":"873-876"},"PeriodicalIF":4.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10375873","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139060306","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IEEE Circuits and Systems Society Information","authors":"","doi":"10.1109/JETCAS.2023.3340568","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3340568","url":null,"abstract":"","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"13 4","pages":"C3-C3"},"PeriodicalIF":4.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10375870","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139060225","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems Publication Information","authors":"","doi":"10.1109/JETCAS.2023.3340572","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3340572","url":null,"abstract":"","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"13 4","pages":"C2-C2"},"PeriodicalIF":4.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10375872","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139060316","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems Information for Authors","authors":"","doi":"10.1109/JETCAS.2023.3340570","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3340570","url":null,"abstract":"","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"13 4","pages":"1148-1148"},"PeriodicalIF":4.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10375871","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139060167","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"TechRxiv: Share Your Preprint Research with the World!","authors":"","doi":"10.1109/JETCAS.2023.3345229","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3345229","url":null,"abstract":"","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"13 4","pages":"1147-1147"},"PeriodicalIF":4.6,"publicationDate":"2023-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10375845","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139060168","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Robert Nericua;Ke Wang;He Zhu;Roberto Gómez-García;Xi Zhu
{"title":"Low-Loss and Compact Millimeter-Wave Silicon-Based Filters: Overview, New Developments in Silicon-on-Insulator Technology, and Future Trends","authors":"Robert Nericua;Ke Wang;He Zhu;Roberto Gómez-García;Xi Zhu","doi":"10.1109/JETCAS.2023.3345476","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3345476","url":null,"abstract":"This paper presents an overview of Silicon-based millimeter-wave (mm-wave) passive devices for bandpass and bandstop filtering applications, while also reporting originally-conceived filter developments and future trends. First of all, the state-of-the-art on mm-wave low-loss bandpass filters (BPFs) is covered, and new BPF designs are shown. The engineered BPFs employ a center-tapped ring architecture with shunt-connected capacitors to realize a standard 2nd-order baseline BPF design, which is subsequently scaled to 30-GHz and 60-GHz operational frequencies. To increase the selectivity as well as the stopband rejection levels of this baseline BPF, the in-series cascade connection of the baseline BPF units is used for a higher-order BPF realization. For experimental-validation purposes, a total of four mm-wave BPFs based on these design strategies are implemented, fabricated in 45-nm Silicon-on-Insulator (SOI) complementary-metal-oxide-semiconductor-(CMOS) technology, and tested. Afterward, a review of Silicon-based-integrated bandstop filters (BSFs) operating in the mm-wave region is provided, which includes both reflective-type and reflectionless/absorptive filter realizations for RF-interference-suppression in highly-congested electromagnetic (EM) environments. Finally, future research trends in the Silicon-based-integrated filter area are discussed. They are expected to play a key role in the development of modern radio-frequency (RF) front-ends for emerging beyond 5G and EM-sensing scenarios.","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"14 1","pages":"30-40"},"PeriodicalIF":4.6,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140123558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chun Wang;Pin-Chun Chiu;Chun-Lin Ko;Sheng-Hsiang Tseng;Chun-Hsing Li
{"title":"A 340-GHz THz Amplifier-Frequency-Multiplier Chain With 360° Phase-Shifting Range and its Phase Characterization","authors":"Chun Wang;Pin-Chun Chiu;Chun-Lin Ko;Sheng-Hsiang Tseng;Chun-Hsing Li","doi":"10.1109/JETCAS.2023.3345358","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3345358","url":null,"abstract":"A 340-GHz compact terahertz (THz) amplifier-frequency-multiplier chain (AMC) offering a full 360° phase shifting range for phased-array applications is proposed in this paper. The AMC comprises an 85 -GHz phase-shifter-embedded (\u0000<inline-formula> <tex-math>$Delta varphi $ </tex-math></inline-formula>\u0000-embedded) power amplifier (PA) and a high-output-power frequency quadrupler (FQ). The PA is equipped with multifunctional impedance matching networks (M-IMNs) that can simultaneously provide balun, impedance transformation, and phase-shifting functions. Analytic expressions have been derived to provide design guidelines for the M-IMNs. With the integrated M-IMNs, the proposed PA can concurrently deliver high output power and a phase shift exceeding 90° in a compact chip area. The proposed FQ can achieve optimal impedance matching at second and fourth harmonic frequencies, leading to the output power enhancement of 2.6 dB. Furthermore, the output phase of the PA is quadrupled by the FQ, resulting in the output signal of the AMC with a full 360° phase-shifting capability. A measurement setup for characterizing the phase of a THz signal is also presented. Implemented in a 40-nm CMOS technology without ultra-thick metal layers available, the proposed THz AMC achieves a peak output power of −3.5 dBm at 368 GHz with a conversion gain of 1.8 dB and a 3-dB bandwidth from 340 to 376 GHz. The output phase can continuously vary over 360° within the 324 to 346 GHz frequency range. The phase noise