A 4-to-18GHz Active Poly Phase Filter Quadrature Clock Generator with Phase Error Correction in 5nm CMOS. - Wei-Chih Chen; Chin-Hua Wen; Chin-Ming Fu; Tsung-Hsien Tsai; Yu-Chi Chen; Wen-Hung Huang; Chien-Chun Tsai; Alvin Leng Sun Loke; C. H. Kenny (VLSI Circuits, 2020)