Even harmonic double-balanced active mixer for use in direct conversion receivers

Even harmonic double-balanced active mixer for use in direct conversion receivers

An active double-balanced even harmonic mixer implemented in a 0.35-/spl mu/m 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 appl...

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Veröffentlicht in:IEEE journal of solid-state circuits 2003-10, Vol.38 (10), p.1762-1766
Hauptverfasser: Goldfarb, M., Balboni, E., Cavey, J.
Format: Artikel
Sprache:eng
Schlagworte:
BiCMOS integrated circuits
Conversion
Degradation
Direct conversion
Frequency conversion
Gain
Germanium silicon alloys
Harmonics
Local oscillators
Mixers
Oscillators
Radio frequency
Receivers
RF signals
Shape
Silicon germanides
Silicon germanium
Transconductors
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Beschreibung
Zusammenfassung:An active double-balanced even harmonic mixer implemented in a 0.35-/spl mu/m 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.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2003.817602