IEEE Transactions on Antennas and Propagation最新文献

A Stacked Metasurface-Enabled Ultrawideband Millimeter-Wave Antenna Array With Substrate-Integrated Coaxial Line Feeding 一种具有基片集成同轴馈线的叠层超宽带毫米波天线阵列

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-02 DOI: 10.1109/TAP.2026.3707697

Zhi Zhao;Ji-Wei Lian;Yedi Zhou;Jihong Gu;Chao-Fu Wang;Sergei Khakhomov;Dazhi Ding

{"title":"A Stacked Metasurface-Enabled Ultrawideband Millimeter-Wave Antenna Array With Substrate-Integrated Coaxial Line Feeding","authors":"Zhi Zhao;Ji-Wei Lian;Yedi Zhou;Jihong Gu;Chao-Fu Wang;Sergei Khakhomov;Dazhi Ding","doi":"10.1109/TAP.2026.3707697","DOIUrl":"https://doi.org/10.1109/TAP.2026.3707697","url":null,"abstract":"An ultrawideband antenna array employing a substrate-integrated coaxial line (SICL) feeding network and a stacked metasurface configuration is presented for millimeter-wave (mm-wave) applications. The antenna element achieves an operating frequency range of 16.45–50.38 GHz, corresponding to a fractional bandwidth of 101.5%. The bandwidth enhancement mechanism is analyzed using characteristic mode analysis (CMA) in conjunction with an equivalent-circuit model. Electric field and surface current distributions indicate that the stacked metasurface mitigates radiation-pattern degradation at high frequencies associated with the enlarged electrical aperture of a single-layer metasurface. A <inline-formula> <tex-math>$1times 8$ </tex-math></inline-formula> antenna array is then developed by integrating a transition structure with the SICL feeding network. The array exhibits an operating bandwidth of 15.84–49.15 GHz (102.5% fractional bandwidth) and a peak gain of 18.58 dBi. The proposed design demonstrates superior bandwidth performance compared with existing wideband metasurface-based antenna arrays.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9598-9611"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131137","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

Compact and Multiband Open-End Slot Antenna for Carbon-Fiber Smart Glasses 用于碳纤维智能眼镜的紧凑型多频带开口槽天线

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-09 DOI: 10.1109/TAP.2026.3709364

Ziheng Ding;Meiling Li;Xiaolei Li;Jingfeng Chen;Ronghong Jin;Yongxin Guo

{"title":"Compact and Multiband Open-End Slot Antenna for Carbon-Fiber Smart Glasses","authors":"Ziheng Ding;Meiling Li;Xiaolei Li;Jingfeng Chen;Ronghong Jin;Yongxin Guo","doi":"10.1109/TAP.2026.3709364","DOIUrl":"https://doi.org/10.1109/TAP.2026.3709364","url":null,"abstract":"A compact and multiband U-shaped open-end slot antenna designed for carbon fiber reinforced polymer (CFRP) smart glasses is presented. Multiband operation is achieved through the integration and codesign of an open-end slot, a CFRP temple, and a mainboard. Characteristic mode analysis (CMA) is employed to identify the resonant modes supported by the CFRP glass structure and to guide the excitation strategy for the targeted operating bands. In addition, an anisotropic conductivity model is established for CFRP to enable reliable full-wave simulation of the CFRP temple antenna. For experimental validation, a prototype supporting the operating bands of Wi-Fi 7 is fabricated and measured. It occupies a compact size of <inline-formula> <tex-math>$0.11lambda _{mathrm {L}} times 0.014lambda _{mathrm {L}}$ </tex-math></inline-formula> and is accompanied by a glass fiber reinforced polymer (GFRP) clearance of <inline-formula> <tex-math>$0.154lambda _{mathrm {L}} times 0.014lambda _{L}$ </tex-math></inline-formula>, which is advantageous for miniaturization and lightweight smart-glasses design. Measured results agree well with the simulated results, achieving average total efficiencies (with phantom) of −7.6 dB at 2.4 GHz and −4.5 dB across the 5-/6-GHz bands. Moreover, the specific absorption rate (SAR) complies with regulatory limits.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9448-9460"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131305","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

Wireless Multiport Sensing: Virtual-VNA-Enabled De-Embedding of an Over-the-Air Fixture 无线多端口传感：无线固定装置的虚拟vna支持去嵌入

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2025-12-09 DOI: 10.1109/TAP.2025.3639951

