2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)最新文献

A Lightweight, Low-Cost, S-Ku Band Dual-Polarized Antipodal Vivaldi Antenna Array for Next-Generation Airborne Systems 一种用于下一代机载系统的轻型、低成本、S-Ku波段双极化对足维瓦尔第天线阵列

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194257

Pedro Rodriguez-Garcia, Jim Pierpont, Josh Martin, E. Tobar, Clayton Weatherly, Rob George

引用次数: 0

Adapting Unsigned Signals Between Triaxial Antennas For Use In Magnetic Induction Localization 三轴天线间无符号信号自适应在磁感应定位中的应用

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194268

Francesco Bernardini, Javier Garcia, Conlan C. Taylor, J. Leclerc, Aaron T. Becker

引用次数: 0

A Quadrature Generator-Splitter and Vector Modulator Adders for a 5.8-GHz FMCW Phased Array Transmitter in 65nm CMOS 基于65nm CMOS的5.8 ghz FMCW相控阵发射机的正交产生分配器和矢量调制器加法器

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194282

Navid Naseh, Mohammad Ghaedi Bardeh, K. Entesari

{"title":"A Quadrature Generator-Splitter and Vector Modulator Adders for a 5.8-GHz FMCW Phased Array Transmitter in 65nm CMOS","authors":"Navid Naseh, Mohammad Ghaedi Bardeh, K. Entesari","doi":"10.1109/WMCS58822.2023.10194282","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194282","url":null,"abstract":"This paper presents a quadrature generator network and vector modulator adders for a 4-channel phased array for a frequency-modulated-continues-wave (FMCW) transmitter in the 5.8 GHz frequency band. The study employed the quadrature generator as a 4-way splitter to split the generated FMCW signal into transmitter channels. The phase of each channel is controlled by a 6-bit active vector modulator that enables 360° coverage with a phased resolution of 22.5° followed by VGA driver and PA. The addition of utilizing active loads with feedback resistors enabled inductor-less design and cost effective array integration in this frequency band. The TX quadrature generator splitter network and 4-channel vector modulators unit is implemented with the size of $0.25text{mm}times 1.5text{mm}$ in 65 nm CMOS technology. The simulated and measured phase RMS error less than 2° and 5° has been achieved, respectively as well as simulated and measured RMS gain error of less than 0.2 dB and 0.6 dB. The power consumption of the entire unit is 23 mW from a 1 V supply.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122506829","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Steady-State Thermal Analysis on a Real-Time Plasma Impedance Tuner for High-Power RF Matching Applications 大功率射频匹配实时等离子体阻抗调谐器的稳态热分析

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194283

Justin Roessler, A. Fisher, Austin Egbert, Trevor Van Hoosier, C. Baylis, D. Peroulis, R. Marks

{"title":"Steady-State Thermal Analysis on a Real-Time Plasma Impedance Tuner for High-Power RF Matching Applications","authors":"Justin Roessler, A. Fisher, Austin Egbert, Trevor Van Hoosier, C. Baylis, D. Peroulis, R. Marks","doi":"10.1109/WMCS58822.2023.10194283","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194283","url":null,"abstract":"With fifth generation (5G) wireless spectrum reallocation presenting an increasingly congested spectral environment, radar systems need to utilize the advantages of real-time high-power impedance tuners to reconfigure in real time for maximization of output power and detection range. The ability to analyze a low-loss plasma switched-network impedance tuner, previously demonstrated for high-power capability, is further developed for analysis of thermal failure. The goal is both to understand the thermal properties and limitations of the radio-frequency (RF) board of the tuner under impedance tuning conditions and to assess the thermal power handling capabilities of the tuner structure. Based on thermal failure, an approach for assessing power-handling capability is demonstrated using CST's 3-D Multiphysics solver for Electromagnetic (EM)-Thermal Coupled simulations. The EM simulator analyzes the current density across the structure and translates this current density into temperature through the electrothermal model. The thermal analysis shows at least 51.1 W of power handling over all tuner states and frequencies, given failure by solder reflow at 91.5°C. The results of this paper provide a framework for analysis of tuner thermal failure and assessment of power handling.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132752807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Edge-computing Platform for Low-Latency and Low-power Wearable Medical Devices for Epilepsy 低延迟低功耗癫痫可穿戴医疗设备的边缘计算平台

