Broad-Bandwidth, Electrically Small Antenna Augmented With an Internal Non-Foster Element

  title={Broad-Bandwidth, Electrically Small Antenna Augmented With an Internal Non-Foster Element},
  author={Ning Zhu and R. W. Ziolkowski},
  journal={IEEE Antennas and Wireless Propagation Letters},
A broad-bandwidth, electrically small, near-field resonant parasitic (NFRP) dipole antenna has been designed, analyzed, and measured. Unlike conventional active external matching network approaches, a non-Foster component with a negative reactance slope was incorporated into the NFRP element of an Egyptian-axe dipole antenna to significantly increase its bandwidth. The measurement results showed approximately a 25.3 MHz 10 dB bandwidth around 300 MHz for the active system (ka=0.49), which is 6… CONTINUE READING
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