Pub Date : 2024-01-02DOI: 10.1007/s10762-023-00958-7
Hong Eun Choi, EunMi Choi
{"title":"High-Precision Complex Permittivity Measurement of High Loss Dielectric Materials Using a Geometrical Gap in Millimeter Wave Frequency","authors":"Hong Eun Choi, EunMi Choi","doi":"10.1007/s10762-023-00958-7","DOIUrl":"https://doi.org/10.1007/s10762-023-00958-7","url":null,"abstract":"","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2024-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139391098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Frequency domain terahertz spectroscopy usually requires frequency scanning, which is quite time-consuming. In this work, we propose a new method to measure the terahertz spectra without scanning, which is based on a terahertz parametric generator and up-conversion detection system. Comparison is made between the terahertz transmission spectra measured by this method and by terahertz time domain spectroscopy (THz-TDS). In the range of 1 to 3 THz, all the absorption peaks observed on the THz-TDS spectra are also found on the spectra obtained by our method. The method has the potential to be single-shot and calibration-free.
{"title":"A Scanning-Free Terahertz Frequency Domain Spectroscopy","authors":"Yu Qin, Mingrui Zou, Zeyu Li, Qiang Yan, Xun Zhou, Weipeng Kong","doi":"10.1007/s10762-023-00961-y","DOIUrl":"https://doi.org/10.1007/s10762-023-00961-y","url":null,"abstract":"<p>Frequency domain terahertz spectroscopy usually requires frequency scanning, which is quite time-consuming. In this work, we propose a new method to measure the terahertz spectra without scanning, which is based on a terahertz parametric generator and up-conversion detection system. Comparison is made between the terahertz transmission spectra measured by this method and by terahertz time domain spectroscopy (THz-TDS). In the range of 1 to 3 THz, all the absorption peaks observed on the THz-TDS spectra are also found on the spectra obtained by our method. The method has the potential to be single-shot and calibration-free.</p>","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139055559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-23DOI: 10.1007/s10762-023-00959-6
Rania H. Elabd, Ahmed Jamal Abdullah Al-Gburi
{"title":"Super-Compact 28/38 GHz 4-Port MIMO Antenna Using Metamaterial-Inspired EBG Structure with SAR Analysis for 5G Cellular Devices","authors":"Rania H. Elabd, Ahmed Jamal Abdullah Al-Gburi","doi":"10.1007/s10762-023-00959-6","DOIUrl":"https://doi.org/10.1007/s10762-023-00959-6","url":null,"abstract":"","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-12-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139161043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-22DOI: 10.1007/s10762-023-00957-8
B. G. P. Shariff, Sameena Pathan, Pallavi R. Mane, Tanweer Ali
{"title":"Characteristic Mode Analysis Based Highly Flexible Antenna For Millimeter Wave Wireless Applications","authors":"B. G. P. Shariff, Sameena Pathan, Pallavi R. Mane, Tanweer Ali","doi":"10.1007/s10762-023-00957-8","DOIUrl":"https://doi.org/10.1007/s10762-023-00957-8","url":null,"abstract":"","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138944367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-22DOI: 10.1007/s10762-023-00956-9
A. L. Goldenberg, M. Glyavin, K. Leshcheva, V. Manuilov, I. V. Zotova
{"title":"Non-adiabatic Non-axisymmetric Electron-Optic Systems for Multi-mirror and Multi-barrel Gyrotrons","authors":"A. L. Goldenberg, M. Glyavin, K. Leshcheva, V. Manuilov, I. V. Zotova","doi":"10.1007/s10762-023-00956-9","DOIUrl":"https://doi.org/10.1007/s10762-023-00956-9","url":null,"abstract":"","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-12-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138946750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-14DOI: 10.1007/s10762-023-00955-w
Ting Zhu, Hao Chen, Kai Liu, Guangyou Fang, Xuequan Chen
{"title":"A Row Displacement Correction Algorithm for High-speed and Accurate Terahertz Raster Scanning Imaging","authors":"Ting Zhu, Hao Chen, Kai Liu, Guangyou Fang, Xuequan Chen","doi":"10.1007/s10762-023-00955-w","DOIUrl":"https://doi.org/10.1007/s10762-023-00955-w","url":null,"abstract":"","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-12-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139001574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-13DOI: 10.1007/s10762-023-00954-x
Xinyue Jiang, Liangjie Bi, Hailong Li, Bin Wang, L. Meng, Yong Yin
{"title":"Efficiency Enhancement of a Millimeter-Wave, Two-Beam Extended Interaction Oscillator Based on All-Period Field Optimization","authors":"Xinyue Jiang, Liangjie Bi, Hailong Li, Bin Wang, L. Meng, Yong Yin","doi":"10.1007/s10762-023-00954-x","DOIUrl":"https://doi.org/10.1007/s10762-023-00954-x","url":null,"abstract":"","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139004407","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-12-08DOI: 10.1007/s10762-023-00948-9
Mohamed Edries, Hesham A. Mohamed, Ahmed A. Ibrahim
A dual-band metamaterial absorber (MMA) for fifth-generation (5G) applications is discussed in this work. The suggested absorber works at frequency bands of 28 GHz and 38 GHz. The suggested MMA unit cell with a size of 5.8 mm × 5.8 mm (0.54 λ0 × 0.54 λ0 at 28 GHz) is designed on 1.5 mm (0.14 λ0) low-cost FR4 substrate and composed of two metallic ring resonators. The suggested MMA is investigated to validate its performance for different polarization for transverse electric (TE) and transverse magnetic (TM). Both normal and oblique angles are studied. The MMA has a simple structure with a compact size. Different parameters such as the currents, electric field distributions, and normalized impedance are studied. The array of 10 × 10 unit cells is utilized to verify the simulated outcomes. The suggested MMA is fabricated and tested, and its outcomes are compared to the simulated outcomes. The MMA is operated at dual bands 28/38 GHz with high absorption rates of 98 and 98.4%, respectively, under the normal incidence for both outcomes. A good matching between the two outcomes is observed, which supports the MMA for 5G applications.
