Directive, electrically-small UWB antenna system and method
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United States of America Patent
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Dec 8, 2015
Grant Date -
Jan 31, 2013
app pub date -
Apr 1, 2012
filing date -
Apr 1, 2011
priority date (Note) -
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Abstract
A directive electrically small antenna (DESA) process and method employs multipole synthesis to implement directive electrically small multipole antennas with ultra-wideband (UWB) stable antenna patterns. Although lossy, embodiments have adequate efficiency to work as receive antennas in the high ambient noise environment of the HF band and below. Employing a process dubbed “antenna regeneration,” energy may be circulated within an antenna by means other than resonance. This enables multiple decade UWB response without the efficiency penalties inherent to traditional resistively-loaded antenna systems. Regenerative antennas can simultaneously achieve the performance of high Q resonant antennas and the bandwidth of resistively loaded antennas.
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