IEEE Antennas and Wireless Propagation Letters最新文献

Passive-Active Hybrid Absorbing-Amplifying Electromagnetic Window for Backward Ultrawideband Absorption and Forward In-Band Gain 被动-主动混合吸收-放大电磁窗的后向超宽带吸收和带内正向增益

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-07-30 DOI: 10.1109/LAWP.2026.3718922

Jie Tian;Jiangcheng Ge;Jiaqi Liu;Yichun Cui;Tao Hong;Wen Jiang

{"title":"Passive-Active Hybrid Absorbing-Amplifying Electromagnetic Window for Backward Ultrawideband Absorption and Forward In-Band Gain","authors":"Jie Tian;Jiangcheng Ge;Jiaqi Liu;Yichun Cui;Tao Hong;Wen Jiang","doi":"10.1109/LAWP.2026.3718922","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3718922","url":null,"abstract":"The contradiction between low scattering and high gain is becoming increasingly prominent in stealth antenna design. In this letter, a novel passive-active hybrid absorbing-amplifying electromagnetic window (AAEW) for forward gain and backward ultrawideband absorption is proposed. The frequency responses of an amplifier-loaded frequency-selective surface are matched with those of a resistive layer (RL). Consequently, the out-of-band Salisbury absorption and the in-band amplifier circuit load-matching absorption are combined to achieve continuous backward ultrawideband absorption. Furthermore, the amplifier circuit provides gain for forward incident waves, enhancing the aperture detection range. To verify the actual performance of the AAEW structure, a prototype was designed and fabricated. Test results show that under backward wave incidence, the 90% absorption band covers 4.2 GHz to 14.35 GHz (109.43%). Under forward incidence, the prototype provides gain from 8.18 GHz to 12 GHz, with a maximum gain of 10.66 dB. This work provides an effective solution for achieving radiation enhancement and ultrawideband stealth on modern stealth platforms.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"3888-3892"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124511","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Metasurface-Loaded Wideband High-Gain Filtering Antenna Array for CubeSat Application 一种用于立方体卫星的超表面负载宽带高增益滤波天线阵列

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-04 DOI: 10.1109/LAWP.2026.3720316

Naveed Ullah;Zhou He;Yejun He

{"title":"A Metasurface-Loaded Wideband High-Gain Filtering Antenna Array for CubeSat Application","authors":"Naveed Ullah;Zhou He;Yejun He","doi":"10.1109/LAWP.2026.3720316","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3720316","url":null,"abstract":"This letter presents a Ka-band high-gain antenna array loaded with a three-layer metasurface (MS) superstrate filter for radiation-domain filtering and in-band gain enhancement. The reference radiator source is a single-port 8 × 8 patch array designed at the 29.2 GHz center frequency. A new shape three-layer bandpass MS filter with a good roll-off factor is positioned above the array with an optimized air gap. Unlike conventional filtering antennas that mainly exhibit selectivity in the input reflection coefficient, the proposed structure shows its dominant filtering effect in the realized-gain and efficiency responses, while maintaining acceptable impedance matching. The operating mechanism uses the MS’s bandpass transmission response and the induced E-field on the MS superstrate by the incident wave of the reference array. This configuration simultaneously enhances in-band realized gain through constructive interference, while suppressing out-of-band radiation via the MS’s frequency-selective rejection. Simulated and measured results confirm that the proposed MS-loaded filtering array preserves good in-band matching from 27.5 GHz to 31 GHz, covering the Ka-band uplink, and improves the boresight gain by approximately 3.1 dBic at 29.2 GHz, while attenuating the undesired lower band gain by 21.1 dBic and the upper band by 20.4 dBic. These metrics make it suitable for Ka-band CubeSat communication systems.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"3933-3937"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124541","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Four-Leaf-Clover Slot Planar Antenna Based on All-Metal Back Cavity Structure 基于全金属后腔结构的四叶三叶草槽平面天线

