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A Dual-Mode CMOS VCO Using Hybridized Localized Surface Plasmon Resonator 使用杂化局部表面等离子体谐振器的双模 CMOS VCO
IEEE microwave and wireless technology letters Pub Date : 2025-02-13 DOI: 10.1109/LMWT.2025.3535757
Shuyang Zhang;Guoqing Dong;Yizhu Shen;Sanming Hu
{"title":"A Dual-Mode CMOS VCO Using Hybridized Localized Surface Plasmon Resonator","authors":"Shuyang Zhang;Guoqing Dong;Yizhu Shen;Sanming Hu","doi":"10.1109/LMWT.2025.3535757","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3535757","url":null,"abstract":"An on-chip mode-switchable hybridized localized surface plasmon resonator (HLSPR) is proposed to realize a dual-mode voltage-controlled oscillator (VCO). Different from conventional localized surface plasmon resonator (LSPR) with limited available modes, the proposed HLSPR offers rich intrinsic resonate modes, which can enlarge the tuning ranges or frequency bands of the VCO. A switch is applied to the slit of the HLSPR to electrically control resonate modes and frequencies. Moreover, capacitors paralleled to the HLSPR can naturally avoid mode ambiguity. The HLSPR-based dual-mode VCO is prototyped in a 180-nm CMOS process. By integrating HLSPR with active circuits, the K-band VCO achieves a phase noise (PN) of -109.5 dBc/Hz @ 1-MHz offset.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"456-459"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840009","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
Cross-Coupling Matrix Reconfiguration Using the Levenberg–Marquardt Algorithm on Orthogonal Groups 在正交群上使用 Levenberg-Marquardt 算法进行交叉耦合矩阵重构
IEEE microwave and wireless technology letters Pub Date : 2025-02-13 DOI: 10.1109/LMWT.2025.3536502
Xiyuan Wang;Hai Ding;Yingjie Di
{"title":"Cross-Coupling Matrix Reconfiguration Using the Levenberg–Marquardt Algorithm on Orthogonal Groups","authors":"Xiyuan Wang;Hai Ding;Yingjie Di","doi":"10.1109/LMWT.2025.3536502","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3536502","url":null,"abstract":"This letter introduces a Levenberg-Marquardt (LM) algorithm on the orthogonal group to reconfigure the coupling matrix (CM) for cross-coupled resonator filters of general topology. By leveraging the framework of Lie groups and the exponential map, we perform LM steps locally in the linear space of skew-symmetric matrices, the Lie algebra associated with the orthogonal group. In each LM step, we derive and explicitly formulate a regularized least-squares (LSs) problem in matrix-vector form, and then map the solution back to the orthogonal matrix to transform the CM toward the one with the desired structure. In addition, we integrate the proposed LM algorithm with homotopy optimization to enhance global convergence, particularly for lossy CM reconfiguration. The proposed algorithm demonstrates fast convergence and high accuracy, as evidenced by the results of filter synthesis and fabrication.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"380-383"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840041","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
IEEE Microwave and Wireless Technology Letters publication IEEE微波与无线技术通讯出版
IEEE microwave and wireless technology letters Pub Date : 2025-02-13 DOI: 10.1109/LMWT.2025.3533801
{"title":"IEEE Microwave and Wireless Technology Letters publication","authors":"","doi":"10.1109/LMWT.2025.3533801","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3533801","url":null,"abstract":"","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 2","pages":"C2-C2"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10884630","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143403762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
IEEE Microwave and Wireless Technology Letters Information for Authors IEEE微波与无线技术通讯作者信息
IEEE microwave and wireless technology letters Pub Date : 2025-02-13 DOI: 10.1109/LMWT.2025.3533799
{"title":"IEEE Microwave and Wireless Technology Letters Information for Authors","authors":"","doi":"10.1109/LMWT.2025.3533799","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3533799","url":null,"abstract":"","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 2","pages":"C3-C3"},"PeriodicalIF":0.0,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10884631","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143422843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A DC Combining-Free Miniaturized Mirror-Like Rectenna System With Full-Wave Rectification for Robust Wireless Power Transfer in IoT at 2.45 GHz 基于全波整流的无直流组合小型化镜面整流系统，用于2.45 GHz的物联网无线电力传输
IEEE microwave and wireless technology letters Pub Date : 2025-02-11 DOI: 10.1109/LMWT.2025.3538629
Deepak Sood;Manoj Kumar;Jagpal Singh Ubhi
