المؤلفون: Oussama Gassab, Yanning Chen, Yali Shao, Jingxiao Li, Ding-E Wen, Fang He, Zhizhen Su, Peina Zhong, Jian Wang, Dongyan Zhao, Wen-Yan Yin

المصدر: IEEE Access. 10:100682-100699

مصطلحات موضوعية: General Computer Science, General Engineering, General Materials Science, Electrical and Electronic Engineering

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::905d04e1404d7e1111f7e97e6112081fTest
https://doi.org/10.1109/access.2022.3207746Test

المؤلفون: Huy Nam Chu, Yan-Yin Chen, Yi-Lin Tsai, Tzyh-Ghuang Ma

المصدر: IEEE Access, Vol 7, Pp 170534-170544 (2019)

مصطلحات موضوعية: polarization, General Computer Science, Computer science, receiver, Detector, antenna measuring system, General Engineering, 020206 networking & telecommunications, 02 engineering and technology, Polarization (waves), Active antenna, Electric field, 0202 electrical engineering, electronic engineering, information engineering, Electronic engineering, Integrated antenna, General Materials Science, lcsh:Electrical engineering. Electronics. Nuclear engineering, lcsh:TK1-9971, oscillating antenna

الوصف: A simple, low-cost yet efficient polarization sensing system, capable of determining the polarization state of a self-oscillating circularly-polarized active integrated antenna (CPAIA), is proposed and demonstrated. The newly developed sensing system is capable of retrieving the phase difference information between the orthogonal field components of a CPAIA without the need of a common synchronous reference signal as that in a conventional pattern measuring system. The two orthogonal electrical fields are captured and mixed to retrieve the relative phase difference information as dc voltages. As a proof of concept, the polarization sensing system has been successfully developed on a printed circuit board, while a typical passive circularly-polarized antenna and a self-oscillating CPAIA were fabricated as a pair of antennas under test (AUTs). On one hand, the passive AUT characterized by the sensing system was supported by data from a commercial measuring setup to validating the accuracy of the newly developed system. On the other hand, the proposed sensing system is believed to be the first demonstration dedicated to retrieving the polarization information of a self-oscillating CPAIA, and hence pave a new way to fully characterize this special sort of active antennas.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e40f16410b3a5565c6251864af2287dcTest
https://doi.org/10.1109/access.2019.2955539Test

المؤلفون: Da-Wei Wang, Wenchao Chen, Wen-Sheng Zhao, Guo-Dong Zhu, Kai Kang, Pingqi Gao, Jose E. Schutt-Aine, Wen-Yan Yin

المصدر: IEEE Access, Vol 7, Pp 3897-3908 (2019)

مصطلحات موضوعية: thermal-house, parallel simulator, Electrothermal simulation, thermal management, lcsh:Electrical engineering. Electronics. Nuclear engineering, low power consumption, resistive-switching random access memory (RRAM), lcsh:TK1-9971

الوصف: Thermal crosstalk in a highly integrated RRAM array due to the self-heating effect is one of the most critical issues affecting device reliability. In this paper, two types of “thermal-house” structures are proposed to optimize the thermal management of the RRAM array. An in-house developed parallel simulator is employed to study the performance of the proposed thermal house structures in terms of resistance ratio and crosstalk temperature. It is demonstrated that the proposed thermal house structures can help to reduce thermal crosstalk in high-density RRAM arrays. Some suggestions are also provided for further improving the thermal management capability of the thermal houses as well.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doajarticles::35d488df1a3c8e7f631195a3a80f63d6Test
https://ieeexplore.ieee.org/document/8580571Test/

المؤلفون: Da-Wei Wang, Zhenguo Zhao, Jose E. Schutt-Aine, Wen-Yan Yin, Wen-Sheng Zhao, Guodong Zhu, Wenchao Chen

المصدر: IEEE Access, Vol 7, Pp 31273-31285 (2019)

مصطلحات موضوعية: Speedup, Domain decomposition method (DDM), General Computer Science, Computer science, 01 natural sciences, Computational science, electrothermal modeling and simulation, 0103 physical sciences, General Materials Science, 0101 mathematics, 010302 applied physics, drift diffusion, reliability, finite element method (FEM), General Engineering, Domain decomposition methods, finite volume method (FVM), Supercomputer, Grid, Finite element method, Vertex (geometry), Resistive random-access memory, 010101 applied mathematics, Continuity equation, Scalability, lcsh:Electrical engineering. Electronics. Nuclear engineering, lcsh:TK1-9971

الوصف: A hybrid finite volume–finite element method which can avoid overestimation of volume shared by each vertex in the meshing grid is proposed to solve the diffusive transport governed continuity equation. The simulation results demonstrate that the improved algorithm can eliminate unphysical distortions as compared to the conventional Scharfetter Gummel method. Based on the proposed algorithm, a parallel-computation simulator is developed for large-scale electrothermal simulation of resistive random access memory (RRAM) arrays, in which the domain decomposition method and J parallel adaptive unstructured mesh applications infrastructure are adopted. The validity, speedup, and scalability of the parallel simulator are investigated on the TianHe-2 supercomputer. Based on the simulated results, the electrothermal characteristics and reliability analysis of large-scale RRAM arrays are investigated in detail.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab0ae137a373ccfa547746a71fdafb72Test
https://ieeexplore.ieee.org/document/8656503Test/

