Calculate the front to back ratio of an antenna which radiates 3 kW in the most desired direction and 0.5 kW in the opposite direction
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Calculate the front to back ratio of an antenna which radiates 3 kW in the most desired direction and 0.5 kW in the opposite direction .
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- The total power delivered to the radiator of an isotropic antenna is 200,000 W. Determine the power density at a distance of 100 m.A transmitting antenna with an effective height of 10 m has 50 A current at the base. If the frequency of transmission is 600 MHz, then find out the transmitted power.A transmitter supplied by 100W power is used with an antenna having a gain of 5dBi. *Calculate the EIRP in dBm*Calculate the power density (µW/m^2) at distance of 10km.
- Find power density in W/m2 at a distance of 25 km from an antenna that is radiating 5 kW with a gain of 36 dB.An antenna transmits a power of 2W from an antenna of 20db , towards a receiver located 40 km from the receiver , calculate the power received by an antenna of effective antenna 10 m^2 if the operating frequency is 11 KHzFor a transmitting horn antenna, find out the electric field strength 60 km away from the transmitting station of 35 kW power.
- A parabolic reflector antenna has a diameter of 2.7 m. The antenna operates at 700 MHz. Calculate the directivity of the antenna?In a communication system an antenna is connected through a 50 Q transmission line. The antenna's input impedance is 60 + j 70 Q, and radiation efficiency is 90 %. If the 50 transmitter can deliver 20 W when connected to a 50 0 load, calculate the power delivered to the antenna and power radiated by the antenna. Also, calculate the power density at a distance of 2 km from the transmitting antenna if the antenna's gain is 20 dB.The effective span of an antenna is 2.147 m2 at an operating frequency of 100MHz. The antenna has no conduction or dielectric loss. The input impedance of the antenna is 75Ω and it is connected to a 50Ω transmission line. Find the directionality of the antenna system. (The term "system" here refers to the effects of binding to the transmission line.) It will be assumed that there is no polarization loss.
- An antenna whose radiation resistance is 100 Ω operates at a frequency of 2.4 GHz and with a current of 1 A. Calculate the radiated power.A certain antenna has a gain of 7 dB with respect to an isotropic radiator. What is its effective area (in m^2) if it operates at 200 MHz? Round off your answer into two decimal places.Calculate the electric field strength at 100 km away from an antenna which is transmitting 10 kW of power.