Size Reduction of a Low-Profile Spiral Antenna Using Inductive and Dielectric Loading

This letter discusses a miniature low profile ultrawideband (UWB) spiral. The antenna is miniaturized using a combination of dielectric and inductive loading. In addition, a ferrite coated ground plane is adopted in place of the traditional metallic ground plane for profile reduction. Using full-wav...

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Bibliographic Details
Published in:IEEE antennas and wireless propagation letters 2008, Vol.7, p.22-25
Main Authors: Kramer, B.A., Chen, C.-C., Volakis, J.L.
Format: Article
Language:English
Subjects:
Antenna measurements
Aperture antennas
Arm
Bandwidth
Dielectrics
Ferrite ground plane
Ferrites
Frequency
inductive loading
Loaded antennas
low-profile antenna
spiral antenna
Spirals
Ultra wideband technology
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Summary:This letter discusses a miniature low profile ultrawideband (UWB) spiral. The antenna is miniaturized using a combination of dielectric and inductive loading. In addition, a ferrite coated ground plane is adopted in place of the traditional metallic ground plane for profile reduction. Using full-wave simulations and measurements, it is shown that the miniaturized spiral can achieve similar performance to a traditional planar spiral twice its size.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2007.914116