المؤلفون: Wen Sheng Zhao, Wenchao Chen, Kai Kang, Wen-Yan Yin, Guo Dong Zhu, Jose E. Schutt-Aine, Da-Wei Wang, Pingqi Gao

المصدر: IEEE Access. 7:3897-3908

مصطلحات موضوعية: Random access memory, Materials science, General Computer Science, General Engineering, 02 engineering and technology, Thermal management of electronic devices and systems, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Resistive random-access memory, Parallel simulation, Fully coupled, Crosstalk (biology), Reliability (semiconductor), Thermal, Electronic engineering, General Materials Science, Electrical and Electronic Engineering, 0210 nano-technology

الوصف: Thermal crosstalk in a highly integrated RRAM array due to the self-heating effect is one of the most critical issues affecting device reliability. In this paper, two types of “thermal-house” structures are proposed to optimize the thermal management of the RRAM array. An in-house developed parallel simulator is employed to study the performance of the proposed thermal house structures in terms of resistance ratio and crosstalk temperature. It is demonstrated that the proposed thermal house structures can help to reduce thermal crosstalk in high-density RRAM arrays. Some suggestions are also provided for further improving the thermal management capability of the thermal houses as well.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::3fb632e348ab557df8f78255ed5d9f17Test
https://doi.org/10.1109/access.2018.2888572Test

المؤلفون: Wen-Yan Yin, Gaofeng Wang, Wen-Sheng Zhao, Kai Fu, Madhavan Swaminathan, Da-Wei Wang

المصدر: IEEE Access, Vol 6, Pp 75278-75292 (2018)

مصطلحات موضوعية: General Computer Science, Computer science, Equalizer, through-silicon vias (TSVs), 02 engineering and technology, Integrated circuit, Topology, 01 natural sciences, Transfer function, Capacitance, law.invention, three-dimensional integrated circuits (3-D ICs), law, 0103 physical sciences, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Passive equalizer, on-interposer interconnects, 010302 applied physics, General Engineering, 020206 networking & telecommunications, Single antenna interference cancellation, Equivalent circuit, peak distortion analysis, lcsh:Electrical engineering. Electronics. Nuclear engineering, lcsh:TK1-9971, Communication channel

الوصف: In this paper, a compact passive equalizer for differential transmission channel is designed in TSV-based three-dimensional integrated circuits (3-D ICs). The compact size of the equalizer is achieved by a square shunt metal line. Three simplified odd-mode half circuit models are proposed for ground-signal-signal-ground (G-S-S-G) type TSVs, differential on-interposer interconnects, and differential channels, respectively. Those simplified models merely consist of frequency-independent elements and can accurately predict the differential insertion losses up to 20 GHz. Moreover, the electrical parameters of the proposed serial resistance-inductance (RL) type equalizers are derived from the system transfer functions and optimized by virtue of the time-domain inter-symbol interference cancellation technique. Further, the geometrical parameters of the RL equalizers are calculated by using a genetic algorithm based multi-objective optimization method. Finally, the performance of the designed RL equalizer is validated by both frequency- and time-domain simulations for 20 Gb/s high-speed differential signaling.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94e4f18826426f907768f09f0f53b5ddTest
https://ieeexplore.ieee.org/document/8552391Test/

المؤلفون: Zi-Han Cheng, Gaofeng Wang, Da-Wei Wang, Linxi Dong, Wen-Yan Yin, Wen-Sheng Zhao, Jing Wang

المصدر: IEEE Access, Vol 6, Pp 53499-53508 (2018)

مصطلحات موضوعية: Materials science, General Computer Science, Diffusion barrier, Phonon, 02 engineering and technology, Conductivity, 01 natural sciences, law.invention, law, 0103 physical sciences, General Materials Science, Diffusion (business), Cu-graphene interconnect, 010302 applied physics, Interconnection, Graphene, business.industry, Scattering, General Engineering, diffusion barrier layer, 021001 nanoscience & nanotechnology, time delay, Optoelectronics, transfer function, lcsh:Electrical engineering. Electronics. Nuclear engineering, 0210 nano-technology, business, Layer (electronics), equivalent single-conductor (ESC) model, lcsh:TK1-9971

الوصف: Due to its ultrathin feature, graphene has been recently proposed as diffusion barrier layer for Cu wires. This paper is geared toward developing an equivalent single-conductor (ESC) transmission-line (TL) model for analysis of Cu-graphene interconnects, i.e., Cu wires encapsulated with graphene barriers. Based on the ESC TL model, electrical performances of Cu-graphene interconnects are examined and evaluated. It is shown that the time delay and temperature rise can be reduced by replacing the conventional diffusion barriers in the Cu/low-k interconnect with the graphene barriers.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9efb05a93faa0d9f245477b5cde02d2Test
https://ieeexplore.ieee.org/document/8458119Test/

