IEEE Transactions on Antennas and Propagation最新文献_第8页

Optimal Second-Order Sidelobes Suppression for Dual-Polarized Waveguide Slot Phased Array Antenna Using Array Coding 基于阵列编码的双极化波导缝隙相控阵天线二阶副瓣抑制

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-11 DOI: 10.1109/TAP.2025.3558400

Chenhui Dai;Fanchao Zeng;Shuo Wang;Fantong Kong;Qilei Zhou;Zhiya Zhang

引用次数: 0

Accurate Extraction of Graphene Scattering Properties via a Robust Formulation for Fundamental Modes 通过稳健的基本模式公式精确提取石墨烯散射特性

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-11 DOI: 10.1109/TAP.2025.3558397

Pablo H. Zapata Cano;Stamatios A. Amanatiadis;Zaharias D. Zaharis;Traianos V. Yioultsis;Pavlos I. Lazaridis;Nikolaos V. Kantartzis

{"title":"Accurate Extraction of Graphene Scattering Properties via a Robust Formulation for Fundamental Modes","authors":"Pablo H. Zapata Cano;Stamatios A. Amanatiadis;Zaharias D. Zaharis;Traianos V. Yioultsis;Pavlos I. Lazaridis;Nikolaos V. Kantartzis","doi":"10.1109/TAP.2025.3558397","DOIUrl":"https://doi.org/10.1109/TAP.2025.3558397","url":null,"abstract":"This article explores graphene’s quasinormal modes (QNMs) by developing a finite-element method (FEM) solver, which addresses an augmented eigenvalue problem where graphene is represented as an equivalent surface current. This representation correlates with the surface conductivity of the material through a Debye frequency dispersion model. Initially, the straightforward intraband term is considered, while the study delves into the interband contributions to graphene’s conductivity, described via a complex conjugate series of Debye terms. Also, it examines the magneto-optical properties of graphene, which can be tuned by an external magnetic field to produce nonreciprocal effects. Finally, the proposed formulation covers the normalization of graphene QNMs and the reconstruction of scattered fields, providing a complete analysis tool that handles graphene as a scattering surface. The featured methodology is successfully validated by comparing the evaluated absorption cross section (ACS) due to scattering from graphene sheets with the corresponding outcomes of a commercial full-wave solver. Graphene attributes are selected properly to model high-quality-factor resonances indicating the remarkable accuracy of the proposed scheme.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5751-5761"},"PeriodicalIF":5.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Broadband 1-bit Reconfigurable Intelligent Surface at Millimeter Waves: Overcoming P-I-N -Diode Degradation With Slotline Ring Topology 毫米波下宽带1位可重构智能表面：用槽线环拓扑克服P-I-N二极管退化

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-11 DOI: 10.1109/TAP.2025.3558424

Ángel Palomares-Caballero;Mario Pérez-Escribano;Carlos Molero;Pablo Padilla;María García-Vigueras;Raphaël Gillard

{"title":"Broadband 1-bit Reconfigurable Intelligent Surface at Millimeter Waves: Overcoming P-I-N -Diode Degradation With Slotline Ring Topology","authors":"Ángel Palomares-Caballero;Mario Pérez-Escribano;Carlos Molero;Pablo Padilla;María García-Vigueras;Raphaël Gillard","doi":"10.1109/TAP.2025.3558424","DOIUrl":"https://doi.org/10.1109/TAP.2025.3558424","url":null,"abstract":"This article explains the nonidealities that arise when using p-i-n diodes at millimeter-wave frequencies and the important limitations that they bring in classical configurations of 1-bit slotline reconfigurable unit cells. A robust solution is proposed where a single p-i-n diode is inserted inside a ring topology. The slotline unit cell is analyzed through a circuit-model approach. Its performance is compared with a unit cell based on a single slotline, which also includes a p-i-n diode, referred to as classical configuration. For experimental assessment, a circuit prototype is fabricated to verify the phase difference of both p-i-n-diode states in each unit cell configuration. The measured results reveal that the slotline unit cell with ring configuration provides a <inline-formula> <tex-math>$180^{circ }~pm ~20^{circ }$ </tex-math></inline-formula> reflection phase difference from 36.3 to 45 GHz (21.4% relative bandwidth). Finally, the proposed slotline unit cell with ring topology is measured in a complete array to assess its performance in periodic and quasi-periodic environments. The measurements confirm the 1-bit behavior for both normal and oblique incidences with losses less than 2 dB. Therefore, this enables the design of wideband 1-bit reconfigurable reflectarrays and reconfigurable intelligent surface (RIS) in this frequency range.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5433-5445"},"PeriodicalIF":5.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A 3-D Plane Wave Spectrum Filtering-Assisted Near-Field Measurement Using Scanning Optic-Induced Plasma Scattering Technology 基于扫描光诱导等离子体散射技术的三维平面波频谱滤波辅助近场测量

