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Effective guided wavelength can be controlled in both negative and positive by metamaterials. Metamaterials are applied to some kinds of slotted waveguide leaky-wave array antenna. First, left-handed waveguide leaky-wave slot array antenna is developed by using perturbation waveguide circuits for phase advance. Beam scanning performance is obtained and the beam direction is controlled by changing...
The purpose of this research is to improve design flexibility of array antenna operating on traveling-wave excitation. Beam direction can be controlled by phase change caused by transmitting through the periodic structure in slotted waveguide. The slot array antenna on a left-handed waveguide (LHWG) is designed in this paper. The antenna was composed of slots on a left-handed waveguide in which pairs...
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