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Title: In-situ active impedance characterization of scanned array antennas

Abstract

Various embodiments presented herein relate to determining mutual coupling between a pair of antennas in an array antenna. Various operations presented herein enable comparison between a magnitude and phase of a signal transmitted from a first feed network (via a first antenna) and a magnitude and phase of a portion of the signal received at a second feed network (via a second antenna). Electrical effects engendered by any of the first feed network, a first switch, a first local circuit, the second feed network, a second switch, and a second local circuit can also be determined and their effects mathematically removed. Based upon the foregoing, a mutual coupling between the pair of antenna is determined.

Inventors:
;
Issue Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1735059
Patent Number(s):
10720703
Application Number:
16/247,932
Assignee:
National Technology & Engineering Solutions of Sandia, LLC (Albuquerque, NM)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01Q - ANTENNAS, i.e. RADIO AERIALS
G - PHYSICS G01 - MEASURING G01R - MEASURING ELECTRIC VARIABLES
DOE Contract Number:  
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 01/15/2019
Country of Publication:
United States
Language:
English

Citation Formats

Loui, Hung, and Christian, Jr., Thomas Edward. In-situ active impedance characterization of scanned array antennas. United States: N. p., 2020. Web.
Loui, Hung, & Christian, Jr., Thomas Edward. In-situ active impedance characterization of scanned array antennas. United States.
Loui, Hung, and Christian, Jr., Thomas Edward. Tue . "In-situ active impedance characterization of scanned array antennas". United States. https://www.osti.gov/servlets/purl/1735059.
@article{osti_1735059,
title = {In-situ active impedance characterization of scanned array antennas},
author = {Loui, Hung and Christian, Jr., Thomas Edward},
abstractNote = {Various embodiments presented herein relate to determining mutual coupling between a pair of antennas in an array antenna. Various operations presented herein enable comparison between a magnitude and phase of a signal transmitted from a first feed network (via a first antenna) and a magnitude and phase of a portion of the signal received at a second feed network (via a second antenna). Electrical effects engendered by any of the first feed network, a first switch, a first local circuit, the second feed network, a second switch, and a second local circuit can also be determined and their effects mathematically removed. Based upon the foregoing, a mutual coupling between the pair of antenna is determined.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2020},
month = {7}
}

Works referenced in this record:

Base station equipment and a method for steering an antenna beam
patent, July 2000


Phased array antenna calibration system and method
patent, March 2001