Analysis of the linear amplifier/analog-digital converter interface in a digital microwave receiver

An analysis of the relationship between a linear amplifier chain and an analog-to-digital converter (ADC) in a digital microwave receiver, with respect to sensitivity and dynamic range issues, is presented. The effects of gain, third-order intermodulation products and ADC characteristics on the perf...

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Bibliographic Details
Published in:IEEE transactions on aerospace and electronic systems 1995-01, Vol.31 (1), p.248-256
Main Authors: Sharpin, D.L., Tsui, J.B.Y.
Format: Article
Language:English
Subjects:
Analog-digital conversion
Applied sciences
Bandwidth
Circuit properties
Dynamic range
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Microwave amplifiers
Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits
Noise figure
Noise generators
Noise level
Noise reduction
Power amplifiers
Power generation
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Summary:An analysis of the relationship between a linear amplifier chain and an analog-to-digital converter (ADC) in a digital microwave receiver, with respect to sensitivity and dynamic range issues, is presented. The effects of gain, third-order intermodulation products and ADC characteristics on the performance of the receiver are illustrated and design criteria for the linear amplifier chain (given a specified ADC) are developed. A computer program is included which calculates theoretical receiver performance based on gain and third-order intermodulation product selections. Experimental results are also presented and compared with theoretical values.< >
ISSN:0018-9251
1557-9603
DOI:10.1109/7.366307