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:
Aug. 22, 2023
Filed:
Jul. 04, 2021
Kmw Inc., Hwaseong-si, KR;
Duk Yong Kim, Hwaseong-si, KR;
Bae Mook Jeong, Hwaseong-si, KR;
Chang Woo Yoo, Hwaseong-si, KR;
Young Chan Moon, Hwaseong-si, KR;
Nam Shin Park, Hwaseong-si, KR;
Bum Sik Park, Hwaseong-si, KR;
Min Seon Yun, Hwaseong-si, KR;
Min Sik Park, Hwaseong-si, KR;
Sung Ho Jang, Hwaseong-si, KR;
KMW INC., Hwaseong-si, KR;
Abstract
Provided is a multiple-input multiple-output (MIMO) antenna having a lightweight stacked structure. According to one aspect of the present invention, there is provided a MIMO antenna assembly having a lightweight stacked structure, in which a calibration network, which was provided between antenna elements and filters in the related art, is provided on one printed circuit board (PCB), together with a power amplifier and a digital circuit, and filters are closely coupled to the bottom of the PCB on which the feeding network is provided. The present invention employs a strategy in which an antenna assembly is reduced to a compact size while managing phase deviation caused due to filters at an acceptable level. According to another aspect of the present invention, there is provided a calibration method, in which transmission/reception (TX/RX) calibration may be performed by a single calibration hardware component of a MIMO antenna operated by a time division duplex (TDD) scheme and may be performed in real time during the operation of the MIMO antenna, and the MIMO antenna employing the calibration method.