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Angle-Resolved THz Channel Measurements at 300 GHz in a Shopping Mall Scenario 购物中心场景中 300 GHz 的角度分辨太赫兹通道测量
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133686
A. Schultze, Ramez Askar, M. Peter, W. Keusgen, Taro Eichler
{"title":"Angle-Resolved THz Channel Measurements at 300 GHz in a Shopping Mall Scenario","authors":"A. Schultze, Ramez Askar, M. Peter, W. Keusgen, Taro Eichler","doi":"10.23919/EuCAP57121.2023.10133686","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133686","url":null,"abstract":"This paper presents first results of channel measurements conducted at 300GHz in a shopping mall scenario. For understanding the radio channel’s behaviour in such scenarios within the sub-THz and THz domain, a measurement campaign in the atrium of a large company building was carried out. Angle-resolved channel impulse responses were analysed with regards to channel parameters such as delay and angular spread. A novelty of this work is the analysis of mentioned parameters with regards to synthetic beamwidth of the receiver and various signal-tonoise ratio (SNR) conditions. The analysis shows that with a decreasing receiver (RX) antenna directivity and an increasing SNR the number of multipath components increases rapidly.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"2 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":"130753802","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
Distance and Efficiency Improvement in Wireless Power Transfer Systems through Steering Magnetic Field using Metasurface with Negative Permeability 利用负磁导率超表面引导磁场提高无线电力传输系统的距离和效率
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/eucap57121.2023.10133615
Said Choukri, H. Takhedmit, O. El Mrabet, Mahdi Hamidouche, L. Cirio
{"title":"Distance and Efficiency Improvement in Wireless Power Transfer Systems through Steering Magnetic Field using Metasurface with Negative Permeability","authors":"Said Choukri, H. Takhedmit, O. El Mrabet, Mahdi Hamidouche, L. Cirio","doi":"10.23919/eucap57121.2023.10133615","DOIUrl":"https://doi.org/10.23919/eucap57121.2023.10133615","url":null,"abstract":"This work presents a new Wireless Power Transfer (WPT) system with improved transfer distance and power efficiency. The enhancement of power transmission is provided by integrating a metasurface with negative permeability in the middle of the transfer distance between the Tx and Rx antennas. A new design of magnetic dipole antenna is done, and used for both Tx and Rx sides. Simulation and measurement results show that the Power Transfer Efficiency (PTE) of the TxZRx elements achieves 29 % and 27.30 %, respectively, while when integrating the metasurface the PTE is about 72.67 % and 57.77 %, respectively, hence 30.47 % of PTE improvement is achieved in experiments at the transfer distance of 60 mm.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"76 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":"132848742","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
Connected Arrays of Slots with Reduced Number of Active Controls: Efficiency, Matching and Radiation Pattern Agility 减少主动控制数量的槽连接阵列:效率、匹配和辐射模式敏捷性
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133142
Christos Monochristou, Shang Xiang, M. Holm, R. Sauleau, M. Ettorre
{"title":"Connected Arrays of Slots with Reduced Number of Active Controls: Efficiency, Matching and Radiation Pattern Agility","authors":"Christos Monochristou, Shang Xiang, M. Holm, R. Sauleau, M. Ettorre","doi":"10.23919/EuCAP57121.2023.10133142","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133142","url":null,"abstract":"Sparse arrays attract a lot of interest due to their potential to significantly simplify phased arrays while maintaining their agile operation. However, the majority of studies concern numerical synthesis techniques and little attention is paid to the practical implication of such arrays. The present work analyzes finite×infinite sparse configurations of connected arrays by full-wave simulations to evaluate their performance in terms of array efficiency, optimal lattice and radiation pattern quality. The proposed study also takes into account the mutual coupling among the array elements and the appropriate termination of the inactive elements to boost the array performance.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"6 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":"132984798","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
Analysis of GRIN Lenses with PEC Elements Using a 2D Cylindrical Electromagnetic Solver 用二维圆柱形电磁求解器分析带有PEC元件的GRIN透镜
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133554
Vincent Kaschten, Dimitri Lederer, Christophe Craeye
