Pub Date : 2016-05-17DOI: 10.1109/APEMC.2016.7523021
Cheng Ning, M. Resso, Zhu Wenxue, Jia Gongxian, Long Faming
There are several existing techniques like Direct Loss Subtraction, Through-Reflection-Line (TRL) calibration and Automatic Fixture Removal (AFR) with 2XThrough fixtures for characterizing PCB unit length insertion loss. In this paper, 1) a new method for characterizing PCB loss by using AFR with 1X Open fixtures is proposed. This new method has been proved to have the similar accuracy with TRL and AFR with 2X throughs, but can save much more PCB area and measurement time; 2) based on measurements of transmission lines with different reference impedance, the measurement bandwidth, accuracy, efficiency and cost of these techniques are compared.
{"title":"Characterization of PCB s-parameters with a new calibration method","authors":"Cheng Ning, M. Resso, Zhu Wenxue, Jia Gongxian, Long Faming","doi":"10.1109/APEMC.2016.7523021","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7523021","url":null,"abstract":"There are several existing techniques like Direct Loss Subtraction, Through-Reflection-Line (TRL) calibration and Automatic Fixture Removal (AFR) with 2XThrough fixtures for characterizing PCB unit length insertion loss. In this paper, 1) a new method for characterizing PCB loss by using AFR with 1X Open fixtures is proposed. This new method has been proved to have the similar accuracy with TRL and AFR with 2X throughs, but can save much more PCB area and measurement time; 2) based on measurements of transmission lines with different reference impedance, the measurement bandwidth, accuracy, efficiency and cost of these techniques are compared.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129150951","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7523011
A. Ayed, S. O. Land, R. Perdriau, M. Ramdani
Predicting the immunity of printed circuit boards (PCBs) to radiated electromagnetic interference (EMI) requires the computation of the electromagnetic field's coupling to PCB traces. A modified Taylor-based analytical model exists developed and validated for PCB's immunity prediction. In this paper, we present the methodology of development of an electronic design automation (EDA) extension for Altium Designer based on the prediction model. The developed extension allows PCB designers to have further insight on PCBs immunity during design phase and implements a unique electromagnetic compatibility (EMC) feature compared to existing EMC tools.
{"title":"FastImmunity: An EDA extension for PCB immunity prediction","authors":"A. Ayed, S. O. Land, R. Perdriau, M. Ramdani","doi":"10.1109/APEMC.2016.7523011","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7523011","url":null,"abstract":"Predicting the immunity of printed circuit boards (PCBs) to radiated electromagnetic interference (EMI) requires the computation of the electromagnetic field's coupling to PCB traces. A modified Taylor-based analytical model exists developed and validated for PCB's immunity prediction. In this paper, we present the methodology of development of an electronic design automation (EDA) extension for Altium Designer based on the prediction model. The developed extension allows PCB designers to have further insight on PCBs immunity during design phase and implements a unique electromagnetic compatibility (EMC) feature compared to existing EMC tools.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124575997","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522756
Nan-Nan Wang, Liqing Wang, H. Chou
In recent years, the RFID technologies have greatly developed. This paper presents the application of the algorithm SDM to near-field circular polarized planar array antennas to get a kind of radiation field which has an area of 0.5m×0.5m and attenuates rapidly at other place on a plane. This plane is 1.5m away from the aperture. Basically, we use Fortran to program to get the phases of all array elements to make it. The antenna works on 2.4GHz and can be used as the near-field antenna of the RFID reader.
{"title":"Synthesis of circle-polarized planar array antennas to produce near-field contoured patterns","authors":"Nan-Nan Wang, Liqing Wang, H. Chou","doi":"10.1109/APEMC.2016.7522756","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522756","url":null,"abstract":"In recent years, the RFID technologies have greatly developed. This paper presents the application of the algorithm SDM to near-field circular polarized planar array antennas to get a kind of radiation field which has an area of 0.5m×0.5m and attenuates rapidly at other place on a plane. This plane is 1.5m away from the aperture. Basically, we use Fortran to program to get the phases of all array elements to make it. The antenna works on 2.4GHz and can be used as the near-field antenna of the RFID reader.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129930012","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522849
M. Ameya, S. Kurokawa
In this study, we propose a high flatness log-scale comb-generator using FPGA-based arbitrary waveform generator. The proposed comb-generator can cover the frequency range from 9 kHz to 30 MHz and can generate almost-equal-spaced comb-like spectrum in frequency logarithmic scale. In addition, the fine tuning of the output level of each comb can be realized by the use of FPGA architecture. After fine tuning for the flatness of comb spectrum, the output levels of 90 dBuV ±0.02 dB are achieved. The standard deviation of the output spectrum measurements taken over a span of 3 hours is less than 0.01 dB for frequencies less than 30 MHz. Therefore, the output spectrum of the proposed comb-generator is quite stable. The proposed comb-generator can find applications in calibration systems such as a reference signal generator for checking emission test systems or performing round robin tests.
