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- W4200364982 abstract "The most commonly used noise measurement setups are designed for packaged amplifiers and on-wafer systems. In a system for satellite television, a low-noise signal converter is used which is located in the focus of a parabolic antenna. It is called a low noise block (LNB). The estimation of the signal power at the receiving horn gives an indication of the required noise figure of the LNB. This chapter considers the transmission distance from the satellite at an altitude of 36,000 km to the waveguide input of the LNB. One possibility is to remove the horn and attach a waveguide flange. A waveguide-coaxial adapter can then be connected to this flange, to which in turn the noise generator is connected. A passive network can be used as a noise standard because its noise parameters are derived from the s-parameters using correlation matrices." @default.
- W4200364982 created "2021-12-31" @default.
- W4200364982 date "2021-11-26" @default.
- W4200364982 modified "2023-09-26" @default.
- W4200364982 title "Examples of Measurement Problems" @default.
- W4200364982 doi "https://doi.org/10.1002/9781119859390.ch17" @default.
- W4200364982 hasPublicationYear "2021" @default.
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