Pub Date : 2016-11-01DOI: 10.1109/LAPC.2016.7807569
A. Kausar, H. Mehrpouyan, M. Sellathurai, Rongrong Qian, Shafaq Kausar
This paper includes design and implementation result of an adaptive beam forming antenna for upcoming 5G and Internet of Things (IoT). Switched parasitic array antennas are low cost, small sized and compact circular array antennas that steer beam in a desired direction by variation in switching pattern of parasitic elements. The proposed antenna design has an active center element, which is surrounded by several symmetrically placed parasitic elements. The designed antenna has a gain of 8 dB and is capable of 360 degrees beam steering in steps of 60 degrees each. Simulations are validated with results of the fabricated antenna. Antenna beam is steered by controlling parasitic elements. Future application of Electronically Steerable Parasitic Array Radiator (ESPAR) antennas and switched parasitic array antennas in next generation communication networks and methods for reducing size of the antenna are also highlighted.
{"title":"Energy efficient switched parasitic array antenna for 5G networks and IoT","authors":"A. Kausar, H. Mehrpouyan, M. Sellathurai, Rongrong Qian, Shafaq Kausar","doi":"10.1109/LAPC.2016.7807569","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807569","url":null,"abstract":"This paper includes design and implementation result of an adaptive beam forming antenna for upcoming 5G and Internet of Things (IoT). Switched parasitic array antennas are low cost, small sized and compact circular array antennas that steer beam in a desired direction by variation in switching pattern of parasitic elements. The proposed antenna design has an active center element, which is surrounded by several symmetrically placed parasitic elements. The designed antenna has a gain of 8 dB and is capable of 360 degrees beam steering in steps of 60 degrees each. Simulations are validated with results of the fabricated antenna. Antenna beam is steered by controlling parasitic elements. Future application of Electronically Steerable Parasitic Array Radiator (ESPAR) antennas and switched parasitic array antennas in next generation communication networks and methods for reducing size of the antenna are also highlighted.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"2018 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124672938","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807591
Manuel Steins, Sebastian Leuck, A. Diewald
In this paper a PLL-based and programmable 24GHz signal source is presented which has been developed with a low cost RF chipset from Analog Devices as a bachelor thesis work. The RF-front end and the programming module designs are shown and the measurement results are compared with the specifications in the datasheets.
{"title":"Universal programmable low cost signal source for 24 GHz ISM band","authors":"Manuel Steins, Sebastian Leuck, A. Diewald","doi":"10.1109/LAPC.2016.7807591","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807591","url":null,"abstract":"In this paper a PLL-based and programmable 24GHz signal source is presented which has been developed with a low cost RF chipset from Analog Devices as a bachelor thesis work. The RF-front end and the programming module designs are shown and the measurement results are compared with the specifications in the datasheets.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123145968","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807544
T. Quinlan, S. Walker
Small cell mesh wireless systems capable of high data rates seem likely to play a key role in the new proposed IEEE802.11ad based 5G networks. Key to these architectures will be antennas that can both support very wide bandwidths and at the same time deliver high gain performance whilst maintaining omnidirectional characteristics. Such attributes are often considered to be mutually exclusive or require steerable array techniques to accomplish. This design satisfies these requirements in a single device with a gain of 13dBi over a frequency range between 57GHz and 64GHz.
{"title":"A monopole fed omnidirectional 13dBi gain Bi-conical horn antenna for IEEE802.11ad applications","authors":"T. Quinlan, S. Walker","doi":"10.1109/LAPC.2016.7807544","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807544","url":null,"abstract":"Small cell mesh wireless systems capable of high data rates seem likely to play a key role in the new proposed IEEE802.11ad based 5G networks. Key to these architectures will be antennas that can both support very wide bandwidths and at the same time deliver high gain performance whilst maintaining omnidirectional characteristics. Such attributes are often considered to be mutually exclusive or require steerable array techniques to accomplish. This design satisfies these requirements in a single device with a gain of 13dBi over a frequency range between 57GHz and 64GHz.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129586373","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807546
A. Saleh, Khalil H. Sayidmarie, R. Abd‐Alhameed, S. Jones, J. Noras, P. Excell
This paper presents a Tri-band multiple input multiple output (MIMO) antennae for Wi-Fi/WiMAX applications. The antenna consists of two radiating elements placed symmetrically. The overall dimensions of the antenna are 47 ×36 × 1.6 mm3. The separation distance between the two elements is 3mm (0.024λo). The Co-Planar Waveguide (CPW) technique is used as a feeding network. The Isolation factor is improved by inserting a neutralization line between the ground planes of the two antennas. The proposed MIMO antenna is implemented and tested. The measured results are in reasonable agreement with the simulated ones.