{"title":"A DC Combining-Free Miniaturized Mirror-Like Rectenna System With Full-Wave Rectification for Robust Wireless Power Transfer in IoT at 2.45 GHz","authors":"Deepak Sood;Manoj Kumar;Jagpal Singh Ubhi","doi":"10.1109/LMWT.2025.3538629","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3538629","url":null,"abstract":"This letter presents a planar, fully integrated multisector mirror-like rectenna array designed for efficient microwave power transfer to charge the Internet of Things (IoT) sensor nodes wirelessly. The proposed system addresses limited power harvesting and dc combining challenges by directly integrating four radially arranged endfire rectifying antenna (EFRA) elements surrounding a centrally located bore-sight rectifying antenna (BSRA) element on both sides of the proposed system like a mirror without using dc combining networks. The proposed design facilitates direct conjugate matching of the system to reduce the insertion losses, enabling a compact and fully integrated design. This provides nearly 3-D coverage and makes it a good candidate for IoT applications. The mirror-like rectenna system (MLRS) system can harvest approximately 1400 mV of open dc voltage in any orientation and direction, sufficient to recharge and operate low-power IoT sensor nodes. The experimental setup further validated these results, demonstrating the system’s potential as a robust solution for wireless power transfer (WPT) in smart applications.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"448-451"},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840017","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
Wide Range and Accurate Displacement Measurement Technique Using FMCW Radar FMCW雷达大范围精确位移测量技术
IEEE microwave and wireless technology letters Pub Date : 2025-02-11 DOI: 10.1109/LMWT.2025.3538483
Weitao Li;Yuyong Xiong;Sicheng Hong;Zhaoyu Liu;Zhike Peng
{"title":"Wide Range and Accurate Displacement Measurement Technique Using FMCW Radar","authors":"Weitao Li;Yuyong Xiong;Sicheng Hong;Zhaoyu Liu;Zhike Peng","doi":"10.1109/LMWT.2025.3538483","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3538483","url":null,"abstract":"The displacement measurement technique based on FMCW radar has shown great application potential. However, the measurement range of the existing method is limited by the range resolution of radar. This letter proposes a phase compensation method to realize the wide range and accurate displacement measurement across multiple range bins. It works by demodulating the baseband signal by using the estimated distance of the target at different times to eliminate the additional phase modulation caused by the target crossing the range bins. Simulation and experiments demonstrate that the proposed method can accurately extract the wide-range displacement.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"492-495"},"PeriodicalIF":0.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840008","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
A Dual-Core Dual-Mode Class-F VCO With Wide Frequency Tuning Range Using Wide Inductance-Switching-Range Inductor 采用宽电感开关量程电感的双核双模宽频率调谐范围f类压控振荡器
IEEE microwave and wireless technology letters Pub Date : 2025-02-10 DOI: 10.1109/LMWT.2025.3536158
Yaru Hou;Runlong Li;Pei-Ling Chi;Tao Yang
{"title":"A Dual-Core Dual-Mode Class-F VCO With Wide Frequency Tuning Range Using Wide Inductance-Switching-Range Inductor","authors":"Yaru Hou;Runlong Li;Pei-Ling Chi;Tao Yang","doi":"10.1109/LMWT.2025.3536158","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3536158","url":null,"abstract":"A novel dual-core dual-mode class-F voltage-controlled oscillator (VCO) with wide frequency tuning range (TR) is proposed in this letter. It consists of two coupled parallel “8”-shaped inductor and two crossed-coupled VCO cores. To increase the TR of the proposed VCO without adding additional footprint size, a single-turn common-mode inductor is embedded inside the “8”-shaped inductor. By controlling the mode switches, the inductor can work in different modes with large inductance difference, realizing large VCO TR consequently. Then, the two coupled inductors were engineered to form the fundamental and third harmonic resonances, respectively, thereby producing a pseudo-square wave output waveform and realizing class-F operation. With the proposed configuration, the phase noise (PN) of the proposed VCO can be significantly reduced without increasing VCO core size. To demonstrate the proposed idea, a VCO prototype is fabricated in a 65-nm CMOS process with a core size of <inline-formula> <tex-math>$1.235times 0.8$ </tex-math></inline-formula> mm. It achieves a wide frequency TR from 2.84 to 7.04 GHz. The measured PN at 1-MHz offset is from −123.9 to −113.1 dBc/Hz, demonstrating an FOMT of 196.0–201.3 dBc/Hz.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"460-463"},"PeriodicalIF":0.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840014","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 Improved Compressive Sensing-Based Model for Efficient Analysis of Monostatic Electromagnetic Scattering Problems 一种改进的基于压缩感知的单稳态电磁散射问题有效分析模型
