What is the radiation pattern of an antenna?
A radiation pattern defines the variation of the power radiated by an antenna as a function of the direction away from the antenna.
This power variation as a function of the arrival angle is observed in the antenna’s far field..
How do you calculate the radiation resistance of a dipole antenna?
A true half-wave dipole is one half of the wavelength λ in length, where λ = c/f in free space. Such a dipole has a feedpoint impedance consisting of 73 Ω resistance and +43 Ω reactance, thus presenting a slightly inductive reactance.
What is radiation efficiency of antenna?
The efficiency of the antenna in performing this conversion, known as antenna radiation efficiency, is defined as the ratio of the power dissipated into space to the net power delivered to the antenna by the transmitter circuits.
What is the radiation resistance of half wave dipole antenna?
The radiation resistance of an antenna is defined as the equivalent resistance that would dissipate the same amount of power as is radiated by the antenna. The input impedance of the half-wavelength dipole antenna is given by Zin = 73 + j42. 5 Ohms.
What are the two types of radiation pattern?
Radiation Pattern in 2D Two-dimensional pattern can be obtained from three-dimensional pattern by dividing it into horizontal and vertical planes. These resultant patterns are known as Horizontal pattern and Vertical pattern respectively.