Pub Date : 2018-12-06DOI: 10.1109/ICMMT.2018.8563535
Yiming Zhang, Jia‐lin Li, Bingzhong Wang
In this work, a dual-band dual-polarized microstrip antenna array is presented with well cancelled self-interference resulting from the couplings within the array for co-time co-frequency full-duplex communications. The proposed single dual-band dual-polarized antenna uses multi-layer architecture, where feedings in shunt and in series are adopted for the two polarizations, respectively. A symmetrical array scheme collaborated with specified excitations is proposed for array applications to further improve the isolation level. A $pmb{1 times 4}$ array operated at 2.45 GHz and 3.5 GHz is designed for verification. Simulated results show that the isolations are higher than 60 dB for the two impedance bandwidths with $pmb{vert text{S}_{1,1}vert leq-10text{dB}}$.
在这项工作中，提出了一种双频双极化微带天线阵列，可以很好地消除由阵列内耦合引起的自干扰，用于同时同频全双工通信。本文提出的单双频双极化天线采用多层结构，两种极化分别采用并联馈电和串联馈电。为了进一步提高阵列的隔离水平，提出了一种指定激励的对称阵列方案。设计了一个工作在2.45 GHz和3.5 GHz的$pmb{1 times 4}$阵列进行验证。仿真结果表明，在$pmb{vert text{S}_{1,1}vert leq-10text{dB}}$两种阻抗带宽下，隔离度均大于60 dB。
{"title":"A Dual-Band Dual-Polarized Antenna Array with Improved Isolation","authors":"Yiming Zhang, Jia‐lin Li, Bingzhong Wang","doi":"10.1109/ICMMT.2018.8563535","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563535","url":null,"abstract":"In this work, a dual-band dual-polarized microstrip antenna array is presented with well cancelled self-interference resulting from the couplings within the array for co-time co-frequency full-duplex communications. The proposed single dual-band dual-polarized antenna uses multi-layer architecture, where feedings in shunt and in series are adopted for the two polarizations, respectively. A symmetrical array scheme collaborated with specified excitations is proposed for array applications to further improve the isolation level. A $pmb{1 times 4}$ array operated at 2.45 GHz and 3.5 GHz is designed for verification. Simulated results show that the isolations are higher than 60 dB for the two impedance bandwidths with $pmb{vert text{S}_{1,1}vert leq-10text{dB}}$.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134263741","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}
Pub Date : 2018-12-05DOI: 10.1109/ICMMT.2018.8563370
Danpeng Xie, Lei Zhu
This paper presents the newly-developed microstrip leaky-wave antennas (MLWA) with periodical loading of shorting pins. Working mechanisms of periodical loading of shorting pins on the first two operating modes in the microstrip line (MSL), i.e., fundamental EHo-mode and first higher-order Efh-mode are explicated at first. Then advanced functionalities of MLWAs under the proposed pin-loaded EHo-and Eflr-mode are explicitly exhibited. Brand-new features such as flexible selection of strip width, arbitrary-determined cut-off frequency, intrinsic dual symmetric main beams, etc., demonstrate the unique advantages of our pin-loaded technique utilized into various developments of advanced MLWAs.
{"title":"Microstrip Leaky-Wave Antennas (MLWA) with Periodical Loading of Shorting Pins","authors":"Danpeng Xie, Lei Zhu","doi":"10.1109/ICMMT.2018.8563370","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563370","url":null,"abstract":"This paper presents the newly-developed microstrip leaky-wave antennas (MLWA) with periodical loading of shorting pins. Working mechanisms of periodical loading of shorting pins on the first two operating modes in the microstrip line (MSL), i.e., fundamental EHo-mode and first higher-order Efh-mode are explicated at first. Then advanced functionalities of MLWAs under the proposed pin-loaded EHo-and Eflr-mode are explicitly exhibited. Brand-new features such as flexible selection of strip width, arbitrary-determined cut-off frequency, intrinsic dual symmetric main beams, etc., demonstrate the unique advantages of our pin-loaded technique utilized into various developments of advanced MLWAs.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123306905","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}
Pub Date : 2018-12-05DOI: 10.1109/ICMMT.2018.8563729
Yiming Tang, Yarning Bo, Lei Zhu, Ming Zhang, Yurnei Chang, Ye Ran
Many popular engineering problems, regarded as optimization problems, can be successfully solved with intelligent optimization algorithms, one of which is named Team Progress Algorithm (TPA). It is a novel kind of two-group evolutionary algorithm that simulates a team upgrading process with member learning, exploring and renewal, possessing the abilities of global, local and directional search. The intrinsic mechanism of TPA makes itself highly competitive in solving optimization problems. This paper mainly focuses on the development and improvement of TPA, including the original procedure, several perfection researches and their applications in microwave component and antenna designs. The numerical results and design examples in available literatures well verify the accuracy, efficiency and feasibility of TPA in the engineering optimizations of all kinds.
