A Polar Loop Transmitter with Digital Interface including a Loop-Bandwidth Calibration System. - Yukinori Akamine; Satoshi Tanaka; Manabu Kawabe; Takao Okazaki; Yasuo Shima; Masahiko Yamamoto; Ryoichi Takano; Yasuyuki Kimura (ISSCC, 2007)

ΔΣ PLL Transmitter With a Loop-Bandwidth Calibration System. - Yukinori Akamine; Manabu Kawabe; Kazuyuki Hori; Takao Okazaki; Masumi Kasahara; Satoshi Tanaka (IEEE J. Solid State Circuits, 2008)