Open AccessFocused transmitarray antenna using I‐shaped slot elements for microwave measurements
Author(s) -
Zhang Zheng,
Li Xiaoping,
Huang He,
Ouyang Wenchong,
Zhao Chengwei,
Sun Chao
Publication year - 2019
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
ISSN - 1350-911X
DOI - 10.1049/el.2019.2440
Subject(s) - antenna (radio) , microwave , optics , wavelength , materials science , antenna factor , radiation pattern , acoustics , electrical engineering , physics , telecommunications , engineering
A focused transmitarray antenna is presented in this Letter. To appraise the antenna, a quad‐metallic‐layer focused transmitarray antenna using I‐shaped all‐metal slot elements with an air gap between every two layers has been analysed, simulated and measured. It is illustrated that the electric field strength value at a distance of 3.1λ 0 from the transmitarray antenna reaches a maximum at 9.3 GHz operating frequency. It is the first time that a focal plane of approximately one wavelength has been achieved with a focused transmitarray antenna consisting of all‐metal elements. Simulated and measured results show that the proposed antenna has good concordance, making it possible for microwave measurements.