{"title":"Team Progress Algorithm and its Applications","authors":"Yiming Tang, Yarning Bo, Lei Zhu, Ming Zhang, Yurnei Chang, Ye Ran","doi":"10.1109/ICMMT.2018.8563729","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563729","url":null,"abstract":"Many popular engineering problems, regarded as optimization problems, can be successfully solved with intelligent optimization algorithms, one of which is named Team Progress Algorithm (TPA). It is a novel kind of two-group evolutionary algorithm that simulates a team upgrading process with member learning, exploring and renewal, possessing the abilities of global, local and directional search. The intrinsic mechanism of TPA makes itself highly competitive in solving optimization problems. This paper mainly focuses on the development and improvement of TPA, including the original procedure, several perfection researches and their applications in microwave component and antenna designs. The numerical results and design examples in available literatures well verify the accuracy, efficiency and feasibility of TPA in the engineering optimizations of all kinds.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131075246","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}
Pub Date : 2018-12-05DOI: 10.1109/ICMMT.2018.8563692
Shiyan Wang, Lei Zhu, Jianpeng Wang, Wen Wu
This paper introduces a kind of high-frequency liquid, transformer oil, which has low permittivity and dielectric loss. By employing this low-loss liquid material into structure of patch antenna, the property of frequency reconfigurability with high radiation efficiency is achieved. A two-layer substrate is here presented, where the upper one is made of homogeneous PTFE substrate for printing metal and the lower layer consists of a transparent container, including air and transformer oil layers. By varying the height of transformer oil layer, effective permittivity of the entire substrate underneath the patch can be tuned to realize frequency reconfiguration. Both linearly and circularly polarized (LP and CP) patch antenna prototypes are designed to verify the proposed methodology. The linearly polarized one is finally selected to be fabricated and tested. Measured results are found in reasonably good agreement with the simulated ones.
{"title":"Low-Loss Transformer Oil for Application in Frequency-Reconfigurable LP/CP Patch Antennas","authors":"Shiyan Wang, Lei Zhu, Jianpeng Wang, Wen Wu","doi":"10.1109/ICMMT.2018.8563692","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563692","url":null,"abstract":"This paper introduces a kind of high-frequency liquid, transformer oil, which has low permittivity and dielectric loss. By employing this low-loss liquid material into structure of patch antenna, the property of frequency reconfigurability with high radiation efficiency is achieved. A two-layer substrate is here presented, where the upper one is made of homogeneous PTFE substrate for printing metal and the lower layer consists of a transparent container, including air and transformer oil layers. By varying the height of transformer oil layer, effective permittivity of the entire substrate underneath the patch can be tuned to realize frequency reconfiguration. Both linearly and circularly polarized (LP and CP) patch antenna prototypes are designed to verify the proposed methodology. The linearly polarized one is finally selected to be fabricated and tested. Measured results are found in reasonably good agreement with the simulated ones.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"36 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115169301","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}
Pub Date : 2018-12-05DOI: 10.1109/ICMMT.2018.8563878
Yirning Tang, Lei Zhu, Bo Li, Y. Bo, Lijie Xu
A broadband band-stop filter with T-shape diaphragms loaded in a rectangular waveguide is described to obtain good stopband characteristics. Single- and double-diaphragm loading structures are taken into consideration, followed by analysis of different physical dimensions on the whole characteristics. The stop-bandwidth of double-diaphragm loaded filter can cover the single TE10 mode operation band of standard rectangular waveguide WR-62 with large stopband attenuation. In addition, the filter can be used for waveguide mode suppression in modern high-frequency circuits with metal shielding.
