Question
Asked Dec 15, 2019
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How large is the dish diameter that will be required for the dish antenna to produce 60 dB gain at 300 MHz?

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Expert Answer

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Step 1

The diameter of the dish antenna is directly related to the directive gain of the antenna. The diameter can be expressed as

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► (1) D =, -2 m –-- > (1) V 6 Directive gain of the antenna G 2 = Wavelength of radiation

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Step 2

The wavelength of radiation can be evaluated from the frequency of radiation (f) using the following relation

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300 m -->(2) f = Frequency of radiation in MHz

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Step 3

In this case, the frequency of radiation is given as 300 MHz. So, using equation (2), the value of the corresponding wavelength o...

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300 · (3) -=1m --> (3) 2= 300

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Electrical Engineering

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