Wideband 1GHz-10GHz Filter - basicquestions

[bhargav pandya]

Wideband Filter

Hello all

Is it possible to design an Ultra Wideband Analog Filter?

Let's say for a frequency from 1G- 10GHz.

What kind of filter would work for that frequency?

What should be the rank of the filter?

Need immediate help pls.

Thanks in advance and reviewing my post.

 

[Annirak]

Wideband Filter

How steep does the rolloff need to be? You might do best with a high pass filter and a lowpass filter. I've also seen several bandpass filters used together as a means of widening the passband. This leaves a good deal of ripple in the passband, however.

Please let us know what your stopband needs to be.

 

[bhargav pandya]

Wideband Filter

Thanks for reply.

The filter will be used for impedance matching for an RF receiver.

The receiver is going to be designed for 1-10G. What should be the order of filter if I want to do a BPF?

 

[Annirak]

Wideband Filter

If you're matching the S parameters of the RF amplifier, then you don't have much choice in which values to use. You can usually make either a lowpass or a highpass filter, depending on what the matching parameters you have are. I would suggest choosing either a lowpass or a highpass filter to match the S parameters, then if you use a lowpass filter on the input to the filter, use a high-pass filter to do output matching (or vice-versa).