A 52GHz Millimeter-Wave PLL Synthesizer for 60GHz WPAN Radio

In this paper, we present the design of 52-GHz frequency synthesizer for 60GHz WPAN application. The PLL consists of 26GHz PILL and 52GHz frequency doubler, generating two channels of output carriers with 2.08GHz step by using high-speed four-modulus divider. The proposed PLL represents phase noise of - 89dBc/Hz from 26.2GHz carrier and - 81dBc/Hz from 52.4GHz carrier, at 1MHz offset, respectively. Also, its integrated RMS phase noise from 1MHz to 100MHz is measured as 7.42 degrees Output frequency tuning range from the PLL is 50 to 53-GHz. The synthesizer including frequency doubler consumes 160mA at 2.5V supply voltage and occupies 1.2 x 1.0 mm(2) chip area.