Abstract
There are always some intrinsic tradeoffs among the performance characteristics: radiation efficiency, directivity, and bandwidth, of electrically small antennas (ESAs). A non-Foster enhanced, broad bandwidth, metamaterial-inspired, electrically small, Egyptian axe dipole (EAD) antenna has been successfully designed and measured to overcome two of these restrictions. By incorporating a non-Foster circuit internally in the near-field resonant parasitic (NFRP) element, the bandwidth of the resulting electrically small antenna was enhanced significantly. The measured results show that the 10 dB bandwidth (BW10dB) of the non-Foster circuit-augmented EAD antenna is more than 6 times the original BW10dB value of the corresponding passive EAD antenna.
| Original language | English (US) |
|---|---|
| Journal | Proceedings of the International Telemetering Conference |
| Volume | 48 |
| State | Published - 2012 |
| Event | 48th Annual International Telemetering Conference and Technical Exhibition, ITC/USA 2012 - San Diego, CA, United States Duration: Oct 22 2012 → Oct 25 2012 |
Keywords
- Broadband antennas
- Chu-Thal limit
- electrically small antennas
- metamaterial-inspired antennas
- non-Foster elements
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Instrumentation
- Computer Networks and Communications
- Signal Processing