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Techniques for temperature-dependent dielectric measurements: a review 温度相关介电测量技术综述
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825550
Federico Cilia, S. Di Meo, L. Farrugia, J. Bonello, I. Farhat, E. Dimech, M. Pasian, C. Sammut
{"title":"Techniques for temperature-dependent dielectric measurements: a review","authors":"Federico Cilia, S. Di Meo, L. Farrugia, J. Bonello, I. Farhat, E. Dimech, M. Pasian, C. Sammut","doi":"10.1109/mms55062.2022.9825550","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825550","url":null,"abstract":"In this paper, a preliminary review of the dielectric measurement methods as a function of both frequency and temperature is presented. In particular, the two most popular approaches for heating the samples up to ablative temperatures (i.e., water bath and antenna applicator) and two dielectric measurement setups (i.e. open-ended coaxial probe and resonant cavity) are analysed and compared, highlighting the pros and cons of each approach.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129564657","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}
引用次数: 0
Advances in MRI based Electrical Properties Tomography: a Comparison between Physics-supported Learning Approaches 基于MRI的电性质断层扫描的进展:物理支持学习方法的比较
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825562
S. Zumbo, S. Mandija, E. Meliadò, P. Stijnman, T. Meerbothe, C. V. D. van den Berg, T. Isernia, M. Bevacqua
{"title":"Advances in MRI based Electrical Properties Tomography: a Comparison between Physics-supported Learning Approaches","authors":"S. Zumbo, S. Mandija, E. Meliadò, P. Stijnman, T. Meerbothe, C. V. D. van den Berg, T. Isernia, M. Bevacqua","doi":"10.1109/mms55062.2022.9825562","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825562","url":null,"abstract":"Magnetic resonance imaging (MRI) is widely used in several medical applications, which include the non-invasive and in-vivo investigation of the electrical properties of biological tissues. Such kind of inverse problem can be addressed by means of iterative methods, which are time and memory consuming and solution may converge to local minima. To accelerate the reconstructions and bypass the problem of local minima, we propose and compare two different learning methods to face the inverse problem underlying the MRI based electrical properties tomography, one based on supervised descent method and the other one on a cascade of multi-layers convolutional neural networks. Both methods are trained and tested using 2D simulated data of a human head model and show a good reconstruction capability. Better generalization ability can be achieved by using the CNN-based iterative approach.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128297460","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}
引用次数: 1
Design of compact size dual-band smartwatch antenna for biomedical applications 设计用于生物医学应用的紧凑型双波段智能手表天线
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825560
Rania Rabhi, A. Gharsallah
{"title":"Design of compact size dual-band smartwatch antenna for biomedical applications","authors":"Rania Rabhi, A. Gharsallah","doi":"10.1109/mms55062.2022.9825560","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825560","url":null,"abstract":"This paper presents a compact size dual-band antenna that can be perfectly integrated into the smartwatch frame. The proposed antenna operates at 2.45 GHz and 5.8 GHz ISM bands and designed on a semi-flexible material of RT/duroid 5880 (εr = 2.2, tanδ = 0.0009) with an overall dimension of 28.5 mm × 19 mm × 1.575 mm. The final design provides a peak gain of 1.8 dB and 3.8 dB and a −10 dB impedance bandwidths of 350 MHz and 570 MHz at 2.4 GHz and 5.8 GHz respectively. The antenna is studied in free space and then on-body scenarios. The specific absorption rate (SAR) analysis in the wrist-worn have also been presented, which are under the normal SAR criteria. These features make the proposed antenna a strong candidate for healthcare applications of smartwatches.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"20 16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128535581","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}
引用次数: 1
Dielectric Characterization Improvement of Biopsy Samples Via a Coated Open-Ended Coaxial Probe 通过涂层开放式同轴探针改善活检样品的介电特性
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825517
Eliana Canicattì, N. Fontana, S. Barmada, A. Monorchio
