Authors: Eduardo Martinez-de-Rioja, Jose A. Encinar , Rafael Florencio, Rafael R. Boix
Source: FERMAT, Volume 20, Communication 9, Mar-Apr., 2017
Abstract: This contribution describes the design of a printed reflectarray antenna to operate at 19.7 and 29.5 GHz with independent beams in H and V polarizations. A dual-frequency dual-polarization reflectarray cell, made of two stacked sets of parallel dipoles for each polarization, is proposed. The dipole lengths are adjusted to produce the required phase-shift at each frequency and each polarization. A 1.6-m reflectarray has been designed to produce two closely spaced beams in H and V polarizations. The simulated radiation patterns show a gain of 48.3 dBi at 19.7 GHz and 50.7 dBi at 29.5 GHz, with side-lobe levels close to -25 dB and low cross-polar radiation.
Keywords: Reflect array, dual polarization, dual frequency, parallel dipoles, Ka-band antennas, satellite antennas.
View PDFReflect array in K and Ka Bands with Independent Beams in Each Polarization