Mohammadreza Keimasi, Sanka Ganesan, and Michael Pecht,
University of Maryland
College Park, MD 20742
Outdoor telecommunications equipment can be exposed to ambient temperatures as low as -55oC. However, microwave devices used in telecommunications infrastructure equipment are generally not rated to such low temperature. This paper assesses scattering parameters (S-parameters), the output power at 1 dB gain compression, and DC characteristics of a silicon bipolar monolithic microwave integrated circuit (MMIC) amplifier at low temperatures.
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