Pub Date : 2015-08-06DOI: 10.1109/GSMM.2015.7175109
C. Hannachi, E. Moldovan, S. Tatu, Z. Ouardirhi
Direct conversion quadrature demodulator analysis based on recently fabricated V-band six-port circuit operating over 60 GHz band is presented in this paper. In order to obtain realistic system simulation results, the computer model of the six-port demodulator is implemented using Advanced Design System (ADS) software and S-parameter measurements of the integrated six-port circuit on thin alumina substrate. The performance of the proposed model is characterized in terms of the Error Vector Magnitude (EVM) for various M-PSK/M-QAM modulated signals. Very good demodulation results have been obtained over a 5 GHz band, from 60 to 65 GHz. These results provide further evidence that the six-port quadrature demodulator is a successful approach for homodyne or heterodyne transceivers designed for high-speed short-range wireless communication systems, such as today's WiGig or future millimeter wave 5G.
{"title":"V-band six-port quadrature demodulator : Error Vector Magnitude analysis","authors":"C. Hannachi, E. Moldovan, S. Tatu, Z. Ouardirhi","doi":"10.1109/GSMM.2015.7175109","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175109","url":null,"abstract":"Direct conversion quadrature demodulator analysis based on recently fabricated V-band six-port circuit operating over 60 GHz band is presented in this paper. In order to obtain realistic system simulation results, the computer model of the six-port demodulator is implemented using Advanced Design System (ADS) software and S-parameter measurements of the integrated six-port circuit on thin alumina substrate. The performance of the proposed model is characterized in terms of the Error Vector Magnitude (EVM) for various M-PSK/M-QAM modulated signals. Very good demodulation results have been obtained over a 5 GHz band, from 60 to 65 GHz. These results provide further evidence that the six-port quadrature demodulator is a successful approach for homodyne or heterodyne transceivers designed for high-speed short-range wireless communication systems, such as today's WiGig or future millimeter wave 5G.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125728710","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175441
M. Chung, D. Je, Seung-Rae Kim
A wideband double-ridged pyramidal horn has been designed and fabricated for a phase calibration system, which is being developed for VLBI (Very Long Baseline Interferometry) multi-band receiver system. The operating frequency band of the horn covers across 22 and 129 GHz. Double-ridged waveguide structure has been employed for the ultra-wideband application. Measured return loss is better than 9.4 dB and measurements of radiation patterns are compared with simulations from 22 to 110 GHz.
{"title":"Development of a wideband double-ridged pyramidal horn for a 22∼129 GHz band phase calibration system","authors":"M. Chung, D. Je, Seung-Rae Kim","doi":"10.1109/GSMM.2015.7175441","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175441","url":null,"abstract":"A wideband double-ridged pyramidal horn has been designed and fabricated for a phase calibration system, which is being developed for VLBI (Very Long Baseline Interferometry) multi-band receiver system. The operating frequency band of the horn covers across 22 and 129 GHz. Double-ridged waveguide structure has been employed for the ultra-wideband application. Measured return loss is better than 9.4 dB and measurements of radiation patterns are compared with simulations from 22 to 110 GHz.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115341086","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175457
J. Kokkoniemi, Janne Lehtomauki, M. Juntti
Frequency domain scattering loss on small particles in terahertz frequency band (0.1-10 THz) is addressed. The wavelengths in THz band are short enough to enable scattering on small particles in the atmosphere. Rayleigh theories are utilized in estimating the scattering loss and it is shown that in proper conditions small particle scattering causes significant losses in the THz band. The small particle scattering is mainly an issue on the higher end of the THz band. This is due to the strong frequency dependency of the scattering. The effect of the scattering loss to the received signal strength is shown in the results.
