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how to differentiate filter fron antenna

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sundarmeenakshi

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dilectric reasonator filter. i got s11 tip and s21 tip.
for antenna also i am getting s11 tip and s21 tip.
how can i differentiate wheather the device is working like antenna or filter
 

Manjunatha_hv

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Hello,

Just See the Radiation Patterns to differentiate between Antenna & Filter...
& also E & H Fields...

Are you referring to Differential Antenna ? (If not then it is a Single port device which doesn't have S21!!!)

---manju---
 

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