{"title":"High flatness log-scale comb-generator using FPGA-based arbitrary waveform generator for sub-30 MHz emission test systems","authors":"M. Ameya, S. Kurokawa","doi":"10.1109/APEMC.2016.7522849","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522849","url":null,"abstract":"In this study, we propose a high flatness log-scale comb-generator using FPGA-based arbitrary waveform generator. The proposed comb-generator can cover the frequency range from 9 kHz to 30 MHz and can generate almost-equal-spaced comb-like spectrum in frequency logarithmic scale. In addition, the fine tuning of the output level of each comb can be realized by the use of FPGA architecture. After fine tuning for the flatness of comb spectrum, the output levels of 90 dBuV ±0.02 dB are achieved. The standard deviation of the output spectrum measurements taken over a span of 3 hours is less than 0.01 dB for frequencies less than 30 MHz. Therefore, the output spectrum of the proposed comb-generator is quite stable. The proposed comb-generator can find applications in calibration systems such as a reference signal generator for checking emission test systems or performing round robin tests.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123899529","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522988
S. Tuan, Chun-Chin Sun, Hsien-Kwei Ho, H. Chou
This paper presents a non-periodic grating technique to reduce the sidelobe levels of radiation from a reflector antenna. In particular, the theoretic foundation is developed in this paper to examine the possibility of using the grating screen to reduce the sidelobe levels. The grating screens are placed over the reflector's aperture so that it can eliminate the waves that are negative to the sidelobe suppression. Theoretic formulation as well as demonstrating examples will be presented to validate the feasibility.
{"title":"On the sidelobe reduction of reflector antenna's radiation by using non-periodic grating apertures","authors":"S. Tuan, Chun-Chin Sun, Hsien-Kwei Ho, H. Chou","doi":"10.1109/APEMC.2016.7522988","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522988","url":null,"abstract":"This paper presents a non-periodic grating technique to reduce the sidelobe levels of radiation from a reflector antenna. In particular, the theoretic foundation is developed in this paper to examine the possibility of using the grating screen to reduce the sidelobe levels. The grating screens are placed over the reflector's aperture so that it can eliminate the waves that are negative to the sidelobe suppression. Theoretic formulation as well as demonstrating examples will be presented to validate the feasibility.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123473848","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522797
Hong-xing Zheng
To analyze electromagnetic wave propagation in a building, a pseudospectral time-domain (PSTD) algorithm has been used for a flexible treatment of internal heterogeneous mixture of homogeneous and periodic walls. Unconditionally stable technique, the alternating direction implicit (ADI) scheme, has been developed combining with the PSTD. The electromagnetic reflection and transmission in a periodic arrangement as well as in corner and terminal locations are approached in two-dimensional around 2.40 GHz. Complex indoor environment has been simulated by using the ADI-PSTD technique, results are shown available.
{"title":"Indoor wireless channel analysis using alternating direction implicit pseudospectral time-domain method","authors":"Hong-xing Zheng","doi":"10.1109/APEMC.2016.7522797","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522797","url":null,"abstract":"To analyze electromagnetic wave propagation in a building, a pseudospectral time-domain (PSTD) algorithm has been used for a flexible treatment of internal heterogeneous mixture of homogeneous and periodic walls. Unconditionally stable technique, the alternating direction implicit (ADI) scheme, has been developed combining with the PSTD. The electromagnetic reflection and transmission in a periodic arrangement as well as in corner and terminal locations are approached in two-dimensional around 2.40 GHz. Complex indoor environment has been simulated by using the ADI-PSTD technique, results are shown available.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124541343","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522978
Zhang Lei, Deng Chen, Zhang Xiangming, Li Jianxuan, Meng Jin
The non-contact eddy current sensor was used spread in the inverter- motor driving system to measure the vibration and rotate speed of the motor. Since there are different kinds of electromagnetic interferences in high-power inverter-motor driving system, the measurement results should be affected by the electromagnetic interference. A rotating speed sensor was researched in this paper, the interference effects were analyzed and the solutions were proposed. The analysis was verified by the experiment.
{"title":"Research of electromagnetic interference on the eddy current sensor in the inverter-motor driving system","authors":"Zhang Lei, Deng Chen, Zhang Xiangming, Li Jianxuan, Meng Jin","doi":"10.1109/APEMC.2016.7522978","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522978","url":null,"abstract":"The non-contact eddy current sensor was used spread in the inverter- motor driving system to measure the vibration and rotate speed of the motor. Since there are different kinds of electromagnetic interferences in high-power inverter-motor driving system, the measurement results should be affected by the electromagnetic interference. A rotating speed sensor was researched in this paper, the interference effects were analyzed and the solutions were proposed. The analysis was verified by the experiment.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126317575","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522991
Yitao Liu, Jianchun Peng, Guibin Wang, Huaizhi Wang, K. See
Power quality and electromagnetic interference (EMI) control are mandatory for any grid-connected power converter. This paper describes a procedure for LCL filter design in a grid-connected high power density converter (HPDC) with the objective to meet both power quality and EMI requirements. The performance of the LCL filter is simulated and then validated experimentally.