{"title":"Broadband Band-Stop Waveguide Filters with T-Shape Diaphragm","authors":"Yirning Tang, Lei Zhu, Bo Li, Y. Bo, Lijie Xu","doi":"10.1109/ICMMT.2018.8563878","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563878","url":null,"abstract":"A broadband band-stop filter with T-shape diaphragms loaded in a rectangular waveguide is described to obtain good stopband characteristics. Single- and double-diaphragm loading structures are taken into consideration, followed by analysis of different physical dimensions on the whole characteristics. The stop-bandwidth of double-diaphragm loaded filter can cover the single TE10 mode operation band of standard rectangular waveguide WR-62 with large stopband attenuation. In addition, the filter can be used for waveguide mode suppression in modern high-frequency circuits with metal shielding.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"94 6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131041171","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}
Pub Date : 2018-05-07DOI: 10.1109/ICMMT.2018.8563610
Cao Wan, Lingling Sun, G. Su, Xiangyu Lv, J. Wen, Xiang Wang
Base on 65nm CMOS process, a super-regenerative receiver (SRR) is proposed in this paper. By using a novel differential parallel inductor (DPI), the SRR realizes high sensitivity. The simulated results show that the sensitivity of the SRR is -90dBm, the 3dB bandwidth is 2.3GHz, and the gain is larger than 13.5dB in its range of the 3dB bandwidth. The power consumption is 10.4 mW while applying 1.2-V power supply. The core area is 0.013 mm2.
{"title":"A 280GHz Super Regenerative Receiver with Differential Parallel Inductor in 65nm CMOS","authors":"Cao Wan, Lingling Sun, G. Su, Xiangyu Lv, J. Wen, Xiang Wang","doi":"10.1109/ICMMT.2018.8563610","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563610","url":null,"abstract":"Base on 65nm CMOS process, a super-regenerative receiver (SRR) is proposed in this paper. By using a novel differential parallel inductor (DPI), the SRR realizes high sensitivity. The simulated results show that the sensitivity of the SRR is -90dBm, the 3dB bandwidth is 2.3GHz, and the gain is larger than 13.5dB in its range of the 3dB bandwidth. The power consumption is 10.4 mW while applying 1.2-V power supply. The core area is 0.013 mm2.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116950016","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}
Mulitipactor, caused by the interactions during electrons, electromagnetic fields and device materials in microwave components under vacuum, leads to the un-repairable damage to the on-orbit satellites and is still a bottle-neck problem for the high-reliability performance requirement. A novel multipactor simulation and analysis tool, which combines the full wave electromagnetic algorithm with the particle-in-cell method, is proposed for the visualization of the sophisticated physical evolution process and the prediction of the breakdown threshold of multipactor in practical EM systems. Based on the accurate description of Secondary Electron Emission(SEE) phenomenon through experimental measurements and numerical fitting, the electron multipaction principles and basic theories have been deeply studied. The numerical calculation and accurate threshold analysis of multipactor in practical components were realized. Experimental results match well with simulation results and the simulation error was less than 1.5dB, which lays the technology foundation for the study on the dielectric multipaction principle and numerical simulation.
{"title":"MSAT: A Novel Multipactor Simulation and Analysis Tool","authors":"Yun Li, W. Cui, Hongtai Zhang, Hongguang Wang, Yong-Dong Li, Jian-feng Zhang","doi":"10.1109/ICMMT.2018.8563759","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563759","url":null,"abstract":"Mulitipactor, caused by the interactions during electrons, electromagnetic fields and device materials in microwave components under vacuum, leads to the un-repairable damage to the on-orbit satellites and is still a bottle-neck problem for the high-reliability performance requirement. A novel multipactor simulation and analysis tool, which combines the full wave electromagnetic algorithm with the particle-in-cell method, is proposed for the visualization of the sophisticated physical evolution process and the prediction of the breakdown threshold of multipactor in practical EM systems. Based on the accurate description of Secondary Electron Emission(SEE) phenomenon through experimental measurements and numerical fitting, the electron multipaction principles and basic theories have been deeply studied. The numerical calculation and accurate threshold analysis of multipactor in practical components were realized. Experimental results match well with simulation results and the simulation error was less than 1.5dB, which lays the technology foundation for the study on the dielectric multipaction principle and numerical simulation.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121408406","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}
Pub Date : 2018-05-07DOI: 10.1109/ICMMT.2018.8563617
Min Li, F. Xu, K. Wu
A compact planar log-periodic dipole array (LPDA) antenna operating from 0.8 to 2 GHz with loading dielectric materials and top-loading techniques is proposed for high gain application and miniaturization of the antenna. The antenna is composed of top-loading dipoles and parallel stripline printed on a substrate dipoles periodically loading the Taconic CER-10 material which are placed on the both side of the antenna. Furthermore, in order to enhance the bandwidth performance effectively, a trapezoidal stub is also applied into the design as impedance matching techniques. The proposed antenna is especially suitable for the lower band of the antenna's operating frequency range. The simulated results of the antenna such as the gain and S parameter are given.
