23 GHz band-pass filter

Hi guys,

what is the best solution to build a band pass filter in the 20 GHz band......!
Is it possible with the microstrip tecnique with a teflon substrate Hight= 0.3 mm Er=2.5 ?


Thank you

please give the specifications of the filter

Hy guys,

the filter specifications example are :

Fcenter: 21.5 GHz
F@-3dB : 21.2 GHz - 21.8 GHz
F@-40dB : 20.5 GHz

Thank you