Abstract:In this article, an unequally spaced resonant slotted‐waveguide antenna array with low side lobe level (SLL) is presented. In the conventional resonant arrays with longitudinal slots on the waveguide broad wall, slots must be separated one half guided wavelength (λg/2) from each other and be on opposite sides of the center line to have an in‐phase excitation. The open‐ended substrate integrated waveguide (SIW) resonator can support a resonance mode with the infinite wavelength. Hence using this kind of resonat… Show more
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