IEEE Transactions on Microwave Theory and Techniques最新文献_第7页

A Photonic-Assisted Transmitter Integrated With a High-Power Traveling Wave Photodetector and a Yagi Antenna on Silicon-on-Insulator Substrate 在绝缘体上硅衬底上集成高功率行波探测器和八木天线的光子辅助发射机

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-15 DOI: 10.1109/TMTT.2025.3556862

Zhujun Wei;Qiang Zhang;Zhilei Fu;Qikai Huang;Zichao Zhao;Yuehai Wang;Jianyi Yang;Hui Yu

{"title":"A Photonic-Assisted Transmitter Integrated With a High-Power Traveling Wave Photodetector and a Yagi Antenna on Silicon-on-Insulator Substrate","authors":"Zhujun Wei;Qiang Zhang;Zhilei Fu;Qikai Huang;Zichao Zhao;Yuehai Wang;Jianyi Yang;Hui Yu","doi":"10.1109/TMTT.2025.3556862","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3556862","url":null,"abstract":"A mm-wave photonic-assisted transmitter chip composed of a high-power distributed traveling wave photodetector (TWPD), a compact Yagi antenna, and a bias circuitry network is demonstrated on a silicon-on-insulator (SOI) substrate. By aperiodically loading four Ge/Si photodetector (PD) units on the traveling-wave electrode, the TWPD achieves a bandwidth of 42 GHz and a saturation RF output power of 1.4 dBm at the target frequency of 35 GHz. The RF output of the TWPD then directly drives the Yagi antenna monolithically integrated on the same chip. To enhance the RF power delivery efficiency from the TWPD to the antenna, the geometry of the Yagi antenna is optimized so that its impedance is conjugately matched to that of the TWPD. The optimized antenna presents a gain of 3 dBi at 35 GHz along the endfire direction, while its half-power beamwidths are 105° at both E- and H-planes. The transmitter chip provides high effective isotropic radiated powers (EIRPs) of 1.8/3.2 dBm at 35/32 GHz. Furthermore, it successfully transmits a 35 GHz wireless signal encoded with an 8 Gb/s data stream in the nonreturn-to-zero (NRZ) on-off-keying format.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 9","pages":"6738-6748"},"PeriodicalIF":4.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073176","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Reconfigured Grating Structure With Frequency-Selective Characteristics for Higher Order Mode Suppression 具有频率选择特性的高阶模抑制重构光栅结构

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-15 DOI: 10.1109/TMTT.2025.3556878

Jingrui Duan;Haifeng Chen;Zhigang Lu;Peng Gao;Zechuan Wang;Yuan Zheng;Ping Zhang;Zhanliang Wang;Shaomeng Wang;Huarong Gong;Yubin Gong

引用次数: 0

Frequency-Selective Polarization Conversion Metasurface Design Method Based on Parasitic Patch Loading 基于寄生贴片加载的频率选择极化转换超表面设计方法

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-15 DOI: 10.1109/TMTT.2025.3554730

Fu-Chang Chen;Hang Yuan;Gen-Zhu Liang;Kai-Ran Xiang

{"title":"Frequency-Selective Polarization Conversion Metasurface Design Method Based on Parasitic Patch Loading","authors":"Fu-Chang Chen;Hang Yuan;Gen-Zhu Liang;Kai-Ran Xiang","doi":"10.1109/TMTT.2025.3554730","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3554730","url":null,"abstract":"A novel frequency-selective polarization conversion metasurface (PCM) design method is proposed in this article. Based on the parasitic patch loading technique, several reflective frequency-selective PCMs are designed with simple structure and good polarization conversion performance. The periodic unit is made up of a split ring at the top, a rectangular patch in the middle, and a metallic ground at the bottom. The split ring is used to convert the polarization, and the rectangular patch is used as the parasitic resonator to create an extra coupling path, which introduces an extra polarization conversion pole (PCP) and a zero (PCZ). By introducing two orthogonal patches under the split ring, three PCPs in the band and two PCZs at the edges of the passband can be acquired. Finally, to make the structure simpler and less bulky, a cross-shaped dual-mode rectangular patch is introduced to replace two orthogonal patches, which can also realize three PCPs and two PCZs. The design progress and working principle of the PCM are described and analyzed in detail. To validate the design method, the last PCM is fabricated and measured, containing a 3-dB bandwidth of 4.78–5.24 GHz (9.2%) and two zeros located at 4.7 and 5.3 GHz. This design method can create a PCM that is selective and wideband, and which has a simple structure and is easy to make.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 9","pages":"6632-6642"},"PeriodicalIF":4.5,"publicationDate":"2025-04-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073240","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Highly Efficient, Scalable, Tetra-Band Metamaterial-Based Ambient RF Energy Harvester 一种高效、可扩展、基于四波段超材料的环境射频能量采集器

