A Study on Optimal Transformer Design for VCO
| Autor: | Lai, Jian-Shiun, 賴建勳 |
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| Rok vydání: | 2011 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 99 This thesis proposed a Voltage Controlled Oscillator operate at 5.3 GHz, and to optimize the transformers used in voltage controlled oscillators, and to get a low-power and low-noise output stability under the conditions of local oscillation signal to be applied to FMCW radar sensor. We studied and analyzed several inductance calculation algorithms including Greenhouse and Jenei algorithm of physic-based. Consistent with the results of this study to find out the best performance of the transformer core resonant components. This thesis is based on TSMC CMOS 0.18 μm process to design the circuit and also applies Ansoft HFSS tool to design the transformers. Finally integrate the circuit in ADS tools. The conclusion of the thesis has realized and fitted in the FMCW radar system. According to the proposed circuit phase noise is -128.0 dBc at 1-MHz offset from a 5.3 GHz carrier and its tuning range is 400MHz from 5.1 to 5.5 GHz with power consumption of 4.1mW. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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