Pub Date : 2022-05-16DOI: 10.1109/iWAT54881.2022.9810999
Abdul Jabbar, Q. Abbasi, Muhammad Ali Imran, M. Rehman
In this paper, a planar rhombus-shaped microstrip patch antenna is proposed at 60 GHz ISM band for multi-gigabit per second level industrial communication in viewpoint of Industry 4.0. The proposed has -10 dB impedance bandwidth of 2.82 GHz at 60 GHz. The single antenna element presents excellent return loss of -65 dB at 60 GHz, high radiation efficiency of above 92.5 % in the whole band, and peak realized gain of 5.25 dBi. The radiation pattern of the antenna is stable in the whole band. The simulated 8 elements based linear array provides gain of 17.5 dBi and half power beamwidth of 8o in azimuth. The proposed antenna can be reconfigured at different resonance frequencies by altering the radius of the rhombus-shaped patch. The proposed antenna finds its applications for indoor industrial and factory automation operations in the unlicensed 60 GHz ISM band (IEEE 802.15.3c, 802.11ad and 802.11ay), as well as 60 GHz indoor localization.
{"title":"Design of a 60 GHz Microstrip Antenna for Multi-Gigabit Industrial Communication in Viewpoint of Industry 4.0","authors":"Abdul Jabbar, Q. Abbasi, Muhammad Ali Imran, M. Rehman","doi":"10.1109/iWAT54881.2022.9810999","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9810999","url":null,"abstract":"In this paper, a planar rhombus-shaped microstrip patch antenna is proposed at 60 GHz ISM band for multi-gigabit per second level industrial communication in viewpoint of Industry 4.0. The proposed has -10 dB impedance bandwidth of 2.82 GHz at 60 GHz. The single antenna element presents excellent return loss of -65 dB at 60 GHz, high radiation efficiency of above 92.5 % in the whole band, and peak realized gain of 5.25 dBi. The radiation pattern of the antenna is stable in the whole band. The simulated 8 elements based linear array provides gain of 17.5 dBi and half power beamwidth of 8o in azimuth. The proposed antenna can be reconfigured at different resonance frequencies by altering the radius of the rhombus-shaped patch. The proposed antenna finds its applications for indoor industrial and factory automation operations in the unlicensed 60 GHz ISM band (IEEE 802.15.3c, 802.11ad and 802.11ay), as well as 60 GHz indoor localization.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"66 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":"124528951","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/iWAT54881.2022.9811027
A. Costanzo, D. Masotti, E. Fazzini
This work overviews the design methodologies and system architectures for the successful activation of batteryless RF/microwave systems and their reliable operation in the context of the Internet-of-things paradigm, which is usually characterized by harsh electromagnetic environments. A multi-domain design approach is outlined, combining EM theory and numerical simulation with nonlinear circuit design, enabling consistent performance predictions of the RF systems. System examples are considered for both the TX and the RX sides suitable for application in Industrial and civil scenarios.
{"title":"RF/microwave energy-autonomous systems","authors":"A. Costanzo, D. Masotti, E. Fazzini","doi":"10.1109/iWAT54881.2022.9811027","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811027","url":null,"abstract":"This work overviews the design methodologies and system architectures for the successful activation of batteryless RF/microwave systems and their reliable operation in the context of the Internet-of-things paradigm, which is usually characterized by harsh electromagnetic environments. A multi-domain design approach is outlined, combining EM theory and numerical simulation with nonlinear circuit design, enabling consistent performance predictions of the RF systems. System examples are considered for both the TX and the RX sides suitable for application in Industrial and civil scenarios.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"47 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":"120960351","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/iWAT54881.2022.9811087
Raluca Simedroni, T. Palade, E. Puschita, P. Dolea, Cristian Codau, Rares-Calin Buta, A. Pastrav
In the framework of the Alphasat Q-band propagation experiment, this paper presents a short-term statistical analysis of Q-band beacon and meteorological data for the Cluj-Napoca, Romania receiver. At the beacon frequency of 39.402 GHz the signal attenuation varies with precipitations and other tropospheric phenomena, especially when the rain rate is high. The scope of this paper is to contribute to the Q-band measurement campaign with data corresponding to a temperate-continental climate.
