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:
Jan. 26, 2021
Filed:
Jun. 04, 2018
Infineon Technologies Ag, Neubiberg, DE;
Samo Vehovc, Unterhaching, DE;
Ivan Tsvelykh, Munich, DE;
INFINEON TECHNOLOGIES AG, Neubiberg, DE;
Abstract
A method for calibration in a phased array antenna includes generating, by a master clock, a reference clock signal and generating an output signal corresponding to the reference clock signal by a phase-locked loop. The method further includes generating, by a local oscillator (LO), an LO signal corresponding to the output signal and generating a transmit calibration tone corresponding to a leakage of the LO signal and a direct current signal by an in-phase and quadrature (IQ) modulator. The method further includes receiving, by a phase detector in each of a plurality of RF devices in the phased array antenna, the transmit calibration tone and determining a relative phase shift between the transmit calibration tone and the reference clock signal received at an input of each of the plurality of RF devices by the phase detector.