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Integrated Waveguide-in-Radome Antenna for V-band In-Cabin Automotive Radar Applications v波段车载雷达天线罩集成波导天线
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133332
Alejandro García-Tejero, F. R. Varela, M. Burgos-García, Francesco Merli
{"title":"Integrated Waveguide-in-Radome Antenna for V-band In-Cabin Automotive Radar Applications","authors":"Alejandro García-Tejero, F. R. Varela, M. Burgos-García, Francesco Merli","doi":"10.23919/EuCAP57121.2023.10133332","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133332","url":null,"abstract":"The concept of an integrated waveguide-in-radome antenna is introduced. Even though this concept could be helpful for 76 GHz automotive radar or industrial applications at 120 or 140 GHz, an exemplary design for automotive in-cabin MIMO radar application is presented. The radiator consists of a slotted waveguide antenna manufactured and metalized over the inner surface of the radome. By placing the radome over the metallic ground plane of the printed circuit board, a waveguide is obtained, which routes the signal from the MMIC output to the different radiators of the MIMO antenna. Furthermore, an AMC surface is included to cancel parasitic waves propagating through the radome and improve the radiation characteristics. Excellent free space performance is achieved in the 59-64 GHz band, with impedance bandwidth up to 15%, a FOV of 120° in all planes, and a radiation efficiency of 83%.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130231210","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
Low Profile Pattern Reconfigurable ESPAR for UAVs in IoT Applications 物联网应用中无人机的低轮廓模式可重构ESPAR
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133027
F. Positano, L. Santamaria, R. Staraj, L. Lizzi
{"title":"Low Profile Pattern Reconfigurable ESPAR for UAVs in IoT Applications","authors":"F. Positano, L. Santamaria, R. Staraj, L. Lizzi","doi":"10.23919/EuCAP57121.2023.10133027","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133027","url":null,"abstract":"A 6 direction pattern reconfigurable Electronically Steerable Parasitic Array Radiator (ESPAR) system is proposed to work at 5.075 GHz, in the C-Band dedicated to unmanned aerial vehicles. This single fed antenna can switch among 6 directive beams across the whole azimuth plane, thanks to the coupling with its parasitic elements. The directional reconfiguration is enabled by changing reactive loads on each parasitic element. The proposed antenna is light weight, low profile and high gain in each directive state. Measurements on a static single beam configuration and simulated results on the reconfiguration circuit are presented to confirm the effectiveness of the design principles.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130245641","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
Performance and Reliability of 5G Communications for USV-UAV Critical Applications USV-UAV关键应用中5G通信的性能和可靠性
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10132977
K. Xue, J. Rodríguez-Piñeiro, Yuning Yu, Jingxiang Hong, X. Yin, Xie Shunqin
{"title":"Performance and Reliability of 5G Communications for USV-UAV Critical Applications","authors":"K. Xue, J. Rodríguez-Piñeiro, Yuning Yu, Jingxiang Hong, X. Yin, Xie Shunqin","doi":"10.23919/EuCAP57121.2023.10132977","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10132977","url":null,"abstract":"With the development of fifth generation (5G) and 5G and beyond (B5G) mobile communications, unmanned vehicles are gaining attention. In critical applications, such as rescue operations, cooperative operation between unmanned vehicles, like unmanned aerial vehicles (UAVs) and unmanned surface vehicles (USVs), is required. In order to implement these applications, reliable communications between the vehicles become necessary. In this paper, based on propagation results obtained by measurements, we evaluate the communications performance between a USV and a UAV, considering metrics like the Block Error Rate (BLER), the end-to-end delay, the throughput and the packet loss ratio. The results show that in order to satisfy the reliability requirements for critical communications established by the 3rd Generation Partnership Project (3GPP), the Modulation and Coding Scheme (MCS) index needs to be carefully optimized. The obtained results are of great importance to evaluate whether current 5G deployments can support critical communications for UAV-USV communications.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134325213","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
Multiyear assessment of ground-based Sun-tracking microwave radiometric observations in Rome, NY (USA) at millimeter and sub-millimeter wavelengths 在美国纽约州罗马以毫米和亚毫米波长对地基太阳跟踪微波辐射观测的多年评估
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133523
