NOVEL ULTRAWIDE-BANDWIDTH VIVALDI ANTENNA WITH LOW CROSS-POLARIZATION

Authors
LANGLEY JDS HALL PS NEWHAM P
Citation
Jds. Langley et al., NOVEL ULTRAWIDE-BANDWIDTH VIVALDI ANTENNA WITH LOW CROSS-POLARIZATION, Electronics Letters, 29(23), 1993, pp. 2004-2005
Citations number
3
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
Electronics Letters → ACNP
ISSN journal
00135194
Volume
29
Issue
23
Year of publication
1993
Pages
2004 - 2005
Database
ISI
SICI code
0013-5194(1993)29:23<2004:NUVAWL>2.0.ZU;2-P
Abstract
The conventional Vivaldi antenna typically has a bandwidth of less tha n 3:1, limited by the feed line to radiating slot transition. The anti podal Vivaldi antenna removes this limitation but gives very high cros spolarisation which is undesirable for phased array applications. The Letter describes a new balanced antipodal Vivaldi antenna that retains the wide bandwidth characteristics while reducing the crosspolarisati on by 15 dB across an 18:1 band. Measurements are presented that compa re the performance of existing antenna structures with this novel ante nna element.