Wei Fan;Tian Hong Loh;Lars Foged;Benoit Derat;Yi Huang;Pekka Kyösti
{"title":"Guest Editorial Measurement Technologies for Emerging 5G and Beyond Channel Characterization and Antenna Systems","authors":"Wei Fan;Tian Hong Loh;Lars Foged;Benoit Derat;Yi Huang;Pekka Kyösti","doi":"10.1109/TAP.2025.3548732","DOIUrl":"https://doi.org/10.1109/TAP.2025.3548732","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 4","pages":"1917-1921"},"PeriodicalIF":4.6,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10957720","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821667","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}
{"title":"IEEE Transactions on Antennas and Propagation Information for Authors","authors":"","doi":"10.1109/TAP.2025.3547190","DOIUrl":"https://doi.org/10.1109/TAP.2025.3547190","url":null,"abstract":"","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 4","pages":"C3-C3"},"PeriodicalIF":4.6,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10957718","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800860","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}
Abdulwahab Alghamdi;Abdul Basir;Amjad Iqbal;Roy B. V. B. Simorangkir;Ismail Ben Mabrouk
{"title":"A Low-Profile Implantable Antenna for Heart Implants","authors":"Abdulwahab Alghamdi;Abdul Basir;Amjad Iqbal;Roy B. V. B. Simorangkir;Ismail Ben Mabrouk","doi":"10.1109/TAP.2025.3555863","DOIUrl":"https://doi.org/10.1109/TAP.2025.3555863","url":null,"abstract":"The complex nature of the human body and the interaction between implantable antennas and electronic components can result in detuning issues. A wide bandwidth is critical for mitigating these issues and improving channel capacity. This communication presents a compact implantable antenna that provides ultrawide bandwidth for leadless cardiac pacemakers (LCPs). The proposed antenna has an ultracompact size of 8.33 mm<sup>3</sup>, with a 10-dB bandwidth of 4.33 GHz (fractional bandwidth of 152.7%), spanning from 0.67 to 5 GHz. It covers the Industrial, Scientific, and Medical (ISM) bands (0.915 and 2.45 GHz), the Wireless Medical Telemetry Service (WMTS) band (1.4 GHz), and the midfield band (1.6 GHz). The simulation results demonstrate gains of −31.3 dBi at 0.915 GHz, −25.8 dBi at 1.4 GHz, and −21.9 dBi at 2.45 GHz. This antenna exhibits peak specific absorption rate (SAR) values of 320.4 W/kg at 0.915 GHz, 332.8 W/kg at 1.4 GHz, and 464.1 W/kg at 2.45 GHz. To ensure the reliability of the wireless communication link, the link budget is analyzed to estimate the range between the transmitter and receiver at data rates of 10 and 25 Mb/s. To validate the results, the manufactured antenna is tested with minced pork, demonstrating a satisfactory agreement between the measured and simulated outcomes.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"3310-3315"},"PeriodicalIF":4.6,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143918750","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}
{"title":"TE–TM Balanced Wide-Angle Metacells for Low Scan-Loss Metalens Antenna Using Prior Knowledge-Guided Generative Deep Learning-Enabled Method","authors":"Yanhe Lyu;Theng Huat Gan;Zhi Ning Chen","doi":"10.1109/TAP.2025.3552837","DOIUrl":"https://doi.org/10.1109/TAP.2025.3552837","url":null,"abstract":"The miniaturized cage-like metacell is proposed for TE–TM balanced wide-angle transmission using the prior knowledge (PK)-guided generative deep learning (DL) method, enabling a low scan-loss metalens antenna. An initial metacell topology and pattern generation rules are proposed, guided by physical constraints and engineering experience, and efficiently construct a high-degree-of-freedom (DoF) dataset for training a conditional deep convolutional generative adversarial network (cDCGAN). With a trained generator, diverse DL-enabled miniaturized cage-like metacells achieve a transmittance higher than 0.75 with fluctuations below 0.15 and a phase shift range of 295° with variations less than 15° at 10 GHz under TM and TE polarized incident waves from 0° to 45°. To verify the generative designs, a metalens antenna prototype consisting of the proposed metacells shows a realized gain of 26.2 dBi with an aperture efficiency of 36.3% and measured scan losses lower than 2.6 and 2.4 dB as TE- and TM-polarized beams scanning from −40° to 40° at 10 GHz.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 5","pages":"2940-2949"},"PeriodicalIF":4.6,"publicationDate":"2025-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143929687","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}
