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A DC-110 GHz Ultra-Wideband Contiguous Triplexer Based on Capacitive Coupling Transition 基于电容耦合过渡的DC-110 GHz超宽带连续三工器
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-13 DOI: 10.1109/LMWT.2026.3673008
Jiayu Shao;Yinian Feng;Qiuyan Luo;Bo Zhang
{"title":"A DC-110 GHz Ultra-Wideband Contiguous Triplexer Based on Capacitive Coupling Transition","authors":"Jiayu Shao;Yinian Feng;Qiuyan Luo;Bo Zhang","doi":"10.1109/LMWT.2026.3673008","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3673008","url":null,"abstract":"In this letter, a DC-45–73–110 GHz contiguous triplexer based on capacitive coupling transition is proposed for ultra-wideband (UWB) spectrum stitching. The novel double-layer capacitive coupling structure utilizing suspended stripline (SSL) is introduced to effectively compensate the input impedance and extend operating bandwidth. Furthermore, to minimize the high-frequency insertion loss, a rectangular waveguide (RWG) is developed as the high-pass filter (HPF). For demonstration, the proposed triplexer is fabricated using computer numerical control (CNC) milling technology and Rogers 5880 substrate. Measured results show that the insertion loss is less than 5 dB over 0–110 GHz and the return loss is better than 10 dB, which are all good agreement with simulated ones.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1422-1425"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903245","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 Integrated Broadband Lumped-Element Marchand Balun With Arbitrary Impedance Transformation and Arbitrary Coupling-Coefficient 具有任意阻抗变换和任意耦合系数的集成宽带集总元马尔尚巴伦
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-03 DOI: 10.1109/LMWT.2026.3678946
Kyutaek Oh;Ilku Nam;Ockgoo Lee
{"title":"An Integrated Broadband Lumped-Element Marchand Balun With Arbitrary Impedance Transformation and Arbitrary Coupling-Coefficient","authors":"Kyutaek Oh;Ilku Nam;Ockgoo Lee","doi":"10.1109/LMWT.2026.3678946","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3678946","url":null,"abstract":"This letter introduces a broadband lumped-element Marchand balun (MB) with arbitrary impedance transformation and arbitrary inductive coupling-coefficient (<inline-formula> <tex-math>$k_{L}$ </tex-math></inline-formula>). Considering on-chip implementation, the lumped-element MB can replace bulky coupled transmission lines (TLs) of conventional coupled-TL MB. Furthermore, analytical expressions for the lumped-element counterparts have been derived for arbitrary <inline-formula> <tex-math>$k_{L}$ </tex-math></inline-formula>, independent of the impedance transformation ratio. By analyzing <inline-formula> <tex-math>$k_{L}$ </tex-math></inline-formula>, the lumped-element MB capable of operating in a broadband range can be designed. Based on these analyses, the proposed lumped-element MB was fabricated using a 65-nm bulk CMOS process. Measurement results demonstrate an insertion loss of less than 6 dB (including the 3-dB power splitting loss), an amplitude imbalance (AI) of less than 0.52 dB, and a phase imbalance (PI) (i.e., deviation from 180°) of less than 3.6° over a wide frequency range of 3–13 GHz.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1442-1445"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148902737","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
High-Accuracy Polynomial Model Training for RF Power Amplifiers: Leveraging FISTA Unrolling 射频功率放大器的高精度多项式模型训练：利用FISTA展开
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-08 DOI: 10.1109/LMWT.2026.3679995
Zhilin Ren;John Dooley;Yhonatan Kvich;Jonathan Guimaraes Ribeiro;Aidan Edward Colgan;Yonina C. Eldar;Miriam Leeser
{"title":"High-Accuracy Polynomial Model Training for RF Power Amplifiers: Leveraging FISTA Unrolling","authors":"Zhilin Ren;John Dooley;Yhonatan Kvich;Jonathan Guimaraes Ribeiro;Aidan Edward Colgan;Yonina C. Eldar;Miriam Leeser","doi":"10.1109/LMWT.2026.3679995","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3679995","url":null,"abstract":"Power amplifier (PA) behavioral modeling, incorporating nonlinearity and memory effects, provides the basis for predistorters and accurate base station models for analyzing cellular network coverage. In this letter, we present two fast iterative shrinkage and thresholding algorithm (FISTA) approaches to PA behavioral modeling: an FISTA-based and a learnable FISTA-based method for parameter estimation of a polynomial model. FISTA addresses sparsity-regularized linear inverse problems with low complexity and fast convergence, enabling the efficient feature selection in PA modeling. Both approaches are experimentally validated using a 100-MHz bandwidth signal. The proposed coefficient extraction techniques demonstrate superior accuracy and speed while maintaining the computational efficiency compared with commonly used models like the memory polynomial (MP), generalized MP (GMP), and popular neural network (NN) models.