B. Cordill, S. A. Seguin, L. Cohen, J. de Graaf, L. Parent
{"title":"频率可控相控阵天线的频谱特性","authors":"B. Cordill, S. A. Seguin, L. Cohen, J. de Graaf, L. Parent","doi":"10.1109/ISEMC.2012.6350930","DOIUrl":null,"url":null,"abstract":"When considering phased array radar systems it is important to consider the possible differences in the spectral content of radar emissions when comparing boresight to off-boresight. This detail is important as it can accentuate potential electromagnetic interference (EMI) effects between radar and other devices competing for space in a crowded spectrum. In order to analyze the potential impact of off-boresight radar emissions to other electronic devices, a MATLAB and electromagnetic model of a simple eight element slotted waveguide linear array operating at 3.5 GHz was simulated with an element spacing of a half-wavelength. The model was stimulated utilizing continuous wave (CW), pulsed amplitude, and linear Frequency Modulated Continuous-Wave (FMCW) waveforms. The spectral content of these emissions in the far-field was assessed at a variety of angles with respect to boresight. It was concluded that the eletromagnetic emissions power may be under measured if out of band emissions of a waveguide slot array are measured only at boresight resulting in compliance testing issues. This could result in the interference to other electronic devices being underestimated.","PeriodicalId":197346,"journal":{"name":"2012 IEEE International Symposium on Electromagnetic Compatibility","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2012-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"4","resultStr":"{\"title\":\"Spectrum attributes of frequency-steerable phased array antennas\",\"authors\":\"B. Cordill, S. A. Seguin, L. Cohen, J. de Graaf, L. Parent\",\"doi\":\"10.1109/ISEMC.2012.6350930\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"When considering phased array radar systems it is important to consider the possible differences in the spectral content of radar emissions when comparing boresight to off-boresight. This detail is important as it can accentuate potential electromagnetic interference (EMI) effects between radar and other devices competing for space in a crowded spectrum. In order to analyze the potential impact of off-boresight radar emissions to other electronic devices, a MATLAB and electromagnetic model of a simple eight element slotted waveguide linear array operating at 3.5 GHz was simulated with an element spacing of a half-wavelength. The model was stimulated utilizing continuous wave (CW), pulsed amplitude, and linear Frequency Modulated Continuous-Wave (FMCW) waveforms. The spectral content of these emissions in the far-field was assessed at a variety of angles with respect to boresight. It was concluded that the eletromagnetic emissions power may be under measured if out of band emissions of a waveguide slot array are measured only at boresight resulting in compliance testing issues. This could result in the interference to other electronic devices being underestimated.\",\"PeriodicalId\":197346,\"journal\":{\"name\":\"2012 IEEE International Symposium on Electromagnetic Compatibility\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-11-12\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"4\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 IEEE International Symposium on Electromagnetic Compatibility\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ISEMC.2012.6350930\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE International Symposium on Electromagnetic Compatibility","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ISEMC.2012.6350930","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Spectrum attributes of frequency-steerable phased array antennas
When considering phased array radar systems it is important to consider the possible differences in the spectral content of radar emissions when comparing boresight to off-boresight. This detail is important as it can accentuate potential electromagnetic interference (EMI) effects between radar and other devices competing for space in a crowded spectrum. In order to analyze the potential impact of off-boresight radar emissions to other electronic devices, a MATLAB and electromagnetic model of a simple eight element slotted waveguide linear array operating at 3.5 GHz was simulated with an element spacing of a half-wavelength. The model was stimulated utilizing continuous wave (CW), pulsed amplitude, and linear Frequency Modulated Continuous-Wave (FMCW) waveforms. The spectral content of these emissions in the far-field was assessed at a variety of angles with respect to boresight. It was concluded that the eletromagnetic emissions power may be under measured if out of band emissions of a waveguide slot array are measured only at boresight resulting in compliance testing issues. This could result in the interference to other electronic devices being underestimated.