Title :
A rigorous process in designing quadrature hybrid
Author :
Fu Qi ; Chen Pei-zhe ; Huang Zhi-yuan
Author_Institution :
Sch. of Phys. Electron., Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A typical 3GHz narrow-band quadrature hybrid coupler has been proposed and measured through rigorous steps. S matrix guides the design in distributed parameter model, which further lead to a microstrip model in Advanced Design System with consideration of loss. Both HFSS and CST are referred in to further optimize the detailed parameters. The measurement shows a well matching with simulation, while errors have been figured out and confirmed. A modified ground plane has been designed with a SRR structure, to fix the frequency shift in S31. Such a consideration may transit centre frequency of S31 into middle, which less loss is referred in.
Keywords :
S-matrix theory; distributed parameter networks; microstrip couplers; CST; HFSS; S matrix; advanced design system; distributed parameter model; frequency 3 GHz; microstrip model; modified ground plane; narrow-band quadrature hybrid coupler; quadrature hybrid design; Couplers; Dual band; Frequency measurement; Microstrip; Phase measurement; Ports (Computers); Power dividers;
Conference_Titel :
Communication Problem-Solving (ICCP), 2014 IEEE International Conference on
Print_ISBN :
978-1-4799-4246-6
DOI :
10.1109/ICCPS.2014.7062287
