Php Code for Antenna 3 Db Bandwidth

This php programming code is used to find the antenna 3 db bandwidth . You can select the whole php code by clicking the select option and can use it. When you click text, the code will be changed to text format. This php program code will be opened in a new pop up window once you click pop-up from the right corner. You can just copy, paste this php code and use it to find the antenna 3 db bandwidth .

<?php 
         $a;$f=1;$q=2;$b;$c;
         $a = $f*(sqrt(1+1/(4*$q*$q))-(1/(2*$q)));
         $b=$f*(sqrt(1+1/(4*$q*$q))+(1/(2*$q)));
         $c=$b-$a;
         echo sprintf("Lower cut off frequency = %f",$a);
         echo sprintf("\nUpper cut off frequency = %f",$b);
         echo sprintf("\n3 dB Bandwidth = %f",$c);
?>
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Click on the select code link to copy and paste this free php program code for antenna 3 db bandwidth calculator.

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