Modified Clover Arranged Reactively Loaded Dual Band Polarization Agile Omnidirectional Wire Antenna

Major limitation of planar (microstrip) antenna is its inability to provide omni-directional radiation patterns. Base station trans-receiver antennas for mobile communication require omni-directional radiation patterns. In this report an efficient four looped modified and reactively loaded clover arranged omni-directional polarization agile (circularly polarized in lower band an d dual polarized in higher band) wire antenna has been presented for dual band viz. mobile communication and WiMAX frequency operations.