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.

Date of Patent:
Dec. 02, 2014

Filed:

Jan. 27, 2010
Applicants:

Paul Bradley, Los Altos, CA (US);

Shen YE, Cupertino, CA (US);

Inventors:

Paul Bradley, Los Altos, CA (US);

Shen Ye, Cupertino, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03H 9/00 (2006.01); H03H 9/70 (2006.01); H03H 9/72 (2006.01);
U.S. Cl.
CPC ...
H03H 9/706 (2013.01); H03H 9/725 (2013.01);
Abstract

A filter device is provided for filtering signals. The filter device includes multiple series resonators, multiple shunt resonators and multiple cross-coupling circuits. The series resonators are connected in series between an antenna and one of a transmitter or a receiver. The shunt resonators are respectively connected between at least one of the series resonators and a ground voltage. The cross-coupling circuits are configured to bypass at least two series resonators of the multiple series resonators and at least one shunt resonator of the multiple shunt resonators.


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