https://scholars.lib.ntu.edu.tw/handle/123456789/633769
標題: | Dual-Band Huygens Source Antennas With Partially Reflective Surfaces | 作者: | Kawdungta, S. Torrungrueng, D. Boonpoonga, A. HSI-TSENG CHOU |
關鍵字: | dual-band | gain enhancement | Huygens source antennas | partially reflective surfaces | 公開日期: | 1-十一月-2022 | 卷: | 57 | 期: | 11 | 來源出版物: | Radio Science | 摘要: | This paper presents an antenna architecture from Huygens sources placed in a middle cavity formed by a metal reflector and a partially reflective surface (PRS) of dielectric superstrates. The proposed antenna is excited by a pair of cross-feedings to produce two frequency resonances in reflection coefficients and radiate unidirectional patterns. In contrast to conventional designs, the proposed PRS-supported Huygens source antenna may effectively broaden the bandwidth and increase radiation gains with a low profile, including low cost. Simulation results show broadband radiation characteristics at 2.45 and 5 GHz bands, where the impedance bandwidths are in the ranges of 2.4–2.5 GHz and 4.8–5.8 GHz, respectively. In addition, the measurement results of the antenna prototype validate the simulation results in terms of reflection coefficients and radiation patterns. It is found that the gains are 5.0 dBi (2.45 GHz) and 3.0 dBi (5 GHz), where simulation and measurement results are agreed well for practical applications of wireless communications. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/633769 | ISSN: | 00486604 | DOI: | 10.1029/2022RS007602 |
顯示於: | 電機工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。