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194265

Md. Abu Sayeed, Fatahi Nasrin

引用次数: 0

A Wireless Trimodal Neural Interface Device with Electrical and Electrochemical Recording 一种具有电和电化学记录的无线三模神经接口装置

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194259

Isha Chakraborty, Ravi Akalkotkar, Dan Krueger, T. Coffin, Mochen Hu, Xiangyi Chen, Xingjian Gan, Swati Bhat, Linran Zhao, Y. Jia

{"title":"A Wireless Trimodal Neural Interface Device with Electrical and Electrochemical Recording","authors":"Isha Chakraborty, Ravi Akalkotkar, Dan Krueger, T. Coffin, Mochen Hu, Xiangyi Chen, Xingjian Gan, Swati Bhat, Linran Zhao, Y. Jia","doi":"10.1109/WMCS58822.2023.10194259","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194259","url":null,"abstract":"This paper introduces a wireless trimodal neural interface device capable of electrical neural recording, electrochemical neural recording, and optogenetic stimulation. The analog front-end (AFE) for electrical recording features a midband voltage gain of 60 dB, a bandwidth of 1–200 Hz, and an input referred noise voltage of $mathbf{5} boldsymbol{mu}mathbf{V}_{mathbf{RMS}}$. The electrochemical recording AFE contains a potentiostat with a transimpedance gain of $mathbf{100} mathbf{k}mathbf{Omega}$ and input referred noise current of $mathbf{50.2} mathbf{pA}_{mathbf{RMS}}$ and a fast-scan cyclic voltammetry (FSCV) waveform generator with a 400 V/s scan rate at a period of 100 ms. The LED driver holds the configurable optogenetic stimuli with options to adjust the LED current of up to 10 mA, pulse duration of 1–10 ms, and frequency of 1–10 Hz. To eliminate any tethering, a bidirectional Bluetooth Low Energy (BLE) link is established between the neural interface device and an external data receiver (i.e., USB dongle) to receive optogenetic configuration parameters and send back recorded data. A graphical user interface (GUI) displays optogenetic stimuli controls and graphs recorded data in real time.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121612915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Scalable Modular Beamformers for Energy-Efficient MIMO Applications Using Correlation Technologies 使用相关技术的节能MIMO应用的可扩展模块化波束形成器

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194273

S. Wane, B. Kieniewicz, J. Sombrin, D. Bajon, †. P.Poilvert, †. C.-A.Tavernier, D. F. †. eV-Technologies, European Engineering, UK Consultancy

{"title":"Scalable Modular Beamformers for Energy-Efficient MIMO Applications Using Correlation Technologies","authors":"S. Wane, B. Kieniewicz, J. Sombrin, D. Bajon, †. P.Poilvert, †. C.-A.Tavernier, D. F. †. eV-Technologies, European Engineering, UK Consultancy","doi":"10.1109/WMCS58822.2023.10194273","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194273","url":null,"abstract":"A scalable beamformer module built using unitary $1 times 8$ sub-arrays integrating Antenna-in-Package (AiP) in a profile of 5mm pitch array is introduced. The $mathbf{1}times mathbf{8}$ module can be stacked either horizontally or vertically to create dynamic phased arrays of 8, 16, 32 or 64 elements horizontally or $mathbf{8}times mathbf{8},mathbf{16}times mathbf{16}$ or $mathbf{32}times mathbf{32}$. The unit is USB controlled and is bidirectional. Beams can be calibrated, and calibration stored in EEPROM for fast Look-Up-Table (LUT) access. The module offers 6-bit amplitude and 6-bit phase controls. The combined gain (when all elements sum up coherently) is 30dB for receive mode and 20dB for transmit mode. The module is capable of achieving $+mathbf{53}mathbf{dBm}$ EIRP when used in an $8 times 8$ configuration. The unit can switch seamlessly between TX and RX modes and has internal DC-DC converters for maximum efficiency. Multiple-Input Multiple-Output (MIMO) correlators are introduced for building scalable multi-beamforming front-end-modules (FEM) with embedded cognition. Unified mmWave and baseband correlation technologies using energy density and Error Vector Magnitude (EVM) metrics are introduced for low complexity cost-effective multi-beamforming systems. The combination of convolutional accelerators with analog signal processing for linking beam-selection algorithms to stochastic-wave-shaping (SWS) will foster new system architectures with critical functionalities including direction of arrival (DOA) estimation and secure communications.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125472475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Theoretical Bounds of the Self-Interference Cancellation-Bandwidth Integral in Full Duplex RF Front Ends 全双工射频前端自干扰抵消带宽积分的理论边界

