Two-Stage, 90-GHz, Low-Noise Amplifier
NASA’s Jet Propulsion Laboratory, Pasadena, California
Saturday, May 01 2010
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A device has been developed for coherent detection of the polarization of the cosmic microwave background (CMB). A two-stage amplifier has been designed that covers 75–110 GHz. The device uses the emerging 35-nm InP HEMT technology recently developed at Northrop Grumman Corporation primarily for use at higher frequencies. The amplifier has more than 18 dB gain and less than 35 K noise figure across the band.
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