상세정보
학술지
A 28.5-3-GHz Fast Settling Multichannel PLL Synthesizer for 60-GHz WPAN Radio
- 발행일
- 200805
- 출처
- IEEE Transactions on Microwave Theory and Techniques, v.56 no.5, pp.1234-1246
- ISSN
- 0018-9480
- 출판사
- IEEE
- 협약과제
- 07MB1100, 60GHz Pico cell 통신용 SoP, 유현규
- 초록
- 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 제안 키워드
- 15 GHz, 30 GHz, 60 GHz, BiCMOS process, Current-steering, Differential current, Fast Settling, Frequency source, Frequency synthesizer, PLL synthesizer, Phase locked loop(PLL)