Notch filter design with inductors of maximum quality of 6

[aryajur]

Notch Filter Design

Hello,
I need a notch filter topology to give me a notch at 2.2 GHz. The notch should be of as low order as possible preferably 2. Also, I need to realise this with Inductors with a maximum quality factor of 6. Any suggestions would help.

 

[batdin]

Re: Notch Filter Design

I wouldn't use inductors at 2.2GHz.I would use microstrip filter instead (very simple).
By the way,you mentioned nothing about the desired attenuation and bandwidth.

 

[aryajur]

Re: Notch Filter Design

The Bandwidth of the notch is 220MHz. Also the attenuation should be -40dB below the zero frequency value at the notch frequency

 

[hitmo]

Re: Notch Filter Design

The Bandwidth of the notch is 220MHz. Also the attenuation should be -40dB below the zero frequency value at the notch frequency

Hi

for that wide BW n attenuation u can easily realize it with 3 or 5 section quaterwave coupled microstrip section.

 

[hitmo]

Re: Notch Filter Design

hi

see if this helps. this is a quaterwave coupled 5 section notch filter on a rogers6006 20mil 1/2 oz cu. i optimized the circuit using designer and modeled it on hfss.