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A Micro-Electro-Mechanical System (MEMS) based Q band Substrate Integrated Waveguide (SIW) multi-beam antenna was designed, fabricated and measured. Fed by a 4×4 SIW Butler matrix, the prototype antenna can generate 4 beams simultaneously with respect to its 4 ports. The radiators of the proposed antenna are SIW transverse slots. At 45GHz, the measured 4 beam angles with respect to normal direction...
A wide slot antenna backed by a substrate integrated waveguide (SIW) cavity is presented and investigated for the enhancement of operating bandwidth at 60-GHz band. The 10-dB return loss impedance bandwidth of the antenna increases from 3% to 11.6% with consistent radiation performance as the width to length ratio (WLR) of the rectangular slot cutting from the SIW increases from 0.12 to 0.71. Its...
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