{"title":"Ultra-wideband scattering from resonant structures using optoelectronically switched antennas","authors":"K. Agi, L. Carin","doi":"10.1109/APS.1992.221419","DOIUrl":null,"url":null,"abstract":"Summary form only given. Planar antennas are photoconductively switched to generate and coherently detect ultrawideband (UWB), transient radiation. This radiation has a bandwidth from 5 to 70 GHz. The antennas are switched photoconductively using a 76-MHz train of 5-ps-duration, 527-nm-wavelength optical pulses generated from a frequency-doubled pulse-compressed mode-locked Nd-YLF laser. The UWB microwave and millimeter-wave radiation generated by these antennas is used to perform UWB transient scattering measurements from resonant targets. Prototype UWB time-domain scattering measurements have been performed using a unique table-top scattering facility. The experimental results are compared with theory. Particular attention is given to the late-time response of targets using such a system.<<ETX>>","PeriodicalId":289865,"journal":{"name":"IEEE Antennas and Propagation Society International Symposium 1992 Digest","volume":"25 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"1992-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Antennas and Propagation Society International Symposium 1992 Digest","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APS.1992.221419","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Summary form only given. Planar antennas are photoconductively switched to generate and coherently detect ultrawideband (UWB), transient radiation. This radiation has a bandwidth from 5 to 70 GHz. The antennas are switched photoconductively using a 76-MHz train of 5-ps-duration, 527-nm-wavelength optical pulses generated from a frequency-doubled pulse-compressed mode-locked Nd-YLF laser. The UWB microwave and millimeter-wave radiation generated by these antennas is used to perform UWB transient scattering measurements from resonant targets. Prototype UWB time-domain scattering measurements have been performed using a unique table-top scattering facility. The experimental results are compared with theory. Particular attention is given to the late-time response of targets using such a system.<>
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