IEEE Transactions on Antennas and Propagation最新文献_第7页

A Wideband Millimeter-Wave Metal-Only Dual-Mode OAM Transmit-Reflect-Array Antenna 宽带毫米波纯金属双模OAM发射-反射阵列天线

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-18 DOI: 10.1109/TAP.2025.3550795

Shuai Gao;Ji Liu;Hang Wong

{"title":"A Wideband Millimeter-Wave Metal-Only Dual-Mode OAM Transmit-Reflect-Array Antenna","authors":"Shuai Gao;Ji Liu;Hang Wong","doi":"10.1109/TAP.2025.3550795","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550795","url":null,"abstract":"In this communication, a wideband metal-only dual-mode orbital angular momentum (OAM) transmit-reflect-array (TRA) antenna is proposed. The transmission and reflection modes of the antenna are dependent on the polarization of the incident wave, and a cascaded metal waveguide structure consisting of a square waveguide and a dual-cavity waveguide is designed as the element. The element not only allows for a wideband polarization selective performance of transmitting x-polarized incident wave and reflecting y-polarized incident wave but also provides independent phase control capability for the transmitted and reflected waves. To validate the proposed methodology, four TRA antennas generating OAM beams with different modes are designed and discussed first, and a prototype with transmitted <inline-formula> <tex-math>${l} = +1$ </tex-math></inline-formula> OAM mode beams for x-polarized incidence and reflected <inline-formula> <tex-math>${l} = 0$ </tex-math></inline-formula> OAM mode beams for y-polarized incidence is fabricated and measured. The measured results agree well with the simulated ones, demonstrating that <inline-formula> <tex-math>${l} = +1$ </tex-math></inline-formula> OAM mode beams can be generated from 23 to 34 GHz with a peak gain of 22 dBi, and <inline-formula> <tex-math>${l} = 0$ </tex-math></inline-formula> OAM mode beams can be generated from 24.5 to 34 GHz with a peak gain of 28.6 dBi. The calculated mode purities for both transmission and reflection modes are more than 0.93.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 7","pages":"4963-4968"},"PeriodicalIF":4.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604107","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

An Ultracompact Shared-Radiator Electrically Small Huygens Dual-Circularly Polarized Antenna 一种超紧凑型共享辐射器电小型惠更斯双圆极化天线

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-18 DOI: 10.1109/TAP.2025.3550449

Huacheng Li;Wei Lin

{"title":"An Ultracompact Shared-Radiator Electrically Small Huygens Dual-Circularly Polarized Antenna","authors":"Huacheng Li;Wei Lin","doi":"10.1109/TAP.2025.3550449","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550449","url":null,"abstract":"A novel electrically small shared-radiator Huygens dual-circularly polarized (HDCP) antenna is developed that features an ultracompact size, i.e., <inline-formula> <tex-math>$pi $ </tex-math></inline-formula> (<inline-formula> <tex-math>$0.12lambda _{text {c}}$ </tex-math></inline-formula>)<inline-formula> <tex-math>${}^{2} times 0.06lambda _{text {c}} = 0.0027lambda _{text {c}}^{3}$ </tex-math></inline-formula> (<inline-formula> <tex-math>$ka =0.78$ </tex-math></inline-formula>) at 915 MHz. A shared radiator is formed by a pair of orthogonally placed Huygens linearly polarized (HLP) antennas. HDCP beams, i.e., left-hand CP (LHCP) and right-hand CP (RHCP) Huygens beams, can be simultaneously excited by an “8”-shaped feed line as the driven element. To compensate for the inductive impedance, an innovative and compact LC matching network is developed to match both ports to standard 50-<inline-formula> <tex-math>$Omega $ </tex-math></inline-formula> transmission lines. The measured results of the prototype agree reasonably with the simulated ones. The results showcase good isolation lower than −16 dB between the two input ports and a wide measured (simulated) 3-dB axial ratio (AR) beamwidth of 120° (144°). Additionally, the measured peak realized gain values for LHCP and RHCP beams are consistent, e.g., 2.8 and 2.6 dBic, respectively. As an ultracompact dual-CP (DCP) antenna, it is an ideal candidate for wireless applications that require DCP performance along with compact system size, e.g., battery-free Internet of Things (IoT) ecosystems with simultaneous wireless power and data transmission.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 7","pages":"4915-4920"},"PeriodicalIF":4.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604102","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

