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Line-of-Sight Probability for Urban Microcell Network Deployments 城市微蜂窝网络部署的视距概率
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769560
D. Townend, S. Walker, Adrian Sharples, A. Sutton
{"title":"Line-of-Sight Probability for Urban Microcell Network Deployments","authors":"D. Townend, S. Walker, Adrian Sharples, A. Sutton","doi":"10.23919/eucap53622.2022.9769560","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769560","url":null,"abstract":"In this paper we present a new line-of-sight probability model for the urban micro cellular deployment scenario. This study utilises a high resolution 3D model of central London to conduct large scale ray-tracing of direct propagation paths between neighbouring lamp posts. These serve as a representation of mmWave self-backhauling small cells such as 3GPP integrated access and backhaul nodes. The statistical properties of the propagation paths are assessed against recognised line-of-sight probability models as a function of the distance between transmitter and receiver. Contributions as outlined in this paper have application in analytical studies aiming to understand the statistical characteristics of unobstructed high frequency ‘access’ links between microcell sites and end users as well as ‘transport’ backhaul links between neighbouring microcell sites.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"144 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133345783","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
Microfluidically Frequency & Polarization Reconfigurable Patch Antennas 微流控频率与极化可重构贴片天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769671
Hamza Kiani, David Chatzichristodoulou, Adnan Nadeem, Abdul Quddious, N. Shoaib, P. Vryonides, Dimitris E. Anagnostou, S. Nikolaou
{"title":"Microfluidically Frequency & Polarization Reconfigurable Patch Antennas","authors":"Hamza Kiani, David Chatzichristodoulou, Adnan Nadeem, Abdul Quddious, N. Shoaib, P. Vryonides, Dimitris E. Anagnostou, S. Nikolaou","doi":"10.23919/eucap53622.2022.9769671","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769671","url":null,"abstract":"Microfluidically frequency reconfigurable and polarization reconfigurable probe-fed patch antennas are presented in this paper. For the frequency reconfigurable antenna, a frequency tuning bandwidth of 14% (4.35-4.5 GHz) can be achieved by continuous loading of liquid metal inside the additively manufactured microfluidic channels on top of patch slots. During the frequency reconfigurability, the bandwidth remains greater than 5%, the gain remains higher than 7.5 dBi and there is polarization consistency over the complete tuning range. For the second antenna, switching between left-hand and right-hand circular polarization is demonstrated by alternatively inserting or removing metallic ink inside 3D printed Polylactic Acid (PLA) channels. For both polarization states stable reflection coefficient with −10 dB S11 bandwidth of 9.6% (4.48-4.93 GHz) and 3-dB axial ratio bandwidth (ARBW) of 5.2% (4.48-4.72 GHz, are achieved.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133638226","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
Radial Line Helical Phased Array with Antenna Elements Rotated by Motors for Microwave Power Transmissions 微波功率传输用电机旋转天线单元的径向线螺旋相控阵
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769212
N. Nakamoto, J. Goto, Yusuke Suzuki, T. Fukasawa, Toru Takahashi, Y. Inasawa, H. Miyashita
{"title":"Radial Line Helical Phased Array with Antenna Elements Rotated by Motors for Microwave Power Transmissions","authors":"N. Nakamoto, J. Goto, Yusuke Suzuki, T. Fukasawa, Toru Takahashi, Y. Inasawa, H. Miyashita","doi":"10.23919/eucap53622.2022.9769212","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769212","url":null,"abstract":"In this paper, we propose a novel radial line planar phased array in which helical antenna elements are individually rotated by their respective connected micromotors to realize dynamic beam-scanning. We designed, fabricated, and evaluated a 7 -circle array with 168 helical antennas fabricated using molded interconnect device technology. The prototype antenna exhibits dynamic and accurate beam-forming performance, and also exhibits a low reflection coefficient of less than -1 7 and high antenna efficiency of 77 %.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132695121","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
Low-Noise Amplifier-Antenna Co-Design Overview 低噪声放大器-天线协同设计概述
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769473
K. Alekseev, M. Hasselblad, K. Eriksson, M. Johansson, B. Smolders, U. Johannsen