{"title":"A Dual Band 28/38 GHz Metamaterial Absorber for 5G Applications","authors":"Mohamed Edries, Hesham A. Mohamed, Ahmed A. Ibrahim","doi":"10.1007/s10762-023-00948-9","DOIUrl":"https://doi.org/10.1007/s10762-023-00948-9","url":null,"abstract":"<p>A dual-band metamaterial absorber (MMA) for fifth-generation (5G) applications is discussed in this work. The suggested absorber works at frequency bands of 28 GHz and 38 GHz. The suggested MMA unit cell with a size of 5.8 mm × 5.8 mm (0.54 λ<sub>0</sub> × 0.54 λ<sub>0</sub> at 28 GHz) is designed on 1.5 mm (0.14 λ<sub>0</sub>) low-cost FR4 substrate and composed of two metallic ring resonators. The suggested MMA is investigated to validate its performance for different polarization for transverse electric (TE) and transverse magnetic (TM). Both normal and oblique angles are studied. The MMA has a simple structure with a compact size. Different parameters such as the currents, electric field distributions, and normalized impedance are studied. The array of 10 × 10 unit cells is utilized to verify the simulated outcomes. The suggested MMA is fabricated and tested, and its outcomes are compared to the simulated outcomes. The MMA is operated at dual bands 28/38 GHz with high absorption rates of 98 and 98.4%, respectively, under the normal incidence for both outcomes. A good matching between the two outcomes is observed, which supports the MMA for 5G applications.</p>","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138561555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-11-30DOI: 10.1007/s10762-023-00953-y
Lucas Newton, Niru K. Nahar
We present a novel electrically scalable, reconfigurable frequency selective surface (FSS) far-IR filter fabricated on transparent, and flexible polyimide substrate. Our proposed method of reconfigurabilty is achieved by employing phase change materials (PCMs). The PCM primarily considered in this proposal is vanadium dioxide (VO2) due to its relatively low temperature reversible metal to insulator transition and conformity to common fabrication techniques. Here, the proposed reconfigurable filter covers 15–17 μm with a stopband center wavelength that can switch between 15.5 and 16.1 μm with the activation of VO2. Although the design provided is intended for the far-infrared, it can easily be scaled to meet the needs of longer wavelength and lower frequency applications.
{"title":"Reconfigurable Far-Infrared FSS Filters on Polyimide Substrate","authors":"Lucas Newton, Niru K. Nahar","doi":"10.1007/s10762-023-00953-y","DOIUrl":"https://doi.org/10.1007/s10762-023-00953-y","url":null,"abstract":"<p>We present a novel electrically scalable, reconfigurable frequency selective surface (FSS) far-IR filter fabricated on transparent, and flexible polyimide substrate. Our proposed method of reconfigurabilty is achieved by employing phase change materials (PCMs). The PCM primarily considered in this proposal is vanadium dioxide (VO<sub>2</sub>) due to its relatively low temperature reversible metal to insulator transition and conformity to common fabrication techniques. Here, the proposed reconfigurable filter covers 15–17 μm with a stopband center wavelength that can switch between 15.5 and 16.1 μm with the activation of VO<sub>2</sub>. Although the design provided is intended for the far-infrared, it can easily be scaled to meet the needs of longer wavelength and lower frequency applications.</p>","PeriodicalId":16181,"journal":{"name":"Journal of Infrared, Millimeter, and Terahertz Waves","volume":null,"pages":null},"PeriodicalIF":2.9,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138514256","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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