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Hiroaki HOSHINO Ryoichi TACHIBANA Toshiya MITOMO Naoko ONO Yoshiaki YOSHIHARA Ryuichi FUJIMOTO
A 60-GHz phase-locked loop (PLL) with an inductor-less prescaler is fabricated in a 90-nm CMOS process. The inductor-less prescaler has a smaller chip area than previously reported ones. The PLL operates from 61 to 63 GHz and consumes 78 mW from a 1.2 V supply. The phase noise at 100 kHz and 1 MHz offset from carrier are -72 and -80 dBc/Hz, respectively. The prescaler occupies 8040 µm2. The active area of the PLL is 0.31 mm2.