标题: | 24-GHz电流式注入锁定除频器与压控震荡器设计 A 24-GHz Current-Mode Injection-Locked Frequency Divider with Voltage Control Oscillator |
作者: | 黄必超 Bi-Chou Huang 吴重雨 Chung-Yu Wu 电机学院IC设计产业专班 |
关键字: | 电流式;锁定除频器;Current mode;ILFD |
公开日期: | 2006 |
摘要: | 此篇论文利用了新的想法和电路来实现一个注入式锁定除频器,使它达到宽的锁定范围和低功率的效能,且在台湾积体电路(0.13um RF CMOS)制造完成。设计一个输出功率为 -4.16dBm的LC压控震荡器(LC-Tank VCO)来驱动除频器,在0.8V的供应电源下消耗直流电流为 4.25mA且工作频率在24GHz。 为了证实这个概念,设计一个压控震荡器来驱动第一级电流式锁定式(current-mode injection-locked)除频器和第二级电流式逻辑(current-mode flip-flop based)除频器且工作在24GHz、0.8V低的供应电压下,消耗8mW的功率。这个锁定式除频器 (injection-locked frequency divider)在1KHz相位杂讯为-106dBc/Hz,功率消耗0.8mW,可以达到2GHz的锁定频宽。 在测量结果,提出的模型电流注入式锁定除频器,和获得锁定频带的分析被成功的实现。模型把射入锁定和回授系统描述成一体。它提供有用的指标去改善锁定范围。也说明了在功能上,理论分析、模拟和测量结果是一致的。 A prototype of current-mode injection-locked frequency divider (ILFD) embodying the design principles and the new circuit configurations which achieve lower phase noise, wider locking range, and lower power dissipation is designed, layout and fabricated in TSMC (Taiwan Semiconductor Manufacturing Company Ltd.) 0.13 um CMOS RF technology. The voltage controlled oscillator (VCO) using LC-tank architecture is designed to operate at a fundamental frequency of 24GHz and it is estimated to deliver -4.16dBm of output power at 24 GHz in order to drive the frequency divider while consuming about 4.25 mA of DC current from a 0.8-V supply. To demonstrate the proposed concept, a fully integrated CMOS current-mode ILFD and current-mode flip-flop based frequency divider with a voltage controlled oscillator (VCO) to operate on 24-GHz carrier with low phase noise was designed while dissipating 8-mW from a super low voltage 0.8-V supply. This current-mode ILFD achieves 2-GHz wide locking range and -106dBc/Hz phase noise at 1-kHz offset while dissipating 0.6-mW. In the measurement results, the proposed model of current-mode ILFD, and derive analytical expressions of relating locking band are successful implement. The model described unifies the treatment of injection-locked and regenerative systems. It provides useful guidelines to improve the locking range. Illustrative measurement results are close to correspondence between theory, simulation, and measurement. |
URI: | http://140.113.39.130/cdrfb3/record/nctu/#GT009395508 http://hdl.handle.net/11536/80345 |
显示于类别: | Thesis |