Pub Date : 2023-01-01DOI: 10.1587/transele.2022oms0005
S. Imai, Kazuki Chidaisyo, Kosuke Yasuda
{"title":"Microneedle of Biodegradable Polyacid Anhydride with a Capillary Open Groove for Reagent Transfer","authors":"S. Imai, Kazuki Chidaisyo, Kosuke Yasuda","doi":"10.1587/transele.2022oms0005","DOIUrl":"https://doi.org/10.1587/transele.2022oms0005","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"11 1","pages":"248-252"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89831816","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.2022ecp5009
M. Ugajin, Yuya Kakei, N. Itoh
SUMMARY Quadrature voltage-controlled oscillators (VCOs) with current-weight-average and voltage-weight-average phase-adjusting architectures are studied. The phase adjusting equalizes the oscillation frequency to the LC-resonant frequency. The merits of the equalization are explained by using Leeson’s phase noise equation and the impulse sensitivity function (ISF). Quadrature VCOs with the phase-adjusting architectures are fabricated using 180-nm TSMC CMOS and show low-phase-noise performances compared to a conventional di ff erential VCO. The ISF analysis and small-signal analysis also show that the drawbacks of the current-weight-average phase-adjusting and voltage-weight-average phase-adjusting architectures are current-source noise e ff ect and large additional capacitance, respectively. A voltage-average-adjusting circuit with a source follower at its input alleviates the capacitance increase.
{"title":"A Study of Phase-Adjusting Architectures for Low-Phase-Noise Quadrature Voltage-Controlled Oscillators","authors":"M. Ugajin, Yuya Kakei, N. Itoh","doi":"10.1587/transele.2022ecp5009","DOIUrl":"https://doi.org/10.1587/transele.2022ecp5009","url":null,"abstract":"SUMMARY Quadrature voltage-controlled oscillators (VCOs) with current-weight-average and voltage-weight-average phase-adjusting architectures are studied. The phase adjusting equalizes the oscillation frequency to the LC-resonant frequency. The merits of the equalization are explained by using Leeson’s phase noise equation and the impulse sensitivity function (ISF). Quadrature VCOs with the phase-adjusting architectures are fabricated using 180-nm TSMC CMOS and show low-phase-noise performances compared to a conventional di ff erential VCO. The ISF analysis and small-signal analysis also show that the drawbacks of the current-weight-average phase-adjusting and voltage-weight-average phase-adjusting architectures are current-source noise e ff ect and large additional capacitance, respectively. A voltage-average-adjusting circuit with a source follower at its input alleviates the capacitance increase.","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"27 1","pages":"59-66"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82830246","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.2022omp0006
Soma Yasui, F. Ohishi, H. Usui
{"title":"Vapor Deposition of Fluoropolymer Thin Films for Antireflection Coating","authors":"Soma Yasui, F. Ohishi, H. Usui","doi":"10.1587/transele.2022omp0006","DOIUrl":"https://doi.org/10.1587/transele.2022omp0006","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"1 1","pages":"195-201"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72675858","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.2022lhp0003
Yasuhiro Mochida, D. Shirai, K. Takasugi
{"title":"Ultra-Low-Latency 8K-Video-Transmission System Utilizing Whitebox Transponder with Disaggregation Configuration","authors":"Yasuhiro Mochida, D. Shirai, K. Takasugi","doi":"10.1587/transele.2022lhp0003","DOIUrl":"https://doi.org/10.1587/transele.2022lhp0003","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"25 1","pages":"321-330"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90074672","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.2022rep0003
Midori Nagasaka, Taiki Arakawa, Yutaro Mochida, Kazunori Kameda, S. Furukawa
{"title":"Band Characteristics of a Polarization Splitter with Circular Cores and Hollow Pits","authors":"Midori Nagasaka, Taiki Arakawa, Yutaro Mochida, Kazunori Kameda, S. Furukawa","doi":"10.1587/transele.2022rep0003","DOIUrl":"https://doi.org/10.1587/transele.2022rep0003","url":null,"abstract":"","PeriodicalId":13259,"journal":{"name":"IEICE Trans. Electron.","volume":"2 1","pages":"127-135"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91528248","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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