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

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3 Author(s)
Kramer, B.A. ; Ohio State Univ., Columbus ; Chen, C.C. ; Volakis, J.L.

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.

Published in:

Antennas and Wireless Propagation Letters, IEEE  (Volume:7 )