The far - field distance is the distance from the transmitting antenna to the beginning of the Fraunhofer region , or far field .
where D is the largest physical linear dimension of the antenna and d is the far - field distance .
The far - field distance is the distance from the transmitting antenna to the beginning of the Fraunhofer region , or far field .
where D is the largest physical linear dimension of the antenna and d is the far - field distance .