Quadrature Hybrid with Coupled CPW and Its Application in Quadrature-RF Single Quadrature Downconverter

• Main Authors: Peng, Yong-Hao, 彭永豪
• Other Authors: Meng, Chin-Chun
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/73837182802880295240

碩士 === 國立交通大學 === 電信工程研究所 === 101 === In this thesis, we focus on researching of microwave passive components which include coupled coplanar waveguide directional coupler and dual Marchand balun using coupled coplanar waveguide. This thesis is divided into two parts. In the first part, we simulated coupled coplanar waveguide directional coupler in TSMC CMOS 0.18 μm multi-layer structure, then we implemented dual Marchand balun which is combined of coupled coplanar waveguide directional couplers in TSMC CMOS 0.18 μm process. The dual Marchand balun has broad band property and good balance of amplitude and phase. Finally, we implemented quadrature down converter in TSMC SiGe 0.18 μm process. We implemented quadrature-RF single quadrature downconverter which the both of RF and LO input are single-ended by using coupled coplanar waveguide directional coupler to perform quadrature RF signals and dual Marchand balun to divide LO signal. In the second part, we implemented trifiar transformer of three different turn ratio in TSMC SiGe 0.18 μm process.