Interdigital filter design
时间：04-04
整理：3721RD
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Hi all!
I have some troubles with the design of an interdigital filter. This is the firsth time I am studyng microwave filters design, so, maybe I will say something wrong
The goal is to design an 2 pole filter, with an 50ohm impedance, centered a 1.2 GHz with an badtwidth of 100MHz and a maximally flat response. The insertion loss should be as small as possible.
I started from the lowpass prototype using the butterworth coefficents, afterwards I normalized them in impedance and I did the banpass trasformation.
Now I have this circuit:
I simulated it on spice and it works.
Now I should pass to distributed elements, i think using the kuroda identities and the richard transformations but I am not really sure how to do it.. could I ask some help?
Thank you
I have some troubles with the design of an interdigital filter. This is the firsth time I am studyng microwave filters design, so, maybe I will say something wrong
The goal is to design an 2 pole filter, with an 50ohm impedance, centered a 1.2 GHz with an badtwidth of 100MHz and a maximally flat response. The insertion loss should be as small as possible.
I started from the lowpass prototype using the butterworth coefficents, afterwards I normalized them in impedance and I did the banpass trasformation.
Now I have this circuit:
I simulated it on spice and it works.
Now I should pass to distributed elements, i think using the kuroda identities and the richard transformations but I am not really sure how to do it.. could I ask some help?
Thank you