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Broadband array antennas using a self-complementary antenna array and dielectric slabs

Gustafsson, Mats LU (2004) In Technical Report LUTEDX/(TEAT-7129)/1-8/(2004) TEAT-7129.
Abstract
It is well known that planar self-complementary structures have a constant

input impedance and hence they are good candidates for ultra-wideband antennas.

However, introduction of a ground plane breaks the symmetry and

destroys the broadband property. In this paper, it is shown that stacking of

dielectric slabs above the antenna elements can reduce the degrading eject of

the ground plane. The dielectric slabs act as filters adding loops in the center

of the Smith chart. The results are illustrated with infinite antenna arrays

with broadside bandwidths of 4.7:1 at -13dB and of 5.5:1 at -17dB for the

cases of two and three dielectric slabs, respectively.
Please use this url to cite or link to this publication:
author
organization
publishing date
type
Book/Report
publication status
published
subject
in
Technical Report LUTEDX/(TEAT-7129)/1-8/(2004)
volume
TEAT-7129
pages
8 pages
publisher
[Publisher information missing]
language
English
LU publication?
yes
id
f974b70c-5a3a-48ab-ae10-f4bf4fd38a1d (old id 530284)
date added to LUP
2007-09-06 15:16:07
date last changed
2016-04-16 11:30:24
@techreport{f974b70c-5a3a-48ab-ae10-f4bf4fd38a1d,
  abstract     = {It is well known that planar self-complementary structures have a constant<br/><br>
input impedance and hence they are good candidates for ultra-wideband antennas.<br/><br>
However, introduction of a ground plane breaks the symmetry and<br/><br>
destroys the broadband property. In this paper, it is shown that stacking of<br/><br>
dielectric slabs above the antenna elements can reduce the degrading eject of<br/><br>
the ground plane. The dielectric slabs act as filters adding loops in the center<br/><br>
of the Smith chart. The results are illustrated with infinite antenna arrays<br/><br>
with broadside bandwidths of 4.7:1 at -13dB and of 5.5:1 at -17dB for the<br/><br>
cases of two and three dielectric slabs, respectively.},
  author       = {Gustafsson, Mats},
  institution  = {[Publisher information missing]},
  language     = {eng},
  pages        = {8},
  series       = {Technical Report LUTEDX/(TEAT-7129)/1-8/(2004)},
  title        = {Broadband array antennas using a self-complementary antenna array and dielectric slabs},
  volume       = {TEAT-7129},
  year         = {2004},
}