Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811085
Yi Huang, Jiafeng Zhou, Long Li
In this invited talk/paper, we review and explore the use of metamaterials and metasurfaces for wireless power transfer (WPT) and wireless energy harvesting (WEH) which are two closely related hot topics. The focus is on how to improve the energy conversion efficiency of both systems. It is shown that metamaterials and metasurfaces can indeed achieve a higher RF to DC energy conversion efficiency and operational distance by changing the electromagnetic fields between the transmitter and receiver, and/or making their reception less sensitive to incident wave angle and polarization. They can also be used as either parasitic elements or loading components to improve WEH performance.
{"title":"Wireless Power Transfer and Energy Harvesting Using Metamaterials and Metasurfaces","authors":"Yi Huang, Jiafeng Zhou, Long Li","doi":"10.1109/iWAT54881.2022.9811085","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811085","url":null,"abstract":"In this invited talk/paper, we review and explore the use of metamaterials and metasurfaces for wireless power transfer (WPT) and wireless energy harvesting (WEH) which are two closely related hot topics. The focus is on how to improve the energy conversion efficiency of both systems. It is shown that metamaterials and metasurfaces can indeed achieve a higher RF to DC energy conversion efficiency and operational distance by changing the electromagnetic fields between the transmitter and receiver, and/or making their reception less sensitive to incident wave angle and polarization. They can also be used as either parasitic elements or loading components to improve WEH performance.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125815496","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9810907
Mohsin Iqbal, Syed Muhammad Rizvi Jarchavi, Mohammad Alibakhshikenari, M. Dalarsson
In this paper, a compact, low profile, geometrically simple, ultra-wideband and high gain antenna is designed for V-band and E-band applications. The proposed work is designed over the substrate material Rogers RT/duroid 5880 with dimensions of 15 mm × 15 mm × 0.79 mm. The proposed work operates over a wide band of 22 GHz for the Vband and 21 GHz for the E band. Moreover, the proposed work is compared to already published work to show the potential of the proposed work for the targeted frequency band. The results of the proposed work indicate that the antenna is a good candidate for future wireless communication systems in V and E band.
本文设计了一种结构紧凑、外形低调、几何结构简单、超宽带高增益的v波段和e波段天线。所提出的工作是在基板材料Rogers RT/duroid 5880上设计的，尺寸为15 mm × 15 mm × 0.79 mm。拟议的工作在22 GHz的Vband和21 GHz的E band宽带上运行。此外，将提议的工作与已发表的工作进行比较，以显示提议的工作在目标频段的潜力。研究结果表明，该天线是未来V、E波段无线通信系统的理想选择。
{"title":"Stair Geometry Inspired Ultra-Wideband Antenna with Simple Feeding Mechanism and Loaded by Circular-Slot for 5G Applications Over the V- and E-Bands","authors":"Mohsin Iqbal, Syed Muhammad Rizvi Jarchavi, Mohammad Alibakhshikenari, M. Dalarsson","doi":"10.1109/iWAT54881.2022.9810907","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9810907","url":null,"abstract":"In this paper, a compact, low profile, geometrically simple, ultra-wideband and high gain antenna is designed for V-band and E-band applications. The proposed work is designed over the substrate material Rogers RT/duroid 5880 with dimensions of 15 mm × 15 mm × 0.79 mm. The proposed work operates over a wide band of 22 GHz for the Vband and 21 GHz for the E band. Moreover, the proposed work is compared to already published work to show the potential of the proposed work for the targeted frequency band. The results of the proposed work indicate that the antenna is a good candidate for future wireless communication systems in V and E band.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124693166","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811016
Cristian Codau, Rares-Calin Buta, E. Puschita, T. Palade, P. Dolea, Raluca Simedroni, A. Pastrav
This paper presents the development of an SDR-based FMCW radar receiver for SST applications. The proposed solution is based on two NI USRPs and LabVIEW NXG software. Several measurements campaigns were performed to determine the target range on a laboratory testbed. The dynamic range of the system was also evaluated by varying configuration parameters such as chirp bandwidth and period, sampling rate, and FFT size.
{"title":"Implementation of an SDR-based FMCW Radar Receiver using LabVIEW NXG","authors":"Cristian Codau, Rares-Calin Buta, E. Puschita, T. Palade, P. Dolea, Raluca Simedroni, A. Pastrav","doi":"10.1109/iWAT54881.2022.9811016","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811016","url":null,"abstract":"This paper presents the development of an SDR-based FMCW radar receiver for SST applications. The proposed solution is based on two NI USRPs and LabVIEW NXG software. Several measurements campaigns were performed to determine the target range on a laboratory testbed. The dynamic range of the system was also evaluated by varying configuration parameters such as chirp bandwidth and period, sampling rate, and FFT size.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114279292","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811068
Abdellah Touhami, S. Collardey, A. Sharaiha
This paper presents the design of an efficient end- fire parasitic superdirective array based on an electrically small antenna (ESA) (ka ≈1). The unit element is internally loaded with two inductances. With those loads the antenna exhibits an impedance bandwidth of 11 % with a radiation efficiency greater than 96 % in the whole frequency band of interest. The ESA based superdirective array achieves a maximal end-fire directivity of 9.3 dB at 780 MHz with a radiation efficiency greater than 80%. To validate the simulation results, a prototype was fabricated and measured. The measurement are in a good agreement with simulation.
