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Journal Article A 28.5-3-GHz Fast Settling Multichannel PLL Synthesizer for 60-GHz WPAN Radio
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Authors
Lee Ja Yol, Lee Sang-Heung, Hae Cheon Kim, Yu Hyun Kyu
Issue Date
200805
Source
IEEE Transactions on Microwave Theory and Techniques, v.56 no.5, pp.1234-1246
ISSN
0018-9480
Publisher
IEEE
DOI
https://dx.doi.org/10.1109/TMTT.2008.920179
Project Code
07MB1100, SoP(System on Package) for 60 GHz Pico cell Communication, Yu Hyun Kyu
Abstract
A 28.532-GHz fast settling multichannel frequency synthesizer is implemented in 0.25-μm SiGe:C BiCMOS process technology for 60-GHz wireless personal area network (WPAN) applications. The phase-locked loop (PLL) synthesizes carrier frequencies between 28.532 GHz in step of 500 MHz, and settles in approximately 327 ns. The proposed PLL can be employed as a frequency source providing eight channels of frequency hopping carriers for 60-GHz WPAN radio. To generate eight channels of carriers, an integer-N PLL with 125-MHz reference frequency is implemented, and a programmable divider with all differential current-steering circuits is designed. The programmable divider reliably provides divide ratios of 114128 at 15 GHz. To achieve eight channels of carriers at a challenging frequency of 30 GHz, a pushpush voltage-controlled oscillator is employed using a Wilkinson power combiner. The PLL consumes 115 mA at 2.5 V and achieves phase noise of -81 dBc/Hz at 1-MHz offset measured from 32-GHz pushpush carrier. © 2006 IEEE.
KSP Keywords
15 GHz, 30 GHz, 60 GHz, BiCMOS process, Current-steering, Differential current, Fast Settling, Frequency source, Frequency synthesizer, PLL synthesizer, Power combiner