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1482-1485"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11477893","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148902854","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
Co-Designed Quasi-Reflectionless Low-Noise Amplifier With Bandpass Filter and RF Switching Functionalities 具有带通滤波器和射频开关功能的准无反射低噪声放大器
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-01 DOI: 10.1109/LMWT.2026.3676313
Steven Matthew Cheng;Andrés Fontana;Dimitra Psychogiou
{"title":"Co-Designed Quasi-Reflectionless Low-Noise Amplifier With Bandpass Filter and RF Switching Functionalities","authors":"Steven Matthew Cheng;Andrés Fontana;Dimitra Psychogiou","doi":"10.1109/LMWT.2026.3676313","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3676313","url":null,"abstract":"In this letter, a reflectionless low-noise amplifier (LNA) filter (RLNAF) is presented, incorporating four distinct functions: 1) filtering; 2) reflection cancellation; 3) low-noise amplification; and 4) RF switching within a single component. It is comprised of a transmissive path and two absorptive paths. Specifically, a complex-termination methodology is applied to the transmissive path incorporating a bandpass filter (BPF) and LNA functionalities, removing the need for additional interstage matching networks (MNs). The absorptive paths are composed of a bandstop filter terminated with a loading resistor in one port to selectively dissipate the out-of-band reflected RF signals. Moreover, switch-off functionality is demonstrated by reconfiguring the bias of the transistor. For proof-of-concept validation purposes, two RLNAF prototypes are designed, manufactured, and measured at C-band. The RF characteristics are given as follows: RLNAF I: <inline-formula> <tex-math>$f_{cen} = 4.65$ </tex-math></inline-formula> GHz, gain = 15.8 dB, noise figure (NF) = 2.07 dB, and quasi-reflectionless characteristics better than 10 dB from DC to 4.27 and 4.34 GHz to 6.42 GHz and at least 9.8 dB from 4.27 to 4.34 GHz; RLNAF II: <inline-formula> <tex-math>$f_{cen} = 3.7$ </tex-math></inline-formula> GHz, gain = 15.3 dB, NF = 1.09 dB, and quasi-reflectionless characteristics better than 10 dB from DC to 4.75 and 5.75 GHz to 7.03 GHz and at least 6 dB from 4.75 to 5.75 GHz.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1490-1493"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=11468366","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148902858","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
Terahertz Chip Interconnects Based on Beam-Lead Structures 基于导束结构的太赫兹芯片互连
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-23 DOI: 10.1109/LMWT.2026.3682397
Binbin Ma;Shixiong Liang;Yi Wu;Yang Yu;Sheng Li;Wenwei Wang;Meng Zhang;Yang Zhao;Ming Yin;Kaixue Ma
{"title":"Terahertz Chip Interconnects Based on Beam-Lead Structures","authors":"Binbin Ma;Shixiong Liang;Yi Wu;Yang Yu;Sheng Li;Wenwei Wang;Meng Zhang;Yang Zhao;Ming Yin;Kaixue Ma","doi":"10.1109/LMWT.2026.3682397","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3682397","url":null,"abstract":"This work suggests using low-loss beam-lead technology instead of wire bonding to prevent performance degradation in THz chip interconnects. Full 3-D finite-element method (FEM) simulations and lumped-element analysis indicate the parasitic reduction process, proving this structure’s superiority. Comparative measurements were taken in four frequency bands: 170–220 GHz, 240–320 GHz, 420–470 GHz, and 500–700 GHz. Experimental results show that the beam-lead interconnection substantially reduces insertion loss by approximately 0.5 dB in the 170–320 GHz range. More crucially, the performance advantage increases as the frequency rises to higher THz frequencies. In the 500–700 GHz range, beam-lead technology outperforms wire bonding by about 3 dB due to reduced inductive degradation. This study shows that beam-lead technology can connect future terahertz (THz) integrated systems with high-performance and wideband connections.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1450-1453"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148902982","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
