Investigation of a broad-band cavity-backed array antenna

Investigation of a broad-band cavity-backed array antenna

A new multimode antenna consisting of a circular array of log periodic (LP) elements, suspended in dielectric material and placed in a circular cavity with a conical bottom, is presented and discussed. The conducting elements are contained within the dielectric. Far field patterns obtained using the...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:IEEE transactions on antennas and propagation 2004-07, Vol.52 (7), p.1913-1916
Hauptverfasser: Karr, B.A., Durham, T.E., Chryssomallis, M.T., Kralovec, J.A., Gothard, G.K., Christodoulou, C.G.
Format: Artikel
Sprache:eng
Schlagworte:
Accuracy
Antenna arrays
Antenna measurements
Antennas
Aperture antennas
Arrays
Broadband antennas
Calibration
Conduction
Dielectric materials
Dielectric measurements
Dielectrics
Far fields
Frequency
Holes
Log periodic antennas
Method of moments
Moment methods
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:A new multimode antenna consisting of a circular array of log periodic (LP) elements, suspended in dielectric material and placed in a circular cavity with a conical bottom, is presented and discussed. The conducting elements are contained within the dielectric. Far field patterns obtained using the method of moments (MoM) are compared to experimental measurements and show good agreement for both magnitude and phase. The effect of cavity cone angle on the antenna patterns is presented. Careful selection of the cone angle can result in significant suppression of undesirable higher order resonant modes on the LP elements.
ISSN:0018-926X
1558-2221
DOI:10.1109/TAP.2004.831326