December 2010
Intermediate to advanced
424 pages
11h
English
APPENDIX H
Single-Tone Intermodulation Distortion Suppression for Double-Balanced Mixers
An expression is given in [1] for the suppression for single-tone intermodulation distortion in a double-balanced mixer. This is repeated below as well as coded in the program IMSUP. The intermodulation suppression in dBc (dB below the carrier) is Snm for a set of frequencies nfp ± mf1:
(H.1)
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The difference in dB between the RF signal and LO power is ΔP.
(H.3)
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The value for Vf in Eq. (H.2) is the ratio of the forward saturation diode voltage, Vsat and the peak LO voltage, VL. Thus,
(H.4)
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