This paper presents a structure to realize a planar dual-band omni-directional antenna. Firstly, the omnidirectional resonant modes of a circular and a ring patch antenna are found by theoretical ...

This research proposes a novel dual-band (2.45/5.80 GHz) omnidirectional circularly polarized (CP) biconical antenna with double-circular parasitic parallelepiped elements for wireless local area ...

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