Title :
Pulse shaping in time-modulated antenna array
Author :
Bekele, Ephrem T. ; Rocca, Paolo ; Poli, Lorenzo ; D´Urso, Michele ; Massa, A.
Author_Institution :
ELEDIA Res. Center @ DISI, Univ. of Trento, Povo, Italy
Abstract :
The possibility to shape the pulses modulating the static array excitations has been considered as an additional degree of freedom in the design of time modulated linear arrays. Two different kinds of pulses have been taken into account, namely trapezoidal and TDRC pulses, characterized by a linear and non-linear transition between the on and off states. The numerical results has shown that the shaping of the modulating waveforms allow to yield a significant reduction of the sideband losses as compared to ideal rectangular pulses.
Keywords :
linear antenna arrays; pulse modulation; pulse shaping; TDRC pulse; degree of freedom; nonlinear transition; pulse shaping; pulses modulating; sideband loss; static array excitation; time modulated linear array; time-modulated antenna array; trapezoidal pulse; Amplitude modulation; Arrays; Frequency modulation; Harmonic analysis; Radio frequency; Shape; Switches;
Conference_Titel :
Wireless Information Technology and Systems (ICWITS), 2012 IEEE International Conference on
Conference_Location :
Maui, HI
Print_ISBN :
978-1-4673-0947-9
DOI :
10.1109/ICWITS.2012.6417820
