Noise figure can be defined for any microwave network irrespective of any other constraints.

Related MCQs

• The equivalent noise temperature of a network given the noise figure of the network or system is:
• Expression for noise of a two port network considering the noise due to transmission line and other lossy components is:
•                      is defined as the ratio of input signal to noise ratio to the output signal to noise ratio.
• Microwave tubes are power sources themselves at higher frequencies and can be used independently without any other devices.
• Expression for over all noise figure of a mismatched amplifier is:
• The basic equation of radiation that is applied to any antenna irrespective of the type of the antenna is:
• Noise equivalent temperature of a 2 stage cascade network is given by:
•                        is defined as the ratio of desired signal power to undesired noise power.
• 1 MICROWAVE PASSIVE COMPONENTS: DIRECTIONAL COUPLER, POWER DIVIDER, MAGIC TEE ATTENUATOR, RESONATOR
• Magnetrons are microwave devices that offer very high efficiencies of about 80%.