{"title":"Design of an End-Fire Efficient Superdirective Electrically Small Antenna Array","authors":"Abdellah Touhami, S. Collardey, A. Sharaiha","doi":"10.1109/iWAT54881.2022.9811068","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811068","url":null,"abstract":"This paper presents the design of an efficient end- fire parasitic superdirective array based on an electrically small antenna (ESA) (ka ≈1). The unit element is internally loaded with two inductances. With those loads the antenna exhibits an impedance bandwidth of 11 % with a radiation efficiency greater than 96 % in the whole frequency band of interest. The ESA based superdirective array achieves a maximal end-fire directivity of 9.3 dB at 780 MHz with a radiation efficiency greater than 80%. To validate the simulation results, a prototype was fabricated and measured. The measurement are in a good agreement with simulation.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117197848","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9810911
Abdoalbaset Abohmra, H. Abbas, Masood Ur Rehman, M. Imran, Q. Abbasi
With the help of CsPbBr3 perovskite quantum material, we propose a wearable antenna that operates in the terahertz frequency range. CsPbBr3 was specifically employed to improve the performance of the antenna, and the findings reveal that the reflection coefficient and radiation efficiency of the antenna are improved. The performance of the antenna is assessed both on the skin and in free space. Based on the simulation findings, the suggested antenna has a bandwidth of 29 GHz and provides radiation efficiency of 90% in free-space and 45% on the human body. Moreover, gains of 4.5dBi and 6.2dBi, respectively, in the free space and human body scenarios are achieved. As a result of the antenna’s tiny and flexible construction, as well as its outstanding impedance matching and high efficiency, it is a great option for short-distance wireless communication in close proximity to the human body.
{"title":"Flexible and Wearable Terahertz Antenna for Future Wireless Communication","authors":"Abdoalbaset Abohmra, H. Abbas, Masood Ur Rehman, M. Imran, Q. Abbasi","doi":"10.1109/iWAT54881.2022.9810911","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9810911","url":null,"abstract":"With the help of CsPbBr3 perovskite quantum material, we propose a wearable antenna that operates in the terahertz frequency range. CsPbBr3 was specifically employed to improve the performance of the antenna, and the findings reveal that the reflection coefficient and radiation efficiency of the antenna are improved. The performance of the antenna is assessed both on the skin and in free space. Based on the simulation findings, the suggested antenna has a bandwidth of 29 GHz and provides radiation efficiency of 90% in free-space and 45% on the human body. Moreover, gains of 4.5dBi and 6.2dBi, respectively, in the free space and human body scenarios are achieved. As a result of the antenna’s tiny and flexible construction, as well as its outstanding impedance matching and high efficiency, it is a great option for short-distance wireless communication in close proximity to the human body.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122642336","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811003
R. Hussung, S. Mohammadzadeh, D. Čibiraitė-Lukenskienė, A. Keil, F. Friederich
We present a particularly compact and hence portable device for millimeter-wave imaging at video rates up to 15 Hz. It is based on an antenna-array with 192 antennas, which operates in a frequency range between 65 and 78 GHz. The utilized SFCW based MIMO-radar principle allows a volumetric reconstruction with depth information. The depth resolution achieves 8mm and the lateral resolution 2mm. With its compact form factor and the high imaging rate, this system provides a flexibile solution for many industrial use cases. These include non-destructive testing of dielectric (composite) materials and inline quality control of paper-, cardboard- and plastic packaging. Since drywall installations are also penetratable by millimeter-waves, even the inspection of cables and pipes is feasable. While these examples cover a wide range of applications, the full variety of application-fields still has to be evaluated.
