Pub Date : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022629
Jiaqi Liang, Yue Li, Hongbo Liu, Ke-Ting Chen
In view of the influence of physical environment on radio wave propagation during the operation of high-speed maglev train, this paper establishes maglev rail transit viaduct and tunnel scene models, and uses Cloud RT simulation platform to simulate wireless communication based on ray tracing method in different frequency bands of 3.5GHz and 38GHz. According to the simulation results, channel characteristic parameters such as path loss and delay spread are deduced, which can provide reference for the deployment of MMW railway communication system.
{"title":"Simulation and Research on Vehicle-ground Communication Channel of Maglev Train","authors":"Jiaqi Liang, Yue Li, Hongbo Liu, Ke-Ting Chen","doi":"10.1109/ICMMT55580.2022.10022629","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022629","url":null,"abstract":"In view of the influence of physical environment on radio wave propagation during the operation of high-speed maglev train, this paper establishes maglev rail transit viaduct and tunnel scene models, and uses Cloud RT simulation platform to simulate wireless communication based on ray tracing method in different frequency bands of 3.5GHz and 38GHz. According to the simulation results, channel characteristic parameters such as path loss and delay spread are deduced, which can provide reference for the deployment of MMW railway communication system.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128897407","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022411
Yi Wang, Huihua Liu, Zhao Xing, Yi-ming Yu, Yunqiu Wu, Chenxi Zhao, K. Kang
This paper presents a differential inverse-class-F voltage-controlled-oscillator (VCO). By inversely coupling two identical inverse-class-F VCO through two coupling capacitors between the gates of the active devices, the proposed VCO can achieve differential output if the size of the coupling capacitors is selected properly, and therefore gets more suppression to the disturbance of the supply voltage. Meanwhile, the proposed VCO inherits the high FoM performance of the inverse-class-F topology and achieves phase noise improvement due to the electrical coupling. Designed and simulated in 28 nm CMOS process, the post-layout simulation shows that the prototype consumes 5.26 mW from a 0.7-V supply. The PN at 1 MHz offset is −121.4 dBc/Hz when oscillating at 7.92 GHz. The figure-of-merit (FoM) is about 192.2 dBc/Hz.
{"title":"A 7.92-9.72 GHz Differential Inverse-Class-F VCO Based on Electrical Coupling","authors":"Yi Wang, Huihua Liu, Zhao Xing, Yi-ming Yu, Yunqiu Wu, Chenxi Zhao, K. Kang","doi":"10.1109/ICMMT55580.2022.10022411","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022411","url":null,"abstract":"This paper presents a differential inverse-class-F voltage-controlled-oscillator (VCO). By inversely coupling two identical inverse-class-F VCO through two coupling capacitors between the gates of the active devices, the proposed VCO can achieve differential output if the size of the coupling capacitors is selected properly, and therefore gets more suppression to the disturbance of the supply voltage. Meanwhile, the proposed VCO inherits the high FoM performance of the inverse-class-F topology and achieves phase noise improvement due to the electrical coupling. Designed and simulated in 28 nm CMOS process, the post-layout simulation shows that the prototype consumes 5.26 mW from a 0.7-V supply. The PN at 1 MHz offset is −121.4 dBc/Hz when oscillating at 7.92 GHz. The figure-of-merit (FoM) is about 192.2 dBc/Hz.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130785836","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023467
Kewang Wu, Hanxuan Li, Bo Li, Lei Zhu
In this paper, a short-open-load (SOL) calibration technique is used to accurately extract the lumped parameters of micro-coaxial-line circuit. SOL technique avoids the tedious field calculation algorithm in numerical de-embedding, and the operation process is more concise. With the help of SOL technique, the non-uniform feed lines of loading periodic release holes and the parameters of core circuit can be de-embedded. Taking micro-fabricated inductor and capacitor for instance, the lumped parameters are successfully extracted. Good agreements between the circuit parameters obtained by SOL calibration technique and commercial software ANSYS HFSS indicates that SOL technique can accurately de-embed the micro-coaxial-line circuit.
