Evaluation of digital-to-RF upconversion transmitter using harmonic images of DAC output

被引：1

作者：

Kim, Minseok ^{[1
]}

Fuji, Tatsuo ^{[2
]}

Nakabayashi, Takafumi ^{[2
]}

Arai, Hiroyuki ^{[2
]}

机构：

[1] Tokyo Inst Technol, Dept Int Dev Engn, Tokyo 1528552, Japan

[2] Yokohama Natl Univ, Div Elect & Comp Engn, Yokohama, Kanagawa 2408501, Japan

来源：

IEICE TRANSACTIONS ON COMMUNICATIONS | 2008年 / E91B卷 / 04期

关键词：

DAC; harmonic; SDR; sine distortion; up-conversion; EVM;

D O I：

10.1093/ietcom/e91-b.4.1215

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

This letter evaluates a transmitter architecture using harmonic images in D/A conversion for generating RF signals. In generating harmonic images, the problems such as intermodulation distortion of DAC were investigated. We developed an evaluation system with two bandpass filter and a buffer amplifier. It was experimentally found that the RF signal up to around 400 MHz can be generated by a commonly used 14-bit DAC at the sampling rates of around 40 MHz with EVM less than 6.6%. This letter also presents a more feasible transmitter example having an IF stage with harmonic image extraction scheme and a typical RF upconversion stage.

引用

页码：1215 / 1218

页数：4

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