Gateway to 21st Century Communications Village. VTC 1999-Fall. IEEE VTS 50th Vehicular Technology Conference (Cat. No.99CH36324 1999
DOI: 10.1109/vetecf.1999.797296
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A novel CDMA power amplifier for high efficiency and linearity

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Cited by 6 publications
(4 citation statements)
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“…This experimental trick is valid since the gain and PAE are virtually unchanged, and, to the first order, the third-order distortions are insensitive to the linear portion of the NCN capacitor. 4 As seen in Fig. 20, the NCN improves the ACPR1 by 5-8 dB in the mid and higher power ranges.…”
Section: Effectiveness Of the Ncnmentioning
confidence: 75%
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“…This experimental trick is valid since the gain and PAE are virtually unchanged, and, to the first order, the third-order distortions are insensitive to the linear portion of the NCN capacitor. 4 As seen in Fig. 20, the NCN improves the ACPR1 by 5-8 dB in the mid and higher power ranges.…”
Section: Effectiveness Of the Ncnmentioning
confidence: 75%
“…However, CMOS amplifiers are inherently less linear than GaAs amplifiers and consequently require linearization technologies. Previous circuit-level linearization techniques typically involve "standalone" [2], [3] or "one-to-one" distortion-cancellation-like approaches [4]- [11]. In such techniques, transistor nonlinearity is explicitly identified and a complementary cancellation scheme is devised to neutralize overall distortion.…”
Section: Introductionmentioning
confidence: 99%
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“…The easiest solution is to measure the transmission characteristic of the power amplifier under the selected operating conditions and design a compensating analog circuit accordingly. In the simplest case, this compensating analog circuit is a Schottky diode [55,56] connected in series to the circuit, setting its operating point so that the nonlinear signal distortions generated by this diode compensate for the distortions generated by the power amplifier. This is an almost cost-free solution, but it can provide only limited compensation-a few dB ACLR improvement at most.…”
Section: Predistortion Linearizationmentioning
confidence: 99%