A Low-Power Single-Weight-Combiner 802.11abg SoC in 0.13 µm CMOS for Embedded Applications Utilizing An Area and Power Efficient Cartesian Phase Shifter and Mixer Circuit. - Ali Afsahi; Jacob J. Rael; Arya Behzad; Hung-Ming Chien; Michael Pan; Stephen Au; Adedayo Ojo; C. Paul Lee; Seema Butala Anand; Kevin Chien; Stephen Wu 003; Rozi Roufoogaran; et al. (IEEE J. Solid State Circuits, 2008)