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Title: Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays

Abstract

The various embodiments presented herein relate to beam steering an array antenna by modifying intermediate frequency (IF) waveforms prior to conversion to RF signals. For each channel, a direct digital synthesis (DDS) component can be utilized to generate a waveform or modify amplitude, timing and phase of a waveform relative to another waveform, whereby the generation/modification can be performed prior to the IF input port of a mixer on each channel. A local oscillator (LO) signal can be utilized to commonly drive each of the mixers. After conversion at the RF output port of each of the mixers, each RF signal can be transmitted by a respective antenna element in the antenna array. Initiation of transmission of each RF signal can be performed simultaneously at each antenna. The process can be reversed during receive whereby timing, amplitude, and phase of the received can be modified digitally post ADC conversion.

Inventors:
;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1330211
Patent Number(s):
9,479,232
Application Number:
14/826,153
Assignee:
Sandia Corporation SNL-A
DOE Contract Number:
AC04-94AL85000
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Aug 13
Country of Publication:
United States
Language:
English

Citation Formats

Loui, Hung, and Brock, Billy C. Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays. United States: N. p., 2016. Web.
Loui, Hung, & Brock, Billy C. Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays. United States.
Loui, Hung, and Brock, Billy C. Tue . "Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays". United States. doi:. https://www.osti.gov/servlets/purl/1330211.
@article{osti_1330211,
title = {Method of achieving ultra-wideband true-time-delay beam steering for active electronically scanned arrays},
author = {Loui, Hung and Brock, Billy C.},
abstractNote = {The various embodiments presented herein relate to beam steering an array antenna by modifying intermediate frequency (IF) waveforms prior to conversion to RF signals. For each channel, a direct digital synthesis (DDS) component can be utilized to generate a waveform or modify amplitude, timing and phase of a waveform relative to another waveform, whereby the generation/modification can be performed prior to the IF input port of a mixer on each channel. A local oscillator (LO) signal can be utilized to commonly drive each of the mixers. After conversion at the RF output port of each of the mixers, each RF signal can be transmitted by a respective antenna element in the antenna array. Initiation of transmission of each RF signal can be performed simultaneously at each antenna. The process can be reversed during receive whereby timing, amplitude, and phase of the received can be modified digitally post ADC conversion.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 25 00:00:00 EDT 2016},
month = {Tue Oct 25 00:00:00 EDT 2016}
}

Patent:

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