A CMOS Outphasing Transmitter Using Two Wideband Phase Modulators
نویسندگان
چکیده
منابع مشابه
OUTPHASING TRANSMITTER An Outphasing Transmitter Using Class - E PAs and Asym - metric Combining : Part
H igh efficiency linear amplification is of great interest in modern communication systems as it increases talk time, decreases power consumption , decreases heat dissipation, and improves reliability. The efficiency of linear power amplifiers (PAs) is highest at the peak output power (PEP) and decreases significantly for low amplitudes, as shown in Figure 1. Signals with time-varying amplitude...
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Second Harmonic Class-E PA Design The selected active device for the transmission-line class-E2 PA is the SD57030 transistor provided by STMicroelectronics. It has a maximum drain voltage of 65 V. In an ideal class-E PA in the optimum operating mode with 50% duty cycle and a slope of zero [5], the peak drain voltage is vDmax =3.56 VDD. Since the peak varies with load impedance, a design for vDm...
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ژورنال
عنوان ژورنال: JSTS:Journal of Semiconductor Technology and Science
سال: 2011
ISSN: 1598-1657
DOI: 10.5573/jsts.2011.11.4.247