Title:
TUNABLE FILTER DEVICES AND METHODS
Document Type and Number:
WIPO Patent Application WO/2012/030658
Kind Code:
A3
Abstract:
Analog interference filter devices and methods for isolation of desirable portions of a radio frequency signal. Signal compensation is used to provide desirable center frequency, passband width, ripple, rolloff, stopband and distortion performance. The filter is implemented with passive and/or active components.
Inventors:
WILKERSON JONATHAN RYAN (US)
Application Number:
PCT/US2011/049399
Publication Date:
April 26, 2012
Filing Date:
August 26, 2011
Export Citation:
Assignee:
PHYSICAL DEVICES LLC (US)
WILKERSON JONATHAN RYAN (US)
WILKERSON JONATHAN RYAN (US)
International Classes:
H04B1/06; H03H11/04
Foreign References:
| US6359503B1 | 2002-03-19 | |||
| US20030130751A1 | 2003-07-10 | |||
| US5736909A | 1998-04-07 | |||
| US20080136473A1 | 2008-06-12 |
Other References:
See also references of EP 2612440A4
Attorney, Agent or Firm:
DEWITT, Timothy, R. (PLLC12 E Lake D, Annapolis MD, US)
Download PDF:
Previous Patent: METHOD AND SYSTEM FOR SEARCHING FOR CONTENT IN A USER DEVICE
Next Patent: DIELECTRIC ENHANCED MIRROR FOR IMOD DISPLAY
Next Patent: DIELECTRIC ENHANCED MIRROR FOR IMOD DISPLAY