Digital amplitude modulation transmitter with pulse width modulating RF drive (US Patent 7369819)

Patent number: 7369819 Kind code: B2 Granted: 2008-05-06 Filed: 2005-04-14 Inventors: Ky Thoai Luu (Victor, NY, US) Assignees: Harris Corporation (Melbourne, FL, US)

Abstract

A digital amplitude modulation (AM) transmitter with pulse width modulating RF drive is presented. A plurality of RF amplifiers, each, when turned on, amplifies an applied RF drive signal by the same amount to provide a unit step RF output. An encoder supplies turn-on signals to turn on a number of the RF amplifiers