Design of Wide Band CMOS VCO with Common Source Transformer Feedback Topology

作     者：Meng-Ting Hsu Ying-Hsiang Huang Cheng-Chuan Chung 

作者机构：Microwave Communication and Radio Frequency Integrated Circuit Lab Department and Institute of Electronic Engineering National Yunlin University of Science and Technology Douliou Chinese Taipei 

出 版 物：《Wireless Engineering and Technology》 (无线工程与技术（英文）)

年 卷 期：2013年第4卷第1期

页      面：19-27页

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 

主　　题：Voltage Controlled Oscillator (VCO) Transformer Feedback Low Phase Noise Wide Tuning Range Low Voltage 

摘      要：This paper demonstrates wide-band CMOS VCO based on the transformer feedback from traditional circuit to our proposed work. The start up condition of the traditional cross-coupled pair is expressed by the high frequency model. The wide band technique of this structure is derived with the help of the high frequency model of the transistor. Therefore, the wide band CMOS VCO based on the common source transformer feedback topology can achieves the high performance in the low voltage and low phase noise. The measurement result of the VCO exhibits the figure of merit, core power consumption and output power at supply voltage 0.8 V are –193.1 dBc/Hz, 4.4 mW and –2.3 dBm, respectively. The phase noise is –124.3 dBc/Hz at 1 MHz offset under the operation frequency 5.8 GHz. And the tuning range of the circuit can obtain 28%, this VCO is fabricated in TSMC 0.18 μm 1P6MCMOS process.