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-14 DOI: 10.1109/TMTT.2025.3555848

Aaron M. Graham;Spyridon Nektarios Daskalakis;Vincent Fusco;Manos M. Tentzeris;Stylianos D. Asimonis

{"title":"A Highly Efficient, Scalable, Tetra-Band Metamaterial-Based Ambient RF Energy Harvester","authors":"Aaron M. Graham;Spyridon Nektarios Daskalakis;Vincent Fusco;Manos M. Tentzeris;Stylianos D. Asimonis","doi":"10.1109/TMTT.2025.3555848","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3555848","url":null,"abstract":"This article presents an innovative metamaterial-based radio frequency (RF) energy harvesting system designed to efficiently capture ambient RF energy across multiple frequency bands, including Wi-Fi (2.45 GHz) and 5G (0.9, 1.8, 2.1 GHz). Utilizing electric inductive-capacitive resonators and a rectification circuit, the system converts ambient RF energy into direct current (dc) power with high efficiency. Specifically, a single unit cell of the proposed <inline-formula> <tex-math>$8 times 8$ </tex-math></inline-formula> harvester is capable of generating up to <inline-formula> <tex-math>$562~mu $ </tex-math></inline-formula>W under an RF ambient power density of <inline-formula> <tex-math>$40~mu $ </tex-math></inline-formula>W/cm<sup>2</sup>. This high efficiency and scalability make it ideal for powering low-power Internet-of-Things (IoT) devices and sensors. The design emphasizes optimizing the unit cell to minimize computational complexity, enabling a more straightforward and scalable implementation. Experimental results demonstrate the system’s ability to efficiently harvest RF power across the specified bands, validating its potential as a sustainable solution for the growing power demands of IoT networks.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 9","pages":"6787-6798"},"PeriodicalIF":4.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073430","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Uncertainty Quantification and Calibration in Full-Wave Inverse Scattering Problems With Evidential Neural Networks 基于证据神经网络的全波逆散射问题的不确定度定量与校正

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-14 DOI: 10.1109/TMTT.2025.3555256

Tingyu Li;Rencheng Song;Xiuzhu Ye

{"title":"Uncertainty Quantification and Calibration in Full-Wave Inverse Scattering Problems With Evidential Neural Networks","authors":"Tingyu Li;Rencheng Song;Xiuzhu Ye","doi":"10.1109/TMTT.2025.3555256","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3555256","url":null,"abstract":"Recently, deep learning-based solvers for inverse scattering problems (ISPs) have been continuously developed. The ill-posedness and nonlinear nature of ISPs make deep learning-based ISP solvers sensitive to input data and prone to generalization issues, thus necessitating uncertainty quantification (UQ) and calibration. Conventional methods for UQ and calibration of deep learning-based ISP solvers primarily include deep ensemble and dropout-based methods based on Bayesian neural networks (BNNs). However, these methods require extra steps to generate multiple predictions for estimating model uncertainty. In addition, these BNN-based methods are sensitive to prior selection and may yield unsatisfactory calibration performance. This article proposes an evidential deep learning scheme (EDLS) to solve ISPs and obtain pixelwise and better-calibrated uncertainty estimates with lower computational cost. To evaluate the performance of uncertainty calibration, we use calibration curves to assess the consistency between expected and observed confidence levels. Comparative experiments with deep ensemble and Monte Carlo dropout (MC-Dropout) demonstrate that EDLS exhibits advantages in reconstruction accuracy and uncertainty calibration quality, providing uncertainty estimates that are most consistent with prediction errors. EDLS offers a real time, calibrated, and scalable approach for obtaining ISP reconstruction results and reliable uncertainty estimates.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 9","pages":"6304-6316"},"PeriodicalIF":4.5,"publicationDate":"2025-04-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073238","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Visibly Transparent Tunable Water-Based Metamaterial for Microwave-Infrared Camouflage 用于微波红外伪装的透明可调水基超材料