L. Milani, M. Biscarini, V. Mattioli, G. Brost, F. Marzano
{"title":"Multiyear assessment of ground-based Sun-tracking microwave radiometric observations in Rome, NY (USA) at millimeter and sub-millimeter wavelengths","authors":"L. Milani, M. Biscarini, V. Mattioli, G. Brost, F. Marzano","doi":"10.23919/EuCAP57121.2023.10133523","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133523","url":null,"abstract":"Ground-based Sun-tracking microwave radiometric observations allow to exploit the Sun radiation as a signal source, similarly to beacon experiments. Antenna noise temperature measurements are performed by alternately pointing toward-the-Sun and off-the-Sun while tracking the Sun along the diurnal ecliptic. The Sun-Tracking microwave observations are twofold: on one hand, they provide means to estimate the Sun brightness temperature during purely clear-air conditions and, on the other hand, retrieve the atmospheric path attenuation in nearly all-weather conditions, by profiting of the known Sun brightness temperature estimates. In this paper, measurements at K- and Ka-band are analyzed, as well as observations in the marginally explored millimeter-wave frequency region at V- and W-band. A multi-year dataset was assessed, ranging from 2015 until 2018, collected by a Sun-tracking multifrequency radiometer located in Rome, NY (USA). Expanded considerations on Sun brightness temperature trends are reported, together with long-term estimates of the all-weather atmospheric path attenuation. These are then compared with well-established microwave radiometry retrieval methods to test the accuracy of the estimations.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134388943","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
Separating Field Contributions by their Source Volumes: Uniqueness and Limitations 按来源卷划分领域贡献:独特性和局限性
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133465
J. Knapp, T. Eibert
{"title":"Separating Field Contributions by their Source Volumes: Uniqueness and Limitations","authors":"J. Knapp, T. Eibert","doi":"10.23919/EuCAP57121.2023.10133465","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133465","url":null,"abstract":"Being able to reconstruct the sources of a radiated electromagnetic field is important for echo suppression of antenna measurements as well as source diagnostics. If two source domains are too close, the sources cannot be assigned uniquely to either of the source domains due to the finite measurement accuracy. This work investigates how the ability of separating the sources of an observed field depends on the separation distance between the source domains. By studying the singular value spectrum of the system matrices an estimate for the critical distance is developed after which source ambiguities no longer appear. If only one of the source domains is considered in the reconstruction, source contributions from the other source domain distort the reconstructed sources. An estimate for the magnitude of the distortion is also reported. Modifications of the formulations avoid explicit singular value decompositions and make it possible to apply the estimates also to electrically large source domains. A numerical example shows that the predictions accurately match the observed error behavior in the reconstructed sources.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131620535","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
Body Posture Measurement Based on Textile UHF-RFID Technology 基于纺织品UHF-RFID技术的人体姿势测量
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133050
Chengynag Luo, I. Gil, R. Fernández-García
{"title":"Body Posture Measurement Based on Textile UHF-RFID Technology","authors":"Chengynag Luo, I. Gil, R. Fernández-García","doi":"10.23919/EuCAP57121.2023.10133050","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133050","url":null,"abstract":"With the development of the healthcare field, multi-application textile tags are worth exploring. In this paper, three types of body postures are tested by a proposed textile UHF-RFID tag, including monitoring a bent knee, a bent elbow and bent back. The RSSI-angle fitting curves on the bent knee and elbow conform to quadratic function models whereas the fitting curve on the back conforms to an exponential function. Through the experimental measurements, the proposed textile UHF-RFID tag is proved to have the feasibility of monitoring the bending level of the three types of body postures by the correspondence between the RSSI and bending angles.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"43 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131750758","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
Power Angular Spectrum versus Doppler Spectrum – Measurements and Analysis 功率角谱与多普勒谱——测量与分析
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133231
