MCQ Practice Question

Antenna & Wave Propagation Friis Transmission

The Friis free-space transmission equation is primarily used to estimate?

AReceived power between antennas in free-space far-field conditions
BConductor skin depth
CAntenna mechanical strength
DIonospheric critical frequency only

Correct Answer: A. Received power between antennas in free-space far-field conditions

Explanation: The Friis equation relates transmitted power, antenna gains, wavelength and separation to received power under ideal free-space far-field conditions.

Reference: Standard antenna and wave propagation: friis transmission