Abstract
In this paper, a polarization-plane-controllable beam-scanning leaky-wave antenna based on pseudo-traveling-wave resonance is proposed and demonstrated by using nonreciprocal metamaterials. The antenna is composed of a ferrite-microstrip-line-based nonreciprocal composite right/left-handed transmission-line resonator that is terminated with tunable reactive loads for reflectors and a feed line. By changing the externally applied dc magnetic field to the ferrite, beam scanning was achieved at the fixed frequency. In addition, plane of polarization can be rotated independently by changing the phase condition of the reflectors. The numerical and experimental results verified the basic concept.
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