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

  title={Unveiling Magnetic Dipole Radiation in Phase-Reversal Leaky-Wave Antennas},
  author={Shulabh Gupta and Li Jun Jiang and Christophe Caloz},
  journal={IEEE Antennas and Wireless Propagation Letters},
The radiation principle of traveling-wave-type phase-reversal antennas is explained in detail, unveiling the presence of magnetic-dipole radiation in addition to well-known electric dipole radiation. It is pointed 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 traveling-wave antenna alternately operates as an array… 

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