Describe operating principle of dish antenna. Draw its constructional details and radiation

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Operating principle: Dish antenna uses simple reflection principle, just as a mirror can reflect light and a curved mirror can reflect and focus light at a single point, the dish reflects and focuses the radio waves. This is the same principle and shape that is used as reflector in a flashlight or headlight behind the bulb. Dish antennas are used for systems that transmit and receive as well as receive only.

Dish antenna 


Radiation Pattern: 



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