Processing, Fabrication, and Demonstration of HTS Integrated Microwave Circuits
R&D Status rept. 25 Oct 1993-30 Jan 1994
WESTINGHOUSE SCIENCE AND TECHNOLOGY CENTER PITTSBURGH PA
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An analysis has been carried out to determine the effect of HTS preselector filters on the sensitivity and spur-free dynamic range of a microwave receiver. The study is based on the measurements presented in our quarterly report 8 on intermodulation distortion and noise figure in HTS filters. A result of the analysis is that the low noise figure of HTS filters will allow the benefits of preselection without significantly contributing to the system noise figure. In addition, the intermodulation distortion measured so far in HTS filters was found to be low enough not to affect the system spur-free dynamic range, which is generally set by the other nonlinear components in the system.
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