{"title":"Short-term Q-band Characteristics and Meteorological Data Statistical Analysis","authors":"Raluca Simedroni, T. Palade, E. Puschita, P. Dolea, Cristian Codau, Rares-Calin Buta, A. Pastrav","doi":"10.1109/iWAT54881.2022.9811087","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811087","url":null,"abstract":"In the framework of the Alphasat Q-band propagation experiment, this paper presents a short-term statistical analysis of Q-band beacon and meteorological data for the Cluj-Napoca, Romania receiver. At the beacon frequency of 39.402 GHz the signal attenuation varies with precipitations and other tropospheric phenomena, especially when the rain rate is high. The scope of this paper is to contribute to the Q-band measurement campaign with data corresponding to a temperate-continental climate.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"31 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121005353","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/iWAT54881.2022.9811022
Igor Grigoriev, I. Munina
The lenses with a gradient refractive index become the alternative to the traditional homogeneous dielectric lenses. It can be fabricated using additive manufacturing. Some of the types of the lens support the multibeam operation or beam scanning capability by placing several feed antennas to the focal surface. In comparison with the Luneburg lens, in which the feeds are placed on a spherical focal surface, the truncated Gutman lens allows to avoid conformal antenna placement and used the planar structure of the feed antennas. In this paper, the influence of the truncation on the Gutman lens performance for a multibeam application is considered based on full-wave electromagnetic simulation. The approaches for Gutman lens design using 3D printing are proposed.
{"title":"Multibeam Truncated Gutman Lens based on Additive Manufacturing","authors":"Igor Grigoriev, I. Munina","doi":"10.1109/iWAT54881.2022.9811022","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811022","url":null,"abstract":"The lenses with a gradient refractive index become the alternative to the traditional homogeneous dielectric lenses. It can be fabricated using additive manufacturing. Some of the types of the lens support the multibeam operation or beam scanning capability by placing several feed antennas to the focal surface. In comparison with the Luneburg lens, in which the feeds are placed on a spherical focal surface, the truncated Gutman lens allows to avoid conformal antenna placement and used the planar structure of the feed antennas. In this paper, the influence of the truncation on the Gutman lens performance for a multibeam application is considered based on full-wave electromagnetic simulation. The approaches for Gutman lens design using 3D printing are proposed.","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":"134519595","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/iWAT54881.2022.9811007
X. Begaud, Anne Claire Lepage, O. Rance, M. Soiron, A. Barka, S. Laybros
This contribution presents the realization and measurement of a metamaterial absorber first designed with RF materials and replaced by structural composite materials, i.e. fiber reinforced. First, the optimization of the absorbing material took into account the electrical characteristics of the materials compatible with the targeted application. In a second step, it was necessary to optimize the whole again to take into account the process constraints, in particular the thickness of the composite ply combining fiber and resin. After measurement, this absorbing material has a magnitude of the reflection coefficient at normal incidence less than - 13.2 dB from 5.2 GHz to 18 GHz, for a total thickness of 8.9 mm.
{"title":"Realization and measurement of a wideband metamaterial absorber composed with structural composite materials","authors":"X. Begaud, Anne Claire Lepage, O. Rance, M. Soiron, A. Barka, S. Laybros","doi":"10.1109/iWAT54881.2022.9811007","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811007","url":null,"abstract":"This contribution presents the realization and measurement of a metamaterial absorber first designed with RF materials and replaced by structural composite materials, i.e. fiber reinforced. First, the optimization of the absorbing material took into account the electrical characteristics of the materials compatible with the targeted application. In a second step, it was necessary to optimize the whole again to take into account the process constraints, in particular the thickness of the composite ply combining fiber and resin. After measurement, this absorbing material has a magnitude of the reflection coefficient at normal incidence less than - 13.2 dB from 5.2 GHz to 18 GHz, for a total thickness of 8.9 mm.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"95 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":"133277437","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/iWAT54881.2022.9811065
H. Benchakroun, Declan O’Loughlin
Clinical trials using ten different Microwave Breast Imaging systems have been published including both academic and industrial systems. While trials with over 200 participants show promising detection results, substantial technical differences exist between the systems in terms of the antenna designs, antenna array designs and antenna performance specifications. In this work, the current state-of-the-art in operational microwave systems in terms of antennas are reviewed and preliminary limits on dimensions are identified. Gaps in understanding regarding the optimal number, configuration and performance of antennas are highlighted and future work regarding the impact of these design decisions on imaging performance identified.
