IEEE MTT-S International Microwave Symposium Digest, 2005. 2005
DOI: 10.1109/mwsym.2005.1516688
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Wideband envelope elimination and restoration power amplifier with high efficiency wideband envelope amplifier for WLAN 802.11g applications

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Cited by 70 publications
(12 citation statements)
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“…4 shows the amplitude PDF for a HSUPA signal and the corresponding optimum efficiency curves for standard LINC, ML-LINC, and AMO using 4 different supply levels. 1 The figure shows that ML-LINC increases the efficiency over a much wider power range than the standard LINC system, and AMO increases this range even further by effectively doubling the number of levels. Fig.…”
Section: B Multi-standard Efficiency Optimizationmentioning
confidence: 95%
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“…4 shows the amplitude PDF for a HSUPA signal and the corresponding optimum efficiency curves for standard LINC, ML-LINC, and AMO using 4 different supply levels. 1 The figure shows that ML-LINC increases the efficiency over a much wider power range than the standard LINC system, and AMO increases this range even further by effectively doubling the number of levels. Fig.…”
Section: B Multi-standard Efficiency Optimizationmentioning
confidence: 95%
“…Because power converter efficiency degrades dramatically as bandwidth increases, it is very difficult to achieve high efficiency for high data-rate communication standards. This is exacerbated by the 5-10x bandwidth expansion that occurs during the conversion from Cartesian to polar coordinates [1]. Thus this method is only practical for low-bandwidth systems.…”
Section: Conventional Approachesmentioning
confidence: 99%
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“…It demonstrates the use of non-linear component for linear amplification. In theory, it can achieve 100% efficiency and the total system efficiency is calculated by [119] ƞ 𝑡𝑡𝑜𝑜𝑡𝑡𝐷𝐷𝑡𝑡 = ƞ 𝑑𝑑𝑛𝑛𝑣𝑣𝑑𝑑𝑡𝑡𝑜𝑜𝑜𝑜𝑑𝑑 𝑃𝑃𝑃𝑃 . ƞ 𝑛𝑛𝑜𝑜𝑛𝑛−𝑡𝑡𝑖𝑖𝑛𝑛𝑑𝑑𝐷𝐷𝑟𝑟 𝑃𝑃𝑃𝑃 (4.10)…”
Section: Envelope Elimination and Restorationmentioning
confidence: 99%
“…Feipeng et al [119] compared their EER work with a class AB PA and the improvement of PAE is approximately doubled from 12.3% to 28%.…”
Section: Envelope Elimination and Restorationmentioning
confidence: 99%