{"title":"A Modified Log-Periodic Dipole Array Antenna with Dielectric-Loaded and Top-Loading Techniques","authors":"Min Li, F. Xu, K. Wu","doi":"10.1109/ICMMT.2018.8563617","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563617","url":null,"abstract":"A compact planar log-periodic dipole array (LPDA) antenna operating from 0.8 to 2 GHz with loading dielectric materials and top-loading techniques is proposed for high gain application and miniaturization of the antenna. The antenna is composed of top-loading dipoles and parallel stripline printed on a substrate dipoles periodically loading the Taconic CER-10 material which are placed on the both side of the antenna. Furthermore, in order to enhance the bandwidth performance effectively, a trapezoidal stub is also applied into the design as impedance matching techniques. The proposed antenna is especially suitable for the lower band of the antenna's operating frequency range. The simulated results of the antenna such as the gain and S parameter are given.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132459547","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}
Pub Date : 2018-05-07DOI: 10.1109/ICMMT.2018.8563599
Tianyu Wang, W. Che, Haidong Chen, Wei Li
Taking a certain type of Ku-band fire-control radar tracking system as example, the monopulse tracking radar standard library and simulation system are investigated and developed based on Simulink. Under the condition of true input value of flying target, the effectiveness and reliability of signal generator, clutter, Moving Target Indication (MTI), Moving Target Detection (MTD) and tracking module are verified. The actual measured data and simulation data are compared, the error is less than 1.5%. The operational frequency of the radar is 15 GHz and the bandwidth is 2 GHz.
{"title":"Modeling and Verification of Ku-Band Tracking Radar System","authors":"Tianyu Wang, W. Che, Haidong Chen, Wei Li","doi":"10.1109/ICMMT.2018.8563599","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563599","url":null,"abstract":"Taking a certain type of Ku-band fire-control radar tracking system as example, the monopulse tracking radar standard library and simulation system are investigated and developed based on Simulink. Under the condition of true input value of flying target, the effectiveness and reliability of signal generator, clutter, Moving Target Indication (MTI), Moving Target Detection (MTD) and tracking module are verified. The actual measured data and simulation data are compared, the error is less than 1.5%. The operational frequency of the radar is 15 GHz and the bandwidth is 2 GHz.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130137867","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}
Pub Date : 2018-05-07DOI: 10.1109/ICMMT.2018.8563849
Zhuoluo Wang, Jiafu Wang, Yang Shen, Ya Fan, Cuilian Xu, S. Qu
In strong group velocity dispersion (GVD) medium, signal waveform will distort owing to different phase velocity with responding to different frequencies. Whereas, limited by causality, strong dispersion is always accompanied by high losses. Because group velocity as a function of frequency of spoof surface plasmon polaritons (SPPs) is rich and easy to be manipulated by the size and geometry, so by engineering the dispersion characteristics of SPPs strong dispersive group velocity and high-efficiency reflectivity will be satisfied at certain band simultaneously, in order to realize high-efficiency real-time reflective waveform modulator.
{"title":"High-Efficiency Real-Time Reflective Waveform Modulator Based on Dispersion Engineering of Spoof Surface Plasmon Polaritons","authors":"Zhuoluo Wang, Jiafu Wang, Yang Shen, Ya Fan, Cuilian Xu, S. Qu","doi":"10.1109/ICMMT.2018.8563849","DOIUrl":"https://doi.org/10.1109/ICMMT.2018.8563849","url":null,"abstract":"In strong group velocity dispersion (GVD) medium, signal waveform will distort owing to different phase velocity with responding to different frequencies. Whereas, limited by causality, strong dispersion is always accompanied by high losses. Because group velocity as a function of frequency of spoof surface plasmon polaritons (SPPs) is rich and easy to be manipulated by the size and geometry, so by engineering the dispersion characteristics of SPPs strong dispersive group velocity and high-efficiency reflectivity will be satisfied at certain band simultaneously, in order to realize high-efficiency real-time reflective waveform modulator.","PeriodicalId":190601,"journal":{"name":"2018 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131782009","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}
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