Abstract
In this paper the gain enhancement of an ultra-wideband (UWB) antenna, achieved using an appropriately designed multi-layer frequency selective surface (FSS) reflector is demonstrated. The proposed novel FSS reflects effectively in-phase over a bandwidth of about 145%. Consequently, significant enhancement in antenna gain has been achieved with a low-profile configuration without compromising the impedance bandwidth of the UWB antenna. The composite structure is compact, with a total height of λ/4 where λ is the free-space wavelength at the lowest operating frequency of 3 GHz. Experimental results show an impedance bandwidth of 145% BW with FSS and 149% without FSS. The antenna gain is maintained around 9.3 dBi from 3 to 15 GHz with a variation of ±0.5 dB. The predicted wideband antenna performance and gain enhancement due to the presence of the FSS reflector are discussed.
| Original language | English |
|---|---|
| Title of host publication | Proceedings of the 5th European Conference on Antennas and Propagation, EUCAP 2011 |
| Place of Publication | Piscataway, NJ |
| Publisher | Institute of Electrical and Electronics Engineers (IEEE) |
| Pages | 332-334 |
| Number of pages | 3 |
| ISBN (Electronic) | 9788882020743 |
| ISBN (Print) | 9781457702501 |
| Publication status | Published - 2011 |
| Event | 5th European Conference on Antennas and Propagation, EUCAP 2011 - Rome, Italy Duration: 10 Apr 2011 → 15 Apr 2011 |
Other
| Other | 5th European Conference on Antennas and Propagation, EUCAP 2011 |
|---|---|
| Country/Territory | Italy |
| City | Rome |
| Period | 10/04/11 → 15/04/11 |
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