{"title":"Analysis of GRIN Lenses with PEC Elements Using a 2D Cylindrical Electromagnetic Solver","authors":"Vincent Kaschten, Dimitri Lederer, Christophe Craeye","doi":"10.23919/EuCAP57121.2023.10133554","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133554","url":null,"abstract":"We propose a mathematical formulation for studying the 2D propagation of electromagnetic waves throughout a cylindrical GRIN lens, when the source is located inside the lens. The lens can contain electrically small cylindrical PEC elements, whose effect on the propagation can be analyzed.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"88 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":"133062116","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
Broadbeam Geodesic H-plane Horn Antenna 宽频测地线h面喇叭天线
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133122
Mingzheng Chen, F. Mesa, O. Quevedo–Teruel
{"title":"Broadbeam Geodesic H-plane Horn Antenna","authors":"Mingzheng Chen, F. Mesa, O. Quevedo–Teruel","doi":"10.23919/EuCAP57121.2023.10133122","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133122","url":null,"abstract":"We propose broadbeam geodesic H-plane horn antennas, potentially useful as simple primary feeds for reflectors. Since H-plane horn antennas are implemented in a structure similar to the parallel-plate waveguide, we show that a numerically efficient ray-tracing model can be used to describe wave propagation through them. Using the efficient ray-tracing tool, we optimize three different height profiles to obtain broad beams with different half-power beamwidths at the central operating frequency of 30GHz. All implemented structures have beamwidths larger than those of a planar reference counterpart.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"41 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":"133372946","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
A Triple-Mode Dual-Polarized Metasurface Antenna for 5G Terminal Applications 面向5G终端应用的三模双极化超表面天线
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133389
Long Qian, Xiao-dong Chen, Hanyang Wang, Hai Zhou, Meng Hou
{"title":"A Triple-Mode Dual-Polarized Metasurface Antenna for 5G Terminal Applications","authors":"Long Qian, Xiao-dong Chen, Hanyang Wang, Hai Zhou, Meng Hou","doi":"10.23919/EuCAP57121.2023.10133389","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133389","url":null,"abstract":"This paper presents a triple-mode dual-polarized metasurface antenna with high isolation for fifth-generation (5G) terminal applications. The proposed antenna consists of a 4 × 4 nonuniform metasurface radiator and a cross-shaped feeding probe. Based on the theory of characteristic modes (TCM), the resonance potential of the different characteristic modes (CMs) is discussed for the proposed nonuniform metasurface radiator. By combining the differential-fed scheme, three pairs of degenerate modes can be excited to realize wide impedance bandwidth. Meanwhile, the independent tuning characteristics for the three resonances are also achieved. The simulated results show the proposed dual-polarized antenna with a low profile of 1.8 mm can cover 3.3-4.2 GHz with 45 dB isolation, which is promising to be applied to the dielectric back cover of 5G mobile devices.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"10 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":"133242667","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
A Planar Distributed Receiver Coil Antenna Array to Encapsulate Vertical and Lateral H-Fields for Drone Wireless Charging 一种用于无人机无线充电的平面分布式接收线圈天线阵列封装垂直和横向h场
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133370
V. K. Srivastava, Ananth Bharadwaj, Ashwani Sharma
{"title":"A Planar Distributed Receiver Coil Antenna Array to Encapsulate Vertical and Lateral H-Fields for Drone Wireless Charging","authors":"V. K. Srivastava, Ananth Bharadwaj, Ashwani Sharma","doi":"10.23919/EuCAP57121.2023.10133370","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133370","url":null,"abstract":"This paper presents a planar distributed receiver coil antenna array to harvest all the magnetic field components generated by a conventional transmitter for drone charging applications. For this purpose, four anti-parallel turn coils are placed on four arms of the drone to harvest lateral field components along with a conventional circular Rx coil that harvests vertical magnetic field. A DC combining technique is proposed for combining the output voltages induced in each receiver coil to avoid destructive superposition of responses. An EM simulator is used to analyze the potential of harvesting lateral fields by the proposed anti-parallel turn coils. Later, the anti-parallel turn coils’ positions are determined based on the maximum voltage induced in these coils. The system is further verified using an experimental setup, and the results prove a significant enhancement of output voltage. Thus, proving the potential of the proposed Rx coil antenna suitable for drone charging applications.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"783 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":"133250271","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