of the output signal at 346 GHz is −105 dBc/Hz at a 10-MHz offset frequency. The proposed 340-GHz AMC consumes 215.1 mW from a 0.9-V supply.","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"14 1","pages":"52-66"},"PeriodicalIF":4.6,"publicationDate":"2023-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140123406","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"A 11.3–16.6-GHz VCO With Constructive Switched Magnetic Coupling in 65-nm CMOS","authors":"Yuetong Lyu;Changwenquan Song;Pei Qin;Liang Wu","doi":"10.1109/JETCAS.2023.3344510","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3344510","url":null,"abstract":"Conventional transformer-based magnetic tuning has demonstrated dual-band or even multi-band operation for voltage-controlled oscillators (VCOs). However, the destructive magnetic coupling employed introduces implicit loss to the transformer thus degrading its quality factor (Q), and achieves a continuous frequency coverage resulting in inferior performance. To address this issue, this paper proposes a constructive switched magnetic coupling (CSMC) technique, realizing dual-band operation with the Q improvement into one band due to the in-phase coupling and the explicit switch. For validation, a transformer employing the CSMC technique is designed and deployed in a dual-band VCO design. Fabricated in a 65-nm CMOS process, the VCO is measured with an oscillation frequency range of 37.8%, from 11.3 to 16.6 GHz, while consuming 2.5-mW from a 0.65-V voltage supply. Within the entire frequency coverage, the measured phase noise ranges from −129.6 to −123.7 at 10-MHz offset, resulting in FoM of 186-192.1 dBc/Hz. The core area of the chip is \u0000<inline-formula> <tex-math>$0.43times 0.25$ </tex-math></inline-formula>\u0000 mm2 excluding pads.","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"14 1","pages":"133-141"},"PeriodicalIF":4.6,"publicationDate":"2023-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140123365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sudipta Chakraborty;Gayatri Neeharika Sreepada;Michael Heimlich;Anand K. Verma
{"title":"Compact Transverse-Resonance Low-Pass Filter With Wide Stop-Band Rejection Implemented in Gallium Arsenide Technology","authors":"Sudipta Chakraborty;Gayatri Neeharika Sreepada;Michael Heimlich;Anand K. Verma","doi":"10.1109/JETCAS.2023.3340957","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3340957","url":null,"abstract":"This work reports three designs of transverse resonance (TR)-based high-performance compact 5-pole Butterworth low-pass filters (TR-LPFs) at the cut-off frequency (\u0000<inline-formula> <tex-math>$f_{c}$ </tex-math></inline-formula>\u0000) 10.5 GHz in \u0000<inline-formula> <tex-math>$0.15~mu text{m}$ </tex-math></inline-formula>\u0000 Gallium Arsenide (GaAs) pHEMT technology, with a chip size of 0.82 mm \u0000<inline-formula> <tex-math>$times0.87$ </tex-math></inline-formula>\u0000 mm. Two fabricated TR-LPFs have 20 dB, 30 dB, 40 dB, and 50 dB attenuation levels with rejection bandwidths of (54 GHz, 54 GHz), (32 GHz, 52 GHz), (31 GHz, 50 GHz), and (18.5 GHz, 27 GHz) respectively, and insertion loss of 0.5 dB and 0.6 dB. The TR-LPF is a microstrip-based design, so unlike the lumped elements-based design, it could be designed and fabricated in the GaAs, and other technologies even at millimeter-wave frequencies. Such high performance LPF, using microstrip on a GaAs chip is not reported in the open literature.","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"14 1","pages":"19-29"},"PeriodicalIF":4.6,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140123541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Marco Rasetto;Qingzhou Wan;Himanshu Akolkar;Feng Xiong;Bertram Shi;Ryad Benosman
{"title":"Building Time-Surfaces by Exploiting the Complex Volatility of an ECRAM Memristor","authors":"Marco Rasetto;Qingzhou Wan;Himanshu Akolkar;Feng Xiong;Bertram Shi;Ryad Benosman","doi":"10.1109/JETCAS.2023.3330832","DOIUrl":"https://doi.org/10.1109/JETCAS.2023.3330832","url":null,"abstract":"Memristors have emerged as a promising technology for efficient neuromorphic architectures owing to their ability to act as programmable synapses, combining processing and memory into a single device. Although they are most commonly used for static encoding of synaptic weights, recent work has begun to investigate the use of their dynamical properties, such as Short Term Plasticity (STP), to integrate events over time in event-based architectures. However, we are still far from completely understanding the range of possible behaviors and how they might be exploited in neuromorphic computation. This work focuses on a newly developed Li\u0000<inline-formula> <tex-math>$_{text {x}}$ </tex-math></inline-formula>\u0000WO\u0000<inline-formula> <tex-math>$_{text {3}}$ </tex-math></inline-formula>\u0000-based three-terminal memristor that exhibits tunable STP and a conductance response modeled by a double exponential decay. We derive a stochastic model of the device from experimental data and investigate how device stochasticity, STP, and the double exponential decay affect accuracy in a hierarchy of time-surfaces (HOTS) architecture. We found that the device’s stochasticity does not affect accuracy, that STP can reduce the effect of salt and pepper noise in signals from event-based sensors, and that the double exponential decay improves accuracy by integrating temporal information over multiple time scales. Our approach can be generalized to study other memristive devices to build a better understanding of how control over temporal dynamics can enable neuromorphic engineers to fine-tune devices and architectures to fit their problems at hand.","PeriodicalId":48827,"journal":{"name":"IEEE Journal on Emerging and Selected Topics in Circuits and Systems","volume":"13 4","pages":"877-888"},"PeriodicalIF":4.6,"publicationDate":"2023-11-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10320285","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139060149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}