Copyright © 2008 The Institute of Electronics, Information and Communication Engineers
Regular Section -- Letters -- Wireless Communication Technologies |
Evaluation of Digital-to-RF Upconversion Transmitter Using Harmonic Images of DAC Output
1 The author is with the Department of International Development Engineering, Tokyo Institute of Technology, Tokyo, 152-8552 Japan. E-mail: mskim{at}ide.titech.ac.jp, 2 The authors are with the Department of Electrical & Computer Engineering, Yokohama National University, Yokohama-shi, 240-8501 Japan.
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.
Key Words: DAC, harmonic, SDR, sinc distortion, up-conversion, EVM
Manuscript received August 28, 2007. Manuscript revised November 30, 2007.
Reference
[1] J. Mitola, "The software radio architecture," IEEE Commun. Mag., vol.33, no.5, pp.26–38, May 1995. [2] 12-Bit, 2.3 Gsps Multi-Nyquist DAC (MAX19692) Datasheet, Maxim Integrated Products, Inc., 2006, Web documents are available at http://www.maxim-ic.com [3] M. Choe, K. Baek, and M. Teshome, "A 1.6-GS/s 12-bit return-to-zero GaAs RF DAC for multiple nyquist operation," IEEE J. Solid-State Circuits, vol.40, no.12, pp.2456–2468, Dec. 2005. [4] A. Bugeja, B. Song, P. Rakers, and S. Gillig, "A 14-b 100-MS/s CMOS DAC designed for spectral performance," IEEE J. Solid-State Circuits, vol.34, no.12, pp.1719–1731, Dec. 1999. [5] A. Oppenheim and R. Schafer, Discrete-time Signal Processing, Prentice-Hall, 1989. [6] R. Hassun, M. Flaherty, R. Matreci, and M. Taylor, "Effective evaluation of link quality using error vector magnitude techniques," Proc. IEEE Wireless Commun. Conf., pp.89–94, Aug. 1997. [7] N. Kurosawa, H. Kobayashi, H. Kogure, T. Komuro, and H. Sakayori, "Sampling clock jitter effects in digital-to-analog converters," Measurement, Special Issue on DAC Modelling and Testing, vol.31, no.3, pp.187–199, March 2002. [8] K. Doris, D. Leenaerts, and A. van Roermund, "Time non linearities in D/A converters," Proc. European Conf. on Circuit Theory and Design, vol.3, pp.353–356, Aug. 2001. [9] M. Kosunen, Digital Signal Processing and Digital-to-Analog Converters for Wide-Band Transmitters, Doctoral Dissertation, Helsinki University of Technology, 2006. [10] T. Nakabayashi, M. Shinozawa, and H. Arai, "Transmitting system using alias harmonic components of output signal of DAC," Proc. 36th EuMC, Sept. 2006.
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