{"title":"Mode Analysis of Dielectric Resonator Antenna Based on Multipole Moment Expansion Theory","authors":"Jian Ren;Wen Li;Yan-Ting Liu;Yingzeng Yin","doi":"10.1109/TAP.2025.3552238","DOIUrl":"https://doi.org/10.1109/TAP.2025.3552238","url":null,"abstract":"The mode analysis is of great significance for the dielectric resonator antenna (DRA). Different methods have been used to analyze DRA modes. Despite the progress, the accurate mode analysis of an arbitrary DRA remains a challenge. In this communication, the multipole moment expansion (MME) method is used to analyze DRAs with the help of COMSOL Multiphysics. According to the hybrid MME method, the scattered field of a radiator can be represented as the contributions of different multipole moments. It is well known that the DRA mode can be equivalent to an electric or magnetic multipole. Therefore, the peaks of the contributions of polar moments correspond to different DRA modes, giving resonant frequency of the modes. As compared with the existing methods, the hybrid MME method can accurately analyze the resonant frequency of the modes of an arbitrary DRA. For demonstration, several DRA designs are simulated with COMSOL Multiphysics and ANSYS HFSS. The results confirm the effectiveness of the hybrid MME method.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"4128-4133"},"PeriodicalIF":4.6,"publicationDate":"2025-03-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219795","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}
Yunying Man;Peng Yang;Lu Yin;Hao Yang;Yingwei Zhao;Zewei Wu;Youlei Pu;Zhijin Wen;Yong Luo
{"title":"An Efficient Multibeamforming Method Based on 1-bit Phase Modulation for Time-Modulated Arrays","authors":"Yunying Man;Peng Yang;Lu Yin;Hao Yang;Yingwei Zhao;Zewei Wu;Youlei Pu;Zhijin Wen;Yong Luo","doi":"10.1109/TAP.2025.3551614","DOIUrl":"https://doi.org/10.1109/TAP.2025.3551614","url":null,"abstract":"By using sideband signals of time-modulated arrays (TMAs), we can realize a variety of applications, including simultaneous multibeamforming and direction of arrival (DoA) estimation. However, the realization of multibeamforming with TMAs based on amplitude modulation (AM) waveform has some disadvantages. First, this method, which is based on AM waveform, results in a significant reduction in array efficiency as the number of antennas increases. Moreover, only one antenna works at a time, thus the instantaneous power is very small. In this article, a new waveform based on phase modulation (PM) is proposed to realize multibeamforming, which ensures that each antenna is always active. As a consequence, instantaneous power is improved and the theoretical value of feeding network efficiency can reach 100%, which is independent of the number of antennas. In addition, the modulated waveform proposed in this article can be optimized by genetic algorithm (GA), which further improves harmonic efficiency. As a result, this method can efficiently enhance array efficiency while reducing hardware complexity and expense. Both numerical simulation and experiment show that the proposed method is effective.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"3654-3665"},"PeriodicalIF":4.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144232116","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}
Bang Wei;Zheng Li;Zhe Xiong;Yi Zhao;Meie Chen;Junhong Wang
{"title":"A Dual-Polarized Fixed-Frequency Beam-Scanning Leaky Wave Antenna for 5 G Millimeter-Wave Applications","authors":"Bang Wei;Zheng Li;Zhe Xiong;Yi Zhao;Meie Chen;Junhong Wang","doi":"10.1109/TAP.2025.3550719","DOIUrl":"https://doi.org/10.1109/TAP.2025.3550719","url":null,"abstract":"In this article, a dual-polarized (DP) fixed-frequency beam-scanning leaky wave antenna (LWA) is presented. Operating from 24.5 to 27.5 GHz, the LWA consists of a vertically polarized (VP) patch array, a horizontally polarized (HP) printed dipole array, and a dual-channel gap waveguide (GW) that provides traveling-wave excitation. The VP patch array, located at the center of the antenna aperture, contains 80 slot-excited patches. The HP dipole array is divided into two subarrays distributed on both sides of the antenna aperture and is excited by slot-coupled microstrip lines. The VP and HP arrays are independent, enabling simultaneous control of both polarization beams. Due to the low profile of the printed dipole, the radiation aperture of the antenna can be fully utilized, providing the ability to expand in two dimensions. To achieve fixed-frequency beam scanning, each antenna unit has a 1-bit amplitude modulation capability, realized by electrically controlling the p-i-n diode. A dual-channel GW capable of transmitting both TE<sub>01</sub> and TE<sub>10</sub> modes is designed, and the stacked architecture makes it suitable for a compact DP antenna. A holographic method is employed to realize the beam scanning. Simulated and measured results verify that the proposed antenna can achieve fixed-frequency, wide-angle, and quasi-continuous beam scanning.