{"title":"Identifying Microwave Antenna Design Limitations for Radar-based Breast Imaging","authors":"H. Benchakroun, Declan O’Loughlin","doi":"10.1109/iWAT54881.2022.9811065","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811065","url":null,"abstract":"Clinical trials using ten different Microwave Breast Imaging systems have been published including both academic and industrial systems. While trials with over 200 participants show promising detection results, substantial technical differences exist between the systems in terms of the antenna designs, antenna array designs and antenna performance specifications. In this work, the current state-of-the-art in operational microwave systems in terms of antennas are reviewed and preliminary limits on dimensions are identified. Gaps in understanding regarding the optimal number, configuration and performance of antennas are highlighted and future work regarding the impact of these design decisions on imaging performance identified.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"14 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":"131452002","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/iWAT54881.2022.9810904
Paschalina Foti, S. Koulouridis
During the past decade, electromagnetic torso scanning systems have rapidly become remarkably popular among researchers. In this paper, we propose a wearable triangular patch antenna incorporating a Complementary Split Ring Resonator (CSRR) on the ground for pneumothorax detection. The antenna operates within the 0.49 – 1.63 GHz frequency range and has dimensions of 22mm x 18mm. The addition of the CSRR structure on the ground can significantly reduce the dimensions of the antenna. Simulation is conducted using ANSYS HFSS environment. A three-layer model of the thorax is also integrated into the design.
{"title":"Wearable Patch Antenna using Complementary Split Ring Resonator for Pneumothorax Detection","authors":"Paschalina Foti, S. Koulouridis","doi":"10.1109/iWAT54881.2022.9810904","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9810904","url":null,"abstract":"During the past decade, electromagnetic torso scanning systems have rapidly become remarkably popular among researchers. In this paper, we propose a wearable triangular patch antenna incorporating a Complementary Split Ring Resonator (CSRR) on the ground for pneumothorax detection. The antenna operates within the 0.49 – 1.63 GHz frequency range and has dimensions of 22mm x 18mm. The addition of the CSRR structure on the ground can significantly reduce the dimensions of the antenna. Simulation is conducted using ANSYS HFSS environment. A three-layer model of the thorax is also integrated into the design.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"40 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":"123295531","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/iWAT54881.2022.9811077
Tarek S. Abdou, S. Khamas
A mm-wave circularly polarized, CP, wristwatch dielectric resonator antenna (DRA) is proposed as a potential candidate for off-body applications in the 24-34GHz frequency range. The proposed design has been excited using a cross slot aperture etched on the cylindrical ground plane and fed using a microstrip line. The antenna has been simulated using CST microwave studio in free space and on-wrist using equivalent elliptical cylindrical dielectric layers with parameters that are equivalent to those of the wrist. The DRA offers an impedance bandwidth of ~27%, a gain of 9.42 dBic, and a circular polarization bandwidth of ∼14.7% in free space. When placed on the wrist, the antenna achieved impedance and CP bandwidths of ~19% and 10.6%, respectively. To the best of our knowledge, this is the first attempt on a studying a mm-wave wristwatch DRA.
