Title :
Even harmonic double-balanced active mixer for use in direct conversion receivers
Author :
Goldfarb, Marc ; Balboni, Ed ; Cavey, John
Author_Institution :
Analog Devices, Wilmington, MA, USA
Abstract :
An active double-balanced even harmonic mixer implemented in a 0.35-μm SiGe BiCMOS process is described. The effect of local oscillator wave shape and duty cycle on conversion gain are examined. Measured data for an even harmonic mixer is compared to a conventional Gilbert cell mixer and applications to the front-end of a direct conversion receiver are described.
Keywords :
BiCMOS analogue integrated circuits; Ge-Si alloys; UHF integrated circuits; UHF mixers; integrated circuit noise; radio receivers; 0.35 micron; 1.05 GHz; Gilbert cell mixer; SiGe; SiGe BiCMOS process; active double-balanced even harmonic mixer; conversion gain; direct conversion receivers; duty cycle; even harmonic double-balanced active mixer; front-end; local oscillator wave shape; subharmonic mixer; subharmonically pumped mixer; BiCMOS integrated circuits; Degradation; Frequency conversion; Germanium silicon alloys; Local oscillators; RF signals; Radio frequency; Shape; Silicon germanium; Transconductors;
Journal_Title :
Solid-State Circuits, IEEE Journal of
DOI :
10.1109/JSSC.2003.817602
