Abstract

Planar arrays with circular polarization are frequently used in a large variety of applications. The typical choices are quite limited when size, bandwidth, efficiency, and simplicity are important. The paper proposes a new type of radiating element that seems to cope with all these requirements. The well-known helix antenna is fed by a slot in the ground plane of a microstrip-feeding line. The measurements show a successful combination of the excellent characteristics of the helix antenna, with the simplicity of fabrication of the microstrip networks.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>

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