Pub Date : 2023-01-01DOI: 10.1587/transele.2022oms0011
Wei-Jian Liao, Akira Kaino, Tomoaki Mashiko, Sou Kuromasa, M. Sakai, K. Kudo
{"title":"Time-Resolved Observation of Organic Light Emitting Diode under Reverse Bias Voltage by Extended Time Domain Reflectometry","authors":"Wei-Jian Liao, Akira Kaino, Tomoaki Mashiko, Sou Kuromasa, M. Sakai, K. Kudo","doi":"10.1587/transele.2022oms0011","DOIUrl":"https://doi.org/10.1587/transele.2022oms0011","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"48 4 1","pages":"236-239"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85036883","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1587/transele.2022dii0004
M. Honma, Takashi Sase, R. Ito, T. Nose
SUMMARY In this study, we have proposed a millimeter-wave (MMW) single-pixel imaging (SPI) system with a liquid-crystal (LC) mask cell. The LC cell functions as an electrically switchable mask based on the change in absorption properties, which depend on the orientation of the LC. We investigated the influence of noise on the measured and estimated data (reconstructed image). The proposed system exhibited moderate robustness against random noise (that were added) compared to raster scan-based and Hadamard matrix-based SPI systems. Finally, the results of some demonstrative experiments were introduced to ensure the applicability of the constructed MMW-SPI system, and steps for improving the reconstructed image quality were discussed.
{"title":"Millimeter-Wave Single-Pixel Imaging Using Electrically-Switchable Liquid-Crystal Mask","authors":"M. Honma, Takashi Sase, R. Ito, T. Nose","doi":"10.1587/transele.2022dii0004","DOIUrl":"https://doi.org/10.1587/transele.2022dii0004","url":null,"abstract":"SUMMARY In this study, we have proposed a millimeter-wave (MMW) single-pixel imaging (SPI) system with a liquid-crystal (LC) mask cell. The LC cell functions as an electrically switchable mask based on the change in absorption properties, which depend on the orientation of the LC. We investigated the influence of noise on the measured and estimated data (reconstructed image). The proposed system exhibited moderate robustness against random noise (that were added) compared to raster scan-based and Hadamard matrix-based SPI systems. Finally, the results of some demonstrative experiments were introduced to ensure the applicability of the constructed MMW-SPI system, and steps for improving the reconstructed image quality were discussed.","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"48 1","pages":"34-40"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73275733","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1587/transele.2022omp0001
Takumi Kobayashi, M. Minagawa, A. Baba, K. Kato, K. Shinbo
{"title":"On/Off Ratio of a Pentacene Field-Effect Transistor with a Discontinuous MoO3 Layer","authors":"Takumi Kobayashi, M. Minagawa, A. Baba, K. Kato, K. Shinbo","doi":"10.1587/transele.2022omp0001","DOIUrl":"https://doi.org/10.1587/transele.2022omp0001","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"421 1","pages":"214-219"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78171295","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1587/transele.2022sei0004
I. Kakeya
SUMMARY Studies on intrinsic Josephson junctions (IJJs) of cuprate superconductors are reviewed. A system consisting of a few IJJs provides phenomena to test the Josephson phase dynamics and its interaction be-tween adjacent IJJs within a nanometer scale, which is unique to cuprate superconductors. Quasiparticle density of states, which provides direct information on the Cooper-pair formation, is also revealed in the system. In contrast, Josephson plasma emission, which is an electromagnetic wave radiation in the sub-terahertz frequency range from an IJJ stack, arises from the synchronous phase dynamics of hundreds of IJJs coupled globally. This review summarizes a wide range of physical phenomena in IJJ systems having capacitive and inductive couplings with di ff erent nanometer and micrometer length scales, respectively.
{"title":"Terahertz Radiations and Switching Phenomena of Intrinsic Josephson Junctions in High-Temperature Superconductors: Josephson Phase Dynamics in Long- and Short-Ranged Interactions","authors":"I. Kakeya","doi":"10.1587/transele.2022sei0004","DOIUrl":"https://doi.org/10.1587/transele.2022sei0004","url":null,"abstract":"SUMMARY Studies on intrinsic Josephson junctions (IJJs) of cuprate superconductors are reviewed. A system consisting of a few IJJs provides phenomena to test the Josephson phase dynamics and its interaction be-tween adjacent IJJs within a nanometer scale, which is unique to cuprate superconductors. Quasiparticle density of states, which provides direct information on the Cooper-pair formation, is also revealed in the system. In contrast, Josephson plasma emission, which is an electromagnetic wave radiation in the sub-terahertz frequency range from an IJJ stack, arises from the synchronous phase dynamics of hundreds of IJJs coupled globally. This review summarizes a wide range of physical phenomena in IJJ systems having capacitive and inductive couplings with di ff erent nanometer and micrometer length scales, respectively.","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"24 1","pages":"272-280"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82397506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1587/transele.2022cds0001
K. Shiba, Atsutake Kosuge, M. Hamada, T. Kuroda
SUMMARY This paper describes an in-depth analysis of crosstalk in a high-bandwidth 3D-stacked memory using a multi-hop inductive coupling interface and proposes two countermeasures. This work analyzes the crosstalk among seven stacked chips using a 3D electromagnetic (EM) simulator. The detailed analysis reveals two main crosstalk sources: concentric coils and adjacent coils. To suppress these crosstalks, this paper proposes two corresponding countermeasures: shorted coils and 8-shaped coils. The combination of these coils improves area efficiency by a factor of 4 in simulation. The proposed methods enable an area-efficient inductive coupling interface for high-bandwidth stacked memory.
{"title":"Crosstalk Analysis and Countermeasures of High-Bandwidth 3D-Stacked Memory Using Multi-Hop Inductive Coupling Interface","authors":"K. Shiba, Atsutake Kosuge, M. Hamada, T. Kuroda","doi":"10.1587/transele.2022cds0001","DOIUrl":"https://doi.org/10.1587/transele.2022cds0001","url":null,"abstract":"SUMMARY This paper describes an in-depth analysis of crosstalk in a high-bandwidth 3D-stacked memory using a multi-hop inductive coupling interface and proposes two countermeasures. This work analyzes the crosstalk among seven stacked chips using a 3D electromagnetic (EM) simulator. The detailed analysis reveals two main crosstalk sources: concentric coils and adjacent coils. To suppress these crosstalks, this paper proposes two corresponding countermeasures: shorted coils and 8-shaped coils. The combination of these coils improves area efficiency by a factor of 4 in simulation. The proposed methods enable an area-efficient inductive coupling interface for high-bandwidth stacked memory.","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"16 1","pages":"391-394"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90458347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-01-01DOI: 10.1587/transele.2022ecp5043
Yuma Kase, S. Hori, Naoki Oshima, K. Kunihiro
{"title":"Radio-over-Fiber System with 1-Bit Outphasing Modulation for 5G/6G Indoor Wireless Communication","authors":"Yuma Kase, S. Hori, Naoki Oshima, K. Kunihiro","doi":"10.1587/transele.2022ecp5043","DOIUrl":"https://doi.org/10.1587/transele.2022ecp5043","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"33 1","pages":"405-416"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87426731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Fully Digital Calibration Technique for Channel Mismatch of TIADC at Any Frequency","authors":"Hongmei Chen, Jian Wang, Lanyu Wang, Long Li, Honghui Deng, Xu Meng, Yongsheng Yin","doi":"10.1587/transele.2022ecp5023","DOIUrl":"https://doi.org/10.1587/transele.2022ecp5023","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"232 1","pages":"84-92"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76679751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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