{"title":"LCL filter design and analysis of grid-connected converter for power quality and EMI compliance","authors":"Yitao Liu, Jianchun Peng, Guibin Wang, Huaizhi Wang, K. See","doi":"10.1109/APEMC.2016.7522991","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522991","url":null,"abstract":"Power quality and electromagnetic interference (EMI) control are mandatory for any grid-connected power converter. This paper describes a procedure for LCL filter design in a grid-connected high power density converter (HPDC) with the objective to meet both power quality and EMI requirements. The performance of the LCL filter is simulated and then validated experimentally.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126489843","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522894
Qihui Zhou, Peiguo Liu, Chenxi Liu, Ning Zhao, Run-dong Zheng
In this article, a dual-band energy selective surface (ESS) which allows normal signal to pass and shields high power microwave (HPM) in the operating bands is designed. The ESS is consisted of hexagonal spiral patch and pin diode arrays. The state of pin diodes converts in the light of intensity of incident wave, and the ESS shapes reflective barrier to cut off HPM when diodes are off. The article evaluates the property of energy selectivity by measure the transmission coefficient of the ESS. Simulation results are presented and show that ESS has the ingredient of energy law pass over the frequency band from 3.45 GHz to 3.95 GHz and 8.3 GHz to 8.9 GHz, and the property is still reliable when the incident angle changes.
{"title":"A dual-band energy selective surface with hexagonal spiral structure","authors":"Qihui Zhou, Peiguo Liu, Chenxi Liu, Ning Zhao, Run-dong Zheng","doi":"10.1109/APEMC.2016.7522894","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522894","url":null,"abstract":"In this article, a dual-band energy selective surface (ESS) which allows normal signal to pass and shields high power microwave (HPM) in the operating bands is designed. The ESS is consisted of hexagonal spiral patch and pin diode arrays. The state of pin diodes converts in the light of intensity of incident wave, and the ESS shapes reflective barrier to cut off HPM when diodes are off. The article evaluates the property of energy selectivity by measure the transmission coefficient of the ESS. Simulation results are presented and show that ESS has the ingredient of energy law pass over the frequency band from 3.45 GHz to 3.95 GHz and 8.3 GHz to 8.9 GHz, and the property is still reliable when the incident angle changes.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126200583","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 : 2016-05-17DOI: 10.1109/APEMC.2016.7522922
Rajib Goswami, Shuo Wang
For a Vienna rectifier, the phase-leg's pulsating voltage is the source for the input current ripple and Electromagnetic Interference (EMI) noise. Double Fourier integral transform is commonly used to determine the harmonic spectrum of the phase-leg voltage so as to predict EMI noise. For three-phase, three-level rectifiers, like the Vienna rectifier, this process can be very cumbersome and can vary depending on the modulation scheme used. Moreover it doesn't give direct estimate of the current spectrum which is needed for filter design as the limits of noise current spectra are given in many EMI standards. Hence, for designing the filter for the DM noise, detailed analysis of the DM ripple current is very important. In this paper, the DM ripple current in Vienna type rectifiers using a dual stacked carrier based modulation scheme is investigated and the technique to predict the worst current ripple is developed. Based on this worst current ripple, the method of finding the attenuation requirements for EMI filter design is also described. Simulations were conducted to validate the worst current ripple predicted using the proposed technique.
{"title":"Differential mode (DM) current ripple EMI noise analysis for three-phase Vienna type rectifiers","authors":"Rajib Goswami, Shuo Wang","doi":"10.1109/APEMC.2016.7522922","DOIUrl":"https://doi.org/10.1109/APEMC.2016.7522922","url":null,"abstract":"For a Vienna rectifier, the phase-leg's pulsating voltage is the source for the input current ripple and Electromagnetic Interference (EMI) noise. Double Fourier integral transform is commonly used to determine the harmonic spectrum of the phase-leg voltage so as to predict EMI noise. For three-phase, three-level rectifiers, like the Vienna rectifier, this process can be very cumbersome and can vary depending on the modulation scheme used. Moreover it doesn't give direct estimate of the current spectrum which is needed for filter design as the limits of noise current spectra are given in many EMI standards. Hence, for designing the filter for the DM noise, detailed analysis of the DM ripple current is very important. In this paper, the DM ripple current in Vienna type rectifiers using a dual stacked carrier based modulation scheme is investigated and the technique to predict the worst current ripple is developed. Based on this worst current ripple, the method of finding the attenuation requirements for EMI filter design is also described. Simulations were conducted to validate the worst current ripple predicted using the proposed technique.","PeriodicalId":358257,"journal":{"name":"2016 Asia-Pacific International Symposium on Electromagnetic Compatibility (APEMC)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126214318","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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