Title :
Design of a Multilayer X-/Ka-Band Frequency-Selective Surface-Backed Reflectarray for Satellite Applications
Author :
Chaharmir, Mohammad Reza ; Shaker, Jafar
Author_Institution :
Commun. Res. Centre Canada, Ottawa, ON, Canada
Abstract :
A dual-band X-/Military Ka-band (MKa-band) single-aperture reflectarray structure that transmits and receives at both MKaand X-bands is introduced in this paper. Frequency selective surface (FSS) is used as the ground plane for the MKaband reflectarray. A cascade configuration of FSS-backed reflectarrays is designed for each of the receive and transmit bands of MKa-band to reduce the coupling between the elements of these two bands when they are etched on the same substrate. Additional FSS´s are implemented to further enhance the isolation between the bands. The MKa-band elements are located on top of the X-band reflectarray that is composed of elements etched on a perfect electric conductor (PEC)-backed ground plane. The reflectarray elements also convert circular to linear polarization which results in a simplified feed structure.
Keywords :
frequency selective surfaces; microwave antenna arrays; military communication; reflectarray antennas; satellite communication; feed structure; linear polarization; multilayer Ka-band frequency-selective surface-backed reflectarray; multilayer X-band frequency-selective surface-backed reflectarray; perfect electric conductor-backed ground plane; single-aperture reflectarray structure; Antenna measurements; Dual band; Feeds; Frequency selective surfaces; Gratings; Reflection; Substrates; Aperture efficiency; circular polarization dual-band; frequency selective surface; frequency-selective surface??(FSS); reflectarray;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2015.2389838
