Two-stage correction for wideband wireless signal generators with time-interleaved digital-to-analog-converters

Author

Youngcheol Park ; Remley, Kate A.

Author_Institution

Hankuk Univ. of Foreign Studies, Seoul, South Korea

fYear

2014

fDate

6-6 June 2014

Firstpage

1

Lastpage

4

Abstract

We present a correction technique for arbitrary waveform generators that utilize time-interleaved digital-to-analog converters. By correcting non-ideal responses of the digital-to-analog converters, the overall signal quality of the source can be improved. To verify this technique, the improvement in a 64-quadrature-amplitude-modulated waveform with a bandwidth of 1.25 GHz was evaluated. The error vector magnitude of the source was improved from 7.8 % to 0.7% with the proposed corrections.

Keywords

UHF circuits; digital-analogue conversion; quadrature amplitude modulation; waveform generators; 64-quadrature-amplitude-modulated waveform; arbitrary waveform generator; bandwidth 1.25 GHz; error vector magnitude; signal quality; time-interleaved digital-to-analog-converter; two-stage correction technique; wideband wireless signal generator; Bandwidth; Frequency measurement; Frequency modulation; Frequency response; NIST; Signal generators; Wireless communication; Millimeter-wave wireless communications; modulated signal; signal generator; wireless systems;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Measurement Conference (ARFTG), 2014 83rd ARFTG

Conference_Location

Tampa, FL

Type

conf

DOI

10.1109/ARFTG.2014.6899517

Filename

6899517