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In a typical mobile satellite array antenna, if three elements are activated, how many elements are deactivated?

In a typical mobile satellite array antenna, if three elements are activated, how many elements are deactivated? Correct Answer 11

Solution

Concept

  • A mobile satellite array antenna consists of 14 dual patch antennas
  • These are located in a truncated cone elevated at an angle of 40∘ to the ground plane
  • Each element has a gain of approximately 8.5dBi
  • This gain is increased by activating a subarray of M adjacent elements that face the satellite
  • A radial divider is used which activates M adjacent elements in the array and deactivates the remaining (14-M) elements

Calculation

We have M =3 ,elements activated

⇒(14 - 3)=11 antenna elements are deactivated

Hence the correct option is 1

 

 

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