Low-cost high-performance W-band LNA MMICs for millimeter-wave imaging
The main limitation to the sensitivity of a radiometer or imager is its equivalent noise temperatures, T_e. Placing a low noise amplifier (LNA) at a radiometer's front end can dramatically reduce T_e. LNA performance has steadily improved over recent years, and here we report on a W-band LNA with the lowest T_e measured at room temperature. Furthermore, we present statistical RF data showing high yield and consistency for future high volume production that is needed for commercial radiometric imaging array applications such as security screening, aircraft landing, and other systems.
Additional Information© 2000 Society of Photo-optical Instrumentation Engineers (SPIE). This work was supported by Trex Enterprises, San Diego, California through contract with the U. S. Army Research Laboratory (DAAL01-94-C-0100). The authors wish to thank Joe Galliano and Trex Enterprises for their kind permission to share this technical information.
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