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-11 DOI: 10.1109/TAP.2025.3558435

Ning Leng;Liao Ma;Zhanjian Liang;Ming Jin;Ming Bai

{"title":"A 3-D Plane Wave Spectrum Filtering-Assisted Near-Field Measurement Using Scanning Optic-Induced Plasma Scattering Technology","authors":"Ning Leng;Liao Ma;Zhanjian Liang;Ming Jin;Ming Bai","doi":"10.1109/TAP.2025.3558435","DOIUrl":"https://doi.org/10.1109/TAP.2025.3558435","url":null,"abstract":"Near-field measurement is an effective approach for evaluating antenna performance. Multiple reflection interference between the probe and the antenna under test (AUT) is a common error source in near-field measurement. The recently introduced scanning optic-induced plasma scattering (SOPS) technology exhibits significant susceptibility to interference, which adversely impacts its measurement precision. The SOPS technique enables the efficient acquisition of near-field distribution data across a sequence of multiple planes. In this communication, we take advantage of this high efficiency and propose a 3-D plane wave spectrum filtering-assisted near-field measurement method. The measured near-field data at different distances were first decomposed through plane wave expansion theory. Then, based on different behaviors between the original wave and the reflected waves at various distances, multiple reflected wave components were filtered out in the spatial spectrum along the distance dimension to suppress the multiple reflection interference between the AUT and the silicon wafer. A typical Ka-band antenna was simulated and measured using the proposed method. The filtered near-field distribution and far-field pattern agree well with the simulation results. The 3-D plane wave spectrum filtering-assisted SOPS technology enables near-field measurements to be completed within a few minutes. The proposed method is particularly valuable for measuring high-frequency antennas with a large aperture, and it presents an effective solution to deal with multiple reflections associated with near-field measurement.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"6050-6055"},"PeriodicalIF":5.8,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10963985","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782154","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multistage Stacked Dual-Mode Resonator Topology for Dual-CP Filtennas: Design, Theoretical Analysis, and Implementation 用于双cp滤波器的多级堆叠双模谐振器拓扑：设计、理论分析和实现

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-10 DOI: 10.1109/TAP.2025.3557713

Weiheng Chen;Jun Xu;Zhiqiang Yu;Jianyi Zhou;Haitao Zhao;Wei Hong

{"title":"Multistage Stacked Dual-Mode Resonator Topology for Dual-CP Filtennas: Design, Theoretical Analysis, and Implementation","authors":"Weiheng Chen;Jun Xu;Zhiqiang Yu;Jianyi Zhou;Haitao Zhao;Wei Hong","doi":"10.1109/TAP.2025.3557713","DOIUrl":"https://doi.org/10.1109/TAP.2025.3557713","url":null,"abstract":"In this article, a design concept for dual-circularly polarized (dual-CP) filtennas called multistage stacked dual-mode resonator topology (MSDRT) and its systematic design method are presented. First, a comprehensive analysis of the MSDRT is performed through four-port coupling matrix modeling, theoretical derivation, and numerical validation. This analysis demonstrates that dual-CP radiation and filtering properties can be achieved and improved with the coupled dual-mode resonators in the MSDRT, eliminating the need for additional feeding networks or polarizers, and thereby realizing a high-integrated structure. Moreover, the analysis also reveals that MSDRT provides multiple transmission paths between the filtenna ports through dual-mode resonators and nonresonating modes (NRMs). The cancellation of these paths can generate transmission zeros controllably, thereby achieving high port isolation. Then, two MSDRT dual-CP filtennas are implemented based on substrate integrated waveguide (SIW) cavities and patches. The resonator field distributions are investigated and manipulated to create the desired couplings. Both filtennas exhibit high port isolation above 20 dB. Radiation nulls can be created in both lower and upper bands by introducing cross-couplings. To the best of our knowledge, this is the first time that MSDRT filtennas accompanied by a comprehensive theoretical analysis for dual-CP filtenna design are proposed.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5117-5131"},"PeriodicalIF":5.8,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782131","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis Method of N-Band Filtering Antenna With Fully Coupled Theoretical Model Based on Vertically Folded Cascade Resonators 基于垂直折叠级联谐振腔的全耦合理论模型n波段滤波天线综合方法