{"title":"Short-Open-Load (SOL) Calibration Technique for Accurate Parameter Extraction in Micro-Coaxial-Line Circuit","authors":"Kewang Wu, Hanxuan Li, Bo Li, Lei Zhu","doi":"10.1109/ICMMT55580.2022.10023467","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023467","url":null,"abstract":"In this paper, a short-open-load (SOL) calibration technique is used to accurately extract the lumped parameters of micro-coaxial-line circuit. SOL technique avoids the tedious field calculation algorithm in numerical de-embedding, and the operation process is more concise. With the help of SOL technique, the non-uniform feed lines of loading periodic release holes and the parameters of core circuit can be de-embedded. Taking micro-fabricated inductor and capacitor for instance, the lumped parameters are successfully extracted. Good agreements between the circuit parameters obtained by SOL calibration technique and commercial software ANSYS HFSS indicates that SOL technique can accurately de-embed the micro-coaxial-line circuit.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132178650","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022859
Hong Xu, Xin Huai Wang, Yin Xu, Xiao Cheng Wang, Xin Li, X. Shi
In this paper, FMCW millimeter wave radar sensor is used to detect the sound signal. The vibration of the surface of the sound source modulates the transmitted signal of the radar, which can recover the sound signal. Experiments have confirmed that the 77GHz millimeter wave radar can detect the tiny vibration of more than ten microns, avoid the mutual interference between multiple sound sources in a complex scene, and can independently obtain the signal of each sound source.
{"title":"Sound Signal Detection Based on FMCW Milimeter Wave Radar","authors":"Hong Xu, Xin Huai Wang, Yin Xu, Xiao Cheng Wang, Xin Li, X. Shi","doi":"10.1109/ICMMT55580.2022.10022859","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022859","url":null,"abstract":"In this paper, FMCW millimeter wave radar sensor is used to detect the sound signal. The vibration of the surface of the sound source modulates the transmitted signal of the radar, which can recover the sound signal. Experiments have confirmed that the 77GHz millimeter wave radar can detect the tiny vibration of more than ten microns, avoid the mutual interference between multiple sound sources in a complex scene, and can independently obtain the signal of each sound source.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132322177","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022649
Weiyu He, Junwei Shi, Wei Lu, Sifan Wu, Jianxing Li
This paper presents an ultra-wideband (UWB) dielectric rod antenna working at L-band to C-band. The antenna consists of a planar UWB circular slot antenna, a dielectric rod antenna, a reflector, and a housing. The planar UWB circular slot antenna acts as the feed structure for the dielectric rod antenna. The HE11 mode is excited in the dielectric rod antenna. The reflector is located at the other side of the planar to increase the antenna directivity. The proposed antenna achieves -10 dB impedance bandwidths of 2.22 GHz-8.45 GHz (FBW=116%). The antenna gain is higher than 7 dBi and the total efficiency is higher than 70% across the operating frequency band, and radiation patterns are stable. The antenna is suitable for ground penetrating radar.
{"title":"An Ultra-Wideband Dielectric Rod Antenna","authors":"Weiyu He, Junwei Shi, Wei Lu, Sifan Wu, Jianxing Li","doi":"10.1109/ICMMT55580.2022.10022649","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022649","url":null,"abstract":"This paper presents an ultra-wideband (UWB) dielectric rod antenna working at L-band to C-band. The antenna consists of a planar UWB circular slot antenna, a dielectric rod antenna, a reflector, and a housing. The planar UWB circular slot antenna acts as the feed structure for the dielectric rod antenna. The HE11 mode is excited in the dielectric rod antenna. The reflector is located at the other side of the planar to increase the antenna directivity. The proposed antenna achieves -10 dB impedance bandwidths of 2.22 GHz-8.45 GHz (FBW=116%). The antenna gain is higher than 7 dBi and the total efficiency is higher than 70% across the operating frequency band, and radiation patterns are stable. The antenna is suitable for ground penetrating radar.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130431486","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}
With the continuous development of PRCPM detctor, the accuracy and data transmission rate are increasingly required, so the detctor needs a higher rate of pseudorandom code to drive. This paper designs a high speed pseudorandom code source based on Cyclone 10 GX FPGA and the dynamic reconfiguration of the Nios II processor, its output signal frequency can reach up to 12.5GHz, and supports the dynamic reconfiguration of frequency and m sequence order.
