A comparison of envelope elimination and restoration (EER) and envelope tracking (ET) is
discussed and a" hybrid" wideband EER power amplifier (PA) for the WLAN 802.11 g system …

A monolithic SiGe BiCMOS envelope-tracking power amplifier (PA) is demonstrated for
802.11 g OFDM applications at 2.4 GHz. The 4-mm 2 die includes a high-efficiency high …

A combined linear and delta-modulated (DeltaM) switch-mode PA supply modulator for
polar transmitters in wireless handsets is designed in a 0.25 mum CMOS process. The …

Multimode multiband (MMMB) power amplifiers have been developed in recent years for
next generation mobile handsets and tablets applications. Designers face new and greater …

A highly linear, efficient, two-stage power amplifier for high-data-rate wireless applications is
presented. The linearity is greatly improved by adding an auxiliary amplifier to the main …

Power supply noise is a serious concern in noise-sensitive radio frequency or analog
circuits. This paper presents an analysis of the influence of the synchronous rectification …

We propose a new modulation, phase-silence-shift-keying (PSSK), whose symbol error rate
(SER) performance is improved by 6 dB compared with phase-shift-keying (PSK). To prove …

Maintaining high RF efficiency in the transmitters of mobile phones is becoming more
difficult as data rates rise with increasing modulation complexity and crest factor. In …

Hybrid combinations of switching and linear regulators have been proposed for both audio
amplifiers and dynamic supply modulators for radio frequency (RF) power amplifiers (PAs) …

To effect power control of a power amplifier 2 having three amplifier stages 3, 4 and 5 used
to amplify input signals modulated in accordance with a variable envelope modula tion …