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-10 DOI: 10.1109/TAP.2025.3557686

Yu Zhan;Yi Wu;Kaixue Ma;Yeo Kiat Seng;Ruipeng Liu;Feng Feng

{"title":"Synthesis Method of N-Band Filtering Antenna With Fully Coupled Theoretical Model Based on Vertically Folded Cascade Resonators","authors":"Yu Zhan;Yi Wu;Kaixue Ma;Yeo Kiat Seng;Ruipeng Liu;Feng Feng","doi":"10.1109/TAP.2025.3557686","DOIUrl":"https://doi.org/10.1109/TAP.2025.3557686","url":null,"abstract":"This article proposes a novel structure based on vertically folded cascade resonators for the design of a multiband filtering antenna with arbitrary order and arbitrary number of operating bands. A generalized fully coupled theoretical model and the associated systematic synthesis method are established, enabling quantitative analysis and deterministic design of the proposed antenna structure to satisfy the given specifications. By constructing and solving the corresponding multiband low-pass prototype, the theoretical coupling matrix can be derived, which, in turn, guides the physical parameter extraction process of the circuit prototype, greatly simplifying the design and optimization of multiband filtering antennas. The independently tunable cascade modes excited by the cascade resonators allow for precise control over the multiband filtering response, while the vertically folded integrated structure contributes to circuit miniaturization. With the use of substrate-integrated waveguide (SIW) technology, two examples, including second-order dual-band and third-order triband filtering antennas, are designed and fabricated. Good consistency between the simulated and measured results verifies the proposed structure, the theoretical model, and the synthesis method.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5104-5116"},"PeriodicalIF":5.8,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine Learning-Assisted Synthesis of Large Nonuniform Antenna Arrays Including Mutual Coupling With an Equivalent Small Array Model 基于等效小阵列模型的大型非均匀天线阵的机器学习辅助综合

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-10 DOI: 10.1109/TAP.2025.3555882

Haotian Li;Yikai Chen;Qiumei Li;Shiwen Yang

{"title":"Machine Learning-Assisted Synthesis of Large Nonuniform Antenna Arrays Including Mutual Coupling With an Equivalent Small Array Model","authors":"Haotian Li;Yikai Chen;Qiumei Li;Shiwen Yang","doi":"10.1109/TAP.2025.3555882","DOIUrl":"https://doi.org/10.1109/TAP.2025.3555882","url":null,"abstract":"Mutual coupling in nonuniform antenna arrays is much more complicated and difficult to describe than their uniform counterparts. Therefore, traditional nonuniform antenna array synthesis methods are usually based on isolated element patterns and do not consider mutual coupling effects. It will inevitably cause various errors in radiation performance, especially for nonuniform antenna arrays with close element spacings. In this article, a machine learning (ML)-assisted method is proposed for the synthesis of large nonuniform antenna arrays in the presence of mutual coupling. An equivalent small array (ESA) model is developed to predict the element patterns considering mutual coupling under arbitrary array layouts. Compared with traditional ML-assisted methods, the proposed method establishes an efficient and accurate offline model to significantly reduce the full-wave simulation time for training dataset development. The remaining optimization procedure does not require full-wave simulation. Furthermore, the ESA model could be directly applied to antenna arrays with various antenna element numbers and spacings. The effectiveness of the proposed method is verified through linear and planar antenna arrays. Numerical and experimental results demonstrated that the mutual coupling is fully considered in the synthesis method and the synthesis results highly agree with the full-wave simulation and measurement results.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5420-5432"},"PeriodicalIF":5.8,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782065","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Single-Layer Dual-Wideband Dual-Circularly Polarized Quad-Beam Reflectarray Antenna Based on Hybrid Phase Compensation for Millimeter-Wave/5G Communication Systems 基于混合相位补偿的单层双宽带双圆极化四波束反射天线用于毫米波/5G通信系统

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-09 DOI: 10.1109/TAP.2025.3557707