{"title":"Compact tri-band MIMO antenna with high port isolation for WLAN and WiMAX applications","authors":"A. Saleh, Khalil H. Sayidmarie, R. Abd‐Alhameed, S. Jones, J. Noras, P. Excell","doi":"10.1109/LAPC.2016.7807546","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807546","url":null,"abstract":"This paper presents a Tri-band multiple input multiple output (MIMO) antennae for Wi-Fi/WiMAX applications. The antenna consists of two radiating elements placed symmetrically. The overall dimensions of the antenna are 47 ×36 × 1.6 mm3. The separation distance between the two elements is 3mm (0.024λo). The Co-Planar Waveguide (CPW) technique is used as a feeding network. The Isolation factor is improved by inserting a neutralization line between the ground planes of the two antennas. The proposed MIMO antenna is implemented and tested. The measured results are in reasonable agreement with the simulated ones.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129925698","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807495
S. Ogurtsov, S. Koziel
A novel procedure for automated simulation-driven tuning of circularly polarized (CP) microstrip patch antennas (MPA) for improved axial ratio (AR) is presented. Our approach specifically addresses the CP MPAs exited through dual inputs which are driven by branch line couplers of unequal power splits. Our procedure allows for the improvement of AR over the required range of operating frequencies. The procedure, implemented in a part with numerical optimization, is governed by a closed form formulas computing an appropriate unequal amplitude excitation of the MPA of interest. The required excitations are implemented with microstrip branch line couplers. Numerical optimization addresses the effect of coupling (through the feed) of the entire MPA-feed circuit. In this paper, the approach is illustrated with a numerical example of a probe-fed MPA. Moreover, our methodology has also been demonstrated to work for MPAs with open-end microstrip inputs. Numerical validation is carried out using full-wave simulations of the entire MPA-feed circuits.
{"title":"Automated design of circularly polarized microstrip patch antennas with improved axial ratio","authors":"S. Ogurtsov, S. Koziel","doi":"10.1109/LAPC.2016.7807495","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807495","url":null,"abstract":"A novel procedure for automated simulation-driven tuning of circularly polarized (CP) microstrip patch antennas (MPA) for improved axial ratio (AR) is presented. Our approach specifically addresses the CP MPAs exited through dual inputs which are driven by branch line couplers of unequal power splits. Our procedure allows for the improvement of AR over the required range of operating frequencies. The procedure, implemented in a part with numerical optimization, is governed by a closed form formulas computing an appropriate unequal amplitude excitation of the MPA of interest. The required excitations are implemented with microstrip branch line couplers. Numerical optimization addresses the effect of coupling (through the feed) of the entire MPA-feed circuit. In this paper, the approach is illustrated with a numerical example of a probe-fed MPA. Moreover, our methodology has also been demonstrated to work for MPAs with open-end microstrip inputs. Numerical validation is carried out using full-wave simulations of the entire MPA-feed circuits.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"62 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132978051","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807504
R. Maximidis, A. B. Smolders, G. Toso, D. Caratelli
The aim of this paper is to introduce a novel super-elliptical waveguide technology for the design of reactively loaded antenna arrays. The benefits arising from the application of the proposed waveguide geometry based on Lame' equation are described and discussed in detail, with a special focus on the possibility of controlling parasitic coupling level between adjacent waveguiding structures by changing the relevant cross section. This gives us an additional degree of freedom in the design process of reactively loaded arrays.
