Wideband circularly polarized antenna loaded with π‐shaped dipole for millimeter‐wave applications
Yikai Zheng,
Ke Han,
Zhuoxi Jiang
et al.
Abstract:This paper presents a novel wideband circularly polarized antenna that is fed by substrate‐integrated waveguide. Based on the design of placing a pair of chamfered semicircular patches above a slot, a ‐shaped radiator is introduced between the semicircular patches. Multiple resonance points are generated by the combination of the entire radiating structure and a dumbbell‐shaped slot, resulting in improved impedance bandwidth and axial ratio (AR) bandwidth. The proposed element exhibits a wide impedance bandwid… Show more
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