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:
Feb. 20, 2024
Filed:
Sep. 07, 2021
Applicant:
Qualcomm Incorporated, San Diego, CA (US);
Inventors:
Kai Zhan, San Diego, CA (US);
Chinmaya Mishra, San Diego, CA (US);
Assignee:
QUALCOMM Incorporated, San Diego, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H03H 11/04 (2006.01); H03F 3/24 (2006.01); H04B 1/04 (2006.01);
U.S. Cl.
CPC ...
H03H 11/04 (2013.01); H03F 3/245 (2013.01); H04B 1/04 (2013.01); H03F 2200/451 (2013.01); H03H 2011/0488 (2013.01);
Abstract
A dual mode notch filter for use in a multi-band millimeter wave (mmW) transmitter includes a transmit filter circuit disposed between two amplifiers in a mmW transmit signal path, the transmit filter circuit formed by at least one switch, at least one capacitor, and a double-tuned transformer, the transmit filter circuit having at least two modes configured to selectively filter a spurious signal in at least a first communication band.