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A novel slotted substrate integrated waveguide (SIW) leaky-wave antenna is proposed. This antenna works in the TE mode of the SIW. Leakage is obtained by introducing a periodic set of transverse slots on the top of the SIW, which interrupt the current flow on the top wall. It is seen that three modes (a leaky mode, a proper waveguide mode, and a surface-wave-like mode) can all propagate on this...
A substrate integrated waveguide (SIW) leaky wave antenna with transverse slots has been presented. This SIW leaky-wave antenna has beam scanning from near broadside to forward endfire. However, the nature of the waves propagating in the SIW with transverse slots was not analyzed theoretically. Usually, the SIW can be approximated as a rectangular waveguide. Therefore, for understanding the modes...
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