Philipp del Hougne

{"title":"Wireless Multiport Sensing: Virtual-VNA-Enabled De-Embedding of an Over-the-Air Fixture","authors":"Philipp del Hougne","doi":"10.1109/TAP.2025.3639951","DOIUrl":"https://doi.org/10.1109/TAP.2025.3639951","url":null,"abstract":"We develop a multiport-backscatter-modulation technique to determine, over the air (OTA), the scattering parameters of a linear, passive, time-invariant multiport device under test (DUT). A set of “not-directly-accessible” (NDA) antennas can be switched between being terminated by the DUT or by a specific, known, tunable load network (TLN). Waves can be radiated and captured via a distinct set of “accessible” antennas that couple OTA to the NDA antennas. <italic>First, we characterize the OTA fixture between the accessible antennas’ ports and the DUT’s ports. We achieve this based on our recently introduced Virtual Vector Network Analyzer (Virtual VNA) technique; specifically, we connect the NDA antennas to the TLN and measure the scattering at the accessible antennas’ ports for various configurations of the TLN. <italic>Second, we connect the NDA antennas to the DUT and measure the scattering at the accessible antennas’ ports. <italic>Third, we de-embed the OTA fixture to retrieve the DUT’s scattering parameters. We experimentally validate our technique at 2.45 GHz for one-port DUTs and five-port DUTs, considering a rich-scattering OTA fixture inside a reverberation chamber. We systematically study the influence of the number of accessible antennas and various conceivable simplifications in terms of the system model and the properties of the TLN. Our wireless multiport sensing technique can find applications in areas such as RFID and wireless bioelectronics.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9302-9315"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131454","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 Bidirectional Fabry–Pérot Cavity Antenna With Flat-Top and Pencil Beam Integration for Millimeter Wave Applications 一种用于毫米波应用的平顶和铅笔波束集成的双向法布里-波腔天线

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-06-30 DOI: 10.1109/TAP.2026.3706948

Mingxuan Liang;Qiwei Fu;Qing-Yi Guo

{"title":"A Bidirectional Fabry–Pérot Cavity Antenna With Flat-Top and Pencil Beam Integration for Millimeter Wave Applications","authors":"Mingxuan Liang;Qiwei Fu;Qing-Yi Guo","doi":"10.1109/TAP.2026.3706948","DOIUrl":"https://doi.org/10.1109/TAP.2026.3706948","url":null,"abstract":"This article proposes a bidirectional Fabry–Pérot cavity (FPC) antenna with flat-top and pencil beam integration. It is the first attempt to propose a structurally shared reflector (SSR) for a bidirectional FPC antenna. The SSR contributes to phase and magnitude manipulation for bidirectional beams. For the generation of the flat-top beam, the SSR acts as a reversely curved ground. For the generation of the directive/pencil beam, the SSR functions as a quasi-curved ground, enabling an in-phase field distribution in the backward radiation direction. In addition, by exciting multiple resonant modes and manipulating their phase distributions on the back radiation aperture, the gain level and bandwidth can be enhanced. For verification, an antenna prototype based on the above design principles is designed, fabricated, and measured. It achieves an overlapped impedance-matching bandwidth from 28.65 to 31.45 GHz for both radiation states. It yields a peak gain of 19.36 dBi in the pencil beam state. For the flat-top beam state, a 3-dB beamwidth of 120° and a peak gain of 9.24 dBi are achieved. The gain fluctuation within the bandwidth is less than 1 dB. It is a good candidate for millimeter wave communication scenarios such as the satellite-air-ground integrated networks (SAGINs).","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9316-9325"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131456","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

Improved Broadband Antenna Gain Measurements Through Multipath Mitigation Using Combined Robot Motion Stirring 利用联合机器人运动搅拌的多径缓解改进宽带天线增益测量

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-09 DOI: 10.1109/TAP.2026.3709578