IEEE microwave and wireless technology letters Pub Date : 2025-02-10 DOI: 10.1109/LMWT.2025.3537296
Qi Qi;Yunuo Fan;Xinyuan Cao;Yi Liu;Meng Kong;Zhixiang Huang;Xianliang Wu
{"title":"An Improved Compressive Sensing-Based Model for Efficient Analysis of Monostatic Electromagnetic Scattering Problems","authors":"Qi Qi;Yunuo Fan;Xinyuan Cao;Yi Liu;Meng Kong;Zhixiang Huang;Xianliang Wu","doi":"10.1109/LMWT.2025.3537296","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3537296","url":null,"abstract":"To further accelerate the analysis of monostatic electromagnetic (EM) scattering problems of objects, an improved compressive sensing (CS)-based model is proposed. First, an orthogonal subspace spanned by the wide-angle induced currents is identified by means of the wide-angle incident sources. Then, the sparse transform of the induced currents is replaced by the subspace projection. In addition, an optimal number of measurements is determined, only slightly larger than the dimension of the subspace. Finally, the recovery algorithm is simplified to the least-squares method to solve the resulting overdetermined system. Compared with the traditional CS-based model, the proposed model significantly improves the efficiency of the recovery step and optimizes both the requirement for and the way of determining the number of measurements.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"388-391"},"PeriodicalIF":0.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840079","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
A Balanced HTS Dual-Narrowband BPF Based on meta-HRRs With Highly Controllable Passbands 基于高可控通带元hrr的平衡HTS双窄带BPF
IEEE microwave and wireless technology letters Pub Date : 2025-02-10 DOI: 10.1109/LMWT.2025.3538161
Ruolin Wang;Haiwen Liu
{"title":"A Balanced HTS Dual-Narrowband BPF Based on meta-HRRs With Highly Controllable Passbands","authors":"Ruolin Wang;Haiwen Liu","doi":"10.1109/LMWT.2025.3538161","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3538161","url":null,"abstract":"In this letter, a miniaturized fourth-order balanced high-temperature superconducting (HTS) dual-narrowband filter using meta-hairpin ring resonators (meta-HRRs) is proposed. By virtue of the introduced quasi-lumped interdigital capacitors, inductive spiraled and meandering structures, a miniaturized size and multiple electric and magnetic (EM) transmission paths are generated. Thus, based on the features of sub wavelength size, highly controllable differential-mode (DM) dual mode, and EM coupling of meta-HRRs, a balanced dual-narrowband filter with attractive common-mode (CM) rejection and two controllable transmission zeros (TZs) is designed. For proof of concept, the experimental results of balanced circuit using HTS technology centering at 2.153 and 2.389 GHz are in good agreement with simulations, which validate the practicality of design concept.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"408-411"},"PeriodicalIF":0.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840078","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
Analog Predistortion Linearizer With Controllable Gain Expansion and Low AM/PM Conversion 具有可控增益扩展和低 AM/PM 转换功能的模拟预失真线性化器
IEEE microwave and wireless technology letters Pub Date : 2025-02-10 DOI: 10.1109/LMWT.2025.3533752
Pengyu Yu;Kwok-Keung Michael Cheng
{"title":"Analog Predistortion Linearizer With Controllable Gain Expansion and Low AM/PM Conversion","authors":"Pengyu Yu;Kwok-Keung Michael Cheng","doi":"10.1109/LMWT.2025.3533752","DOIUrl":"https://doi.org/10.1109/LMWT.2025.3533752","url":null,"abstract":"This letter introduces a novel analog predistorter (APD) design by using Schottky diodes and simple transmission lines only. The proposed linearizer exhibits controllable gain expansion profile (by adjusting bias voltage) and reduced AM/PM distortion (by inserting compensation capacitor). It also features high return loss and negligible power consumption. For verification, both simulated and measured AM/AM and AM/PM behaviors of the proposed APD are shown. Furthermore, the linearization of a class-AB power amplifier (PA) is evaluated using a 10-MHz 64-QAM LTE signal with a peak-to-average power ratio (PAPR) of 6.6 dB. At 6.9-dB OBO, the measured adjacent channel power ratio (ACPR) is found to improve from −31.9 dBc (without APD) to −40.5 dBc (with APD).","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"35 4","pages":"472-475"},"PeriodicalIF":0.0,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143840011","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
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