Abstract
Planar inverted-F antennas (PIFA) are widely used in wireless hand-held devices due to their small-size, moderate bandwidth and radiation patterns. However, the radiation patterns of such antennas degrade when placed very close to a conductive finite ground plane. In this paper, an engineered magnetic superstrate is introduced to enhance the gain of PIFA antennas. The engineered magnetic superstrate is based on the broad-side coupled split ring resonator (SRR) inclusions which have high real permeability value at the resonance frequency of the antenna. Numerical full-wave simulations are performed to analyze the entire radiating system (antenna with superstrate). By using the magnetic superstrate, a 3.2 dB improvement in the gain of the PIFA antenna working in the UMTS band was achieved. The total height of the proposed superstrate over the antenna is only λ0/14 where λ0 is the free-space wavelength at antenna's resonance frequency. Thus, the antenna structure remains low profile, and is advantageous in cell-phone applications.
| Original language | English |
|---|---|
| Title of host publication | PIERS 2010 Cambridge - Progress in Electromagnetics Research Symposium, Proceedings |
| Pages | 494-497 |
| Number of pages | 4 |
| Publication status | Published - 2010 |
| Event | Progress in Electromagnetics Research Symposium, PIERS 2010 Cambridge - Cambridge, MA, United States Duration: Jul 5 2010 → Jul 8 2010 |
Other
| Other | Progress in Electromagnetics Research Symposium, PIERS 2010 Cambridge |
|---|---|
| Country | United States |
| City | Cambridge, MA |
| Period | 7/5/10 → 7/8/10 |
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ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic, Optical and Magnetic Materials