{"title":"Dielectric Characterization Improvement of Biopsy Samples Via a Coated Open-Ended Coaxial Probe","authors":"Eliana Canicattì, N. Fontana, S. Barmada, A. Monorchio","doi":"10.1109/mms55062.2022.9825517","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825517","url":null,"abstract":"In the present work, we investigated the dielectric characterization of cylindrical shaped tissues via an open-ended coaxial probe. So long as biological tissues are not stiff, in this contribution we look for the minimum cylinder diameter and the related insertion depth in the tissue detectable by our probe. From numerical simulations, we derived the reflection coefficient probe aperture plane, and then we used it as input data in our Virtual Transmission Line Model (VTLM) based algorithm for dielectric properties reconstruction. Furthermore, we numerically analyzed the presence of a dielectric coating which hosts the tissue under test and wraps the coaxial probe itself. The aim is exploiting the sample shape derived from a core needle biopsy procedure which allows avoiding sample manipulation. The same dielectric coating allows reducing fringing field effect at the probe-to-tissue region thus enhancing probe dielectric reconstruction properties. The proposed system can be used in medical field as a decisional support in pre-pathological malignant tissue recognition purposes.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124144468","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}
引用次数: 4
Design and Manufacturing of Microwave Components by 3D Printing 微波元件的3D打印设计与制造
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825617
N. Delmonte, L. Silvestri, C. Tomassoni, I. Piekarz, J. Sorocki, L. Perregrini, M. Bozzi
{"title":"Design and Manufacturing of Microwave Components by 3D Printing","authors":"N. Delmonte, L. Silvestri, C. Tomassoni, I. Piekarz, J. Sorocki, L. Perregrini, M. Bozzi","doi":"10.1109/mms55062.2022.9825617","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825617","url":null,"abstract":"In the field of microwave engineering, additive manufacturing technologies enable the rapid prototyping of cost-effective and light-weight components and the simple realization of otherwise impractical topologies. In this work, a technique for the creation of passive microwave components based on 3D printing of plastic material is discussed. A number of devices are presented, including a microstrip-to-waveguide transition, a dielectric sensor, and two microwave filters. Each of these components highlights the aspects that additive manufacturing can bring to their respective applications.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126289646","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}
引用次数: 1
Ultracompact Inverted Input Delay Doherty Power Amplifier with a Novel Power Divider for 5G mm-Wave 一种新型5G毫米波分压器的超紧凑反向输入延迟多尔蒂功率放大器
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825609
Aniello Franzese, M. Wei, R. Negra, A. Malignaggi
{"title":"Ultracompact Inverted Input Delay Doherty Power Amplifier with a Novel Power Divider for 5G mm-Wave","authors":"Aniello Franzese, M. Wei, R. Negra, A. Malignaggi","doi":"10.1109/mms55062.2022.9825609","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825609","url":null,"abstract":"This paper reports on the design of a Doherty power amplifier (DPA) for 5G mm-wave applications. Conversely to standard DPAs, this design presents a delay at the input of the carrier amplifier, which enhances the isolation of the peaking amplifier while the DPA is in its low power regime. Moreover, the circuit leverages a novel power divider (PD) to reduce both size and number of passive components. Moreover, the PD transforms the input impedance of the carrier and the peaking amplifiers to 50 Ω avoiding lossy matching networks. Performance consists of a peak gain without pre-driver amplifiers of more than 7 dB at 26.5 GHz, a back-off efficiency plateau of 5 dB, and a saturation power of more than 14 dBm. The circuit has been fabricated in the IHP 130-nm SiGe technology and occupies an effective area of 660×360 µm2, which makes it suitable to be integrated into a beamformer chip.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122242855","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}
引用次数: 0
Fabricating 3D Metamaterials via Field's Metal Injection 通过Field的金属注射制造3D超材料
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825596
I. Spanos, C. Stevens, A. Vallechi, J. McGhee, W. Whittow
{"title":"Fabricating 3D Metamaterials via Field's Metal Injection","authors":"I. Spanos, C. Stevens, A. Vallechi, J. McGhee, W. Whittow","doi":"10.1109/mms55062.2022.9825596","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825596","url":null,"abstract":"This report presents a recently developed fabrication method combining fused deposition modelling with Field's metal for the manufacturing of complex metal structures. First, a dielectric mold is printed using standard 3D printing methods. The mold is designed with hollow cavities, which form the desired shape of the structure's metal parts. Next, molten Field's metal is injected inside, filling the cavities and adopting their architecture. Field's metal has a low melting point of 65 degrees Celsius, which can realistically be lower than the temperature where heat deformation in numerous thermoplastic materials occurs. This method can produce metamaterial resonators with high quality factors. Numerical methods are used to model the response of the metamaterial and further investigate the resonance.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131061106","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}
