The tangent of the loss angle is equal to the ratio of capacitance to active resistance. Capacitance = 1 / frequency xC. Capacitance will decrease with increasing frequency. At high frequencies, the dielectric constant of the dielectric of the capacitance will decrease. The tangent of the angle of loss will fall.

Thanks you dear kulikov

If loss tangent decreased. Dielecrtic properties of sample was beter yes?

Dear Matin Akbari

I did not measure the loss tangent. I find it difficult to give you the right advice, unfortunately.

V. Kulikov

The value of tangent loss increases at low frequency but decrease at high frequency.

Share with me an information about tangent loss vs frequency graph???????