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-10 DOI: 10.1109/TMTT.2025.3554841

Shangru Li;Houyuan Cheng;Junyu Liang;Fan Ding;Xiaofeng Zhou;Helin Yang;Jing Jin

引用次数: 0

THz Integrated Sensing and Communication With Full-Photonic Direct LFM Reception and De-Chirping for D-Band Fiber-Wireless Network d波段光纤无线网络全光子直接LFM接收和去啁啾的太赫兹集成传感与通信

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-10 DOI: 10.1109/TMTT.2025.3549729

Boyu Dong;Zhongya Li;Sizhe Xing;Yinjun Liu;Junhao Zhao;Ouhan Huang;Junlian Jia;Jianyang Shi;Yingjun Zhou;Haipeng Wang;Nan Chi;Junwen Zhang

{"title":"THz Integrated Sensing and Communication With Full-Photonic Direct LFM Reception and De-Chirping for D-Band Fiber-Wireless Network","authors":"Boyu Dong;Zhongya Li;Sizhe Xing;Yinjun Liu;Junhao Zhao;Ouhan Huang;Junlian Jia;Jianyang Shi;Yingjun Zhou;Haipeng Wang;Nan Chi;Junwen Zhang","doi":"10.1109/TMTT.2025.3549729","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3549729","url":null,"abstract":"Integration of sensing and communication (ISAC) systems at the terahertz (THz) band will play a crucial role across a myriad of applications in the 6G era, profoundly enhancing our daily experiences. Photonic-based THz ISAC systems harness the inherent broad bandwidth to directly generate high-frequency broadband signals, ensuring seamless integration with fiber-wireless networks and demonstrating significant potential. Current ISAC systems employ linear frequency modulation (LFM) signals for sensing struggle to directly receive and de-chirp THz echo signals, which, nonetheless, curtails sensing capabilities; moreover, no research has yet investigated the impact of varying fiber lengths on the performance of downlink sensing signal transmission and uplink echo signal return. This article presents a THz photonic-based ISAC system designed to surmount these limitations. At the radar receiver, full-photonic direct reception and de-chirping of D-band LFM signals are realized by a high-bandwidth thin-film lithium niobate Mach-Zehnder modulator (TFLN-MZM); moreover, we evaluate the impact of different fiber lengths on system performance. Our system attains an exceptional range resolution of 6 mm and a peak data rate of 116 Gbit/s at a center frequency of 134 GHz, with a calibrated mean ranging error of less than 3 mm.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 8","pages":"5383-5395"},"PeriodicalIF":4.5,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144853181","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Compact Wideband Simultaneous Noise and Input Matching Method Based on Three-Coil Transformer With Capacitor Assistance for LNA Design 一种基于电容辅助三圈变压器的紧凑型宽带同步噪声与输入匹配方法

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-09 DOI: 10.1109/TMTT.2025.3554820

Chenglong Liang;Ruixin Liang;Suyuan Gan;Bingjun Tang;Zixun Gao;Qian Dong;Zhaoyang Ma;Youze Xin;Yi Xie;Bing Zhang;Li Geng

{"title":"A Compact Wideband Simultaneous Noise and Input Matching Method Based on Three-Coil Transformer With Capacitor Assistance for LNA Design","authors":"Chenglong Liang;Ruixin Liang;Suyuan Gan;Bingjun Tang;Zixun Gao;Qian Dong;Zhaoyang Ma;Youze Xin;Yi Xie;Bing Zhang;Li Geng","doi":"10.1109/TMTT.2025.3554820","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3554820","url":null,"abstract":"A method for achieving wideband simultaneous noise and input matching (SNIM) based on traditional higher order networks has been analyzed and improved through capacitor-assisted techniques. Subsequently, a new wideband SNIM approach, utilizing a three-coil transformer combined with capacitor assistance, is proposed. Without altering the conventional topological structure, the introduction of the coupling factor significantly reduced the chip area and the noise contribution from passive components, thereby lowering the overall noise figure (NF). To validate the design, a C-band two-stage current-reused low-noise amplifier (LNA) was designed with a 55-nm CMOS process. The measurement results indicate that S11 is below −10 dB across a wideband of 2.5–8.5 GHz. A power gain of 24.6 dB is achieved at 5 GHz with −3-dB bandwidth of 4.8 GHz. The noise matching discrepancy (NF-NF<sub>min</sub>) remains 0.15 dB within the band range of 4.2–8.5 GHz, and NF maintains below 2 dB, while the power consumption is only 9.1 mW.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 9","pages":"6339-6352"},"PeriodicalIF":4.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073219","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Capacitive-Tuned SIW Evanescent-Mode Cavity for Resonant Microwave Plasma Jets 谐振微波等离子体射流电容调谐SIW倏逝模腔