{"title":"Super-elliptical waveguide technology for reactively loaded antenna arrays","authors":"R. Maximidis, A. B. Smolders, G. Toso, D. Caratelli","doi":"10.1109/LAPC.2016.7807504","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807504","url":null,"abstract":"The aim of this paper is to introduce a novel super-elliptical waveguide technology for the design of reactively loaded antenna arrays. The benefits arising from the application of the proposed waveguide geometry based on Lame' equation are described and discussed in detail, with a special focus on the possibility of controlling parasitic coupling level between adjacent waveguiding structures by changing the relevant cross section. This gives us an additional degree of freedom in the design process of reactively loaded arrays.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132069557","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807557
Hasan Noor Khan, J. Grosinger, Lukas Gortschacher, Dominik Amschl, P. Priller, U. Muehlmann, W. Bosch
The stringent constraint in any wireless communication system is the wireless channel itself. The indoor radio channel in an industrial environment exhibits a lot of multipath due to the prevalent metallic structures. In this research, an indoor radio channel is investigated in a severe multipath engine test bed environment. The study of this channel is undertaken for the applicability of a cost-efficient passive ultra high frequency radio frequency identification system capable of performing two dimensional localization of tagged objects in an engine test bed facility. The channel transfer functions were measured using a vector network analyzer. Vital channel characteristics investigated in this paper are the power delay profiles, the root mean square (RMS) delay and the power-ratio between the line of sight (LoS) and non-line of sight (NLoS) paths. The maximum RMS delay experienced is 47.1 ns and a minimum of 8.6 ns. The power-ratio values are appreciable for the majority of the LoS positions, but not satisfactory for the NLoS positions. Using this information, it will be helpful in analyzing the localization performance of a measurement-based system simulator or of a prospective hardware setup, in an engine test bed environment.
{"title":"Statistical analysis of the power delay profile of a SIMO UHF backscatter RFID channel in an engine test bed","authors":"Hasan Noor Khan, J. Grosinger, Lukas Gortschacher, Dominik Amschl, P. Priller, U. Muehlmann, W. Bosch","doi":"10.1109/LAPC.2016.7807557","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807557","url":null,"abstract":"The stringent constraint in any wireless communication system is the wireless channel itself. The indoor radio channel in an industrial environment exhibits a lot of multipath due to the prevalent metallic structures. In this research, an indoor radio channel is investigated in a severe multipath engine test bed environment. The study of this channel is undertaken for the applicability of a cost-efficient passive ultra high frequency radio frequency identification system capable of performing two dimensional localization of tagged objects in an engine test bed facility. The channel transfer functions were measured using a vector network analyzer. Vital channel characteristics investigated in this paper are the power delay profiles, the root mean square (RMS) delay and the power-ratio between the line of sight (LoS) and non-line of sight (NLoS) paths. The maximum RMS delay experienced is 47.1 ns and a minimum of 8.6 ns. The power-ratio values are appreciable for the majority of the LoS positions, but not satisfactory for the NLoS positions. Using this information, it will be helpful in analyzing the localization performance of a measurement-based system simulator or of a prospective hardware setup, in an engine test bed environment.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133107409","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807603
B. Biemacki, Shiyu Zhang, W. Whittow
Effects of using air voids to vary the effective permittivity of Acrylonitrile-Butadiene-Styrene (ABS) TP20280 thermoplastic filament have been investigated. Measurements of the relativity permittivity and loss tangent of 3D printed substrates with different infill fractions have been made. A 3D printer has been used to manufacture heterogeneous antenna substrates, allowing for extra degrees of design freedom; specifically, varying the relative permittivity as a function of substrate location. S11 magnitude responses and performance parameters of heterogeneous antenna prototypes have been measured and validated through comparison with simulated data. Results presented conclude that patch antenna with linear variation of relative permittivity perpendicular to major current direction improved impedance match of the second resonant frequency, when compared with a traditional homogenous substrate patch antenna.
