{"title":"3d打印宽带矩形介电谐振器天线","authors":"Zhen-Xing Xia, K. Leung","doi":"10.1109/PIERS-Fall48861.2019.9021330","DOIUrl":null,"url":null,"abstract":"A 3D-printed wideband rectangular dielectric resonator antenna (DRA) with omnidirectional radiation patterns is investigated. It is a multilayered design with four concentric square dielectric rings, which have progressively decreased effective dielectric constants in the azimuthal direction. To facilitate the 3D printing, a unit cubic cell that can be easily adjusted to provide different effective dielectric constants is used in our design. Three quasi transverse magnetic (TM) modes (quasi-TM01δ, quasi-TM02δ, and quasi-TM03δ) of the DRA are simultaneously excited by a centrally penetrated coaxial probe. By merging these quasi-TM modes together, the DRA with a wide impedance bandwidth is obtained. For demonstration, a prototype working in C-band is designed and printed. Measured results show that our design has a wide 10 dB impedance bandwidth of 44.8% (5.20-8.20 GHz), fully covering the current 5.8 GHz WLAN band (5.725-5.875 GHz). Also, fairly stable radiation patterns can be observed across the impedance passband (5.20-8.20 GHz).","PeriodicalId":197451,"journal":{"name":"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2019-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":"{\"title\":\"3D-printed Wideband Rectangular Dielectric Resonator Antenna\",\"authors\":\"Zhen-Xing Xia, K. Leung\",\"doi\":\"10.1109/PIERS-Fall48861.2019.9021330\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"A 3D-printed wideband rectangular dielectric resonator antenna (DRA) with omnidirectional radiation patterns is investigated. It is a multilayered design with four concentric square dielectric rings, which have progressively decreased effective dielectric constants in the azimuthal direction. To facilitate the 3D printing, a unit cubic cell that can be easily adjusted to provide different effective dielectric constants is used in our design. Three quasi transverse magnetic (TM) modes (quasi-TM01δ, quasi-TM02δ, and quasi-TM03δ) of the DRA are simultaneously excited by a centrally penetrated coaxial probe. By merging these quasi-TM modes together, the DRA with a wide impedance bandwidth is obtained. For demonstration, a prototype working in C-band is designed and printed. Measured results show that our design has a wide 10 dB impedance bandwidth of 44.8% (5.20-8.20 GHz), fully covering the current 5.8 GHz WLAN band (5.725-5.875 GHz). Also, fairly stable radiation patterns can be observed across the impedance passband (5.20-8.20 GHz).\",\"PeriodicalId\":197451,\"journal\":{\"name\":\"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2019-12-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/PIERS-Fall48861.2019.9021330\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2019 Photonics & Electromagnetics Research Symposium - Fall (PIERS - Fall)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/PIERS-Fall48861.2019.9021330","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
A 3D-printed wideband rectangular dielectric resonator antenna (DRA) with omnidirectional radiation patterns is investigated. It is a multilayered design with four concentric square dielectric rings, which have progressively decreased effective dielectric constants in the azimuthal direction. To facilitate the 3D printing, a unit cubic cell that can be easily adjusted to provide different effective dielectric constants is used in our design. Three quasi transverse magnetic (TM) modes (quasi-TM01δ, quasi-TM02δ, and quasi-TM03δ) of the DRA are simultaneously excited by a centrally penetrated coaxial probe. By merging these quasi-TM modes together, the DRA with a wide impedance bandwidth is obtained. For demonstration, a prototype working in C-band is designed and printed. Measured results show that our design has a wide 10 dB impedance bandwidth of 44.8% (5.20-8.20 GHz), fully covering the current 5.8 GHz WLAN band (5.725-5.875 GHz). Also, fairly stable radiation patterns can be observed across the impedance passband (5.20-8.20 GHz).