IEEE Open Journal of Antennas and Propagation最新文献_第7页

Design and Analysis of a Carbonyl Iron Powder/Epoxy Composite-Based Ultra-Wideband Multi-Pyramidal Magnetic Absorber Using an Equivalent Circuit Model

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-25 DOI: 10.1109/OJAP.2024.3467342

Aparna Parameswaran;Nohgyeom Ha;Soo Hyun Kim;Sukjin Kwon;Byeongjin Park;Sangkil Kim

{"title":"Design and Analysis of a Carbonyl Iron Powder/Epoxy Composite-Based Ultra-Wideband Multi-Pyramidal Magnetic Absorber Using an Equivalent Circuit Model","authors":"Aparna Parameswaran;Nohgyeom Ha;Soo Hyun Kim;Sukjin Kwon;Byeongjin Park;Sangkil Kim","doi":"10.1109/OJAP.2024.3467342","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3467342","url":null,"abstract":"This paper presents a CIP/epoxy composite based ultra-wide band electromagnetic multipyramidal absorber. The constituent parameters of the CIP/epoxy composite is experimentally extracted using a waveguide measurement setup. This raw data is then quantified using a least-square fit polynomial based curve fitting technique to facilitate its use in the design and the analysis of the pyramidal absorber. Four asymmetrical truncated pyramids supported by a grounded base constitute the absorber unit cell. The absorption bandwidth of the design ranges from 3.21 GHz to 40 GHz (FBW of 170.3%, S - band to V - band) and stable absorption characteristics under oblique incidences is observed up to 35°. To enhance the understanding of its operational principles, an equivalent circuit model (ECM) based on planar multi-layer structure incorporating both synthetic capacitance and inductance models is proposed. Validation of the proposed absorber is done by measuring the performance of its prototype.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 1","pages":"88-97"},"PeriodicalIF":3.5,"publicationDate":"2024-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10693442","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Path Loss Modeling of Wireless Signals in Underground Tunnels

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-24 DOI: 10.1109/OJAP.2024.3467058

Yaning Li;Baoguo Yu;Lu Huang

{"title":"Path Loss Modeling of Wireless Signals in Underground Tunnels","authors":"Yaning Li;Baoguo Yu;Lu Huang","doi":"10.1109/OJAP.2024.3467058","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3467058","url":null,"abstract":"The environmental characteristics of underground tunnels are very different from those of open spaces. Typical features of underground tunnels (sidewall roughness, metal conductors, tunnel inclinations, etc.) significantly affect signal propagation, making it difficult for a single modeling approach to accurately describe the field strength attenuation of a wireless channel in an underground tunnel. In this paper, a hybrid model describing the propagation attenuation of wireless signals in underground tunnels is proposed, which divides the propagation channel into three subdomains according to the length of the tunnel, namely, the region of the free space propagation model, the region of the multimode propagation described by the ray tracing method, and the region of the improved waveguide model by adding the influences of tunnel roughness, tunnel inclination, and metal pipes. The determination of the breakpoints separating each region depends on the variation of the angle between the arrival direction of the signal ray and the axial direction of the tunnel. The proposed channel model is validated by simulation and experimental measurements, and the results show that the proposed model agrees well with the measured data and outperforms the current most advanced channel propagation fading model, with a 16.2% reduction of model error for the empty straight tunnel, and a 32.0% reduction of model error for the tunnel with metal pipes.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 1","pages":"64-74"},"PeriodicalIF":3.5,"publicationDate":"2024-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10690171","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107073","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficient Synthesis of Large Finite Patch Arrays for Scanning Wide-Angle Anomalous Reflectors

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-24 DOI: 10.1109/OJAP.2024.3466890

Sravan Kumar Reddy Vuyyuru;Risto Valkonen;Sergei A. Tretyakov;Do-Hoon Kwon

引用次数: 0

Advanced Metasurface-Based Antennas: A Review

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-23 DOI: 10.1109/OJAP.2024.3465513

