Enter the noise power and the noise bandwidth into the Calculator. The calculator will evaluate the Antenna Noise Temperature. 

Antenna Noise Temperature Formula

T = Pn / (1.380649×10^{-23}*B)

Variables:

  • T is the Antenna Noise Temperature ()
  • Pn is the noise power
  • B is the noise bandwidth

To calculate Antenna Noise Temperature, divide the noise power by the product of the noise bandwidth and Planck’s constant.

How to Calculate Antenna Noise Temperature?

The following steps outline how to calculate the Antenna Noise Temperature.


  1. First, determine the noise power. 
  2. Next, determine the noise bandwidth. 
  3. Next, gather the formula from above = T = Pn / (1.380649×10^-23*B).
  4. Finally, calculate the Antenna Noise Temperature.
  5. After inserting the variables and calculating the result, check your answer with the calculator above.

Example Problem : 

Use the following variables as an example problem to test your knowledge.

noise power = 1.5

noise bandwidth = 3

Frequently Asked Questions

What is Antenna Noise Temperature?

Antenna Noise Temperature is a measure that quantifies the noise power per unit bandwidth generated by an antenna. It’s a critical parameter in understanding the performance of antennas in communication systems.

Why is the calculation of Antenna Noise Temperature important?

Calculating the Antenna Noise Temperature is essential for designing efficient communication systems. It helps in assessing the noise levels that an antenna introduces into a system, which is crucial for maintaining high-quality signal transmission and reception.

What is noise bandwidth in the context of Antenna Noise Temperature?

Noise bandwidth refers to the range of frequencies within which the noise power is measured. It’s an important factor in calculating the Antenna Noise Temperature as it directly affects the total noise power captured by the antenna.

How does the environment affect Antenna Noise Temperature?

The environment plays a significant role in influencing the Antenna Noise Temperature. Factors such as atmospheric conditions, cosmic background radiation, and man-made noise sources can all contribute to the overall noise temperature of an antenna system.