{"title":"A mm-wave Circularly Polarized Wristwatch Dielectric Resonator Antenna for Off-Body Communications","authors":"Tarek S. Abdou, S. Khamas","doi":"10.1109/iWAT54881.2022.9811077","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811077","url":null,"abstract":"A mm-wave circularly polarized, CP, wristwatch dielectric resonator antenna (DRA) is proposed as a potential candidate for off-body applications in the 24-34GHz frequency range. The proposed design has been excited using a cross slot aperture etched on the cylindrical ground plane and fed using a microstrip line. The antenna has been simulated using CST microwave studio in free space and on-wrist using equivalent elliptical cylindrical dielectric layers with parameters that are equivalent to those of the wrist. The DRA offers an impedance bandwidth of ~27%, a gain of 9.42 dBic, and a circular polarization bandwidth of ∼14.7% in free space. When placed on the wrist, the antenna achieved impedance and CP bandwidths of ~19% and 10.6%, respectively. To the best of our knowledge, this is the first attempt on a studying a mm-wave wristwatch DRA.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"23 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":"115877182","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/iWAT54881.2022.9811058
M. Hirose, T. Imai, Shengyi Wu, Satoshi Iwasaki, G. Ching, Y. Kishiki
Ray tracing parameters, that affect propagation characteristics, are great concern to improve propagation prediction in ray tracing simulation. A lot of literature reported ray tracing channel modeling with parameter tuning. Optimizing the parameters structurally was impacted on ray trace method. In this paper, an optimization system using a genetic algorithm was proposed, and system performance was evaluated by measured data.
{"title":"A Ray Tracing Parameter Optimization System in Mobile Radio Propagation Prediction","authors":"M. Hirose, T. Imai, Shengyi Wu, Satoshi Iwasaki, G. Ching, Y. Kishiki","doi":"10.1109/iWAT54881.2022.9811058","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9811058","url":null,"abstract":"Ray tracing parameters, that affect propagation characteristics, are great concern to improve propagation prediction in ray tracing simulation. A lot of literature reported ray tracing channel modeling with parameter tuning. Optimizing the parameters structurally was impacted on ray trace method. In this paper, an optimization system using a genetic algorithm was proposed, and system performance was evaluated by measured data.","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":"116325343","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/iWAT54881.2022.9810914
V. Fusco, G. G. Machado, R. Cahill, G. Conway
In this paper, we will present recent work at QUB in the area of ink-jet printed absorbers with applications in electromagnetic compatibility and spectral response control. A radio frequency (RF) enhanced spacecraft multi-layer insulator (MLI) was engineered by patterning its outermost layer using a resistively loaded hexagonal patch FSS. The structure ranges in thickness between λ/213 − λ/25 and absorbs unwanted reflections to decouple onboard antennas from the spacecraft’s structure. In addition, we also show the design of an antenna superstrate absorber designed for radar cross-section (RCS) reduction. The new antenna arrangement is capable of beam steering, preserving its beam shape when compared to the reference antenna, whilst reducing the RCS by 10 dB over a wide frequency range.
{"title":"Metamaterial absorber using conventional inkjet-printing technology applied to antennas","authors":"V. Fusco, G. G. Machado, R. Cahill, G. Conway","doi":"10.1109/iWAT54881.2022.9810914","DOIUrl":"https://doi.org/10.1109/iWAT54881.2022.9810914","url":null,"abstract":"In this paper, we will present recent work at QUB in the area of ink-jet printed absorbers with applications in electromagnetic compatibility and spectral response control. A radio frequency (RF) enhanced spacecraft multi-layer insulator (MLI) was engineered by patterning its outermost layer using a resistively loaded hexagonal patch FSS. The structure ranges in thickness between λ/213 − λ/25 and absorbs unwanted reflections to decouple onboard antennas from the spacecraft’s structure. In addition, we also show the design of an antenna superstrate absorber designed for radar cross-section (RCS) reduction. The new antenna arrangement is capable of beam steering, preserving its beam shape when compared to the reference antenna, whilst reducing the RCS by 10 dB over a wide frequency range.","PeriodicalId":106416,"journal":{"name":"2022 International Workshop on Antenna Technology (iWAT)","volume":"51 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":"120953393","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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