Summary
URSI Commission B 2013 International Symposium on Electromagnetic Theory EMTS 2013
2013
Session Number:24AM1C
Session:
Number:24AM1C-04
Wideband, Wide Scanning Conformal Arrays with Practical Integrated Feeds
Jonathan P. Doane, Willam F. Moulder, Kubilay Sertel, John L. Volakis,
pp.859-862
Publication Date:2013/5/20
Online ISSN:2188-5079
DOI:10.34385/proc.30.24AM1C-04
Summary:
A key challenge in designing wideband dipole arrays is developing a wideband balun that is sufficiently compact to fit within a single unit cell. A new technique has recently been developed which uses the the reactance of a compact balun as an impedance matching network to improve the bandwidth of a Tightly Coupled Dipole Array (TCDA). In this paper, we apply this technique to two TCDA designs, with and without resistive loading. The first design uses a compact balun and low-loss materials to achieve 7.2:1 bandwidth, with VSWR<2.6:1 while scanning to ±45° in all planes. The second design uses a similar balun design along with a resistive sheet placed below the dipoles, achieving a bandwidth of 14.2:1 with VSWR<2.4:1 at broadside, and > 70% efficiency across most of the band.