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"3666-3679"},"PeriodicalIF":4.6,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144229471","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}
{"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}
Amit Kr. Pandey;Ravi Kumar Gangwar;Raghvendra Kumar Chaudhary
{"title":"A Compact Frog-Shaped Self-Diplexed MIMO Antenna With SD-HMSIW Technique for WLAN Applications","authors":"Amit Kr. Pandey;Ravi Kumar Gangwar;Raghvendra Kumar Chaudhary","doi":"10.1109/TAP.2025.3548684","DOIUrl":"https://doi.org/10.1109/TAP.2025.3548684","url":null,"abstract":"This communication presents a compact, low-profile, dual-band shielded half-mode substrate integrated waveguide (SD-HMSIW)-based self-diplexed multiple-input multiple-output (MIMO) antenna (SDMA) designed for wireless local area network (WLAN) applications. The MIMO configuration comprises two orthogonally positioned, identical self-diplexing antenna (SDA) elements, forming a slot configuration resembling the anatomy of a frog. Each SDA element features two uniquely shaped modified slots on the top conducting surface of the SD-HMSIW cavity. These SDAs are driven by separate 50-<inline-formula> <tex-math>$Omega $ </tex-math></inline-formula> microstrip feed lines, facilitating radiation at 5.2 and 5.8 GHz with good isolation between the ports. The proposed SDA design method offers exceptional versatility, enabling independent operation at two distinct frequency bands. The overall MIMO configuration of the SDA element enables a compact antenna size of <inline-formula> <tex-math>$0.40~lambda {_{text {g}}}^{2}$ </tex-math></inline-formula>, with isolation greater than 21 dB between ports and gains of 5.26 and 4.94 dBi at ports resonating at two identical frequencies. The outcomes of MIMO antenna features involving envelope correlation coefficient (ECC), effective diversity gain (EDG), and multiplexing efficiency (MUX) have been evaluated and found to be satisfactory for the proposed SD-HMSIW-based SDMA.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"4146-4151"},"PeriodicalIF":4.6,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219732","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}
{"title":"Characterizing Ultrawideband Scattering From Penetrable Objects Using a Stabilized and Well-Conditioned TDIE With Laguerre Polynomials","authors":"Rongchuan Bai;Ming-Da Zhu;Haoxuan Zhang;Zhengwei Du;Zhe Chen;Li Huang;Hao Xie;Jianxing Leng;Wen-Yan Yin","doi":"10.1109/TAP.2025.3547868","DOIUrl":"https://doi.org/10.1109/TAP.2025.3547868","url":null,"abstract":"A novel approach is proposed to solve ultrawideband scattering problem of dielectric objects, which employs the time-domain integral equation (TDIE) method. The frequency band spans from ultralow frequency (<inline-formula> <tex-math>$10^{-25}$ </tex-math></inline-formula> Hz) to microwave frequency. The application of the Calderón preconditioner ensures that the impedance matrix is well-conditioned. Furthermore, the Filon-type method is integrated into the Calderón preconditioner to guarantee the accuracy of the oscillatory integral. In addition, by incorporating a block-matrix constraint condition, we obtain stabilized and well-conditioned dielectric formulations based on marching-on-in-degree (MOD) method. Expanding on these techniques, we propose a universal static error current subtraction (SECS) method, characterized by its simplicity of implementation, to attain an accurate solution for ultrawideband scenarios. Notably, the accurate results can be obtained from ultralow to high frequencies through single temporal simulation. Numerical examples demonstrate that the proposed approach is able to achieve stable and accurate ultra broadband solutions.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"73 6","pages":"4116-4121"},"PeriodicalIF":4.6,"publicationDate":"2025-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144219614","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}