Ka-Band SiGe Receiver Front-End MMIC for Transponder Applications
TBMG-8621
10/01/2010
- Content
A fully integrated, front-end Ka-band monolithic microwave integrated circuit (MMIC) was developed that houses an LNA (low noise amplifier) stage, a down-conversion stage, and output buffer amplifiers. The MMIC design employs a two-step quadrature down-conversion architecture, illustrated in the figure, which results in improved quality of the down-converted IF quadrature signals. This is due to the improved sensitivity of this architecture to amplitude and phase mismatches in the quadrature down-conversion process. Current sharing results in reduced power consumption, while 3D-coupled inductors reduce the chip area. Improved noise figure is expected over previous SiGe-based, front-end designs.
- Citation
- "Ka-Band SiGe Receiver Front-End MMIC for Transponder Applications," Mobility Engineering, October 1, 2010.