An antenna has a gain of 10 dB and is used to transmit a signal at a frequency of 1 GHz. What is the power density of the signal at a distance of 100 m from the antenna?
Problem 2: A microwave oven uses a frequency of 2.45 GHz to heat food. What is the wavelength of this radiation? An antenna has a gain of 10 dB
S = (P_t * G) / (4 * π * r^2)
where S is the power density, P_t is the transmitted power, G is the antenna gain, and r is the distance from the antenna. What is the wavelength of this radiation
The power density of the signal can be calculated using the formula: P_t is the transmitted power
Problem 1: What is the wavelength of a radio wave with a frequency of 100 MHz?