Optimization of log-periodic dipole array antennas for wideband omnidirectional radiation
R Lehmensiek, DIL De Villiers - IEEE Transactions on …, 2015 - ieeexplore.ieee.org
R Lehmensiek, DIL De Villiers
IEEE Transactions on Antennas and Propagation, 2015•ieeexplore.ieee.orgThis communication shows that, given the correct terminal voltages on each element, a log-
periodic dipole array (LPDA) can achieve an omnidirectional radiation pattern over a wide
frequency bandwidth. This cannot be achieved by analytical means, but through a global
search optimization strategy. An optimization method, which achieves omnidirectional
radiation of the array with maximum gain deviations of less than 0.06 dB over more than
30% bandwidth, is discussed and the results are presented.
periodic dipole array (LPDA) can achieve an omnidirectional radiation pattern over a wide
frequency bandwidth. This cannot be achieved by analytical means, but through a global
search optimization strategy. An optimization method, which achieves omnidirectional
radiation of the array with maximum gain deviations of less than 0.06 dB over more than
30% bandwidth, is discussed and the results are presented.
This communication shows that, given the correct terminal voltages on each element, a log-periodic dipole array (LPDA) can achieve an omnidirectional radiation pattern over a wide frequency bandwidth. This cannot be achieved by analytical means, but through a global search optimization strategy. An optimization method, which achieves omnidirectional radiation of the array with maximum gain deviations of less than 0.06 dB over more than 30% bandwidth, is discussed and the results are presented.
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