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arXiv · 1401.0242

Unveiling Magnetic Dipole Radiation in Phase-Reversal Leaky-Wave Antennas

Shulabh Gupta·Li Jun Jiang·Christophe Caloz
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Abstract

The radiation principle of travelling-wave type phase-reversal antennas is explained in details, unveiling the presence of magnetic-dipole radiation in addition to well-known electric dipole radiation. It is point out that such magnetic dipole radiation is specific to the case of traveling-wave phase-reversal antennas whereas only electric-dipole radiation exists in resonant-type phase-reversal antennas. It is shown that a phase-reversal travelling-wave antenna alternately operates as an array of magnetic dipoles and an array of electric-dipoles during a time-harmonic period. This radiation mechanism is confirmed through both full-wave and experimental results.

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Shulabh Gupta, Li Jun Jiang, Christophe Caloz. 2014-01-01. Unveiling Magnetic Dipole Radiation in Phase-Reversal Leaky-Wave Antennas. https://doi.org/10.1109/lawp.2014.2317739

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