Joshua A. Gordon;Benjamin L. Moser

{"title":"Improved Broadband Antenna Gain Measurements Through Multipath Mitigation Using Combined Robot Motion Stirring","authors":"Joshua A. Gordon;Benjamin L. Moser","doi":"10.1109/TAP.2026.3709578","DOIUrl":"https://doi.org/10.1109/TAP.2026.3709578","url":null,"abstract":"In this article we describe a technique developed at the National Institute of Standards and Technology (NIST) that uses coordinated motion of two robotic antenna positioners to mitigate the influence of chamber multipath reflections during antenna gain measurements. With this technique, through calibrated kinematic control of the robotic positioners, antenna-pair poses are dynamically changed relative to the bounds of the chamber while maintaining the measurement geometry in the reference frame of the antenna pairs. This creates a scenario where the chamber is effectively moving relative to the reference frame of the gain measurement geometry, thus resulting in “stirring” of the multipath chamber reflections. Through this stirring process, the effect of multipath reflections can be effectively averaged out, and antenna gain recovered even in the presence of appreciable multipath reflections. This technique is demonstrated with the three-antenna gain extrapolation method to improve gain calibrations that involve broadband dual-ridge horn antennas (DRHAs). Measurements were conducted in the WR430 and WR650 bands on NIST standard gain horn (SGH) reference antennas and lower gain broadband dual-ridge horn antennas using the NIST dual-robot Large Antenna Positioning System. Results show that antenna gain can be accurately determined with uncertainties of <inline-formula> <tex-math>$approx pm 0.07$ </tex-math></inline-formula> dB, even when measurements are significantly perturbed by several dB due to chamber multipath reflections caused by the lower gain dual-DRHAs.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9352-9361"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131504","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

Wireless Power Transfer Preliminary Validation of a Quasioptical Lunar Solar Power Satellite 准光学月球太阳能卫星的无线电力传输初步验证

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-15 DOI: 10.1109/TAP.2026.3711770

Ricardo A. M. Pereira;Ricardo Figueiredo;Helena Ribeiro;Hélder Morais;J. Martinho M. Oliveira;Nuno Borges Carvalho

{"title":"Wireless Power Transfer Preliminary Validation of a Quasioptical Lunar Solar Power Satellite","authors":"Ricardo A. M. Pereira;Ricardo Figueiredo;Helena Ribeiro;Hélder Morais;J. Martinho M. Oliveira;Nuno Borges Carvalho","doi":"10.1109/TAP.2026.3711770","DOIUrl":"https://doi.org/10.1109/TAP.2026.3711770","url":null,"abstract":"Radiative wireless power transfer (WPT) has the potential to radically alter the way we power our society. We have used the quasioptical (QO) framework to increase the beam efficiency by reducing the spillover losses. With this new tool, we have proposed a new solar power satellite (SPS) architecture that can power bases on the dark side of the Moon, being significantly smaller than other typical SPS systems. The present work details the preliminary work designed to validate the various WPT subsystems of a 100-m demonstrator. This first iteration allowed the design of an additively manufactured corrugated horn and a dielectric Fresnel lens, whose performance is compared to that of a traditional one with the same focal length, in a thorough experimental campaign. Furthermore, both lenses were used to set up a reciprocal double-lens 2.5 m system, which was carefully aligned with a vector network analyzer, allowing a beam efficiency of 42.73%, a 1600x increment when compared to the system without lenses, confirming that the QO approach is crucial in radiative WPT systems. Then, microwave transmission and an RF-DC conversion developed in-house were introduced to arrive at a complete DC–DC WPT system. The results and lessons learned here were important for preparing the final 100-m, as the single lens setup proposed for the final demonstrator is expected to overcome a beam efficiency of 50%.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9994-10009"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131696","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 140-GHz Wide-Scan Array-Fed Lens Antenna 一种140 ghz宽扫描阵列馈电透镜天线

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-09 DOI: 10.1109/TAP.2026.3709626

Jinglin Geng;Nuria Llombart;Maria Alonso-delPino;Waqas H. Syed;Giorgio Carluccio;Harish Nandagopal;Kostas Doris;Daniele Cavallo

引用次数: 0

Millimeter-Wave Broadband Wide-Scanning Phased Array With Stable Scanning Gain Based on Broadband Planar Decoupling Path 基于宽带平面解耦路径的扫描增益稳定的毫米波宽带宽扫描相控阵

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-20 DOI: 10.1109/TAP.2026.3713134