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-12 DOI: 10.1109/LAWP.2026.3723276

Yongkang Shi;Hao Liu;Yongjun Xie;Xiaonan Wu;Shijing Wei;Mingxia Meng;Yuedong Liu

{"title":"Four-Leaf-Clover Slot Planar Antenna Based on All-Metal Back Cavity Structure","authors":"Yongkang Shi;Hao Liu;Yongjun Xie;Xiaonan Wu;Shijing Wei;Mingxia Meng;Yuedong Liu","doi":"10.1109/LAWP.2026.3723276","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3723276","url":null,"abstract":"Low-profile planar antennas are widely deployed on various radar platforms. This letter presents a Ka-band fully metallic planar slot antenna integrated with a sum–difference power divider network for synthetic aperture radar (SAR). Each four-unit radiating element consists of four four-leaf-clover radiating cavities, a cross-slot coupling cavity, and a longitudinal feed waveguide, which features high gain, high efficiency, and simple configuration. The element has an electrical size of 2.36λ0 × 2.36λ0, delivering a gain over 18.3 dBi and aperture utilization efficiency above 97%. Utilizing large-aperture high-gain elements reduces the total array element number, simplifies the feed topology, and lowers design complexity. The proposed design addresses the narrowband limitation of waveguide slot arrays and high-loss drawback of microstrip planar arrays. The fabricated 4 × 8 array realizes a measured realized gain higher than 32.5 dBi, aperture utilization efficiency over 88%, fractional bandwidth wider than 8.6%, and first sidelobe level below −18 dB. This antenna provides a promising design scheme for miniaturized SAR planar antennas.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"4043-4047"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Wide-Angle Scanning Linear Array With Low-Profile Ungrounded Highly Directive Element 低轮廓非接地高定向元件的广角扫描线性阵列

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-07 DOI: 10.1109/LAWP.2026.3721512

Wen-Zhao Liu;Qiu-Yan Liang;Jie Ma;Wei-Shan Li;Zhong-Xiang Shen;Shi-Gang Zhou;Rui Xu

{"title":"A Wide-Angle Scanning Linear Array With Low-Profile Ungrounded Highly Directive Element","authors":"Wen-Zhao Liu;Qiu-Yan Liang;Jie Ma;Wei-Shan Li;Zhong-Xiang Shen;Shi-Gang Zhou;Rui Xu","doi":"10.1109/LAWP.2026.3721512","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3721512","url":null,"abstract":"This letter presents a novel approach to enhance the scanning range of a linear array by employing a highly directive antenna element with ungrounded and low-profile characteristics. The proposed antenna element, consisting of two closely spaced dipoles, realizes a good front-to-back ratio (FTBR) by adjusting the space and phase difference between the dipoles. A balun feeding structure is utilized to achieve impedance matching of the closely spaced dipoles. The proposed antenna element demonstrates an impressive half-power beamwidth (HPBW) of up to 162°. Consequently, a 1 × 8 linear array along the H-plane is designed based on the proposed antenna element. U-shaped branches are incorporated to simultaneously suppress mutual coupling and broaden the element HPBW. A prototype of this array operating at X band is fabricated and measured, achieving a scanning range of ±80° with sidelobe level lower than −10 dB and low gain fluctuation. This low-profile ungrounded antenna array achieves wide-angle scanning, providing good potential for application on conformal platforms.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"3948-3952"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124568","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Novel Architecture for Further Gain-to-Volume Ratio Enhancement of Ultraminiaturized Dual-Band Dual-Circularly Polarized Antenna 一种进一步提高微型化双频双圆极化天线增益体积比的新结构

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-19 DOI: 10.1109/LAWP.2026.3725314

Zhenchuan Liang;Haidong Chen;Sheng Ding;Huawei Yu;Zhiye Zhou;Wenquan Che

引用次数: 0

Single-Layer Beam-Scanning Reconfigurable Reflectarray Using Sweep-Holding Control Circuit 基于扫描保持控制电路的单层波束扫描可重构反射阵列

