07 Aug '17, 12pm

Advanced DACs Bring RF Signal Generation to Light

Advanced DACs Bring RF Signal Generation to Light

Generating complex RF signals traditionally involves vector signal generators (VSGs) with in-phase quadrature (I/Q) modulators and analog synthesizers. However, an alternative approach takes advantage of high-speed digital-to-analog converters (DACs), enabling complex signals to be directly generated at microwave frequencies. In the white paper “Overcoming RF Signal Generation Challenges with New DAC Technologies,” Tektronix discusses the technology behind direct RF complex signal generation. Furthermore, a technique is presented that can be utilized to expand the frequency range of generated signals. The white paper first explains that the common method of generating complex RF signals basically involves modulating a carrier signal. Essentially, a local-oscillator (LO) generates this carrier signal, which is modulated by a vector modulator. To illustrate this signal gener...

Full article: http://www.mwrf.com/test-measurement/advanced-dacs-bring-...

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