Abstract
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 6.02 and 3.89 times greater than, respectively, the simulated and measured values of the original passive design.
Original language | English (US) |
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Article number | 6305461 |
Pages (from-to) | 1116-1120 |
Number of pages | 5 |
Journal | IEEE Antennas and Wireless Propagation Letters |
Volume | 11 |
DOIs | |
State | Published - Oct 22 2012 |
Keywords
- Broadband antennas
- Chu-Thal limit
- Electrically small antennas (ESAs)
- Metamaterial-inspired antennas
- Non-Foster elements
ASJC Scopus subject areas
- Electrical and Electronic Engineering