{"title":"Design of a Multi-parameter Adjustable Pseudorandom Code Source","authors":"Chaolin Zeng, Jinyang Li, Ximi Li, Hongbo Yin, Xuhui Chen","doi":"10.1109/ICMMT55580.2022.10023454","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023454","url":null,"abstract":"With the continuous development of PRCPM detctor, the accuracy and data transmission rate are increasingly required, so the detctor needs a higher rate of pseudorandom code to drive. This paper designs a high speed pseudorandom code source based on Cyclone 10 GX FPGA and the dynamic reconfiguration of the Nios II processor, its output signal frequency can reach up to 12.5GHz, and supports the dynamic reconfiguration of frequency and m sequence order.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127645661","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022869
Xianheng Ding, Wei Chen, X. He, Lixia Yang, D. Ding, Xiao-di Song, Yang Chen
This paper proposes a broadband dual-polarized base station antenna with stable radiation performances in 2.3-4.3 GHz. The radiation surface is excited by two pairs of baluns, and its radiation performance can be effectively improved by changing the shape of the end of branch of the feeding line. According to the measured results, the designed antenna has a wide bandwidth of 60.6% from 2.3 GHz to 4.3 GHz with $boldsymbol{> 14.5}$ dB return loss. Moreover, the isolation is greater than 27 dB, the antenna gain is around 8.5 dBi, half power beamwidth (HPBW) of the two polarizations are within 67. $boldsymbol{6}^{boldsymbol{circ}}pm boldsymbol{2.5}^{boldsymbol{circ}}$, and the cross- polarization discrimination (XPD) is higher than 23 dB. It has a good application prospect in stations for 5G applications.
{"title":"Broadband Dual-polarized Base Station Antenna with Stable Radiation Pattern","authors":"Xianheng Ding, Wei Chen, X. He, Lixia Yang, D. Ding, Xiao-di Song, Yang Chen","doi":"10.1109/ICMMT55580.2022.10022869","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022869","url":null,"abstract":"This paper proposes a broadband dual-polarized base station antenna with stable radiation performances in 2.3-4.3 GHz. The radiation surface is excited by two pairs of baluns, and its radiation performance can be effectively improved by changing the shape of the end of branch of the feeding line. According to the measured results, the designed antenna has a wide bandwidth of 60.6% from 2.3 GHz to 4.3 GHz with $boldsymbol{> 14.5}$ dB return loss. Moreover, the isolation is greater than 27 dB, the antenna gain is around 8.5 dBi, half power beamwidth (HPBW) of the two polarizations are within 67. $boldsymbol{6}^{boldsymbol{circ}}pm boldsymbol{2.5}^{boldsymbol{circ}}$, and the cross- polarization discrimination (XPD) is higher than 23 dB. It has a good application prospect in stations for 5G applications.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131665580","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10022571
Runze Li, Taolei Zhou, Qianqian Wang, Shiyi Xiao
Millimeter wave circularly polarized antenna has the characteristics of reducing polarization mismatch and suppressing multipath interference, and has better stability in harsh environment, which is an important device to improve the performance of communication system, and the related radome also plays an increasingly important role. In this work, we present a multilayer metasurface, which can convert left hand circularly polarized electromagnetic waves into right hand circularly polarized waves. Simulation shows that such metasurface exhibits axle ratio $< 2$ and insertion loss $< 2mathbf{dB}$ within ± 60° oblique angle incidence in the 30 - 40 GHz.
