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Multi-Port Element for Grating Lobe Suppression in Sparse VHF Phased Array Radars

Helander, Jakob LU ; Tayli, Doruk LU and Sjoberg, Daniel LU (2019) In IEEE Transactions on Antennas and Propagation
Abstract

A multi-port element approach, engineered to address practical design challenges of very high frequency (VHF) phased array radar systems, is presented in this communication. A cornerstone of the antenna element design is its simplicity, which counteracts the mobility issues of physically large and unavoidably bulky ground-based VHF radar systems. The multi-port element introduces a third dimension in the otherwise planar array configuration. Using a non-linear optimization scheme to realize a set of matching networks for the element, the active loading from surrounding elements in the array environment is suppressed resulting in a non-distorted embedded element pattern. The element is compared to the resembling Yagi-Uda design in terms... (More)

A multi-port element approach, engineered to address practical design challenges of very high frequency (VHF) phased array radar systems, is presented in this communication. A cornerstone of the antenna element design is its simplicity, which counteracts the mobility issues of physically large and unavoidably bulky ground-based VHF radar systems. The multi-port element introduces a third dimension in the otherwise planar array configuration. Using a non-linear optimization scheme to realize a set of matching networks for the element, the active loading from surrounding elements in the array environment is suppressed resulting in a non-distorted embedded element pattern. The element is compared to the resembling Yagi-Uda design in terms of standard multi-port and radar metrics. Simulated results indicate that the element enables a significant suppression of grating lobes when beam steering within a limited angular sector, which in turn has an overall positive impact on the array performance.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Contribution to journal
publication status
epub
subject
keywords
3D array, Bandwidth, Computer architecture, grating lobe, multi-port, Network topology, non-linear optimization, phased array, Quality of service, radar, Routing, Servers, Topology, VHF
in
IEEE Transactions on Antennas and Propagation
publisher
IEEE--Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85069925188
ISSN
0018-926X
DOI
10.1109/TAP.2019.2925967
language
English
LU publication?
yes
id
cba6718f-9858-4919-8354-956759fdb723
date added to LUP
2019-08-23 11:24:32
date last changed
2019-09-04 04:48:15
@article{cba6718f-9858-4919-8354-956759fdb723,
  abstract     = {<p>A multi-port element approach, engineered to address practical design challenges of very high frequency (VHF) phased array radar systems, is presented in this communication. A cornerstone of the antenna element design is its simplicity, which counteracts the mobility issues of physically large and unavoidably bulky ground-based VHF radar systems. The multi-port element introduces a third dimension in the otherwise planar array configuration. Using a non-linear optimization scheme to realize a set of matching networks for the element, the active loading from surrounding elements in the array environment is suppressed resulting in a non-distorted embedded element pattern. The element is compared to the resembling Yagi-Uda design in terms of standard multi-port and radar metrics. Simulated results indicate that the element enables a significant suppression of grating lobes when beam steering within a limited angular sector, which in turn has an overall positive impact on the array performance.</p>},
  author       = {Helander, Jakob and Tayli, Doruk and Sjoberg, Daniel},
  issn         = {0018-926X},
  keyword      = {3D array,Bandwidth,Computer architecture,grating lobe,multi-port,Network topology,non-linear optimization,phased array,Quality of service,radar,Routing,Servers,Topology,VHF},
  language     = {eng},
  month        = {07},
  publisher    = {IEEE--Institute of Electrical and Electronics Engineers Inc.},
  series       = {IEEE Transactions on Antennas and Propagation},
  title        = {Multi-Port Element for Grating Lobe Suppression in Sparse VHF Phased Array Radars},
  url          = {http://dx.doi.org/10.1109/TAP.2019.2925967},
  year         = {2019},
}