Dielectric Window Design Based on Neural Network and Particle Swarm Optimization 基于神经网络和粒子群优化的介电窗设计
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-07-27 DOI: 10.1109/LMWT.2026.3714575
Xiufang Wang;Yansha Wei;Tailai Ni;Hao Wang;Bangji Wang;Qingxiang Liu
{"title":"Dielectric Window Design Based on Neural Network and Particle Swarm Optimization","authors":"Xiufang Wang;Yansha Wei;Tailai Ni;Hao Wang;Bangji Wang;Qingxiang Liu","doi":"10.1109/LMWT.2026.3714575","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3714575","url":null,"abstract":"This letter proposes a novel X-band over-mode high-power dielectric window and develops an automated optimization framework combining neural networks with particle swarm optimization (PSO). Neural networks are employed to model the S-parameters and window electric field intensity, enabling their synergistic optimization. While ensuring excellent reflection characteristics, the proposed approach effectively explores designs with lower electric field levels. Moreover, by incorporating a model iteration update mechanism, the framework significantly reduces the reliance on full-wave electromagnetic (EM) simulations while maintaining optimization reliability. Optimization results show that the designed dielectric window exhibits reflection levels below −30 dB across 9.85–10.15 GHz, transmission efficiency above 99.9%, and the calculated peak power-handling capability reaches 13.1 MW. Furthermore, the window was fabricated and experimentally tested, confirming its potential for engineering applications.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1458-1461"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903004","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
Design of a Miniaturized High-Power Gysel Divider Based on GaN-on-SiC IPD Technology 基于GaN-on-SiC IPD技术的小型化大功率陀螺分路器设计
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-03-30 DOI: 10.1109/LMWT.2026.3676255
Shuaishuai Li;Tiancheng Zhang;Mengmeng Li;Yujin Zhou;Jun Zhou;Dazhi Ding
{"title":"Design of a Miniaturized High-Power Gysel Divider Based on GaN-on-SiC IPD Technology","authors":"Shuaishuai Li;Tiancheng Zhang;Mengmeng Li;Yujin Zhou;Jun Zhou;Dazhi Ding","doi":"10.1109/LMWT.2026.3676255","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3676255","url":null,"abstract":"The proposed Gysel power divider simultaneously achieves high-power handling and miniaturization. A coupled-line pair is introduced to modify the Gysel divide’s structure, enabling the application of <inline-formula> <tex-math>$pi $ </tex-math></inline-formula>-type lumped units and bridged T-coil equivalent circuits for miniaturization based on integrated passive device (IPD) technology. Several key thermal strategies are implemented to achieve high power based on gallium nitride on silicon carbide (GaN-on-SiC). In addition, electrical and thermal measurements demonstrate superior performance. It was demonstrated that the prototype had a compact size of <inline-formula> <tex-math>$0.1times 0.05$ </tex-math></inline-formula> (<inline-formula> <tex-math>$lambda _{mathrm {g}}times lambda _{mathrm {g}}$ </tex-math></inline-formula> at <inline-formula> <tex-math>$f_{0}$ </tex-math></inline-formula>) and excellent thermal dissipation capability with power handling capacity exceeding 40 W, exhibiting significant potential for engineering applications.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1410-1413"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903034","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
Millimeter-Wave Radar-Based Tracheal Respiratory Sound (rTS) Monitoring 基于毫米波雷达的气管呼吸声监测
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-02 DOI: 10.1109/LMWT.2026.3678917
Yu Rong;Wylie Standage-Beier;Jesus Antonio Sanchez-Perez;Daniel W. Bliss
