@inproceedings{97e35e5e53964e3883d05b2c35e6b9c0,
title = "Comparison study of scalar and vector calibrations for wideband modulation signals",
abstract = "As generating the wideband modulation signals, the signal quality is usually degraded by many impairments such as I/Q path delay, non-flat RF frequency response and etc. In this paper, the authors propose two methods by using Keysight SystemVue{\texttrademark} to create the modulation signals and download them to an arbitrary waveform generator (AWG) for further calibration. To compare these two methods, a 64 QAM modulation waveform with a bandwidth over 1GHz was evaluated. The first method is multi-tone scalar calibration which improves the error vector magnitude (EVM) from 5.3 % to 4.2 %. The other one is vector calibration which improves the EVM from 5.3% to 1.1%. Finally, these signals are used to measure the system performance of an amplifier. As found, the modulation signal with vector calibration can show the more exact effect of AM/AM and AM/PM on EVM of the amplifier than scalar does.",
keywords = "64 QAM, arbitrary waveform generator, scalar calibration, vector calibration, wideband modulation",
author = "Lin, {Shuw Guann} and Chang, {Da Chiang} and Juang, {Ying Zong} and Chiou, {Hwann Kaeo}",
note = "Publisher Copyright: {\textcopyright} 2015 EuMA.; 12th European Radar Conference, EuRAD 2015 ; Conference date: 09-09-2015 Through 11-09-2015",
year = "2015",
month = dec,
day = "2",
doi = "10.1109/EuRAD.2015.7346353",
language = "???core.languages.en_GB???",
series = "2015 European Radar Conference, EuRAD 2015 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "525--528",
booktitle = "2015 European Radar Conference, EuRAD 2015 - Proceedings",
}