{"title":"Millimeter Wave Band Left Hand Circular Polarization to Right Hand Circular Polarization Convertor Based on Multilayer Meta-surface","authors":"Runze Li, Taolei Zhou, Qianqian Wang, Shiyi Xiao","doi":"10.1109/ICMMT55580.2022.10022571","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10022571","url":null,"abstract":"Millimeter wave circularly polarized antenna has the characteristics of reducing polarization mismatch and suppressing multipath interference, and has better stability in harsh environment, which is an important device to improve the performance of communication system, and the related radome also plays an increasingly important role. In this work, we present a multilayer metasurface, which can convert left hand circularly polarized electromagnetic waves into right hand circularly polarized waves. Simulation shows that such metasurface exhibits axle ratio $< 2$ and insertion loss $< 2mathbf{dB}$ within ± 60° oblique angle incidence in the 30 - 40 GHz.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131744387","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023050
Chaoxu Chen, Wei Chen, Hai Huang, Qingqing Deng, Lixia Yang
Proceeding from the Boltzmann kinetic equation of plasma, the Fokker-Planck-Landau (FPL) collision model of dusty plasma is derived in this paper as the effect of the external magnetic field is taken into account and the dielectric coefficient of full-ionized dusty plasma is acquired on this basis. Using the Transfer Matrix Method, the attenuation coefficients in different dusty plasma parameters and external magnetic fields are calculated. Results reveal that the dust concentration contributes to attenuation properties under the impact of external magnetization. Particularly, if the electron spins in the same direction as the polarized waves under the effect of the external magnetic field, a high attenuation peak and an associated attenuation band will appear at electron cyclotron frequency. These findings provide references for the research on the blackouts of hypersonic vehicles.
{"title":"Research on the attenuation properties of circularly polarized wave in dusty plasma for FPL model","authors":"Chaoxu Chen, Wei Chen, Hai Huang, Qingqing Deng, Lixia Yang","doi":"10.1109/ICMMT55580.2022.10023050","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023050","url":null,"abstract":"Proceeding from the Boltzmann kinetic equation of plasma, the Fokker-Planck-Landau (FPL) collision model of dusty plasma is derived in this paper as the effect of the external magnetic field is taken into account and the dielectric coefficient of full-ionized dusty plasma is acquired on this basis. Using the Transfer Matrix Method, the attenuation coefficients in different dusty plasma parameters and external magnetic fields are calculated. Results reveal that the dust concentration contributes to attenuation properties under the impact of external magnetization. Particularly, if the electron spins in the same direction as the polarized waves under the effect of the external magnetic field, a high attenuation peak and an associated attenuation band will appear at electron cyclotron frequency. These findings provide references for the research on the blackouts of hypersonic vehicles.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125344550","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 : 2022-08-12DOI: 10.1109/ICMMT55580.2022.10023238
Yubin Jin, L. Gui, Xiao Li, Yuyu Xia, Ke Chen, L. Lang
The research on underwater multi-user optical communication is an essential step to establish an underwater optical communication network. But most of the current research on underwater optical communication is limited to single-user-to-single-user communication. This paper presents an underwater OCDMA communication system and an encoding and decoding method based on decreasing code weight OOC. Compared with the original OOC, the method can effectively reduce the user code length and improve the system communication rate.
{"title":"Analysis of encoding and decoding method of underwater OCDMA system based on decreasing code weight OOC code","authors":"Yubin Jin, L. Gui, Xiao Li, Yuyu Xia, Ke Chen, L. Lang","doi":"10.1109/ICMMT55580.2022.10023238","DOIUrl":"https://doi.org/10.1109/ICMMT55580.2022.10023238","url":null,"abstract":"The research on underwater multi-user optical communication is an essential step to establish an underwater optical communication network. But most of the current research on underwater optical communication is limited to single-user-to-single-user communication. This paper presents an underwater OCDMA communication system and an encoding and decoding method based on decreasing code weight OOC. Compared with the original OOC, the method can effectively reduce the user code length and improve the system communication rate.","PeriodicalId":211726,"journal":{"name":"2022 International Conference on Microwave and Millimeter Wave Technology (ICMMT)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125450782","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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