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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 orcid (2019) In IEEE Transactions on Antennas and Propagation 67(10). p.6667-6671
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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author
; and
organization
publishing date
type
Contribution to journal
publication status
published
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
volume
67
issue
10
pages
6667 - 6671
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
2025-10-14 11:13:05
@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}},
  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}},
  language     = {{eng}},
  month        = {{07}},
  number       = {{10}},
  pages        = {{6667--6671}},
  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}},
  doi          = {{10.1109/TAP.2019.2925967}},
  volume       = {{67}},
  year         = {{2019}},
}