A Study of a Broadband Balanced-Bridge Switching-State MOSFAT Mixer.
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
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A theory for a mixer using four MOSFETs in a broadband balanced-bridge configuration was developed in terms of both ideal models and approximate representations for departures from the ideal case. An interfering signal is assumed to be present in order to analyze intermodulation and cross-modulation distortions. The mathematics of a MOSFET mixer are developed and compared with the conversion properties and intermodulation limitations of the simple nonlinear-resistance mixer. Measurements are made in the 10-200 MHz range and close agreement with the theory is found for conversion loss. Author
- Electrical and Electronic Equipment