| Summary: | 碩士 === 國立高雄應用科技大學 === 電機工程系 === 98 === In this thesis, a fully integrated WiMAX injection locked frequency divider (ILFD) has been designed and fabricated using standard 0.18-μm RFCMOS technology. The ILFD is for IEEE802.16-2004 application. Firstly, this thesis introduces the theoretical and architecture of ILFD. Secondly, the major goal of ILFD design is low power consumption. Therefore we focus on the low supply voltage as a starting point to propose and benchmark several kinds of circuitries to achieve the lowest supply voltage technology on LC-tank ILFD circuits.
The divider chip is designed, by using direct injection locking structure and division ratio of 2 in this thesis. The Agilent Advanced Design System (ADS) RF simulator is adopted to prevail the ILFD integrated circuit design. Design of ILFD, and the importance of optimizing the circuit parameters, and meet the minimum supply voltage and low power consumption. The ILFD is implemented by TSMC 0.18μm RFCMOS manufacturing process technology applied by National Chip Implementation Center (CIC).
The simulation results show that at the low supply voltage of 0.55V, the free-running frequency is from 4.4GHz～5.1GHz. At the incident power of 0dBm, the total locking range is from the incident frequency 8.7GHz～10.7GHz. The power consumption of the ILFD core is 1.37mW, achieved low-voltage and low-power divider design goals, effectively reduce the frequency synthesizer power consumption.
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