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IEICE TRANSACTIONS on Communications

A Digital-to-RF Converter Architecture Suitable for a Digital-to-RF Direct-Conversion Software Defined Radio Transmitter

Takafumi YAMAJI, Akira YASUDA, Hiroshi TANIMOTO, Yasuo SUZUKI

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Summary :

An architecture for a digital-to-RF converter for a software defined radio (SDR) transmitter is proposed. The ideal hardware architecture for an SDR is a digital-signal to RF-signal direct conversion transmitter. However no conventional digital-to-analog converter (DAC) has converted over 1-GHz RF signal with enough resolution, in the present condition. In this paper, a digital-to-RF direct converter architecture using a ΔΣ modulation technique is proposed for the amplitude-phase modulated signal. The experimental results show that the proposed direct converter outputs a sufficiently accurate signal.

Publication
IEICE TRANSACTIONS on Communications Vol.E83-B No.6 pp.1254-1260
Publication Date
2000/06/25
Publicized
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DOI
Type of Manuscript
Special Section PAPER (Special Issue on Software Defined Radio and Its Technologies)
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