Design of Arbitrarily-Extensible Multiband Periodical Leaky Wave Antenna With Multiple and Large-Range Frequency Scanning 任意可扩展多波段大范围扫描周期漏波天线设计

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-18 DOI: 10.1109/TAP.2025.3550706

Xiao-Yuan Sun;Bian Wu;Hong-Hao Zhang;Hao-Ran Zu

{"title":"Design of Arbitrarily-Extensible Multiband Periodical Leaky Wave Antenna With Multiple and Large-Range Frequency Scanning","authors":"Xiao-Yuan Sun;Bian Wu;Hong-Hao Zhang;Hao-Ran Zu","doi":"10.1109/TAP.2025.3550706","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550706","url":null,"abstract":"In this communication, a design methodology for arbitrarily-extensible multiband periodic leaky wave antennas (LWAs) with multiple frequency scanning in wide ranges is proposed. By implementing suitable periodic modulation, some specific slow wave structures can transmit slow waves at lower frequencies and radiate fast waves at higher frequencies. The technique of effective control over the slow and fast wave regions is developed, enabling the design of periodic LWAs that can excite fast waves in distinct frequency bands. By integrating these LWAs, a novel antenna design with multiple frequency-scanning bands is achieved. To validate the proposed approach, a dual-band periodic LWA based on a glide-symmetric double-layer Z-shaped spoof surface plasmon polaritons (SSPPs) structure is designed, fabricated, and measured. The measured results show good agreement with the simulated ones, demonstrating large frequency-scanning ranges, good impedance matching, and stable gain performance across both bands. Building on the dual-band design, a tri-band antenna (TBA) is further developed and simulated using the same methodology, and it has the potential to be extended to an arbitrary multiband periodic LWA. Besides, another design example, based on a different slow wave structure, is also provided to demonstrate the general applicability of this approach. Additionally, the proposed methodology also exhibits the property of independent control of each band.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 7","pages":"4945-4950"},"PeriodicalIF":4.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144604108","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

Communication Dispersion Analysis of Wide-Scanning Reflector-Based Leaky Wave Holograms by Adiabatic Floquet-Wave Expansion Method 基于绝热絮团-波展开法的宽扫描反射面漏波全息通信色散分析

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-18 DOI: 10.1109/TAP.2025.3550699

Mohammadreza Ashrafian;Homayoon Oraizi;Amrollah Amini

引用次数: 0

Low-Profile Aperiodic Metasurfaces for High-Efficiency Achromatic Anomalous Reflection Over a Wide Bandwidth 宽波段高效消色差异常反射的低轮廓非周期超表面

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-18 DOI: 10.1109/TAP.2025.3550713

Vasileios G. Ataloglou;George V. Eleftheriades

{"title":"Low-Profile Aperiodic Metasurfaces for High-Efficiency Achromatic Anomalous Reflection Over a Wide Bandwidth","authors":"Vasileios G. Ataloglou;George V. Eleftheriades","doi":"10.1109/TAP.2025.3550713","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550713","url":null,"abstract":"Metasurface (MTS) anomalous reflectors can enhance future wireless communication systems due to their ability to redirect electromagnetic waves and establish MTS-assisted communication links. However, MTS reflectors typically suffer from chromatic aberrations with the reflected angle shifting as the frequency varies. Herein, we design achromatic MTSs for anomalous reflection by using an integral-equation framework that fully accounts for the frequency dispersion of the individual scatterers (unit cells). Rather than engineering the dispersion of each MTS cell locally, we harness the emerging near-field interactions (evanescent waves) between the scatterers to realize anomalous reflection at a fixed angle over a wide frequency range. Three anomalous reflectors are designed and experimentally verified at 10 GHz, demonstrating high-performance metrics compared to traditional achromatic reflectors while employing simple, low-profile unit cells. The presented results pave an effective way to realize achromatic wave functionalities, such as anomalous reflection, refraction, or lensing, over a wide bandwidth with low-profile and highly efficient MTSs.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 7","pages":"4703-4715"},"PeriodicalIF":4.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597962","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

Improving Obstacles’ Low Observability Using Multistatic RCS: Case of OHW Detection in OCAS for Flying Vehicles 利用多静态RCS改进障碍物低可观测性：飞行器OCAS中OHW检测实例

