The Study of a Dual LC Tank Voltage-Controlled Oscillator and Injection-Locked Frequency Dividers
| Autor: | Che -Yi Lin, 林哲逸 |
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| Rok vydání: | 2007 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 95 This thesis presents one voltage controlled oscillator and two injection locked frequency dividers, which are implemented by using standard TSMC 0.18um and 0.35um CMOS process respectively. In voltage controlled oscillators, the oscillator contains two single ended VCO’s with two pMOS-core Colpitts oscillators stacked in series. The measurement shows the phase noise of -114.89 dBc/Hz at 1-MHz offset from the frequency 5.52 GHz while dissipating only 7.26 mW for the core VCO from the supply voltage of 1.6V. The tuning range of VCO is tunable from 5.15 GHz to 5.85 GHz. In injection locked frequency dividers (ILFDs), the first injection locked frequency divider is a switched-inductor dual-band ILFD. By switching on/off the inductor switch, a dual-band frequency divider can be obtained. The locking ranges of low-frequency and high-frequency band are respectively from 4.0 GHz to 5.8 GHz and from 8.48 GHz to 9.3 GHz. The second injection locked frequency divider is a complementary Hartley ILFD. The measurement shows the locking range is from 14.94~16.05 GHz when the injection input power is 0 dBm. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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