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The ever increasing global space activity is characterised by emerging space systems, operation and applications challenges. Hence, reliable RF and microwave receivers for in-orbit highly adaptive small satellites are needed to support reconfigurable multimedia/broadband applications in real-time with optimal performance. Though other parameters of the small satellite communication system may be critical,...
Recently, GaN-based low-noise amplifiers (LNAs) were shown to provide high ruggedness together with low noise figure. Since no limiter is required to protect the input, these LNAs allow for simplified receiver architectures. This paper presents an in-depth analysis of the recovery time of a highly rugged LNA. Recovery time is measured in the time domain, and an analytical approximation is developed...
We report four low noise amplifiers for a 94 GHz cloud profiling radar. The LNAs are designed using coplanar waveguides and they were manufactured with a 100-nm metamorphic high electron mobility transistor technology. The chip sizes are 2.00 times 1.00 mm2 and 2.25 times 1.00 mm2. The gate width of the transistor is 4times15 mum. The scattering parameters and the noise figures of the amplifiers were...
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