Author - Eric Newman

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Eric Newman	Write for Microwaves & RF
Eric Newman is an applications systems engineer in the RF and Networking Components Group at Analog Devices Inc. Prior to this work on wireless system design with ADI he worked as a hardware designer at Innovative Imaging Systems Inc. He holds a Masters of Science in Electrical Engineering, focusing on wireless communications, from the University of Massachusetts at Lowell. Email address: eric.newman@analog.com Web site: http://www.analog.com
2 results found for Eric Newman, displaying items 1 - 2

June 2009 [Test & Measurement]
Use A VSA To Analyze Quad Demod Noise Figure
In-phase/quadrature (I/Q) demodulators contribute to the noise figure of a direct-conversion receiver’s signal chain, although it can be difficult to predict the effects. While noisefigure meters can measure noise figures at microwave frequencies, they do not operate low enough for use at baseband frequencies. An alternative approach is to use a calibrated noise source and spectrum analyzer with preamplifier to measure the noise rise through the...

November 20, 2008 [Test & Measurement]
Assess Quadrature-Demodulator Noise Figure Using Vector Signal Analysis
In a direct-conversion signal chain, it is often difficult to accurately predict the noise-figure impact due to an in-phase/quadrature (IQ) demodulator. Typically, the noise figure is measured using a noise-figure meter. Yet those meters do not operate at low enough frequencies to capture representative noise data at baseband frequencies...