Wanchen Yang;Jinghao Li;Dongxu Chen;Yue Cao;Quan Xue;Wenquan Che

{"title":"Advanced Metasurface-Based Antennas: A Review","authors":"Wanchen Yang;Jinghao Li;Dongxu Chen;Yue Cao;Quan Xue;Wenquan Che","doi":"10.1109/OJAP.2024.3465513","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3465513","url":null,"abstract":"As one kind of two-dimensional metamaterials, metasurface structures are widely applied in antennas due to the special abilities of manipulating the amplitude, phase, polarization states and the propagation modes of electromagnetic wave. This article briefly presents a series of combinations of metasurface and antennas from the perspective of design methods and innovative features, which are divided into three sections: performance improvement, function manipulation and other applications. In the section of performance improvement, three typical applications of metasurface are presented, including using non-periodic metasurfaces to raise aperture efficiency, introducing multi-mode resonance metasurfaces to expand bandwidth, and introducing capacitive loading metasurfaces for miniaturization. As for function manipulation, due to the high design freedom of metasurface, multi-polarization reconfigurability can be achieved by changing the surface impedance distribution. Moreover, it can be used as radiators and excited by traveling wave to achieve beam steering or combined with phase change materials to realize frequency reconfiguration. The last part is about the further applications of metasurface, including multi-folding reflectarray/transmitarray, wide-angle scanning phased array antenna, and filtering antenna. In conclusion, the researches of metasurface have overcome the shortcomings of conventional antennas and proposed some good solutions to realize innovative antennas.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 1","pages":"6-24"},"PeriodicalIF":3.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10685482","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107123","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IEEE ANTENNAS AND PROPAGATION SOCIETY IEEE 天线与传播学会

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-23 DOI: 10.1109/OJAP.2024.3459231

引用次数: 0

Guest Editorial: Antenna-Enabled Sensors and Systems, the New Frontier in Sustainable Wireless Systems 特邀社论：天线传感器和系统：可持续无线系统的新领域

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-23 DOI: 10.1109/OJAP.2024.3458268

Mahmoud Wagih;Gaetano Marrocco;Mohammad H. Zarifi;Jasmin Grosinger;Chaoyun Song;Qammer H. Abbasi

引用次数: 0

Frequency Diverse Array for Signal Geofencing in Wireless Communications: Does it Work?

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-23 DOI: 10.1109/OJAP.2024.3465652

Simone Del Prete;Marina Barbiroli;Franco Fuschini

{"title":"Frequency Diverse Array for Signal Geofencing in Wireless Communications: Does it Work?","authors":"Simone Del Prete;Marina Barbiroli;Franco Fuschini","doi":"10.1109/OJAP.2024.3465652","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3465652","url":null,"abstract":"Frequency Diverse Array is an advanced antenna technology for clustering received power spatial distribution in specific areas, which has shown significant potential in many applications, including radar or wireless power transfer. In wireless communications, signal geofencing might be beneficial in increasing communication secrecy or reduce interference issues, but system communications through frequency diverse arrays require careful consideration about several design parameters. In this paper, a detailed analysis of the sensitivity of the geofencing effectiveness to the main array parameters is carried out. The analysis covers many aspects of the design, including the selection of the geometrical layout and the number of elements of the array, the frequency increase policy and the frequency offset across the elements and their spacing. The study also discusses the trade-offs between different design choices and provides insights into the performance in terms of focus efficiency and size of the focus area. Results show that bidimensional layouts, e.g., circular or planar, often represent effective solutions, whereas the linear arrangement can be a viable option only in case the frequencies are spread across the elements in a random-like fashion. Frequencies are usually increased according to either a logarithmic or a linear policy. The linear solution in general yields lower performance, but also lower complexity. Frequency offset, number of elements and their spacing represent further project parameters. Finally, a preliminary assessment of the multipath effect on the focus task shows that the performance of frequency diverse arrays can be affected by complex propagation conditions and deserve further investigations.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 1","pages":"51-63"},"PeriodicalIF":3.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10685467","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107072","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Metallo-Dielectric Groove Gap Waveguide Slotted Array Antenna With Hybrid Glide-Symmetric Holes & “Mushroom”-Type Metasurfaces

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-23 DOI: 10.1109/OJAP.2024.3466472

