TY  - GEN
AV  - public
ID  - elediasc12444
A1  - Poli, Lorenzo
A1  - Rocca, Paolo
A1  - Oliveri, Giacomo
A1  - Lizzi, Leonardo
A1  - Massa, Andrea
N2  - In the last years, there has been a renewed interest towards the use of time-modulated arrays (TMAs) thanks to the simplicity in reconfiguring the average pattern of the antenna just modifying the on-off sequence controlling a set of radio-frequency (RF) switches. TMAs have been originally introduced for the generation of low and ultra-low sidelobe patterns for radar arrays [1] thus avoiding the implementation of impracticable excitation tapering with high dynamic range ratios. However, they haven?t received a large diffusion because of the power losses due to the generation of harmonic radiation at multiples of the time-modulation frequency. As a matter of fact, the periodic modulation of the static excitations causes a shift of the radiated power in the sideband radiation (SR) [2] with a consequent reduction of the directivity of the pattern at the carrier frequency.
UR  - http://www.eledia.org/students-reports/444/
Y1  - 2011/01//
TI  - Antenna Array Synthesis Through Time Modulation
ER  -