{"title":"3D printed substrates with graded dielectric properties and their application to patch antennas","authors":"B. Biemacki, Shiyu Zhang, W. Whittow","doi":"10.1109/LAPC.2016.7807603","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807603","url":null,"abstract":"Effects of using air voids to vary the effective permittivity of Acrylonitrile-Butadiene-Styrene (ABS) TP20280 thermoplastic filament have been investigated. Measurements of the relativity permittivity and loss tangent of 3D printed substrates with different infill fractions have been made. A 3D printer has been used to manufacture heterogeneous antenna substrates, allowing for extra degrees of design freedom; specifically, varying the relative permittivity as a function of substrate location. S11 magnitude responses and performance parameters of heterogeneous antenna prototypes have been measured and validated through comparison with simulated data. Results presented conclude that patch antenna with linear variation of relative permittivity perpendicular to major current direction improved impedance match of the second resonant frequency, when compared with a traditional homogenous substrate patch antenna.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130127195","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807525
M. Spanu, M. B. Lodi, A. Fanti, S. Casu, F. Desogus, G. Mazzarella
This work focuses on the heat transfer dynamics in agricultural soils when exposed to microwave (MW) fields, in order to disinfect them and to eliminate dangerous organisms without using pesticides. The work managed with the design of a horn antenna, with fixed feeding power, to be used to irradiate the superficial layer of soils for a fixed depth. The soil was approximated using a transmission line model, i.e. a lumped electrical model. By this model, after having evaluated the relevant physical parameters, e.g. the dielectric constant (as a function of the soil water content), it was possible to evaluate the power absorption for the irradiated ground and, finally, the increase in temperature and its profile as a function of the irradiation time. Since the latter information is strictly connected to the heat transfer process occurring in the system, it is demonstrated the feasibility of the methodology here proposed to achieve difficult conditions for microbial and pathogens life and so an effective disinfection of the treated farmland.
{"title":"A feasibility study for disinfection of farmland using microwaves","authors":"M. Spanu, M. B. Lodi, A. Fanti, S. Casu, F. Desogus, G. Mazzarella","doi":"10.1109/LAPC.2016.7807525","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807525","url":null,"abstract":"This work focuses on the heat transfer dynamics in agricultural soils when exposed to microwave (MW) fields, in order to disinfect them and to eliminate dangerous organisms without using pesticides. The work managed with the design of a horn antenna, with fixed feeding power, to be used to irradiate the superficial layer of soils for a fixed depth. The soil was approximated using a transmission line model, i.e. a lumped electrical model. By this model, after having evaluated the relevant physical parameters, e.g. the dielectric constant (as a function of the soil water content), it was possible to evaluate the power absorption for the irradiated ground and, finally, the increase in temperature and its profile as a function of the irradiation time. Since the latter information is strictly connected to the heat transfer process occurring in the system, it is demonstrated the feasibility of the methodology here proposed to achieve difficult conditions for microbial and pathogens life and so an effective disinfection of the treated farmland.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133678432","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 : 2016-11-01DOI: 10.1109/LAPC.2016.7807565
A. Rahimian, A. Alomainy, Y. Alfadhl
This paper presents a novel millimetre-wave (mm-wave) array beamforming network (BFN) design, analysis, and implementation based on the Rotman lens antenna array feeding, intended for operation in the unlicensed 60-GHz frequency band for the potential employment in the fifth-generation (5G) cellular communications and WiGig technology. The primary objective of the work is to thoroughly discuss the advanced cellular network, and to further develop a flexible radio frequency (RF) component based on the polyethylene terephthalate (PET) substrate using the in-house inkjet materials printing process, for the mm-wave beam steering concept verification. The RF evaluation modeling demonstrates the appropriateness to develop a high-performance and well-established design for the WiGig and 5G systems, along with the analysis of the RF characteristics. The CST Microwave Studio and MATLAB software are employed in order to conduct the modelling and full-wave electromagnetic (EM) simulations.
{"title":"A flexible printed millimetre-wave beamforming network for WiGig and 5G wireless subsystems","authors":"A. Rahimian, A. Alomainy, Y. Alfadhl","doi":"10.1109/LAPC.2016.7807565","DOIUrl":"https://doi.org/10.1109/LAPC.2016.7807565","url":null,"abstract":"This paper presents a novel millimetre-wave (mm-wave) array beamforming network (BFN) design, analysis, and implementation based on the Rotman lens antenna array feeding, intended for operation in the unlicensed 60-GHz frequency band for the potential employment in the fifth-generation (5G) cellular communications and WiGig technology. The primary objective of the work is to thoroughly discuss the advanced cellular network, and to further develop a flexible radio frequency (RF) component based on the polyethylene terephthalate (PET) substrate using the in-house inkjet materials printing process, for the mm-wave beam steering concept verification. The RF evaluation modeling demonstrates the appropriateness to develop a high-performance and well-established design for the WiGig and 5G systems, along with the analysis of the RF characteristics. The CST Microwave Studio and MATLAB software are employed in order to conduct the modelling and full-wave electromagnetic (EM) simulations.","PeriodicalId":253379,"journal":{"name":"2016 Loughborough Antennas & Propagation Conference (LAPC)","volume":"52 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125476252","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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