Authors
Qi Luo, Steven Gao, Chong Zhang, Dawei Zhou, Tobias Chaloun, Wolfgang Menzel, Volker Ziegler, Mohammed Sobhy
Publication date
2015/2/6
Journal
IEEE Transactions on Antennas and Propagation
Volume
63
Issue
4
Pages
1365-1374
Publisher
IEEE
Description
This paper presents a folded reflectarray designed for Ka-band satellite communication applications. The array element is a dual-polarized slot antenna with multilayered PCB structure and is designed to operate at 29.5-30.8 GHz band for both transmitting and receiving with single linear polarization. Vias are employed to suppress the surface wave propagation and reduce the mutual coupling between adjacent array elements, for achieving a reflectarray with a wide scan angle range. An equivalent circuit model for the array element is developed and it agrees well with the EM simulation results. Several passive demonstrators consisting of 116 elements spaced by 0.5λ 30 GHz were fabricated and measured. The experimental results show that the presented reflectarray is capable of steering the beam up to ±60° in both Eand H-planes with low cross-polarization level.
Scholar articles
Q Luo, S Gao, C Zhang, D Zhou, T Chaloun, W Menzel… - IEEE Transactions on Antennas and Propagation, 2015