@misc {IOPORT.70728257, author = {Lee, Young Jae and Yu, Hyun-Kyu}, title = {A transformer-based low phase noise and widely tuned CMOS quadrature VCO}, howpublished = {ISCAS (2006).}, year = {2006}, doi = {10.1109/ISCAS.2006.1693509}, identifier = {70728257}, }