{"title":"Frequency domain scattering loss in THz band","authors":"J. Kokkoniemi, Janne Lehtomauki, M. Juntti","doi":"10.1109/GSMM.2015.7175457","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175457","url":null,"abstract":"Frequency domain scattering loss on small particles in terahertz frequency band (0.1-10 THz) is addressed. The wavelengths in THz band are short enough to enable scattering on small particles in the atmosphere. Rayleigh theories are utilized in estimating the scattering loss and it is shown that in proper conditions small particle scattering causes significant losses in the THz band. The small particle scattering is mainly an issue on the higher end of the THz band. This is due to the strong frequency dependency of the scattering. The effect of the scattering loss to the received signal strength is shown in the results.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"64 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116959093","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175112
A. Generalov, D. Lioubtchenko, A. Raisanen
A novel phase shifter based on high impedance surface (HIS) with carbon nanotube (CNT) membrane MEMS is proposed. The CNT MEMS HIS is integrated into a dielectric rod waveguide (DRW) so that the CNT membrane acts as a movable ground plane. We present a novel fabrication method of the phase shifter being significantly simpler than those previously used. The device performance is verified through numerical simulations that show a theoretical phase shift of 260° with a 7 volt bias applied. So far we have experimentally demonstrated a CNT membrane varactor, where the distance of the CNT membrane and metal patches changed from 2 μm to 0.4 μm with a 10 volt bias.
{"title":"Reconfigurable mm-wave phase shifter based on high impedance surface with carbon nanotube membrane MEMS","authors":"A. Generalov, D. Lioubtchenko, A. Raisanen","doi":"10.1109/GSMM.2015.7175112","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175112","url":null,"abstract":"A novel phase shifter based on high impedance surface (HIS) with carbon nanotube (CNT) membrane MEMS is proposed. The CNT MEMS HIS is integrated into a dielectric rod waveguide (DRW) so that the CNT membrane acts as a movable ground plane. We present a novel fabrication method of the phase shifter being significantly simpler than those previously used. The device performance is verified through numerical simulations that show a theoretical phase shift of 260° with a 7 volt bias applied. So far we have experimentally demonstrated a CNT membrane varactor, where the distance of the CNT membrane and metal patches changed from 2 μm to 0.4 μm with a 10 volt bias.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121051654","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175438
A. Abdellatif, M. Ghassemi, M. Nezhad-Ahmadi, S. Safavi-Naeini, N. Ghassemi
This paper presents a low cost high gain patch antenna array for automotive radar applications. A compact wide band (9.6GHz) low loss (0.5dB at 79GHz) micro-strip line to waveguide transition is also proposed for the antenna testing. The proposed antenna has a measured gain of 14.5dBi at 79GHz. The proposed antenna (including the transition) has been fabricated using a single dielectric layer PCB process with a total length of 35mm.
{"title":"Low cost low loss waveguide-fed patch antenna array for automotive radar system","authors":"A. Abdellatif, M. Ghassemi, M. Nezhad-Ahmadi, S. Safavi-Naeini, N. Ghassemi","doi":"10.1109/GSMM.2015.7175438","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175438","url":null,"abstract":"This paper presents a low cost high gain patch antenna array for automotive radar applications. A compact wide band (9.6GHz) low loss (0.5dB at 79GHz) micro-strip line to waveguide transition is also proposed for the antenna testing. The proposed antenna has a measured gain of 14.5dBi at 79GHz. The proposed antenna (including the transition) has been fabricated using a single dielectric layer PCB process with a total length of 35mm.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121639215","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175465
L. Chioukh, T. Djerafi, D. Deslandes, K. Wu
A new bio-radar based on a harmonic six-port junction is proposed to improve the performances of monitoring vital sign systems. The amplitude of heart beat compared to the higher harmonics of breathing and the intermodulation product are the main factors influencing the accuracy of the detection. Simulation-based performance demonstrate the advantage of the novel method using the harmonic six-port discriminator for detection. It has been shown that harmonic six-port radar can meet requirements of monitoring vital sign by cancelling breathing harmonic and intermodulation. Experimental results using the proposed platform at 12 GHz and 24 GHz on patient proved the validity and feasibility of cardiopulmonary estimation using harmonic diversity six-port sensor.
