{"title":"探地雷达指数梯度TEM喇叭天线设计","authors":"Ying Suo, Feixiang Qi, Wei Li","doi":"10.23919/ISAP47258.2021.9614604","DOIUrl":null,"url":null,"abstract":"Ground Penetrating Radar (GPR) technology is a kind of Ultra-wideband technology for underground targets. In this paper, an ultra-wideband transverse electromagnetic wave (TEM) horn antenna is designed. The size of this antenna is effectively reduced by adopting an exponentially graded horn structure, composite loading. Adding a metal reflector near the feeder further improves the antenna radiation directivity. The simulation results show that the designed antenna size is 0.50m×0.49m×0.33m (0.21×0.20×0.13λ). In the range of 0.125~3.1GHz, the voltage standing wave ratio is below 2, and the bandwidth ratio is 24.8:1. The gain is higher than 11.2dB above 1GHz.","PeriodicalId":132941,"journal":{"name":"2021 International Symposium on Antennas and Propagation (ISAP)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2021-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Design of exponential gradient TEM horn antenna for ground penetrating radar\",\"authors\":\"Ying Suo, Feixiang Qi, Wei Li\",\"doi\":\"10.23919/ISAP47258.2021.9614604\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Ground Penetrating Radar (GPR) technology is a kind of Ultra-wideband technology for underground targets. In this paper, an ultra-wideband transverse electromagnetic wave (TEM) horn antenna is designed. The size of this antenna is effectively reduced by adopting an exponentially graded horn structure, composite loading. Adding a metal reflector near the feeder further improves the antenna radiation directivity. The simulation results show that the designed antenna size is 0.50m×0.49m×0.33m (0.21×0.20×0.13λ). In the range of 0.125~3.1GHz, the voltage standing wave ratio is below 2, and the bandwidth ratio is 24.8:1. The gain is higher than 11.2dB above 1GHz.\",\"PeriodicalId\":132941,\"journal\":{\"name\":\"2021 International Symposium on Antennas and Propagation (ISAP)\",\"volume\":\"116 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2021-10-19\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2021 International Symposium on Antennas and Propagation (ISAP)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.23919/ISAP47258.2021.9614604\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2021 International Symposium on Antennas and Propagation (ISAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.23919/ISAP47258.2021.9614604","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Design of exponential gradient TEM horn antenna for ground penetrating radar
Ground Penetrating Radar (GPR) technology is a kind of Ultra-wideband technology for underground targets. In this paper, an ultra-wideband transverse electromagnetic wave (TEM) horn antenna is designed. The size of this antenna is effectively reduced by adopting an exponentially graded horn structure, composite loading. Adding a metal reflector near the feeder further improves the antenna radiation directivity. The simulation results show that the designed antenna size is 0.50m×0.49m×0.33m (0.21×0.20×0.13λ). In the range of 0.125~3.1GHz, the voltage standing wave ratio is below 2, and the bandwidth ratio is 24.8:1. The gain is higher than 11.2dB above 1GHz.
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