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-03 DOI: 10.1109/LAWP.2026.3719693

Si Yu Miao;Yong Jian Jin;Feng Han Lin

{"title":"Single-Layer Beam-Scanning Reconfigurable Reflectarray Using Sweep-Holding Control Circuit","authors":"Si Yu Miao;Yong Jian Jin;Feng Han Lin","doi":"10.1109/LAWP.2026.3719693","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3719693","url":null,"abstract":"A single-layer reconfigurable reflectarray (RRA) is proposed for ±60° scanning by using a sweep-holding control circuit. Conventional <italic>N ×<italic>N RRAs allocate each element with an individual biasing line of static voltage, causing difficulty in accommodating <italic>N 2 lines on a single metallic layer. In this work, the number of biasing lines is reduced from <italic>N 2 to 2<italic>N by using a dynamic sweep-holding circuit in two steps. Firstly, each row of elements is biased by one line, hence a total number of <italic>N lines for row-biasing, and for each column of elements, another <italic>N lines for column-biasing. By dynamically changing the biasing matrix, each element is swept for state updating. To hold the element state before the next command, each element is integrated with an RC circuit that discharges for local biasing. For proof of concept, an X-band 256-element RRA with the new biasing circuit is fabricated, achieving a measured scanning range of ±60° with a scanning loss of 4 dB. The proposed design allows for a top-layer integration of the biasing circuit into the array aperture without multilayer bonding, offering a cost-effective, conformable, and scalable solution to reconfigurable reflectarrays and intelligent surfaces for potential applications in the next-generation networks.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"3908-3912"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149124517","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Multitarget Human Scattering Modeling Using 2.5-D FEM for RF Sensing 基于2.5维有限元的射频传感多目标人体散射建模

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-07 DOI: 10.1109/LAWP.2026.3721859

Haoqing Wen;Michele D'Amico;Matteo Oldoni;Federica Fieramosca;Vittorio Rampa;Stefano Savazzi;Qi Wu;Gian Guido Gentili

{"title":"Multitarget Human Scattering Modeling Using 2.5-D FEM for RF Sensing","authors":"Haoqing Wen;Michele D'Amico;Matteo Oldoni;Federica Fieramosca;Vittorio Rampa;Stefano Savazzi;Qi Wu;Gian Guido Gentili","doi":"10.1109/LAWP.2026.3721859","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3721859","url":null,"abstract":"This letter proposes an approximate model based on electromagnetic scattering superposition for multitarget indoor passive radio frequency (RF) sensing scenarios, aiming to predict the influence of multiple human bodies on wireless network link signal strengths. A line-of-sight condition is presented to simplify the compensation of shadowing effects. The scattering superposition model is validated numerically with a full-wave EM solver under different numbers of targets, separation distances, and occlusion conditions. The overall approximate framework is further validated against indoor measurements, showing good agreement in both received signal strength indicator and spatial variation trends across different link configurations. The proposed model provides a lightweight and computationally efficient solution for multitarget RF sensing, enabling low-cost yet accurate generation of large-scale synthetic databases for the training of machine-learning-based RF sensing networks with specific applications to people detection, people trajectory tracking, and RF tomography.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"3968-3972"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11645009","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149125438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

An Adaptive Mode Selection and Field Reconstruction Method for Multimode Propagation in Evaporation Ducts 蒸发管道中多模传输的自适应模式选择与场重建方法

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-07-17 DOI: 10.1109/LAWP.2026.3714208

