Open AccessElectronically tunable reflectarray element based on C‐patch coupled to delay line
Author(s) -
Nguyen Binh Duong,
Pham Kien Trung,
Tran VanSu,
Mai Linh,
Yonemoto Naruto,
Kohmura Akiko,
Futatsumori Shunichi
Publication year - 2014
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.2014.1345
Subject(s) - pin diode , phase (matter) , materials science , group delay and phase delay , line (geometry) , diode , optics , electronic circuit , reflection (computer programming) , element (criminal law) , optoelectronics , electrical engineering , physics , engineering , telecommunications , computer science , bandwidth (computing) , geometry , mathematics , quantum mechanics , law , political science , programming language
A reflectarray element with switchable phase shift for an electronically beam scanning reflectarray operating in the X‐band is presented. The element consists of multilayer printed circuits with a C‐patch coupled to a delay line through a ring slot. The phase shift is obtained by adjusting the length of the delay line. The element integrated with a pin diode to control the phase is assembled and measured in the X‐band. The experimental validations show a wide range of reflection phase with a quasi‐linear phase curve as well as a promising capability of changing the reflected phase between the ON and OFF states of the PIN diode.