Measurement of distortion in an amplifier

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves

Reexamination Certificate

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Reexamination Certificate

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11480724

ABSTRACT:
Parametric measurement of first- and second-generation telecommunications equipment has been relatively straightforward. The evolution to more complex transmission schemes such as those proposed for third-generation (3G) telecommunications devices can employ the subject methods and apparatus and apply AM-PM test procedures to a multicarrier amplifier RF environment to properly characterize the parametric performance of these transmission systems, particularly those operating in a multicarrier environment.

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patent: 2006/0039498 (2006-02-01), de Figueiredo et al.
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Eckert, H., “Check Nonlinear Distortion with a Vector Signal Analyzer: Versatile vector signal analyzers can be used to study distortion on burst signals from base stations even while radio network is still operational,” Microwaves and RF, Jan. 2004, downloaded Sep. 6, 2006, 4 pages.
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Zilliox, P., “Lessons Learned Designing Linear High Power Ka-Band Uplinks for Broadband Satellite Gateway Earth Stations,” Andrew: One Company, A World of Solutions, 8 pages.

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