Slot spiral antenna
- 1 December 2001
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Antennas and Propagation Magazine
- Vol. 43 (6) , 15-26
- https://doi.org/10.1109/74.979491
Abstract
When compared to printed cavity-backed spirals, slot spiral antennas offer the possibility of designs that are conformal and very thin. We discuss the physical characteristics of a cavity-backed slot spiral, as well as the associated infinite balun and termination designs. Simulations of the proposed cavity-backed spiral are presented and used to optimize the antenna's various parameters. Comparisons of measurements and calculations are also given, to validate the gain and axial-ratio computations. Several options for miniaturizing this design, using capacitive and inductive loadings, are also presented.Keywords
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