引用次数: 1
3D-Printing of Antenna-Feed Components for Space Applications 用于空间应用的天线馈电组件的3d打印
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825568
G. Addamo, O. Peverini, F. Calignano, M. Lumia, G. Virone, F. Paonessa, D. Manfredi
{"title":"3D-Printing of Antenna-Feed Components for Space Applications","authors":"G. Addamo, O. Peverini, F. Calignano, M. Lumia, G. Virone, F. Paonessa, D. Manfredi","doi":"10.1109/mms55062.2022.9825568","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825568","url":null,"abstract":"This paper reports an overview on the on-going research activity aimed at the exploitation of 3D-printing technologies to the development of dual-band and dual-polarization components for SatCom antenna feed chains. In particular, architectures optimized for 3D-printing are discussed, and the results of a preliminary study on the application of perforations along the internal channels is reported.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130918710","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}
引用次数: 1
Superdirective Array Antennas with Pattern Radiation Reconfigurable for Wi-Fi box 超指令阵列天线与模式辐射可重构Wi-Fi盒
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825579
M. M. Khouma, I. Dioum, A. Diallo, S. Ouya
{"title":"Superdirective Array Antennas with Pattern Radiation Reconfigurable for Wi-Fi box","authors":"M. M. Khouma, I. Dioum, A. Diallo, S. Ouya","doi":"10.1109/mms55062.2022.9825579","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825579","url":null,"abstract":"This paper presents a design of a superdirective array of 3 monopoles antennas with radiation pattern reconfigurable for Wi-Fi box in ISM band. It is principally based on Uzkov's theory, who define the possibility to obtain a high directivity in order of N2 in a desired direction by linearly associating a large number of N radiators closely spaced. Since we calculated specific currents excitation in magnitude and phase to obtain a superdirectivity reconfigurable for desired direction, we design this array antennas by exciting one monopole by a unit current and loaded the others two by impedances Znload determined from uzkov's theory. This impedances are each other directly connected to its pin diode which allow to swicth in a desired direction without any mutual coupling between monopoles and cover all 360 deg of azimutal plane. This array antennas, efficient at 96%, presents approximately similar results in all 360 deg of azimtal plane with a reconfigurable directivity in order of 5.2dB and a Back lobe of −14dB with an Half Power Beam of around 120 deg in every direction.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"53 10","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133003539","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}
引用次数: 0
Integration of Modulated Scattering Technique (MST) tags with IoT devices 调制散射技术(MST)标签与物联网设备的集成
2022 Microwave Mediterranean Symposium (MMS) Pub Date : 2022-05-09 DOI: 10.1109/mms55062.2022.9825565
M. Manekiya, M. Donelli, V. Mulloni, Giada Marchi
{"title":"Integration of Modulated Scattering Technique (MST) tags with IoT devices","authors":"M. Manekiya, M. Donelli, V. Mulloni, Giada Marchi","doi":"10.1109/mms55062.2022.9825565","DOIUrl":"https://doi.org/10.1109/mms55062.2022.9825565","url":null,"abstract":"Internet of things (IoT) has transformed numerous fields while providing better connectivity. In such scenario, the integration of various IoT devices have to be satisfied. The downside of commuting between cross platform IoT devices are difficult to achieve, because low power high range communication front end is mandatory. This paper proposes to utilize the Modulated Scattering Technique (MST) to integrate with IoT devices and to achieve the radio frequency communication capabilities. An MST system works similarly to an RFID, is highly miniaturized and exhibits good performances at microwave frequency bands without the necessity of radio frequency front-end. MST communication systems provide an high operative range with respect to standard RFID systems, and a very low consumption with respect to standard wireless radio frequency front ends, such as WiFi modules. This work proposes the integration of MST communication paradigms with an IoT system, in particular a prototype of air quality IoT sensor is presented and assessed.","PeriodicalId":124088,"journal":{"name":"2022 Microwave Mediterranean Symposium (MMS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133431877","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}
引用次数: 0
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