Design & Implementation of 5-GHz-Band Wide Tuning Range VCO and Shallow Trench Isolation Varactors

• Main Authors: Po-Feng Yeh, 葉柏峰
• Other Authors: Yo-Sheng Lin
• Format: Others
• Language: zh-TW
• Published: 2006
• Online Access: http://ndltd.ncl.edu.tw/handle/85318346870477258704

碩士 === 國立暨南國際大學 === 電機工程學系 === 94 === In this thesis, study of three passive devices, and a wide tuning range voltage controlled oscillator (VCO) which is applied to the wireless transceiver. Three devices included variable inductances inductors and varactors applied to ultra-tuning range VCO and transformers for millimeter-wave applications. A variable monolithic inductor having a planar spiral inductor connected with MOSFET switches is proposed。By controlling a voltage of the MOSFET switch gate and body for inductance。.The varactors were fabricated by shallow trench isolation to make the performances of varactors better. It can increase the turning range and decrease the phase of it, and study the influence of differential shallow trench isolation wide. In chapter 4, we demonstrate that high-coupling and ultra-low-loss transformers for 60100 GHz CMOS RFIC applications can be achieved by using single-turn two-layer interlaced stacked (STIS) structure implemented in a standard CMOS technology. In chapter 5, the 5.5-GHz low power consumption and wide tuning range differential voltage-controlled oscillator (VCO) is presented. This circuit optimized for maximum tuning range was designed and fabricated using TSMC 0.18-um one-poly-six metal (1P6M) CMOS process. Keywords: MOSFET, shallow trench isolation (STI), coupling, RFIC, VCO