Title :
Performance Evaluations of Microwave Power Amplifiers for Complex Digital Communication Systems
Author :
Huang, Chien-Chang ; Chen, Kuan-Yu
Author_Institution :
Dept. of Commun. Eng., Yuan Ze Univ., Taoyuan
Abstract :
This paper presents the performance evaluations of microwave power amplifiers (PAs) for complex digital communications based on the time-domain signal processing and the hybrid Volterra series. Modulation schemes included pi/4-DQPSK, 16-QAM, and OFDM formats are examined to show the influences due to the different peak-to-average-power-ratio (PAPR) features on the performances for the output power, adjacent-channel-power-ratio (ACPR), and error-vector-magnitudes (EVM). A figure-of-merit of PAs based on linearity and efficiency is presented to establish a criterion for choosing the best working condition
Keywords :
OFDM modulation; Volterra series; digital radio; microwave power amplifiers; quadrature amplitude modulation; quadrature phase shift keying; signal processing; time-domain analysis; 16-QAM; OFDM; adjacent-channel-power-ratio; complex digital communication systems; digital radio; digital signal processing; error-vector-magnitudes; figure-of-merit; hybrid Volterra series; microwave power amplifiers; nonlinear distortion; peak-to-average-power-ratio; performance evaluations; pi/4-DQPSK; time-domain signal processing; Digital communication; Digital signal processing; Employee welfare; Linearity; Microwave amplifiers; OFDM modulation; Peak to average power ratio; Power amplifiers; Power generation; Time domain analysis; Digital radio; Volterra series; digital signal processing; microwave power amplifiers; nonlinear distortion;
Conference_Titel :
Microwave Conference, 2006. 36th European
Conference_Location :
Manchester
Print_ISBN :
2-9600551-6-0
DOI :
10.1109/EUMC.2006.281414
