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June/July 2010 Defense Electronics Supplement [Test & Measurement] Apply An AWG For Power Design Arbitrary waveform generators (AWGs) are invaluable tools for creating a wide array of signals for testing RF and power electronic circuits. Modern AWGs are typically based on direct digital synthesizer (DDS) technology to convert digital input words into high-speed output waveforms by means of a high-resolution digitalto- analog converter (DAC). A basic AWG can provide a variety of standard waveforms, including pulse, square, ramp, triangle, and sine-wave... March/April 2010 Defense Electronics Supplement [Components] Generating Stable Voltage For Multiple Applications Voltage regulators and voltage references are essential to most electronic circuits, whether analog, digital, or a combination of the two. Although these circuits can appear deceivingly simple, much experience in worst-case analysis has shown them to also be the source of a large percentage of problems or issues as part of larger circuit designs. Often, these issues are due in part to a lack of understanding of the actual complexities of these seemingly... November 2009 [Computer-Aided Engineering] Simulating RF Tuned Stages Assessing post-production- tuning (PPT) elements should be part of any RF worstcase circuit analysis (WCCA). Unfortunately, PPT elements are often omitted or incorrectly incorporated into an analysis, even though including such tuning elements into a computer-aidedengineering (CAE) model is often a simple task. Correctly accounting for PPT elements depends on the ability to define the PPT procedure and to mathematically define the relationships ... |
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