{"title":"Handheld Millimeter-Wave Imaging at Video Rates and its Applications","authors":"R. Hussung, S. Mohammadzadeh, D. Čibiraitė-Lukenskienė, A. Keil, F. Friederich","doi":"10.1109/iWAT54881.2022.9811003","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811003","url":null,"abstract":"We present a particularly compact and hence portable device for millimeter-wave imaging at video rates up to 15 Hz. It is based on an antenna-array with 192 antennas, which operates in a frequency range between 65 and 78 GHz. The utilized SFCW based MIMO-radar principle allows a volumetric reconstruction with depth information. The depth resolution achieves 8mm and the lateral resolution 2mm. With its compact form factor and the high imaging rate, this system provides a flexibile solution for many industrial use cases. These include non-destructive testing of dielectric (composite) materials and inline quality control of paper-, cardboard- and plastic packaging. Since drywall installations are also penetratable by millimeter-waves, even the inspection of cables and pipes is feasable. While these examples cover a wide range of applications, the full variety of application-fields still has to be evaluated.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123441860","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811089
H. Takhedmit, Mahdi Hamidouche, Viet-Duc Pham, L. Cirio
This paper focuses on the power optimization waveform, applied to the improvement of the efficiency and/or the maximum supply distance of far-field wireless power transfer systems. The emphasis is given to RF pulse modulation signal and multisine waveforms. The power conversion efficiency (PCE) of a RF-to-dc conversion circuits is strongly impacted by the threshold voltage of Schottky diodes at low RF power levels, and one of the objectives is to improve the efficiency under these conditions. An ultra-wide band rectifier, operating from 1.6 to 2.8 GHz, is used in this work. Significant improvement of the efficiency, compared to a CW signal, has been shown especially when the power level is small and the output load is large. Also, this work allowed evaluating the important parameters of the waveforms to be optimized.
{"title":"Power Optimized Waveform for Wireless Power Transfer Systems : Simulations and Experiments","authors":"H. Takhedmit, Mahdi Hamidouche, Viet-Duc Pham, L. Cirio","doi":"10.1109/iWAT54881.2022.9811089","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811089","url":null,"abstract":"This paper focuses on the power optimization waveform, applied to the improvement of the efficiency and/or the maximum supply distance of far-field wireless power transfer systems. The emphasis is given to RF pulse modulation signal and multisine waveforms. The power conversion efficiency (PCE) of a RF-to-dc conversion circuits is strongly impacted by the threshold voltage of Schottky diodes at low RF power levels, and one of the objectives is to improve the efficiency under these conditions. An ultra-wide band rectifier, operating from 1.6 to 2.8 GHz, is used in this work. Significant improvement of the efficiency, compared to a CW signal, has been shown especially when the power level is small and the output load is large. Also, this work allowed evaluating the important parameters of the waveforms to be optimized.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129934407","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811066
S. Shrestha, H. Zahra, Haider Ali, S. M. Abbas, M. Asadnia, K. Esselle
The three dimensional (3D) printable prototype using rapid printable technology, consisting of Beam Deviating Surface (BDS) and Conical Rotating Surface (CRS) is proposed to show the conical rotation of the beam. First the beam is tilted to +/- 22.50, when BDS is kept above the feed horn source. Simultaneously, when CRS is kept above the BDS prototype, with the separation of 1 mm, the conical rotation of the tilted beam across the defined area is observed. Initially, the BDS structure is designed with a minimum side lobe level of -8 dB, at frequencies ranging from 10 to 15 GHz. Then by maintaining the defined phase gradient values, CRS structure is designed. The two structures are of 120 mm × 120 mm × 30 mm (4.8λ × 4.8λ × 1.2λ). The Voltage Standing Wave Ratio (VSWR) is less than 2 for all the degrees of rotation of CRS prototype as the BDS is kept static. This signifies the wideband steering capability of the designed prototypes. The gain values were maintained from 12 to 21 dBi throughout the operating Ku band range.
{"title":"Conical Rotation of Beam using Three Dimensional Printable Prototype","authors":"S. Shrestha, H. Zahra, Haider Ali, S. M. Abbas, M. Asadnia, K. Esselle","doi":"10.1109/iWAT54881.2022.9811066","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811066","url":null,"abstract":"The three dimensional (3D) printable prototype using rapid printable technology, consisting of Beam Deviating Surface (BDS) and Conical Rotating Surface (CRS) is proposed to show the conical rotation of the beam. First the beam is tilted to +/- 22.50, when BDS is kept above the feed horn source. Simultaneously, when CRS is kept above the BDS prototype, with the separation of 1 mm, the conical rotation of the tilted beam across the defined area is observed. Initially, the BDS structure is designed with a minimum side lobe level of -8 dB, at frequencies ranging from 10 to 15 GHz. Then by maintaining the defined phase gradient values, CRS structure is designed. The two structures are of 120 mm × 120 mm × 30 mm (4.8λ × 4.8λ × 1.2λ). The Voltage Standing Wave Ratio (VSWR) is less than 2 for all the degrees of rotation of CRS prototype as the BDS is kept static. This signifies the wideband steering capability of the designed prototypes. The gain values were maintained from 12 to 21 dBi throughout the operating Ku band range.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125835802","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811009
Daniel Martinez-de-Rioja, J. Encinar, E. Martinez‐de‐Rioja, Á. F. Vaquero, M. Arrebola
This contribution proposes a simple closed-form formula to compute the phase-shift distribution on Intelligent Reflecting Surfaces (IRS), which can be implemented using metasurfaces or reflectarray panels. The proposed technique is based on introducing a quadratic phase correction to the phase distribution that generates a collimated beam. The phase correction allows to independently control the half-power beamwidth (HPBW) in azimuth and elevation for low-cost passive IRS panels. The capabilities of the technique have been demonstrated by computing the phase distribution and radiation patterns of a 40 cm × 40 cm IRS that redirects the beam in azimuth and elevation and broadens the beam from 2º to 4º in elevation and from 2º to 18º in azimuth. This technique is very useful to the design of low-cost passive IRS panels.
