Title :
A novel wideband digital power amplifier and transmitter architecture for multimode handsets
Author :
Nagle, Pierce ; Husseini, Radwan M. ; Grebennikov, Andrei ; Ahmed, Walid K M ; McGrath, Finbarr
Author_Institution :
Tyco Electron., Cork, Ireland
Abstract :
The paper introduces a novel power amplifier architecture: "the wideband digital power amplifier" (DPA). This device provides RF power amplification, phase/amplitude combining, and wideband amplitude modulation. The DPA is complemented with a digital modulator to realize a compelling digital transmitter (DTx) architecture. The basic functionality and advantages of the DPA and transmitter are presented. In addition, measured results for cdma2000 are provided to demonstrate the performance capabilities of the DPA/DTx.
Keywords :
3G mobile communication; amplitude modulation; digital circuits; digital radio; mobile handsets; modulators; power amplifiers; radio transmitters; radiofrequency amplifiers; wideband amplifiers; RF power amplification; amplitude combining; cdma2000; digital modulator; digital transmitter architecture; multimode handsets; phase combining; wideband amplitude modulation; wideband digital power amplifier architecture; Amplitude modulation; Broadband amplifiers; Delta modulation; Digital integrated circuits; Digital modulation; Power amplifiers; Radio frequency; SAW filters; Telephone sets; Transmitters;
Conference_Titel :
Radio and Wireless Conference, 2004 IEEE
Print_ISBN :
0-7803-8451-2
DOI :
10.1109/RAWCON.2004.1389100
