Jing Tao, Xiangxiang Li, Shiqian Song, Chenggang Cai
{"title":"基于n位lcp的太赫兹反射阵的比较分析","authors":"Jing Tao, Xiangxiang Li, Shiqian Song, Chenggang Cai","doi":"10.1109/APCAP50217.2020.9246152","DOIUrl":null,"url":null,"abstract":"Due to the tunable dielectric constant of liquid crystal polymer (LCP), double dipole LCP-based phase shifter exhibits wide rang phase shift of more than 360° at 0.34 THz. Based on this precondition, a n-bit digital phase shifter concept is proposed. The n-bit (n=1, 2, 3) LCP-based reconfigurable reflectarray (RRA) at 0.34 THz composed of 30×30 elements has been designed and analyzed. The radiation patterns of the RRAfor beam scanning at 15° and 45° are presented. Compared with 1-bit RRA, radiation patterns, such as main lobe direction, gain and side lobe level of the RRA are significantly improved when n=2, 3. However, 2-bit and 3-bit RRAs show similar radiation patterns. Due to 2 bits RRA only needs 4 states, the structure of 2-bit RRA is more simpler, which indicates 2-bit RRA is a low-cost solution to THz beam scanning array.","PeriodicalId":146561,"journal":{"name":"2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2020-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Comparative Analysis of n-bit LCP-based Terahertz Reflectarray\",\"authors\":\"Jing Tao, Xiangxiang Li, Shiqian Song, Chenggang Cai\",\"doi\":\"10.1109/APCAP50217.2020.9246152\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Due to the tunable dielectric constant of liquid crystal polymer (LCP), double dipole LCP-based phase shifter exhibits wide rang phase shift of more than 360° at 0.34 THz. Based on this precondition, a n-bit digital phase shifter concept is proposed. The n-bit (n=1, 2, 3) LCP-based reconfigurable reflectarray (RRA) at 0.34 THz composed of 30×30 elements has been designed and analyzed. The radiation patterns of the RRAfor beam scanning at 15° and 45° are presented. Compared with 1-bit RRA, radiation patterns, such as main lobe direction, gain and side lobe level of the RRA are significantly improved when n=2, 3. However, 2-bit and 3-bit RRAs show similar radiation patterns. Due to 2 bits RRA only needs 4 states, the structure of 2-bit RRA is more simpler, which indicates 2-bit RRA is a low-cost solution to THz beam scanning array.\",\"PeriodicalId\":146561,\"journal\":{\"name\":\"2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-08-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/APCAP50217.2020.9246152\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2020 9th Asia-Pacific Conference on Antennas and Propagation (APCAP)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/APCAP50217.2020.9246152","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Comparative Analysis of n-bit LCP-based Terahertz Reflectarray
Due to the tunable dielectric constant of liquid crystal polymer (LCP), double dipole LCP-based phase shifter exhibits wide rang phase shift of more than 360° at 0.34 THz. Based on this precondition, a n-bit digital phase shifter concept is proposed. The n-bit (n=1, 2, 3) LCP-based reconfigurable reflectarray (RRA) at 0.34 THz composed of 30×30 elements has been designed and analyzed. The radiation patterns of the RRAfor beam scanning at 15° and 45° are presented. Compared with 1-bit RRA, radiation patterns, such as main lobe direction, gain and side lobe level of the RRA are significantly improved when n=2, 3. However, 2-bit and 3-bit RRAs show similar radiation patterns. Due to 2 bits RRA only needs 4 states, the structure of 2-bit RRA is more simpler, which indicates 2-bit RRA is a low-cost solution to THz beam scanning array.