Analog flexible filter design in a receiver architecture

[imar]

Analog filter design

Hi my friends,
i have a question.
i am wondering if it is possible de design a flexible filter in a radio receiver that would have a variable bandwidth ( from 10 MHz to 100 MHz) and its central frequency would be also variable ( from 30 MHz to 80 MHz)?
it would be a bandpass analog filter.
So, could these constaints be satisfyied while designing an analog filter that will be placed on a receiver path.
it is only an idea and i need to be sure of its feasability before.
if it is possible, i will appreciate any help to give me suggestion on how should i design it friends.

best regards,

imar

 

[BigBoss]

You may try a "tracking filter" with varicap diodes.These filters are generally used in TV or Radio tuners,you can inspire from them to build up yours