{"title":"Low-Noise Amplifier-Antenna Co-Design Overview","authors":"K. Alekseev, M. Hasselblad, K. Eriksson, M. Johansson, B. Smolders, U. Johannsen","doi":"10.23919/eucap53622.2022.9769473","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769473","url":null,"abstract":"Antenna and low-noise amplifier (LNA) co-design is a promising method for increasing the sensitivity of millimeter-wave (mmWave) receiver systems. Co-design involves several individual steps which usually do not intersect with each other in one design flow, but this method combines all of them together and allows to obtain mutual benefits for all components. This paper gives an overview of several different mmWave engineering tasks like antennas and monolithic microwave integrated circuit (MMIC) design together with RF interconnection solutions like wirebonding, flip-chip and packaging technology. The suggestion of the mmWave receiver co-design for achieving minimum noise figure at low costs is also provided.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133166048","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
Radial Line Patch Array Antenna with Enhanced Circularly Polarized Beam-Steering Performance for K-Band Fixed Radio Links 用于k波段固定无线电链路的增强圆极化波束导向性能的径向线贴片阵列天线
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769236
A. Muriel-Barrado, O. A. Pla-Terrada, P. Sánchez-Olivares, J. Fernández-González, M. Sierra-Pérez
{"title":"Radial Line Patch Array Antenna with Enhanced Circularly Polarized Beam-Steering Performance for K-Band Fixed Radio Links","authors":"A. Muriel-Barrado, O. A. Pla-Terrada, P. Sánchez-Olivares, J. Fernández-González, M. Sierra-Pérez","doi":"10.23919/eucap53622.2022.9769236","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769236","url":null,"abstract":"This paper presents a design procedure for circularly polarized radial line patch array antennas that allows the steering of the main beam whereas the axial ratio is not drastically affected. This method is an extension of a previous publication, in which the radiated phase of each element was adjusted by rotation depending on its position in the lattice. This way, a partial sequential rotation is included. The used radial line patch array antenna is composed by double stacked patches as radiating elements. The design procedure allows to perform any of the two circular polarizations at K-Band (19.7 - 20.2 GHz) for SATCOM. An axial ratio below 2.2 dB for a ±30° steering angle in the azimuth and the elevation plane is achieved, with a gain decay of 2.5 dB with respect to broadside. All the configurations exhibit a good behaviour in terms of efficiency, with values near to 90%.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127872088","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 an E-Band 1-Bit Reconfigurable Reflectarray Antenna Using PIN Diodes 基于PIN二极管的e波段1位可重构反射阵天线设计
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769374
Changhao Liu, Yongli Ren, Fan Yang, Shenheng Xu, Maokun Li
{"title":"Design of an E-Band 1-Bit Reconfigurable Reflectarray Antenna Using PIN Diodes","authors":"Changhao Liu, Yongli Ren, Fan Yang, Shenheng Xu, Maokun Li","doi":"10.23919/eucap53622.2022.9769374","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769374","url":null,"abstract":"A 1-bit reconfigurable reflectarray antenna using PIN diodes is presented for 71-76GHz millimeter-wave communication applications. Based on the method of polarization conversion, the 0°/180° element phase is accurately realized by loading 2 PINs on each element in order to overcome the unstable parameters of PIN in E-band. A square aperture reflectarray consisting of $16times 16$ elements is then designed and analyzed. Full-wave simulation results demonstrate that the gain of the antenna is 17.1dBi, and the beam scanning angle can cover 45°.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131321197","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: 3
Improved Iterative DGFM Convergence, Towards Large-Scale Antenna Array Analysis 面向大规模天线阵分析的改进迭代DGFM收敛
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769201
André S. Conradie, M. Botha
{"title":"Improved Iterative DGFM Convergence, Towards Large-Scale Antenna Array Analysis","authors":"André S. Conradie, M. Botha","doi":"10.23919/eucap53622.2022.9769201","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769201","url":null,"abstract":"This paper presents an improvement to an iterative domain decomposition method for the analysis of large antenna arrays. The method considered, is the iterative domain Green's function method (DGFM), with extended local MoM domains. It yields an approximate solution to the global method of moments (MoM) problem via the solution of a succession of local sub-problems. The local sub-problems are obtained by rigorously formulating the MoM on local domains, with all array elements outside these local domains modelled using an improved far-current approximation which is a hybridisation of the DGFM and standard Jacobi approximations. Numerical results demonstrate that this new far-current approximation improves the convergence rate of the iterative DGFM-MoM. The improved formulation retains the main benefit of the DGFM, which is that it is well-suited to parallelisation.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"195 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131413709","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: 3
