How is the voltage produced in a receiving antenna related to the received field strength?

How is the voltage produced in a receiving antenna related to the received field strength?

• A. It is inversely proportional
• B. It is always proportional
• C. It varies with antenna size
• D. It depends on distance from transmitter

Answer: (B)

The voltage produced in a receiving antenna is directly proportional to the received field strength. This relationship is grounded in the principles of electromagnetism and antenna theory. When an electromagnetic wave encounters the antenna, it induces a voltage across the antenna elements. The strength of this induced voltage is contingent upon the strength of the electric field component of the incoming wave. As the field strength increases, more electromagnetic energy is absorbed by the antenna, resulting in a correspondingly higher voltage. This means that if the field strength doubles, the induced voltage will also double, illustrating the proportional relationship. Although antenna size and distance from the transmitter can affect overall system performance and receive capabilities, those factors do not change the fundamental relationship between voltage and field strength, which remains consistently proportional under ideal conditions.

The voltage produced in a receiving antenna is directly proportional to the received field strength. This relationship is grounded in the principles of electromagnetism and antenna theory. When an electromagnetic wave encounters the antenna, it induces a voltage across the antenna elements. The strength of this induced voltage is contingent upon the strength of the electric field component of the incoming wave.

As the field strength increases, more electromagnetic energy is absorbed by the antenna, resulting in a correspondingly higher voltage. This means that if the field strength doubles, the induced voltage will also double, illustrating the proportional relationship.

Although antenna size and distance from the transmitter can affect overall system performance and receive capabilities, those factors do not change the fundamental relationship between voltage and field strength, which remains consistently proportional under ideal conditions.