Estimation of Active Standing Wave Ratio in finite size phased array – example for a Ka-band SatCom application 有限尺寸相控阵中有效驻波比的估计——以ka波段卫星通信应用为例
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133411
M. Thevenot, C. Menudier, B. Lesur, A. Lohou, J. Lintignat, B. Barelaud, C. Melle, A. Karas
{"title":"Estimation of Active Standing Wave Ratio in finite size phased array – example for a Ka-band SatCom application","authors":"M. Thevenot, C. Menudier, B. Lesur, A. Lohou, J. Lintignat, B. Barelaud, C. Melle, A. Karas","doi":"10.23919/EuCAP57121.2023.10133411","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133411","url":null,"abstract":"Phased array for Satcom applications are based on high-level specifications. By using an Active Electronically Scanned Array (AESA), it is mandatory to predict and analyze the energy consumption while the radiating elements are directly connected to the amplifier stage of the beamformer integrated circuits. This work details a design in Ka-band for such an application with a wide-angle beamsteering (θ0=70°). An analysis of the active reflection coefficients in a 256-elements finite size array is proposed without the need for a full-wave simulation.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"136 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":"131679195","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
Impact of the Asymmetric Signal Routing on the Wideband Spatial Behavior of Large Modular Phased Arrays 非对称信号路由对大型模块相控阵宽带空间特性的影响
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133514
D. Delfini, N. Tervo, M. Leinonen, A. Pärssinen
{"title":"Impact of the Asymmetric Signal Routing on the Wideband Spatial Behavior of Large Modular Phased Arrays","authors":"D. Delfini, N. Tervo, M. Leinonen, A. Pärssinen","doi":"10.23919/EuCAP57121.2023.10133514","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133514","url":null,"abstract":"Phased arrays have typically equal lengths for all antenna paths. This paper compares three phased array architectures for 5/6G applications. The first two arrays present unequal-length feeding networks, while the third array is the corporate-fed one. The first array is fed from the center, while the second is fed from the side. The impacts of the unsymmetrical feeding network on the bandwidths are analyzed and compared to the corporate-fed array. We show that side-fed arrays present higher bandwidths for higher steering angles, while center-fed arrays work better in the broadside region. Moreover, side-fed arrays can also be better than corporate-fed ones near the end-fire region, making them a good alternative to reduce the footprint of the feeding networks. Finally, we illustrate that if the feeding point can be varied as a function of the desired steering angle, the broadband performance of the array can be optimized for different steering angles.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"7 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":"124268784","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
Submillimeter wavelength radiometry dedicated to spectral analysis of planetary atmospheres: Low noise system development at Paris Observatory 致力于行星大气光谱分析的亚毫米波辐射测量:巴黎天文台的低噪声系统开发
2023 17th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2023-03-26 DOI: 10.23919/EuCAP57121.2023.10133490
G. Gay, J. Treuttel, L. Gatilova, A. Feret, T. Vacelet, J. Valentin, A. Cavanna, Y. Jin, J. Krieg, J. Roux, V. Cipolla, C. Goldstein, J. Puech
{"title":"Submillimeter wavelength radiometry dedicated to spectral analysis of planetary atmospheres: Low noise system development at Paris Observatory","authors":"G. Gay, J. Treuttel, L. Gatilova, A. Feret, T. Vacelet, J. Valentin, A. Cavanna, Y. Jin, J. Krieg, J. Roux, V. Cipolla, C. Goldstein, J. Puech","doi":"10.23919/EuCAP57121.2023.10133490","DOIUrl":"https://doi.org/10.23919/EuCAP57121.2023.10133490","url":null,"abstract":"We address the development of low noise system radiometer for heterodyne detection at Terahertz frequencies for high spectral resolution instruments (typ. 107) at Observatoire de Paris PSL. This work highlights constant effort to aim at keeping state-of-the-art receiver noise performances from 300 GHz to 1200 GHz and above for molecular line and continuum detection. In this work we concentrate on the mixer element as the first active element of the radiometric chain. We present the current ongoing work for the demonstration of a low-noise 325 GHz radiometer for earth atmospheric sounding applications. Three types of mixer configurations have been optimized and some of them fabricated and measured. We discuss some, but not all, of the system related aspect and the choice of mixer parameters for best performance that will provide stability for the long-term operation.","PeriodicalId":103360,"journal":{"name":"2023 17th European Conference on Antennas and Propagation (EuCAP)","volume":"16 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":"124291477","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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