WIDEBAND I/Q DEMODULATORS: MEASUREMENT TECHNIQUE AND MATCHING CHARACTERISTICS

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Authors
  1. Lee, J.P.Y.
Corporate Authors
Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
A simple I/Q demodulator which can be used to measure the amplitude, phase and instantaneous frequency of radar signals over a large bandwidth is investigated for electronic warfare applications. Imbalance errors and DC offsets are minimized by teh techniques of component matching and calibration. A DFT technique is used to characterize the imbalance and DC offsets and improved matching characteristics on practical wideband demodulators are also given.
Keywords
In-phase/quadrature (I/Q) demodulator
Report Number
DREO-1242 —
Date of publication
01 Nov 1994
Number of Pages
34
DSTKIM No
95-02728
CANDIS No
150239
Format(s):
Document Image stored on Optical Disk;Hardcopy

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