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This paper will present a series of novel polarization reconfigurable antennas for modern wireless applications. First, three multi-linear polarization reconfigurable antennas with the switchable 0°, +45°, 90° and −45° polarizations are investigated for mitigating the polarization mismatching problem in wireless biomedical applications. Three distinctive techniques were adopted to realize the same...
A quasi-planar conical antenna with broad bandwidth (more than 10:1) and omnidirectional radiation pattern has been designed. In order to achieve mechanical stability, conical radiator is realized through thin metallic coating over a cavity etched into a dielectric slab. Due to dielectric loading, the conical antenna in this paper is quasi-planar, low-cost, light, mechanically robust, and easy to...
Conical antennas are widely used in many applications because of their broad input impedance bandwidth and omni-directional radiation pattern (H.Hawasaki and G.Sato). However, conical antennas usually have three-dimensional structures and are, hence, relatively difficult to fabricate and integrate. In (M.Lu,et al), a quasi-planar conical antenna is proposed, where preliminary results indicate that...
In this paper, a quasi-planar wide band conical antenna coated on a dielectric slab is proposed. It is mechanically stable, relatively easy to build and integrate with the planar circuits. Full wave simulation shows that the input impedance of the quasi-planar conical antenna is almost frequency independent over ten octave bandwidth
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