Open AccessStudy on Dielectric Resonator Antenna with Annular Patch for High Gain and Large Bandwidth
Author(s) -
Feng Kuisheng,
Li Na,
Meng Qingwei,
Wang Yongfeng,
Zhang Jingwei
Publication year - 2015
Publication title -
chinese journal of electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.267
H-Index - 25
eISSN - 2075-5597
pISSN - 1022-4653
DOI - 10.1049/cje.2015.10.034
Subject(s) - high gain antenna , bandwidth (computing) , antenna gain , dielectric resonator antenna , standing wave ratio , dielectric , materials science , resonator , dielectric resonator , microstrip antenna , wideband , patch antenna , optics , optoelectronics , physics , antenna (radio) , telecommunications , antenna efficiency , computer science
A new high‐gain cylindrical Dielectric resonator antenna (DRA) with a large bandwidth is proposed. A cylindrical Dielectric resonator (DR), a double‐annular patch and a metallic cylinder are used to obtain a large bandwidth and a high gain. The mode TM 12 excited in the patch is used to enhance the gain of the DRA, and the cavity formed by the metallic cylinder provides a further higher gain and a larger bandwidth. The measured results demonstrate that the proposed DRA achieves a large bandwidth of 23% from 5.3 to 6.8GHz with VSWR less than two and a high gain around 11 dBi.