In this letter, the power range to be covered with maximized efficiency by a two-way outphasing amplifier (PA) is significantly extended, thanks proposed architecture injection of an external signal. Using reactively terminated quadrature hybrid coupler (QHC) as nonisolating combiner, Chireix topology transformed into slight variation in load-modulated balanced (LMBA) when auxiliary branch acti...

Wireless broadband digital communication systems are facing more and more critical power efficiency problems. Crest Factor (PAPR) is reported to be in 10-12dB range for WiMAX 802.16e systems implementing OFDM IFFT-1024 and 64-QAM modulation. In this work, outphasing (LINC) and Polar transmitter architectures are investigated and compared with Direct Conversion architecture. Complete system solu...