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-18 DOI: 10.1109/TAP.2025.3548129

Vincent-De-Paul Onana;George Nehmetallah

{"title":"Improving Obstacles’ Low Observability Using Multistatic RCS: Case of OHW Detection in OCAS for Flying Vehicles","authors":"Vincent-De-Paul Onana;George Nehmetallah","doi":"10.1109/TAP.2025.3548129","DOIUrl":"https://doi.org/10.1109/TAP.2025.3548129","url":null,"abstract":"Improving obstacles’ low observability is critical in radar system performance. This study concluded that, when applied to overhead wire (OHW) detection in obstacle collision avoidance system (OCAS) for flying vehicles (FVs), multistatic radar cross section (RCS) from a multi-input multi-output (MIMO) radar system seems to be a way to achieve that goal. Monostatic and multistatic RCSs are derived, highlighting the advantages of multistatic RCS. A complex envelope of signals received at individual antenna active elements as a function of aspect angle is determined from a multistatic RCS scenario. The stretch processing for complex range profiles from signals received by a radar after illuminating a target is examined. The 2-D range aspect angle intensity (RAAI) maps based on stretch processing using monostatic and multistatic RCS of perfect electric conductor (PEC) OHW and circular cylinder (CC) cable obstacles are generated. Multistatic RCS improvements relative to the normal incidence are in the order of 1.5, 6, and 7 dB for the PEC CC cable physical optics (P.O.) theoretical model, the Feko PEC twisted wire, and the Feko PEC CC cable, respectively. Multistatic RCS exhibits superior signal-to-noise ratio (SNR) detection differential over all aspect angles, in the order greater than 18 dB for simulation cases, and in the order of 15 dB for experimental cases analyzed in this study; hence, the multistatic RCS is more suitable for low observable obstacles’ detection, e.g., the detection of OHW obstacles for FVs’ OCAS. Detection behavior from both our experimental measurement collections using a TIDEP-01012 radar and simulation results agree.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 7","pages":"4716-4731"},"PeriodicalIF":4.6,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144597805","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

Millimeter-Wave Radar-in-Display for Target Characterization and Micro-Doppler Sensing 毫米波显示雷达用于目标表征和微多普勒传感

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-17 DOI: 10.1109/TAP.2025.3550361

Jin Myeong Heo;Kiju Lee;Hae Soo Eun;Phuong Linh Hoang;Gangil Byun

{"title":"Millimeter-Wave Radar-in-Display for Target Characterization and Micro-Doppler Sensing","authors":"Jin Myeong Heo;Kiju Lee;Hae Soo Eun;Phuong Linh Hoang;Gangil Byun","doi":"10.1109/TAP.2025.3550361","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550361","url":null,"abstract":"This article presents a novel millimeter-wave (mmWave) frequency-modulated continuous-wave (FMCW) radar-in-display (RiD) concept for target characterization and micro-Doppler sensing. The radar system comprises one transmitter and three receivers, integrated along the nonoptical dead space (DS) (<inline-formula> <tex-math>$300~mu $ </tex-math></inline-formula> m) at the edges of a display panel. For 2-D scanning, one receiving (RX) antenna is positioned on the vertical edge, while the other two, along with the transmitter, are placed on the horizontal edge. A notched monopole antenna is mounted on the vertical edge, and capacitively coupled slot dipole antennas are used for the horizontal edge. The slot dipoles are designed to align polarization with the monopole antenna mounted at the perpendicular DS based on feed asymmetry. The antennas are integrated into the display panel and connected to a radio frequency integrated circuit to realize the RiD prototype. The prototype is validated through various hand gesture experiments, with spectrograms showing range, micro-Doppler shift, azimuth, and elevation angles after postprocessing. A novel calibration process is also presented in the postprocessing to correct phase errors caused by the unconventional array configuration, near-field (NF) effects, and radar components. The results demonstrate that the RiD system captures distinct gesture signatures with resolutions of 3 cm and 0.19 m/s.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 7","pages":"4879-4890"},"PeriodicalIF":4.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144606219","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

Arbitrary and Rigorous Aperture Illumination Synthesis in Huygens’ Metasurface-Based Leaky Wave Antennas 惠更斯超表面漏波天线的任意和严格孔径照明合成

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-17 DOI: 10.1109/TAP.2025.3550345