{"title":"Improvements of cardiopulmonary monitoring using harmonic six-port radar system","authors":"L. Chioukh, T. Djerafi, D. Deslandes, K. Wu","doi":"10.1109/GSMM.2015.7175465","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175465","url":null,"abstract":"A new bio-radar based on a harmonic six-port junction is proposed to improve the performances of monitoring vital sign systems. The amplitude of heart beat compared to the higher harmonics of breathing and the intermodulation product are the main factors influencing the accuracy of the detection. Simulation-based performance demonstrate the advantage of the novel method using the harmonic six-port discriminator for detection. It has been shown that harmonic six-port radar can meet requirements of monitoring vital sign by cancelling breathing harmonic and intermodulation. Experimental results using the proposed platform at 12 GHz and 24 GHz on patient proved the validity and feasibility of cardiopulmonary estimation using harmonic diversity six-port sensor.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126316015","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175107
C. Saavedra, David del Río, R. Berenguer
The design of a common-base (CB), power-combined, SiGe BiCMOS amplifier is reported. Wilkinson couplers are used for power splitting and combining at the input and output of the amplifier. The HBTs have three emitter fingers and each finger has a length of 2.7 μm and a width of 0.18 μm. The gain of the amplifier can be externally varied by biasing the HBTs from a 1.3-1.5 V dc supply applied to their collectors through on-chip bias tees and applying 850-900mV to the bases. Measurements on the fabricated amplifier reveal that the maximum gain can be varied between 10.91 and 15.75 dB, it has a 3-dB bandwidth from 68 to 73 GHz and an OP1dB of -1.8 dBm at 71 GHz. The chip area is 0.8 mm2 and it draws a dc power between 5.2 and 18.7 mW.
{"title":"68–73 GHz common-base HBT amplifier in 55 nm SiGe technology","authors":"C. Saavedra, David del Río, R. Berenguer","doi":"10.1109/GSMM.2015.7175107","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175107","url":null,"abstract":"The design of a common-base (CB), power-combined, SiGe BiCMOS amplifier is reported. Wilkinson couplers are used for power splitting and combining at the input and output of the amplifier. The HBTs have three emitter fingers and each finger has a length of 2.7 μm and a width of 0.18 μm. The gain of the amplifier can be externally varied by biasing the HBTs from a 1.3-1.5 V dc supply applied to their collectors through on-chip bias tees and applying 850-900mV to the bases. Measurements on the fabricated amplifier reveal that the maximum gain can be varied between 10.91 and 15.75 dB, it has a 3-dB bandwidth from 68 to 73 GHz and an OP1dB of -1.8 dBm at 71 GHz. The chip area is 0.8 mm2 and it draws a dc power between 5.2 and 18.7 mW.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131357143","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175464
N. Davoudzadeh, M. Tafazzoli, M. Sayeh
Delta Sigma modulation is the most powerful technique for optical signal processing due to its high bandwidth, noise immunity and cost. In this paper an optical delta sigma modulation theory is presented along with the calculation and design issues for optical system implementation. Simulation results are also attached which confirm the theory and possibility of reaching THz frequency in chip level implementation.
{"title":"Optical delta sigma modulator system design: The best approach for THz A/D conversion","authors":"N. Davoudzadeh, M. Tafazzoli, M. Sayeh","doi":"10.1109/GSMM.2015.7175464","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175464","url":null,"abstract":"Delta Sigma modulation is the most powerful technique for optical signal processing due to its high bandwidth, noise immunity and cost. In this paper an optical delta sigma modulation theory is presented along with the calculation and design issues for optical system implementation. Simulation results are also attached which confirm the theory and possibility of reaching THz frequency in chip level implementation.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132700982","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175451
Muhammad M. Tahseen, A. Kishk
Phase correction due to finite reflectarray (RA) antenna size and edge diffraction (ED) is proposed. The process is based on the numerical full wave analysis. The edge diffraction is mainly caused because of amplitude and phase ripples at sharp knife-edges of the outer perimeter of the RA antenna. The diffracted fields at the edges is diffracted in all directions resulting in disturbing the original phase and amplitude distribution, which further affect the pre-expected performance of the antenna. This could cause increasing of sidelobe level (SLL) and reducing aperture efficiency. The degradation in the antenna performance can be reduced by using serrated-edge ground, slotted GND and rolled-over edges with corner blended ground plane in the bottom of RA. The proposed methods provide RA performance when compared with RA antenna using sharp knife-edge (KED) ground plane. The proposed methods are analyzed by designing 19*19 RA antenna in fullwave analysis in the Ka-Band using size varying multi-bowtie radiating elements. The antenna performance is evaluated based on the achieved gain, aperture efficiency, SLL, and cross polarization. The proposed technique's result are compared with original RA using knife-edge ground plane. The best antenna performance is obtained using rolled-over edges GND plane. The antenna provides maximum gain of 26.36 dB, aperture efficiency of 59.5 %, SLL of -17.1 dB and 1-dB gain bandwidth of 11.2%, evaluated at center frequency 30 GHz. Near field analysis is also done for phase correction authentication.