这篇文章提出了一个简单的封闭形式公式来计算智能反射表面(IRS)上的相移分布，这可以使用超表面或反射面板来实现。所提出的技术是基于对产生准直光束的相位分布引入二次相位校正。相位校正允许独立控制半功率波束宽度(HPBW)在方位角和仰角的低成本被动IRS面板。通过计算40 cm × 40 cm IRS的相位分布和辐射模式，证明了该技术的能力，该IRS在方位角和仰角上重新定向光束，并将光束从仰角2º扩大到4º，从方位角2º扩大到18º。该技术对低成本无源IRS面板的设计非常有用。
{"title":"A Simple Beamforming Technique for Intelligent Reflecting Surfaces in 5G Scenarios","authors":"Daniel Martinez-de-Rioja, J. Encinar, E. Martinez‐de‐Rioja, Á. F. Vaquero, M. Arrebola","doi":"10.1109/iWAT54881.2022.9811009","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811009","url":null,"abstract":"This contribution proposes a simple closed-form formula to compute the phase-shift distribution on Intelligent Reflecting Surfaces (IRS), which can be implemented using metasurfaces or reflectarray panels. The proposed technique is based on introducing a quadratic phase correction to the phase distribution that generates a collimated beam. The phase correction allows to independently control the half-power beamwidth (HPBW) in azimuth and elevation for low-cost passive IRS panels. The capabilities of the technique have been demonstrated by computing the phase distribution and radiation patterns of a 40 cm × 40 cm IRS that redirects the beam in azimuth and elevation and broadens the beam from 2º to 4º in elevation and from 2º to 18º in azimuth. This technique is very useful to the design of low-cost passive IRS panels.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125261077","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 : 2022-05-16DOI: 10.1109/iWAT54881.2022.9811010
Mengchu Wang, R. Scapaticci, S. Abedi, H. Roussel, N. Joachimowicz, S. Costanzo, M. Cavagnaro, L. Crocco
Liver cancer is one of the most deadly diseases worldwide with an increasing yearly fatality rate. Thermal ablation treatments are considered to be an effective alternative to conventional surgery, but the lack of an effective imaging modality to monitor the treatment prevents from a full exploitation of their therapeutic potential. As such, there is an increasing interest in developing alternative imaging modalities. In this framework, due to the fact that thermally treated tissue exhibits different dielectric properties as compared to untreated tissue, microwave imaging is a potential candidate, offering the possibility of performing the treatment monitoring task in a truly non-invasive way and by means of a portable and low cost apparatus. In this communication the prototype of a microwave imaging system to monitor thermal ablation of liver is presented together with its initial experimental validation. The observed results, although still preliminary, confirm the anticipated treatment monitoring capabilities of microwave imaging.
{"title":"A Microwave Imaging System Prototype for Liver Ablation Monitoring: Design and Initial Experimental Validation","authors":"Mengchu Wang, R. Scapaticci, S. Abedi, H. Roussel, N. Joachimowicz, S. Costanzo, M. Cavagnaro, L. Crocco","doi":"10.1109/iWAT54881.2022.9811010","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811010","url":null,"abstract":"Liver cancer is one of the most deadly diseases worldwide with an increasing yearly fatality rate. Thermal ablation treatments are considered to be an effective alternative to conventional surgery, but the lack of an effective imaging modality to monitor the treatment prevents from a full exploitation of their therapeutic potential. As such, there is an increasing interest in developing alternative imaging modalities. In this framework, due to the fact that thermally treated tissue exhibits different dielectric properties as compared to untreated tissue, microwave imaging is a potential candidate, offering the possibility of performing the treatment monitoring task in a truly non-invasive way and by means of a portable and low cost apparatus. In this communication the prototype of a microwave imaging system to monitor thermal ablation of liver is presented together with its initial experimental validation. The observed results, although still preliminary, confirm the anticipated treatment monitoring capabilities of microwave imaging.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121315698","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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