Pablo Mateos-Ruiz;Vinay Kumar Killamsetty;Ariel Epstein;Elena Abdo-Sánchez

{"title":"Arbitrary and Rigorous Aperture Illumination Synthesis in Huygens’ Metasurface-Based Leaky Wave Antennas","authors":"Pablo Mateos-Ruiz;Vinay Kumar Killamsetty;Ariel Epstein;Elena Abdo-Sánchez","doi":"10.1109/TAP.2025.3550345","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550345","url":null,"abstract":"Omega-type bianisotropic Huygens’ metasurfaces (HMSs) offer a novel approach for controlling the aperture field distribution of leaky wave antennas (LWAs). This article presents a methodology utilizing a parallel-plate waveguide with an MS as its top plate. Previous limitations on constant leakage factor are addressed using a slowly varying amplitude approximation (SVAA) in order to satisfy Maxwell’s wave equation, enabling the design of the radiation pattern. A semi-analytical algorithm is employed to obtain the required multilayer unit-cell geometries. Here, the interlayer coupling is taken into account, enabling an efficient synthesis of these antennas. Several designs presenting different pointing angles and aperture field distributions are carried out, showing very good agreement between theory and realistic simulations without further full-wave optimization. Finally, the design process is experimentally validated through several prototypes, whose measurements are shown and discussed. These results, demonstrating straightforward semi-analytical synthesis of versatile aperture profiles, would significantly broaden the applicability of such antennas in next-generation wireless systems.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 7","pages":"4208-4223"},"PeriodicalIF":4.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10930547","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144598013","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

Broadband Dual-Polarized Filtering Antenna for Base Station Systems 用于基站系统的宽带双极化滤波天线

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-17 DOI: 10.1109/TAP.2025.3550319

Xuekang Liu;Benito Sanz-Izquierdo;Lei Wang;Lu Zhang;Xue-Xia Yang;Steven Gao

引用次数: 0

A Simultaneous Time-Domain Measurement Method for Electric and Magnetic Fields Within the Test Chamber of Radiated Immunity 辐射抗扰度试验室内电磁场时域同步测量方法

IF 4.6 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2025-03-17 DOI: 10.1109/TAP.2025.3550375

Weiheng Shao;Caixu Yu;Yinghui Chen;Liuxing He;Lin Wen;Cui Meng

{"title":"A Simultaneous Time-Domain Measurement Method for Electric and Magnetic Fields Within the Test Chamber of Radiated Immunity","authors":"Weiheng Shao;Caixu Yu;Yinghui Chen;Liuxing He;Lin Wen;Cui Meng","doi":"10.1109/TAP.2025.3550375","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550375","url":null,"abstract":"This article presents a novel time-domain method for simultaneously characterizing electric and magnetic fields of test chambers in integrated circuit radiation immunity tests. The proposed approach is based on a symmetric vertical crossed-loop antenna (SCLA) and involves both a frequency-domain calibration process and a time-domain reconstruction process. Unlike the traditional single electric or magnetic field antenna characterization methods in IEC 62132-8, this method can simultaneously induce all three fields required during the radiation immunity test, namely, <inline-formula> <tex-math>$H_{mathrm { x}}$ </tex-math></inline-formula>, <inline-formula> <tex-math>$H_{mathrm { y}}$ </tex-math></inline-formula>, and <inline-formula> <tex-math>$E_{mathrm { z}}$ </tex-math></inline-formula>. The frequency-domain calibration process decouples the original induced E-field and H-field signals from the aliased measurement port voltage signals. The time-domain reconstruction process rebuilds the time-domain waveforms of <inline-formula> <tex-math>$H_{mathrm { x}}$ </tex-math></inline-formula>, <inline-formula> <tex-math>$H_{mathrm { y}}$ </tex-math></inline-formula>, and <inline-formula> <tex-math>$E_{mathrm { z}}$ </tex-math></inline-formula> from the original induced E-field and H-field signals. The calibration effectiveness, accuracy, robustness, and frequency range of the proposed method are analyzed and discussed. Finally, three typical electromagnetic field waveforms, including a sinusoidal signal, a pulse-modulated sinusoidal signal, and a double-exponential strong pulse signal, are used to demonstrate the effectiveness of the proposed method.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"3068-3078"},"PeriodicalIF":4.6,"publicationDate":"2025-03-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143925118","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