Title :
An X-band broad-band lumped-element quadrature hybrid implemented in SiGe technology
Author :
Liu, Saier ; Lan, Jin ; Sui, Wenquan
Author_Institution :
Electron. Dept., Zhejiang Univ., Hangzhou, China
Abstract :
A two-section inductively-coupled lumped-element quadrature hybrid operated at X-band is presented. A new set of synthesizing equations are also derived to obtain good magnitude imbalance and phase difference between the output ports. The simulated magnitude imbalance and phase difference are 1.4dB and 90°± 1.16° over the frequency band 8-12GHz, respectively. Results show good agreement with the theoretical predictions. The proposed hybrid can apply to broad-band applications.
Keywords :
Ge-Si alloys; hybrid integrated circuits; lumped parameter networks; microwave integrated circuits; multiport networks; SiGe; X-band broadband lumped element; frequency 8 GHz to 12 GHz; inductively coupled lumped element quadrature hybrid; magnitude imbalance; phase difference; Couplers; Integrated circuit modeling; Layout; Mathematical model; Microwave circuits; Microwave integrated circuits;
Conference_Titel :
Communications, Circuits and Systems (ICCCAS), 2010 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-8224-5
DOI :
10.1109/ICCCAS.2010.5581901