المؤلفون: Wen-Yan Yin, Hong-Li Peng, Jian-Gang Lu, Yao-Ping Zhang, Changli Sun, Guanghui Xu

المصدر: IEEE Access, Vol 6, Pp 3051-3058 (2018)

مصطلحات موضوعية: Permittivity, Materials science, General Computer Science, Circular ring patch antennas, Physics::Optics, 02 engineering and technology, Test probe, nematic liquid crystal, Optics, Liquid crystal, 0202 electrical engineering, electronic engineering, information engineering, General Materials Science, Electrical impedance, Patch antenna, business.industry, 020208 electrical & electronic engineering, General Engineering, 020206 networking & telecommunications, cavity model, differential probe fed, Reflection (physics), Dissipation factor, lcsh:Electrical engineering. Electronics. Nuclear engineering, Antenna (radio), business, lcsh:TK1-9971

الوصف: A differential probe-fed liquid crystal (LC)-based frequency tunable circular-ring patch antenna is presented. Besides, cavity model is extended to analyze the LC-based antenna for the differential operation. According to the cavity model, the permittivity and loss tangent of the LC are extracted from the measured differential reflection coefficients. Acceptable agreements among the measurement, simulation, and calculation for differential impedances, reflection coefficients, and radiation patterns are obtained and also validate the extraction method and model. More importantly, the extended cavity model can provide a deep physical insight into the LC-based antenna.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a1888b0eee6db25aff796f4b7d2de16bTest
https://doi.org/10.1109/access.2017.2786870Test

المؤلفون: Kai Kang, Yiming Yu, Yiming Fan, Huihua Liu, Chenxi Zhao, Wen-Yan Yin, Yong-Ling Ban, Yunqiu Wu

المصدر: IEEE Access, Vol 5, Pp 9389-9397 (2017)

مصطلحات موضوعية: Power gain, General Computer Science, Noise-figure meter, Y-factor, 02 engineering and technology, Noise figure, Topology, noise cancellation, 0202 electrical engineering, electronic engineering, information engineering, Effective input noise temperature, inductorless, General Materials Science, noise figure, Physics, Noise temperature, business.industry, Noise spectral density, CMOS, 020208 electrical & electronic engineering, General Engineering, Electrical engineering, Low-noise amplifier, 020206 networking & telecommunications, lcsh:Electrical engineering. Electronics. Nuclear engineering, business, phase mismatch, lcsh:TK1-9971

الوصف: This paper deals with the fabrication of an inductorless wideband low-noise amplifier (LNA). The LNA includes two branches in parallel: a common-source (CS) path and a common-gate (CG) path. The CS path is responsible for providing enough power gain, while the CG path is used to achieve the input impedance matching. To eliminate the noise contribution of the CG path, the noise cancellation technique is applied. Therefore, the overall noise figure (NF) is improved. The phase mismatch between the two paths is also quantitatively analyzed to investigate its effect on gain and NF. The analytical results agree well with the simulation results. The LNA has been fabricated by a commercial 0.18- $\mu \text{m}$ CMOS process. The measurement results show that the LNA has achieved a maximum gain of 14.5 dB with 1.7-GHz 3-dB gain bandwidth and a minimum NF of 3 dB. The tested input 1-dB gain compression point (IP $_{{\text {1 dB}}}$ ) is −10.4 dBm at 1 GHz and the input third-order intercept point is 0.25 dBm. With 1.8-V supply, the LNA draws only 6-mA dc current.

الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94a9b19364f0a00c800d06786cb7709cTest
https://doi.org/10.1109/access.2017.2692765Test

المؤلفون: Guanghui Xu, Hong-Li Peng, Changli Sun, Jian-Gang Lu, Yaoping Zhang, Wen-Yan Yin

المصدر: IEEE Access, Vol 6, Pp 3051-3058 (2018)

مصطلحات موضوعية: Circular ring patch antennas, cavity model, nematic liquid crystal, differential probe fed, Electrical engineering. Electronics. Nuclear engineering, TK1-9971

الوصف: A differential probe-fed liquid crystal (LC)-based frequency tunable circular-ring patch antenna is presented. Besides, cavity model is extended to analyze the LC-based antenna for the differential operation. According to the cavity model, the permittivity and loss tangent of the LC are extracted from the measured differential reflection coefficients. Acceptable agreements among the measurement, simulation, and calculation for differential impedances, reflection coefficients, and radiation patterns are obtained and also validate the extraction method and model. More importantly, the extended cavity model can provide a deep physical insight into the LC-based antenna.

وصف الملف: electronic resource

العلاقة: https://ieeexplore.ieee.org/document/8240909Test/; https://doaj.org/toc/2169-3536Test

الوصول الحر: https://doaj.org/article/513463cc5cc648769bd515342200dfb8Test