Nooshin Moradi;Farhad Azadi Namin;Ayaz Ghorbani

{"title":"A Single-Layer Dual-Wideband Dual-Circularly Polarized Quad-Beam Reflectarray Antenna Based on Hybrid Phase Compensation for Millimeter-Wave/5G Communication Systems","authors":"Nooshin Moradi;Farhad Azadi Namin;Ayaz Ghorbani","doi":"10.1109/TAP.2025.3557707","DOIUrl":"https://doi.org/10.1109/TAP.2025.3557707","url":null,"abstract":"A single-layer dual-wideband (dual-WB) dual-circularly polarized (dual-CP) reflectarray (RA) for 5G applications operating in the Ka-band is designed, fabricated, and experimentally tested in this work. The unit cell of the RA is composed of the adjacent crossed bow tie and split ring with a short dipole embedded in a reflecting aperture, allowing dual-band operation at 26 and 39 GHz, respectively. Utilizing the hybrid phase compensation approach allows the RA cells to separately manage the reflection phase delay of orthogonal CP beams at both designated bands. This results in four pencil beams that can be generated in four arbitrary directions. The proposed RA is fabricated and tested with a thin substrate thickness of <inline-formula> <tex-math>$0.13{lambda }_{low}$ </tex-math></inline-formula> (<inline-formula> <tex-math>$0.2boldsymbol {lambda }_{up}$ </tex-math></inline-formula>), where <inline-formula> <tex-math>$boldsymbol {lambda }_{low}$ </tex-math></inline-formula> (<inline-formula> <tex-math>$boldsymbol {lambda }_{up}$ </tex-math></inline-formula>) is the free-space wavelength at 26 GHz (39 GHz), producing asymmetrically scattered dual-WB dual-CP beams in both operating bands. The measured peak gains are 31.5/31.4 dBic for right-hand CP (RHCP)/left-hand CP (LHCP) with aperture efficiencies of 37.4%/36.3% at the lower band and 34.1/34.3 dBic with aperture efficiencies of 30.5%/31.6% at the upper band. Furthermore, for RHCP/LHCP incident waves, the measured 1-dB gain bandwidths are 14.8%/14.2% and 12.3%/13.2% at the lower and upper bands, respectively. The proposed RA is attractive for 5G applications due to its compactness and versatility in achieving polarization diversity and multibeam radiation patterns at both frequency bands.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5446-5454"},"PeriodicalIF":5.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782159","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

D-Band Demonstration of Quasi-Optical and Analog Beam Reconfiguration Using Phased Array and Lens for 6G Applications 6G应用中使用相控阵和透镜的准光学和模拟光束重构的d波段演示

IF 5.8 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-09 DOI: 10.1109/TAP.2025.3557716

Marta Arias Campo;Simona Bruni;Andreas Lauer;Michael Wleklinski;Uwe Gollor;Wolfgang Wischmann;Aline Friedrich;Christos Oikonomopoulos;Oliver Litschke;Christoph Herold;Andrea Malignaggi;Nicolò Moroni;Karthik Krishnegowda;Corrado Carta;Wilhelm Keusgen

{"title":"D-Band Demonstration of Quasi-Optical and Analog Beam Reconfiguration Using Phased Array and Lens for 6G Applications","authors":"Marta Arias Campo;Simona Bruni;Andreas Lauer;Michael Wleklinski;Uwe Gollor;Wolfgang Wischmann;Aline Friedrich;Christos Oikonomopoulos;Oliver Litschke;Christoph Herold;Andrea Malignaggi;Nicolò Moroni;Karthik Krishnegowda;Corrado Carta;Wilhelm Keusgen","doi":"10.1109/TAP.2025.3557716","DOIUrl":"https://doi.org/10.1109/TAP.2025.3557716","url":null,"abstract":"In this article, a hybrid quasi-optic and analog beamforming approach is presented, involving an elliptical lens with an active focal plane array at D-band (110–170 GHz). Beamwidth reconfigurability and steering in two planes with enhanced performance are demonstrated. The quasi-optic technique minimizes the beam squint over frequency. Analog phase shift in the focal plane array is used to increase the lens steering range. A prototype including two four-channel D-band transceivers with on-chip antennas has been built as demonstrator. The resulting active focal plane array consists of <inline-formula> <tex-math>$2times 4$ </tex-math></inline-formula> antenna elements, which are tuned in amplitude and phase to reconfigure the beam. The advantages of using a resonant leaky wave (LW) cavity combined with a coherent array of feeds are discussed and quantified. Radiation pattern measurements performed with the calibrated active antenna validate the beam reconfiguration concept in two planes at 140 GHz. A steering loss reduction ranging from 2 to 4.5 dB is achieved in the whole D-band at 22° scan angle by applying beam steering in the feed radiation.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 8","pages":"5064-5074"},"PeriodicalIF":5.8,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144782099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"计算机科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microwave, mm and THz Imaging and Sensing Systems and Technologies for Medical Applications 微波，毫米和太赫兹成像和传感系统和技术的医疗应用

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-04-08 DOI: 10.1109/TAP.2025.3547194

引用次数: 0