Panagiotis Petroutsos;Stavros Koulouridis

{"title":"A Metallo-Dielectric Groove Gap Waveguide Slotted Array Antenna With Hybrid Glide-Symmetric Holes & “Mushroom”-Type Metasurfaces","authors":"Panagiotis Petroutsos;Stavros Koulouridis","doi":"10.1109/OJAP.2024.3466472","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3466472","url":null,"abstract":"We present a hybrid multilayer slot array antenna, targeting next-generation wireless communication systems, particularly in mmWave bands like the Ka-band. The hybrid structure utilizes a high-performance metal Groove Gap Waveguide (GGW) feeding network and facilitates the practical manufacturing of slotted antennas and dielectric substrate metasurfaces using printed circuit boards. The proposed antenna incorporates a hybrid glide symmetric holey metasurface into the GGW feeding. This integration addresses assembly challenges between metal and dielectric layers, avoiding delicate welding techniques. It prevents energy leakage between the two different materials, even when a small air gap is maintained between them. The antenna also involves a printed periodic surface comprising ‘Mushrooms’ type cells on a thin dielectric substrate. As an effect, this design reduces mutual coupling between parallel slotted array antennas and provides a more compact structure compared to alternative decoupling methods such as vertical corrugation slots, or horn types. The textured ‘Mushroom’ surface enhances the antenna directivity by 3.4 dB and reduces the level of sidelobes by up to 6.2 dB. Measurement results demonstrate an achieved impedance bandwidth (<inline-formula> <tex-math>$S_{11} lt -$ </tex-math></inline-formula>10 dB) of 8.15% within the frequency range of 37.88 GHz to 40.98 GHz. Additionally, the antenna achieves a gain of up to 16.55 dB over the frequency of interest.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 1","pages":"25-37"},"PeriodicalIF":3.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10689327","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dual-Polarized Wideband Filtering Antenna Array Based on Stacked-PCB Structure

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-23 DOI: 10.1109/OJAP.2024.3466234

Matti Kuosmanen;Sten E. Gunnarsson;Johan Malmström;Juha Ala-Laurinaho;Jari Holopainen;Ville Viikari

{"title":"Dual-Polarized Wideband Filtering Antenna Array Based on Stacked-PCB Structure","authors":"Matti Kuosmanen;Sten E. Gunnarsson;Johan Malmström;Juha Ala-Laurinaho;Jari Holopainen;Ville Viikari","doi":"10.1109/OJAP.2024.3466234","DOIUrl":"https://doi.org/10.1109/OJAP.2024.3466234","url":null,"abstract":"This paper investigates a thin low-pass filtering antenna array based on dual-polarized Vivaldi elements. The low-pass filtering in the antenna elements reduces the requirement for the front-end filtering between the antenna and the microwave electronics, resulting in improved overall out-of-band suppression, size reduction, and lower cost. The array employs a novel stacked-PCB structure, where simple two-sided PCBs are stacked on top of each other. The via-connected metal layers of all PCBs form a tapered slotline along the surface normal of the PCBs. The filtering effect is realized by corrugating the tapered slotlines, which provides effective, space-saving integration of the filters that fit into a half-wavelength lattice. According to unit-cell simulations, the proposed antenna array operates at 6–18.5 GHz, and the stopband extends from 21 GHz to 37 GHz. The antenna array provides a −10-dB active reflection coefficient (ARC) with beam-steering angles within ±60° in E- and D-planes, and −6 dB within ±55° in the H-plane. At stopband frequencies, the attenuation with respect to simulated total efficiency is at least 20 dB. The operation of the proposed antenna array is confirmed by measurements of an <inline-formula> <tex-math>$11times 12$ </tex-math></inline-formula> antenna array prototype, which show that the gain suppression level in the stopband is more than 30 dB up to 37 GHz, and more than 20 dB up to 40 GHz.","PeriodicalId":34267,"journal":{"name":"IEEE Open Journal of Antennas and Propagation","volume":"6 1","pages":"38-50"},"PeriodicalIF":3.5,"publicationDate":"2024-09-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10689344","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143107003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

IEEE Open Journal of Antennas and Propagation Instructions for authors IEEE 天线与传播开放期刊作者须知

IF 3.5

IEEE Open Journal of Antennas and Propagation Pub Date : 2024-09-23 DOI: 10.1109/OJAP.2024.3459235

引用次数: 0