Kuanyi Chen;Qiang Zhao;Bing Wei;Huaiyun Peng;Qingliang Li

{"title":"An Adaptive Mode Selection and Field Reconstruction Method for Multimode Propagation in Evaporation Ducts","authors":"Kuanyi Chen;Qiang Zhao;Bing Wei;Huaiyun Peng;Qingliang Li","doi":"10.1109/LAWP.2026.3714208","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3714208","url":null,"abstract":"Electromagnetic (EM) wave propagation in evaporation duct (ED) environments exhibits pronounced multimode behavior, making modal discrimination and interpretation of propagation mechanisms more challenging. Although the parabolic equation (PE) method provides reliable propagation predictions, it does not directly reveal the physical origin of field structures, while conventional waveguide mode theory is challenged by effective mode selection and contamination from pseudo modes. To address these issues, this letter proposes an adaptive mode selection and field reconstruction method for multimode propagation in ED environments. The method constructs a candidate mode library, establishes three-class mode criteria, and performs ranking and truncation according to the range-dependent modal contributions. Analyses of representative stratifications at 6 GHz, 10 GHz, and 15 GHz show that, within the main low-altitude propagation region from 20 km to 100 km, the proposed method agrees well with the wide-angle parabolic equation (WAPE) reference solution, yields a propagation factor (PF) reconstruction error below 0.5 dB, and attributes the main field structures to the superposition of a few dominant modes. The proposed method provides an effective framework for stable modal discrimination, interpretable analysis, and field reconstruction in multimode propagation under ED conditions.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"3848-3852"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149125509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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

Layer-Differentiated Folded Transmitarray With Dual Phase Centers for Dual-Band Dual-Polarized Millimeter-Wave Applications 用于双频双极化毫米波应用的双相位中心分层折叠发射阵列

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-19 DOI: 10.1109/LAWP.2026.3724899

Xiaocha Liu;Canguan Gao;Mengxuan Zhuang;Guo-Min Yang

{"title":"Layer-Differentiated Folded Transmitarray With Dual Phase Centers for Dual-Band Dual-Polarized Millimeter-Wave Applications","authors":"Xiaocha Liu;Canguan Gao;Mengxuan Zhuang;Guo-Min Yang","doi":"10.1109/LAWP.2026.3724899","DOIUrl":"https://doi.org/10.1109/LAWP.2026.3724899","url":null,"abstract":"In this letter, a compact and high-gain folded transmitarray (FTA) is proposed to provide two tunable high-gain operating bands located within the n258 and n257 millimeter-wave frequency ranges. The proposed design integrates phase tuning and beam focusing into a single dual-layer metasurface, in which the two layers adopt different unit-cell dimensions and different aperture extents to address the two operating bands independently. To further reduce the aperture area, two phase centers are interleaved within the same metasurface, one for vertical and one for horizontal polarization. It allows two orthogonally polarized feeds (spaced only 26 mm apart) to share the aperture while producing parallel main beams. This configuration shrinks the metasurface footprint by 37.5% (from 84 × 168 mm to 84 × 105 mm), and achieves a measured peak gain of 22.7 dBi, a port isolation better than 40 dB, and a cross-polarization isolation exceeding 27 dB. The peak-gain frequency can be readily tuned by adjusting the cavity height. With its low cost, compact profile, and high performance, the proposed FTA is well-suited to civil mm-wave systems such as 5G/6G networks.","PeriodicalId":51059,"journal":{"name":"IEEE Antennas and Wireless Propagation Letters","volume":"25 10","pages":"4073-4077"},"PeriodicalIF":4.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149125556","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"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 Wideband 3-D-Printed Core-Plug Embedded Quarter-Mode Dielectric Resonator Antenna 宽带3d打印芯塞嵌入式四分之一模介电谐振器天线

IF 4.6 2区计算机科学

IEEE Antennas and Wireless Propagation Letters Pub Date : 2026-10-01 Epub Date: 2026-08-26 DOI: 10.1109/LAWP.2026.3727700

Giacomo Muntoni;Andrea Melis;Matteo Bruno Lodi;Marco Simone;Olga Basile;Giuseppe Mazzarella;Gino Sorbello;Alessandro Fanti

引用次数: 0