Abstract:A planar wideband circularly polarized (CP) end-fire antenna is presented for millimeter-wave (mm-wave) applications. First, the antenna consists of an open-ended substrate integrated waveguide (SIW) feeding line in the middle, a pair of stacked substrates with shorted triangular patches on both upper and lower sides, and an offset parallel strip. The shorted triangular patch is viewed as a horizontally polarized electric dipole, while the open-ended SIW is equivalent to an enhanced magnetic dipole due to the … Show more
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