A monolithic 5-GHz down-converter consisting of a low noise amplifier (LNA) and a double-balanced mixer was designed using a 46-GHz-f{sub}T silicon bipolar process. The down-converter exhibits a SSB noise figure as low as 3.2 dB, a 24-dB power gain, and an input compression point of -23 dBm. It was assembled in a 4×4 mm{sup}2 low-cost QFN 16-lead plastic package and draws only 18 mA from a 3-V power supply.
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