{"title":"Millimeter-Wave Radar-Based Tracheal Respiratory Sound (rTS) Monitoring","authors":"Yu Rong;Wylie Standage-Beier;Jesus Antonio Sanchez-Perez;Daniel W. Bliss","doi":"10.1109/LMWT.2026.3678917","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3678917","url":null,"abstract":"Conventional bio-radar systems rely solely on gross body motion estimation to understand respiratory activity. However, such methods are fundamentally limited at any given moment; the processed phase signal cannot be reliably mapped to a specific phase of the breathing cycle. Furthermore, involuntary body movements introduce motion artifacts that compromise the integrity of the estimated respiratory patterns, hindering their potential diagnostic usage. In this work, we extend the capabilities of traditional bio-radar systems by introducing tracheal respiratory sound monitoring. By leveraging high-frequency acoustic features embedded in the radar signal, we resolve the inherent phase ambiguity, enabling precise identification of inhalation and exhalation phases. Additionally, we demonstrate, for the first time, accurate estimation of the respiratory flow waveform from radar signals. This unified approach, using a single millimeter-wave (mmWave) radar sensor, enables the extraction of multiple respiratory biomarkers—including breathing rate, motion pattern, breathing phase, and airflow dynamics.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1538-1541"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903158","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 Pulse-Operated Nonlinear Distortion Characterization Module for Millimeter-Wave Power Amplifiers With On-Chip Delay Alignment 一种用于片上延迟对准毫米波功率放大器的脉冲操作非线性失真表征模块
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-02 DOI: 10.1109/LMWT.2026.3679025
Yaojia Fan;Fei You;Longhao Li;Yingjie Liu;Yin Chen;Zehua Xiao;Songbai He
{"title":"A Pulse-Operated Nonlinear Distortion Characterization Module for Millimeter-Wave Power Amplifiers With On-Chip Delay Alignment","authors":"Yaojia Fan;Fei You;Longhao Li;Yingjie Liu;Yin Chen;Zehua Xiao;Songbai He","doi":"10.1109/LMWT.2026.3679025","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3679025","url":null,"abstract":"This letter introduces a low-power, pulse-operated CMOS module for characterizing the nonlinear distortions of Ka-band power amplifiers (PAs). Implemented in 65-nm CMOS, the core design combines power-adaptive, delay-adaptive, and control units that extract PA nonlinear distortion to optimize linearizer feedback, thereby eliminating amplitude alignment requirements and overcoming the conventional limitations of high complexity and power consumption. Measurement results demonstrate that the proposed module achieves a minimum adjacent channel power ratio (ACPR) better than −40 dBc and a minimum normalized mean square error (NMSE) better than −25 dB in characterizing sensitivity, while consuming only 17.6 mW of power (core circuit only). These results meet the linearity optimization requirements for millimeter-wave (mmWave) band PAs, offering a pathway toward lower power consumption, enhanced self-adaptability, and lightweight PA linearization.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1518-1521"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148903180","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 Miniaturized, Self-Packaged Dual-Band Bandpass Filter Based on SIW Mixed-Mode Cavities 基于SIW混合模腔的小型化自封装双带带通滤波器
IF 3.4
IEEE microwave and wireless technology letters Pub Date : 2026-09-01 Epub Date: 2026-04-02 DOI: 10.1109/LMWT.2026.3677404
Fang Zhu;Zhao Zhang;Yufeng Yu;Xin Zhao
{"title":"A Miniaturized, Self-Packaged Dual-Band Bandpass Filter Based on SIW Mixed-Mode Cavities","authors":"Fang Zhu;Zhao Zhang;Yufeng Yu;Xin Zhao","doi":"10.1109/LMWT.2026.3677404","DOIUrl":"https://doi.org/10.1109/LMWT.2026.3677404","url":null,"abstract":"This letter presents a miniaturized, self-packaged dual-band bandpass filter (DBBPF) based on substrate integrated waveguide (SIW) mixed-mode cavities (MMCs). The proposed design establishes the dual passbands by exploiting the TEM<sub>100</sub> and FTE<sub>101</sub> modes of the MMCs, while employing a stripline feeding scheme to suppress all TE modes, thereby extending the stopband width and the achievable frequency ratio range. Moreover, by introducing a slotline at the center of the coupling window, independent control of the internal coupling for each mode is achieved. A prototype filter centered at 10 and 12.5 GHz is designed, fabricated, and measured. Good agreement is observed between the simulated and measured results, validating the proposed design.","PeriodicalId":73297,"journal":{"name":"IEEE microwave and wireless technology letters","volume":"36 9","pages":"1386-1389"},"PeriodicalIF":3.4,"publicationDate":"2026-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"148902954","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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