Dear all,
  I am Vikash Gupta from India.
  I am designing a duplexer having low frequency:230 MHz, High gfreuqency: 234 
MHz.
  I am using coil with 8 no. of turns and 22 PF capacitor.
  I have to get Insertion loss <1.2 on both low and high sides.
  But I have a problem in getting this.
  I have got Rejection of more than 80 dB and Return loss of better than 20 dB 
on both sides.
  Please give me suggestion what I have to do?
  thanks in advance.
  Vikash
   

       
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