Back to results
US 2006/0053193 A1Published application
Complex multiple feedback filter
AssigneeBerkana Wireless, Inc.
InventorsOzan Erdogan, Cormac Conroy
Life of this patent
Estimating the term…
Abstract
A complex filter includes an I channel having a first I channel output and a second I channel output and a Q channel having a first Q channel output and a second Q channel output. The second I channel output is input to the Q channel through a first passive network and wherein the second Q channel output is input to the I channel through a second passive network.
Claims24
A multiple feedback filter comprising:
- one or more op amps implemented in an I or Q channel;
- a first linking network of at least one capacitor and at least one resistor linking a Q channel output back to an I channel input;
- and
- a second linking network of at least one capacitor and at least one resistor linking an I channel output back to a Q channel input.
1 more element
A method of linking channels in a multiple feedback filter comprising:
- linking a Q channel output to an I channel input through at least one capacitor and at least one resistor;
- and
- linking an I channel output to an Q channel input through at least one capacitor and at least one resistor.
Dependencies are inferred from the claim text.