| ABSTRACT |
A dielectric loaded helical antenna comprises a deielectric cylindrical core mounted on a reflector and an elongate electrically conductive antenna element having two ends, wherein a first end is connectedto a feed or signal port mounted on the reflector. The antenna element is helically wound around the core in a number of spaced turns while maintaining a constant gap from the side surface of the core with the second end being free. Any direct physical contact of the antenna element with the core is precluded. Also disclosed is such a design, customized for WAP LAN IEEE 80211 b/g 2.4 GHz to 2.48 GHz applications. The customized antenna radiates its electromagnetic properties at the second end of the helix in a hemisphere nearly omni-directionally, being strongest horizontally relative to the vertical axial length of the core.
|
