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:
Mar. 07, 2023
Filed:
Jun. 24, 2021
Applicant:
Imec Vzw, Leuven, BE;
Inventors:
Yang Zhang, Heverlee, BE;
Pierre Wambacq, Groot-Bijgaarden, BE;
Assignee:
IM EC VZW, Leuven, BE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03H 7/40 (2006.01); G01R 27/16 (2006.01); H04B 1/04 (2006.01); H04B 1/18 (2006.01);
U.S. Cl.
CPC ...
H03H 7/40 (2013.01); G01R 27/16 (2013.01); H04B 1/0458 (2013.01); H04B 1/18 (2013.01);
Abstract
An RF impedance measurement circuit includes a sensing capacitor connectable with an RF signal path; a first amplitude detector and a first frequency divider, each coupled, with the measurement circuit in operation, to the RF signal path at a first terminal of the sensing capacitor; a second amplitude detector and a second frequency divider, each coupled, with the measurement circuit in operation, to a second terminal of the sensing capacitor; and a phase detection circuit connected to an output of the first frequency divider and to an output of the second frequency divider.