Title :
Sideband Radiation Level Suppression in Time-Modulated Array by Nonuniform Period Modulation
Author :
Chong He ; Hangchen Yu ; Xianling Liang ; Junping Geng ; Ronghong Jin
Author_Institution :
Dept. of Electron. Eng., Shanghai Jiao Tong Univ., Shanghai, China
Abstract :
A novel sideband radiation (SR) level suppression method for the time-modulated array (TMA) is proposed. By modulating their front-end RF switches with nonuniform periods, the SR level of the TMA can be remarkably suppressed, compared to using uniform periods. Numeric simulations are brought out to examine the performance of the proposed approach, and the comparison to the existing SR level suppression methods is provided. A simple S-band eight-element linear TMA is constructed and tested to verify its effectiveness.
Keywords :
amplitude modulation; antenna radiation patterns; RF switches; S-band eight-element linear TMA; SR level suppression method; nonuniform period modulation; sideband radiation level suppression method; time-modulated array; Antennas; Arrays; Frequency modulation; Harmonic analysis; Power system harmonics; Radio frequency; Sideband radiation (SR); sidelobe level (SLL); time-modulated array (TMA);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2014.2373639
