IMPROVING EFFICIENCIES OF SUPERDIRECTIVE ARRAYS OF MONOPOLES OVER LOSSY GROUNDPLANES BY USING SUPERCONDUCTING DISC OVERLAYS

Authors
COOK GG KHAMAS SK BOWLING DR
Citation
Gg. Cook et al., IMPROVING EFFICIENCIES OF SUPERDIRECTIVE ARRAYS OF MONOPOLES OVER LOSSY GROUNDPLANES BY USING SUPERCONDUCTING DISC OVERLAYS, IEE proceedings. Microwaves, antennas and propagation, 142(6), 1995, pp. 462-466
Citations number
10
Categorie Soggetti
Optics
Journal title
IEE proceedings. Microwaves, antennas and propagation → ACNP
ISSN journal
13502417
Volume
142
Issue
6
Year of publication
1995
Pages
462 - 466
Database
ISI
SICI code
1350-2417(1995)142:6<462:IEOSAO>2.0.ZU;2-4
Abstract
Electrically small perfectly conducting superdirective monopole arrays above lossy metal groundplanes are analysed at 5000 MHz using a momen t method incorporating Sommerfeld terms. It is shown that significant improvements in efficiency are obtained when small perfectly conductin g discs, which can be realised using high-temperature superconductors, are attached to the monopole bases, compared with the monopoles being directly connected to the groundplanes.