Method and apparatus providing improved intermodulation distorti

Details Method and apparatus providing improved intermodulation distorti Method and apparatus providing improved intermodulation distorti

1998-09-25

2000-09-26

Hunter, Daniel S.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455333, 327359, H04B 126

Patent

active

061252727

ABSTRACT:
Second order intermodulation distortion (IM2) occurs when two interfacing signals mix with each other through a second order nonlinearity to produce an intermodulation product at the sum and difference frequencies of the two interferers. To reduce the amount of intermodulation distortion, dynamic matching is employed. In practice, dynamic matching operates to transform coefficients of IM2 distortion from constant values into functions of time where they may be handled by known rejection techniques.

REFERENCES:
patent: 3617913 (1971-11-01), Schmidhauser
patent: 4561067 (1985-12-01), McKeown
patent: 4622521 (1986-11-01), Redfern
patent: 4695972 (1987-09-01), McKeown
patent: 4931745 (1990-06-01), Goff et al.
patent: 4933642 (1990-06-01), Lee
patent: 4947135 (1990-08-01), Mijuskovic
patent: 4994805 (1991-02-01), Dedie et al.
patent: 5148167 (1992-09-01), Ribner
patent: 5222255 (1993-06-01), Kuo
patent: 5307515 (1994-04-01), Kuo
patent: 5307517 (1994-04-01), Rich
patent: 5486788 (1996-01-01), Schlager et al.
patent: 5715532 (1998-02-01), Sagawa
patent: 5732333 (1998-03-01), Cox
patent: 5749051 (1998-05-01), Dent
patent: 5854811 (1998-12-01), Sasaki
patent: 5933771 (1999-08-01), Tiller
Yamaji T., Tanimoto H., Kokatsu H., "SP 23.3: An I/Q Active Balanced Harmonic Mixer with IM2/Cancelers and 45.degree. Phase Shifter" IEEE International Solid-State Circuits Conference, Digest of Technical Papers.

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