Open AccessAperture efficiency improvement of folded reflectarray using rectangle and split‐ring combined element
Author(s) -
Jeong J.G.,
Park N.J.,
Yoon Y.J.
Publication year - 2018
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2018.1194
Subject(s) - rectangle , ring (chemistry) , materials science , optics , aperture (computer memory) , electronic engineering , optoelectronics , structural engineering , engineering , geometry , physics , mathematics , chemistry , organic chemistry
In this Letter, the aperture efficiency of a folded reflectarray is improved using a proposed element. This element is designed with a simple structure using a rectangle and split‐ring combined structure to obtain a more accurate reflection phase for the folded reflectarray than that of a conventional element in the millimetre wave frequency. Thus, a high aperture efficiency of 55.04% is obtained at 77 GHz. The element design concept and procedure are presented in detail.