Abstract
A compact hyper-band (> 10:1 impedance bandwidth) printed antenna design is investigated numerically and experimentally. It is based on an elliptical-slot antenna augmented with a parasitic oval patch and driven with a specially engineered microstrip-line-fed elliptical tuning fork element. The parasitic and driven elements are adjusted along with the elliptical slot to create additional resonance modes; adjust the coupling strengths among all of the design components; facilitate the overlap of adjacent resonance modes; and fine tune the input impedance. The total size of the final optimized antenna is only 30×40 mm2. It exhibits a -10-dB impedance bandwidth from 2.26 to 22.18 GHz. Desirable radiation performance characteristics, including relatively stable and omni-directional radiation patterns, are obtained over this range. A prototype was fabricated and tested. The experimental results confirm the predicted input impedance bandwidth and radiation characteristics. While the hyper-band performance could be used for high fidelity short pulse applications, the antenna could also be used for multi-band operations from 3.1-10.6 GHz since it covers that entire ultra-wideband (UWB) spectral range.
| Original language | English (US) |
|---|---|
| Article number | 6780602 |
| Pages (from-to) | 2962-2969 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Antennas and Propagation |
| Volume | 62 |
| Issue number | 6 |
| DOIs | |
| State | Published - Jun 2014 |
Keywords
- Compact antennas
- hyper-band
- parasitic elements
- printed slot antennas
- ultra-wideband antenna
ASJC Scopus subject areas
- Electrical and Electronic Engineering