Jinghao Li;Wanchen Yang;Qiaguang Liu;Xiangchuan Wang;Wenquan Che;Shilong Pan

{"title":"Millimeter-Wave Broadband Wide-Scanning Phased Array With Stable Scanning Gain Based on Broadband Planar Decoupling Path","authors":"Jinghao Li;Wanchen Yang;Qiaguang Liu;Xiangchuan Wang;Wenquan Che;Shilong Pan","doi":"10.1109/TAP.2026.3713134","DOIUrl":"https://doi.org/10.1109/TAP.2026.3713134","url":null,"abstract":"In this article, a broadband planar decoupling path (BPDP) used as a decoupling method for a broadband wide-scanning phased array is proposed. By introducing extra coupling path that is equal magnitude and anti-phase to the inherent coupling path, the coupling can be canceled and high isolation can be achieved. Theoretical analysis on effects of multiple-port isolation on gain enhancement of phased arrays is discussed in the first place. Then, a series of improvements of planar decoupling paths (PDPs) loaded between two-element arrays is carried and the broadband working principles are analyzed by equivalent circuits to cancel the inherent coupling path from the perspectives of magnitude and phase. Based on this method, a high isolation <inline-formula> <tex-math>$2 times 4$ </tex-math></inline-formula> magnetoelectric (ME) dipole phased array using low-temperature-cofired ceramic (LTCC) process is constructed. The isolation is improved above 20 dB within a large bandwidth from 24 to 33 GHz. The gain increased by 2.2 dB when scanning at a large angle, with a maximum efficiency improvement of 20%. In order to further broaden the scanning range, metasurface structures (MSs) and two walls of metal grounded vias (GV) are loaded on both sides of the phased array, which can strengthen the radiation at low elevation angle and thus improve the scanning range up to ±70° within the 3-dB gain fluctuation. This method can be applied in large-scale arrays, which is suitable for future 5G millimeter-wave communication systems.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9498-9509"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131740","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

Self-Diplexing MIMO Antenna for Head-Implanted Devices 用于头部植入设备的自双工MIMO天线

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-01 DOI: 10.1109/TAP.2026.3707220

Amjad Iqbal;Amor Smida;Muath Al-Hasan;Ismail Ben Mabrouk;Tayeb A. Denidni

{"title":"Self-Diplexing MIMO Antenna for Head-Implanted Devices","authors":"Amjad Iqbal;Amor Smida;Muath Al-Hasan;Ismail Ben Mabrouk;Tayeb A. Denidni","doi":"10.1109/TAP.2026.3707220","DOIUrl":"https://doi.org/10.1109/TAP.2026.3707220","url":null,"abstract":"As the need for higher data rates continues to rise, the next generation of multiple-input–multiple-output (MIMO) technologies needs the capability of transmitting and receiving signals simultaneously without the need for additional circuits. This article presents a compact, highly isolated head-implanted self-diplexing MIMO antenna operating at 915 MHz and 1.45 GHz. The antenna consists of four ports: Port-1 and Port-2, placed diagonally, operate at 915 MHz, while Port-3 and Port-4, also placed diagonally, operate at 1.45 GHz. The antenna enables simultaneous uplink and downlink communication without the need for an external duplexer. A compact geometry of <inline-formula> <tex-math>$8times ~8times 0.25$ </tex-math></inline-formula> (16 mm3) is achieved using a high-permittivity substrate and a meandered radiator structure. High isolation (> 27.3 dB) between the radiators is obtained by employing a series of vias located at the center of the substrate and by using an ultrathin substrate with thickness of 0.25 mm. The antenna is simulated and measured at an implantation depth of 5 mm and achieves gains of −25.28 dBi at 915 MHz and −23.21 dBi at 1.45 GHz. The specific absorption rate (SAR) values are 46.1 W/kg at 915 MHz and 43.9 W/kg at 1.45 GHz. Link-margin analysis demonstrates reliable communication up to 4.5 m while maintaining a high data rate of 78 Mb/s. MIMO channel performance is also evaluated, where the channel capacity (CC) of the proposed antenna reaches 8.7 b/s/Hz at an SNR of 20 dB. The envelope correlation coefficient (ECC), calculated using far-field patterns, remains below 0.12. Finally, the simulated design is fabricated and experimentally validated using minced meat. The proposed antenna with excellent characteristics (compact geometry, impedance matching, reasonably good gain, very low SAR values, and high isolation) is appropriate for several RF medical devices. To the best of the authors’ knowledge, this is the first planar self-diplexing MIMO antenna reported to date.","PeriodicalId":13102,"journal":{"name":"IEEE Transactions on Antennas and Propagation","volume":"74 10","pages":"9406-9414"},"PeriodicalIF":5.9,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149131838","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 Quadruple-Ridged Orthomode Transducers With Reduced Higher Order Modal Content 降低高阶模态含量的四脊正交换能器设计

IF 5.9 1区计算机科学

IEEE Transactions on Antennas and Propagation Pub Date : 2026-10-01 Epub Date: 2026-07-07 DOI: 10.1109/TAP.2026.3708702

Kobus Kotzé;Werner Steyn;Petrie Meyer

引用次数: 0