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:
Apr. 30, 2024
Filed:
Oct. 04, 2022
Nec Advanced Networks, Inc., New Providence, NJ (US);
Gregg S. Nardozza, Madison, NJ (US);
Giovanni Marzin, San Michele al Tagliamento, IT;
Yiping Feng, Skillman, NJ (US);
Robert C. Frye, Piscataway, NJ (US);
Mihai Banu, New Providence, NJ (US);
NEC Advanced Networks, Inc., New Providence, NJ (US);
Abstract
A method of calibrating a transmitter chain in a phased array system in which a lower guard band is assigned to a lower side of an operating carrier of a communication channel and an upper guard band is assigned an upper side of the operating carrier includes injecting a first calibration tone into the transmitter chain and detecting its arrival at the end of the transmitter chain, at which point a first detected calibration signal is generated. The first detected calibration signal and the injected first calibration tone are then compared to produce a first comparison signal. The transmitter chain's phase and/or gain is then adjusted based on this first comparison signal. The first calibration tone located within one of the lower and upper guard bands of the communication channel of the transmitter chain.