Fast Array Diagnosis Based on Measured Complex Array Signals with Short Measurement Distance 基于短测量距离复杂阵列信号的快速阵列诊断
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769553
Mengting Li, Fengchun Zhang, W. Fan
{"title":"Fast Array Diagnosis Based on Measured Complex Array Signals with Short Measurement Distance","authors":"Mengting Li, Fengchun Zhang, W. Fan","doi":"10.23919/eucap53622.2022.9769553","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769553","url":null,"abstract":"Fast array diagnosis method is of great importance for ensuring reliable array performances in the fifth generation (5G) communication systems. In this paper, a fast array diagnosis method is presented for antenna arrays composed of several subarrays. The objective is to detect the failures based on the measured complex array signals in short measurement distance. A single probe is required to record the array response in the near-field of the array. All the array elements are excited simultaneously, and only phase shift states of 0° and 180° are required in the measurements. For a base station (BS) antenna array with $N$ subarrays, $N+1$ measurements are required, resulting in a fast diagnosis process. Finally, the proposed method was validated in an antenna array composed of 4 subarrays with 3 antenna elements in each subarray and successful diagnosis results (for both the whole subarray and single antenna element failure cases) can be observed.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115544170","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
Large DUT Testing in FR2 MIMO OTA FR2 MIMO OTA中的大型DUT测试
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769567
J. Nuutinen, D. Reed, A. Rodriguez-Herrera
{"title":"Large DUT Testing in FR2 MIMO OTA","authors":"J. Nuutinen, D. Reed, A. Rodriguez-Herrera","doi":"10.23919/eucap53622.2022.9769567","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769567","url":null,"abstract":"This paper discusses the limited test volume of FR2 MIMO OTA test systems according to 3GPP specifications. The current FR2 MIMO OTA test system supports a 20 cm diameter UE size. However, 5G services are expected to include larger devices, such as tablets and small-scale monitors, as well. We show that the best way to improve the performance of the FR2 MIMO OTA system is to increase the chamber size to support a 1.75m range length instead of the current 0.75m range length. We also discuss the error factors inside the test volume, showing how the boundary of the test volume dominates the error.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115568583","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
Challenges for 5G and Beyond 5G及以后的挑战
2022 16th European Conference on Antennas and Propagation (EuCAP) Pub Date : 2022-03-27 DOI: 10.23919/eucap53622.2022.9769413
Jelena Senic, Anmol Bhardwaj, C. Gentile, Derek Caudill, Chiehping Lai, D. Senic, S. Jun, J. Chuang, Jian Wang, Anuraag Bodi, Raied Caromi, N. Golmie
{"title":"Challenges for 5G and Beyond","authors":"Jelena Senic, Anmol Bhardwaj, C. Gentile, Derek Caudill, Chiehping Lai, D. Senic, S. Jun, J. Chuang, Jian Wang, Anuraag Bodi, Raied Caromi, N. Golmie","doi":"10.23919/eucap53622.2022.9769413","DOIUrl":"https://doi.org/10.23919/eucap53622.2022.9769413","url":null,"abstract":"In this paper, we discuss some challenges for 5G-and-beyond communications systems based on our measurements conducted with millimeter-wave (mmWave) channel sounders. One study analyzes path loss at 28 GHz vs. 83 GHz and in line-of-sight conditions vs. non-line-of-sight conditions and finds it to depend much more heavily on the latter than the former. A significant factor of path loss is penetration loss; in fact, another study focuses on obstructions that are typical in wireless environments: building walls, human bodies, and trees. Finally, in addition to investigating how power is distributed over distance through path loss, we also investigate how power is distributed over delay and angle per distance, otherwise referred to as channel dispersion. In particular, we discuss the importance of diffuse multipath to the total received power at mmWave and the foregone conclusion of wide-sense stationarity, which we show will often not apply to mmWave small-scale fading.","PeriodicalId":228461,"journal":{"name":"2022 16th European Conference on Antennas and Propagation (EuCAP)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115744160","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: 2
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