The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 02, 2019
Filed:
Oct. 15, 2015
Applicant:
Snaptrack, Inc., San Diego, CA (US);
Inventor:
Andreas Bergmann, Haiming, DE;
Assignee:
SnapTrack, Inc., San Diego, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/145 (2006.01); H03H 9/64 (2006.01); H03H 9/00 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
H03H 9/14597 (2013.01); H03H 9/0038 (2013.01); H03H 9/14514 (2013.01); H03H 9/14588 (2013.01); H03H 9/6436 (2013.01); H03H 9/72 (2013.01);
Abstract
In an arrangement having a DMS filter, it is provided to symmetrically divide at least one of the transducers (W) of the DMS filter (DMS) into two sub-transducers (T,T') electrically connected in parallel and to shift them apart from each other by an amount of at least a half wavelength. This results in the signals of the two sub-transducers canceling each other out at a frequency in a stopband and thereby generating an attenuation pole in the upper blocking region.