Linearity and Efficiency Issues in Rf Power Amplifiers for Future Broadband Wireless Access Systems
نویسندگان
چکیده
Linearity and power efficiency in transmit front ends are conflicting requirements demanding innovative solutions for present and future wireless mobile systems. The demand is greater in energy constrained mobile units, especially as signal bandwidths increase and other unit parts require a greater share of the available energy. This paper briefly reviews modern linearising techniques for the high power transmit amplifiers and reports on efforts to evolve system and behavioral level performance measures and quantifying techniques which will aid processes such as the design, specification and evaluation of linearisers and their overall contribution to transmit channel performance.
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