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194280

D. Regev, Itamar Melamed, Nimrod Ginzberg, E. Cohen

{"title":"Theoretical Bounds of the Self-Interference Cancellation-Bandwidth Integral in Full Duplex RF Front Ends","authors":"D. Regev, Itamar Melamed, Nimrod Ginzberg, E. Cohen","doi":"10.1109/WMCS58822.2023.10194280","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194280","url":null,"abstract":"This paper studies the behavior of lumped self-interference cancellation (SIC) filters in simultaneous transmit-receive (STR) RF front ends. The crux that enables a different approach in this work for finding an optimal network solution is converting the SIC circuit design flow into an equivalent impedance-matching problem. As a result, we analyze a reflective SIC filter that complies with electric-balance duplexers utilizing known techniques. Bode, Fano, Matthaei, and others studied lumped network theory considerations and devised methodical steps for maximizing the impedance-matching bandwidth for reactive loads. Accordingly, a systematic approach that considers the analysis of the SIC-Bandwidth mutual relationship, and the optimal lumped networks, is detailed in this work. We indicate that the Chebyshev band-pass filter can provide optimal and lossless SIC filter performance, which is crucial for the overall STR performance. The realistic RF front-end in this work, which includes a simulated quadrature hybrid, and a measured Wi-Fi antenna with VSWR of 3:1, achieves > 40 dB of TX-RX isolation over 200 MHz around 5.5 GHz, utilizing a second order filter that employs only two realizable inductors.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128202354","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Cerebral Artery Stent on the Brain Neurons Activation under the Wireless Charging 无线充电下脑动脉支架对脑神经元激活的影响

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194267

Xiaolin Yang, F. Mir, Ji Chen

{"title":"Effect of Cerebral Artery Stent on the Brain Neurons Activation under the Wireless Charging","authors":"Xiaolin Yang, F. Mir, Ji Chen","doi":"10.1109/WMCS58822.2023.10194267","DOIUrl":"https://doi.org/10.1109/WMCS58822.2023.10194267","url":null,"abstract":"This study aims to investigate the impact of cerebral artery stent on the brain neuron activation under a wireless charging system. A simplified wireless charger model is developed and positioned in close proximity tothe head region. A cerebral artery stent is modeled and placed inside the brain vessels, and two distinct models are developed, one with the stent and one without it. To determine the electrical potential along a set of nerve fiber, Finite Element Method (FEM) based on the electromagnetic simulation software is employed. A high-frequency waveform is generated and scaled by the stimulus amplitude. Based on the potential distributions and stimulus waveform, the activation thresholds are obtained by setting stimulus amplitudes for the MRG (McIntyre-Richardson-Grill) myelinated fiber models. Results indicate thatthe presence of a cerebral artery stent can cause significant variations in the activation thresholds of brain neurons, up to 22%. As a result, it is imperative to consider the impact of cerebral artery stents on the activation thresholds of brain neurons under a wireless charging.","PeriodicalId":363264,"journal":{"name":"2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123257184","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Two-Port Characterization of Symmetric Varactors in 65-nm CMOS Process for Mixer Applications 用于混频器的65纳米CMOS工艺中对称变容管的双端口表征

2023 IEEE Texas Symposium on Wireless and Microwave Circuits and Systems (WMCS) Pub Date : 2023-04-19 DOI: 10.1109/WMCS58822.2023.10194281

Saad Azmeen-ur-Rahman, M. Hasna, S. Ekin, W. Choi

引用次数: 0