{"title":"Phase correction techniques for reducing errors due to edge diffraction in reflectarray","authors":"Muhammad M. Tahseen, A. Kishk","doi":"10.1109/GSMM.2015.7175451","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175451","url":null,"abstract":"Phase correction due to finite reflectarray (RA) antenna size and edge diffraction (ED) is proposed. The process is based on the numerical full wave analysis. The edge diffraction is mainly caused because of amplitude and phase ripples at sharp knife-edges of the outer perimeter of the RA antenna. The diffracted fields at the edges is diffracted in all directions resulting in disturbing the original phase and amplitude distribution, which further affect the pre-expected performance of the antenna. This could cause increasing of sidelobe level (SLL) and reducing aperture efficiency. The degradation in the antenna performance can be reduced by using serrated-edge ground, slotted GND and rolled-over edges with corner blended ground plane in the bottom of RA. The proposed methods provide RA performance when compared with RA antenna using sharp knife-edge (KED) ground plane. The proposed methods are analyzed by designing 19*19 RA antenna in fullwave analysis in the Ka-Band using size varying multi-bowtie radiating elements. The antenna performance is evaluated based on the achieved gain, aperture efficiency, SLL, and cross polarization. The proposed technique's result are compared with original RA using knife-edge ground plane. The best antenna performance is obtained using rolled-over edges GND plane. The antenna provides maximum gain of 26.36 dB, aperture efficiency of 59.5 %, SLL of -17.1 dB and 1-dB gain bandwidth of 11.2%, evaluated at center frequency 30 GHz. Near field analysis is also done for phase correction authentication.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133095254","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 : 2015-05-25DOI: 10.1109/GSMM.2015.7175444
F. Parment, A. Ghiotto, T. Vuong, J. Duchamp, K. Wu
In this paper, air-filled Substrate Integrated Waveguide (SIW) is proposed and demonstrated for the first time at U-band. This low-loss transmission line is developed on a low-cost multilayer Printed Circuit Board (PCB) process. The top and bottom layers may make use of an extremely low-cost standard substrate such as FR-4 on which base-band or digital circuits can be designed so to obtain a very compact, high performance, low-cost and self-packaged integrated system. For measurement purposes, an optimized-length dielectric- to air-filled SIW transition operating at U-band with 0.21 ±0.055 dB insertion loss is developed. The measured insertion loss of an air-filled SIW of interest at U-band is 0.122 ±0.122 dB/cm compared to 0.4 ±0.13 dB/cm for its dielectric-filled counterpart. Furthermore, an air-filled SIW phase shifter is reported for the first time. It achieves a measured 0.15 ±0.14 dB transmission loss at U-band. The proposed air-filled SIW transmission line and phase shifter are of particular interest for high performance and low-cost millimeter-wave circuits and systems.
{"title":"Air-filled SIW transmission line and phase shifter for high-performance and low-cost U-Band integrated circuits and systems","authors":"F. Parment, A. Ghiotto, T. Vuong, J. Duchamp, K. Wu","doi":"10.1109/GSMM.2015.7175444","DOIUrl":"https://doi.org/10.1109/GSMM.2015.7175444","url":null,"abstract":"In this paper, air-filled Substrate Integrated Waveguide (SIW) is proposed and demonstrated for the first time at U-band. This low-loss transmission line is developed on a low-cost multilayer Printed Circuit Board (PCB) process. The top and bottom layers may make use of an extremely low-cost standard substrate such as FR-4 on which base-band or digital circuits can be designed so to obtain a very compact, high performance, low-cost and self-packaged integrated system. For measurement purposes, an optimized-length dielectric- to air-filled SIW transition operating at U-band with 0.21 ±0.055 dB insertion loss is developed. The measured insertion loss of an air-filled SIW of interest at U-band is 0.122 ±0.122 dB/cm compared to 0.4 ±0.13 dB/cm for its dielectric-filled counterpart. Furthermore, an air-filled SIW phase shifter is reported for the first time. It achieves a measured 0.15 ±0.14 dB transmission loss at U-band. The proposed air-filled SIW transmission line and phase shifter are of particular interest for high performance and low-cost millimeter-wave circuits and systems.","PeriodicalId":405509,"journal":{"name":"Global Symposium on Millimeter-Waves (GSMM)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132943689","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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