Noise

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Equivalent Noise Bandwidth 1 comment

This entry was posted in RFIC Design and tagged Noise on January 31, 2014 by Radio Geek

Equivalent noise bandwidth(ENBW) is defined as the bandwidth of a brickwall filter which produce same integrated noise power as that of an actual filter. This is also refered to as noise bandwidth or effective noise bandwidth. Given a filter with transfer function , the equivalent noise bandwidth () is defined […]

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Noise Figure of an Attenuator

This entry was posted in RFIC Design and tagged Noise Noise Figure on January 9, 2014 by Radio Geek

Consider an attenuator as shown in Figure 1, whose conversion loss is . Assume that input and output ports are perfectly matched and the attenuator is in thermal equilibrium with its surroundings. Noise power at the input of attenuator due to a perfectly matched source at temperature() is given by […]

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