8-GHz bandwidth spatial-sampling modules for ultra-fast random-signal analysis

The design of a novel large bandwidth random-signal analyzer with 20-Gs/s sampling frequency and 60-dB dynamic range is discussed. Using the principle of nonsimultaneous spatial sampling, its realization, led through several 0.18-μm GaAs PHEMT MMIC, authorizes the microwave characterization of a first demonstrator, which allows a temporal analysis depth of 1.2 ns and a risetime as fast as 20 ps. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 44: 292–295, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20614