J. Kelner, C. Ziółkowski, Michał Kryk, J. Wojtun, L. Nowosielski, R. Przesmycki, M. Bugaj, A. Chandra, R. Shukla, Anirban Ghosh, A. Prokeš, T. Mikulášek
{"title":"Power Angular Spectrum versus Doppler Spectrum – Measurements and Analysis","authors":"J. Kelner, C. Ziółkowski, Michał Kryk, J. Wojtun, L. Nowosielski, R. Przesmycki, M. Bugaj, A. Chandra, R. Shukla, Anirban Ghosh, A. Prokeš, T. Mikulášek","doi":"10.23919/EuCAP57121.2023.10133231","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133231","url":null,"abstract":"In this paper, we present an empirical verification of the method of determining the Doppler spectrum (DS) from the power angular spectrum (PAS). Measurements were made for the frequency of 3.5 GHz, under non-line-of-sight conditions in suburban areas characteristic of a university campus. In the static scenario, the measured PAS was the basis for the determination of DSs, which were compared with the DSs measured in the mobile scenario. The obtained results show that the proposed method gives some approximation to DS determined with the classic methods used so far.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131811839","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
Achieving Full Azimuth Coverage in a Planar Lens Antenna 实现平面透镜天线的全方位覆盖
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133406
F. V. Vidarsson, O. Zetterstrom, A. Algaba-Brazález, L. Manholm, M. Johansson, O. Quevedo–Teruel
{"title":"Achieving Full Azimuth Coverage in a Planar Lens Antenna","authors":"F. V. Vidarsson, O. Zetterstrom, A. Algaba-Brazález, L. Manholm, M. Johansson, O. Quevedo–Teruel","doi":"10.23919/EuCAP57121.2023.10133406","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133406","url":null,"abstract":"In this paper we present a lens antenna that can scan in the whole azimuthal plane. This is achieved by using two planar generalized Luneburg lenses that are connected through multiple 3 dB 90 degrees hybrid couplers. The antenna is designed for the 3GPP n260 band operating from 37 to 40 GHz making it suitable for indoor 5G coverage. Simulation results of the antenna are presented to illustrate that it can scan in the full azimuth plane.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133082686","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
Design of Reconfigurable Intelligent Surfaces at mmWave with Application to 5G/6G 应用于5G/6G的毫米波可重构智能表面设计
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133769
J. Gros, L. Santamaria, V. Popov, M. Odit, V. Lenets, Xhoandri Lleshi, Ayoub Toubal, Youssef Nasser
{"title":"Design of Reconfigurable Intelligent Surfaces at mmWave with Application to 5G/6G","authors":"J. Gros, L. Santamaria, V. Popov, M. Odit, V. Lenets, Xhoandri Lleshi, Ayoub Toubal, Youssef Nasser","doi":"10.23919/EuCAP57121.2023.10133769","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133769","url":null,"abstract":"This paper describes the design and the prototype of a Reconfigurable Intelligent Surface (RIS) operating at mmWave. The design process includes the fundamental steps, i.e., single unit cell design, its improvement, and the full characterization of the RIS. The prototyped RIS is then demonstrated in a full setup as the first 5G/6G access point extender operating at this frequency. The prototype is the first of its kind developed by the cutting-edge technology of Greenerwave.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127571173","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
Validation of Blended Rolled Edge Reflector Characteristics for Compact Test Ranges 紧凑试验场混合轧制边缘反射器特性的验证
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133057
R. Dubrovka, C. Parini, S. Gregson
{"title":"Validation of Blended Rolled Edge Reflector Characteristics for Compact Test Ranges","authors":"R. Dubrovka, C. Parini, S. Gregson","doi":"10.23919/EuCAP57121.2023.10133057","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133057","url":null,"abstract":"This paper presents a recent advance in designing and validating blended rolled edge (BRE) reflectors for compact antenna test range (CATR) applications. BRE reflectors offer the potential of very smooth near-field patterns in the quiet zone (QZ) due to their improved diffraction characteristics. In house equivalent currents based physical optics (PO) simulation code results were compared and validated against Altair Feko Method of Moment (MoM) simulations for various BRE reflectors. Reflector comparisons have been shown for different modelling scenarios, eg. imported CAD files versus surface created using Lua macros coding, which is a built-in macros language in Altair Feko. All results are in a very good agreement, including cross polar magnitude and phase.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129383112","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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