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-09 DOI: 10.1109/TMTT.2025.3554611

Kazi Sadman Kabir;Kushagra Singhal;Abbas Semnani

{"title":"Capacitive-Tuned SIW Evanescent-Mode Cavity for Resonant Microwave Plasma Jets","authors":"Kazi Sadman Kabir;Kushagra Singhal;Abbas Semnani","doi":"10.1109/TMTT.2025.3554611","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3554611","url":null,"abstract":"This article introduces a novel atmospheric pressure and frequency-tunable microwave plasma jet utilizing evanescent-mode cavity (EVA) resonator technology. The design uses a substrate-integrated waveguide (SIW) approach, where two PCB substrates are assembled to form the resonant microwave plasma jet structure. This configuration provides excellent matching performance across the tuning range and can generate power-efficient plasma jets with a minimal input power of just a few watts. The prototype’s resonant frequency can be tuned from 2.94 GHz, with no tuning capacitor, to 2.66 GHz when a capacitor placed in parallel with a circular slot etched on the top PCB board varies up to 1.6 pF. A novel circuit model design approach for this prototype is presented, and close agreement between the measured performance of the fabricated prototype and the simulation results validates this model. The frequency tunability achieved is a critical feature for fine-tuning the plasma jet when fabricated by low-cost PCB manufacturing and for applications in which manipulation of the plasma chemistry by varying the ignition frequency is essential.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 9","pages":"6799-6808"},"PeriodicalIF":4.5,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073292","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ultrawideband Efficient Channelized Receiver Based on Photonic-Assisted Acousto-Optic Frequency Shifters 基于光子辅助声光移频器的超宽带高效信道化接收机

IF 4.5 1区工程技术

IEEE Transactions on Microwave Theory and Techniques Pub Date : 2025-04-08 DOI: 10.1109/TMTT.2025.3553286

Weile Zhai;Donglin Zhang;Ruiqiong Wang;Yuanliang Wu;Long Liu;Xirui Zhong;Wanzhao Cui;Yongsheng Gao

{"title":"Ultrawideband Efficient Channelized Receiver Based on Photonic-Assisted Acousto-Optic Frequency Shifters","authors":"Weile Zhai;Donglin Zhang;Ruiqiong Wang;Yuanliang Wu;Long Liu;Xirui Zhong;Wanzhao Cui;Yongsheng Gao","doi":"10.1109/TMTT.2025.3553286","DOIUrl":"https://doi.org/10.1109/TMTT.2025.3553286","url":null,"abstract":"Radio frequency (RF) channelization is a critical technology for comprehensive signal reception and detection across various domains. However, digital channelized receivers encounter significant limitations when processing broadband signals exceeding 10 GHz due to the inherent processing constraints. Existing photonic-assisted channelized receivers are limited by inefficient optical frequency comb (OFC) utilization, where the channel count is confined to the number of comb lines and challenged by complex OFC generation and intrachannel crosstalk. In this work, an ultrawideband and high-efficiency RF signal channelization scheme based on a single OFC and acousto-optic frequency shifter (AOFS) is proposed and demonstrated. The RF channelization across 33 channels over the 0–33-GHz frequency range is experimentally validated using a single phase modulator (PM) for OFC generation, which significantly improves the OFC utilization and simplifies the system structure. In addition, the comparison of OFC utilization, the digital domain image suppression algorithm, and the channel number expansion in the proposed scheme is discussed. The innovative channelized receiver holds substantial promise for advanced applications in spectrum monitoring, electronic warfare, modern communications, and high-resolution radar systems.","PeriodicalId":13272,"journal":{"name":"IEEE Transactions on Microwave Theory and Techniques","volume":"73 9","pages":"6728-6737"},"PeriodicalIF":4.5,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145073418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0