Title :
Design of an X-band broad-band lumped-element quadrature hybrid
Author :
Ma, Fangyue ; Peng, Yangyang ; Wang, Xiaoying ; Liu, Saier ; Lan, Jin ; Sui, Wenquan
Author_Institution :
Zhejiang-California Int. Nanosystem Inst., Zhejiang Univ., Hangzhou, China
Abstract :
A method for synthesizing a two-section inductively-coupled lumped-element quadrature hybrid for broad-band applications is first proposed. Based on this analysis, a two-section inductively-coupled lumped-element quadrature hybrid operated at X-band is presented. The measured magnitude imbalance and phase difference are 2.4dB and 90°± 4° over the frequency band of 8-12GHz, respectively. Results show good agreement with the theoretical predictions.
Keywords :
directional couplers; microwave circuits; X-band broadband lumped-element quadrature hybrid directional coupler design; frequency 8 GHz to 12 GHz; two-section inductively-coupled lumped-element quadrature hybrid design; Broadband communication; Couplers; MMICs; Microwave circuits; Microwave communication; Lumped-element circuit; SiGe; broad-band quadrature hybrid;
Conference_Titel :
Integrated Circuits (ISIC), 2011 13th International Symposium on
Conference_Location :
Singapore
Print_ISBN :
978-1-61284-863-1
DOI :
10.1109/ISICir.2011.6131886
