Dielectrically Loaded Antenna
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United States of America Patent
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app pub date -
May 22, 2012
filing date -
May 24, 2011
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Abandoned
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Abstract
A dielectrically loaded antenna for operation at first and second frequencies above 200 MHz with circularly polarized radiation includes an electrically insulative dielectric core of solid material having a relative dielectric constant greater than 5, and a three-dimensional antenna element structure linked to a pair of feed coupling nodes. The antenna element structure is divided into a distal section and a proximal section respectively having a first set of elongate conductors on or adjacent a distal part of the core side surface portion and a second set of elongate conductors on or adjacent a proximal part of the core side surface portion, and wherein the first set of conductors is resonant at the first operating frequency and the second set of conductors is resonant at the second operating frequency.
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