Title :
Design of a low power 5-GHz frequency synthesizer for WSN applications
Author :
Zhiqun Li ; Qinqing Cao ; Xiaodong Qi ; Shuangshuang Zheng
Author_Institution :
Inst. of RF- & OE- ICs, Southeast Univ., Nanjing, China
Abstract :
A fully integrated 5-GHz PLL frequency synthesizer for WSN applications has been designed and implemented in 0.18μm CMOS technology. With automatic current calibration technique (ACC), the VCO could maintain a good performance under a small current consumption of about 0.3mA. Phase switching technique is used in the frequency divider to reduce power consumption. Using a 1.8V supply voltage, the measured power consumption is 12mW and the phase noise is -111.13dBc/Hz at 1MHz offset.
Keywords :
CMOS integrated circuits; frequency dividers; frequency synthesizers; microwave integrated circuits; power consumption; voltage-controlled oscillators; wireless sensor networks; CMOS technology; VCO; WSN; automatic current calibration; frequency 1 MHz; frequency 5 GHz; frequency divider; low power frequency synthesizer; phase switching; power 12 mW; power consumption; size 0.18 mum; voltage 1.8 V; wireless sensor networks; Frequency control; Frequency conversion; Frequency synthesizers; Phase noise; Power demand; Voltage-controlled oscillators; Wireless sensor networks; ACC; WSN; frequency synthesizer; low power; phase switching;
Conference_Titel :
Radio-Frequency Integration Technology (RFIT), 2012 IEEE International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-4673-2303-1
DOI :
10.1109/RFIT.2012.6401669
