Title :
Error Vector Magnitude analysis for wideband QPSK and QAM six-port modulator
Author :
Yob, R.C. ; Seman, N. ; Ghazali, S.N.A.M.
Author_Institution :
Wireless Commun. Centre (WCC), Univ. Teknol. Malaysia, Skudai, Malaysia
Abstract :
This article presents an Error Vector Magnitude (EVM) analysis for two types operation of wideband six-port modulators, which are Quadrature Phase Shift Keying (QPSK) and Quadrature Amplitude Modulation (QAM). The simulation results of both modulators were accomplished via Agilent´s Design Systems (ADS) software. The EVM values then were determined through calculation using the simple mathematical equation at three different frequency points of 4.2, 5.8 and 6.85 GHz. The best performance was obtained at frequency point of 5.8GHz.
Keywords :
modulators; multiport networks; quadrature amplitude modulation; quadrature phase shift keying; Agilent Design Systems software; QAM; error vector magnitude analysis; frequency 4.2 GHz; frequency 5.8 GHz; frequency 6.85 GHz; quadrature amplitude modulation; quadrature phase shift keying; six-port modulator; wideband QPSK; Correlators; Frequency modulation; Phase shift keying; Quadrature amplitude modulation; Vectors; Error Vector Magnitude; Quadrature Amplitude Modulation; Quadrature Phase Shift Keying; six-port modulator; wideband;
Conference_Titel :
RF and Microwave Conference (RFM), 2011 IEEE International
Conference_Location :
Seremban, Negeri Sembilan
Print_ISBN :
978-1-4577-1628-7
DOI :
10.1109/RFM.2011.6168717
