Abstract
In this article, a novel instruments, scientific, measurements (ISM) band antenna which includes NiTi shape memory alloy is proposed and its return loss, impedance bandwidth, and gain performance are analyzed. A NiTi-based U-shape antenna operating at 2.4 GHz having 12.3% bandwidth has been utilized as a reference antenna. The 10-dB return loss bandwidth of the proposed antenna is found to be 12.3%, which covers the recently proposed communication applications. In addition, it has been shown that NiTi antenna improves the radiation pattern. The gain of the NiTi antenna is higher than 6 dBi. An accurate electromagnetic model of the NiTi antenna is developed. The computed and measured results showed good agreement for copper, aluminum, and NiTi antennas. The NiTi-based antenna shows stable gain and radiation patterns over the frequency range of 2-3 GHz.
| Original language | English |
|---|---|
| Pages (from-to) | 2976-2984 |
| Number of pages | 9 |
| Journal | Microwave and Optical Technology Letters |
| Volume | 55 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2013 |
Keywords
- bandwidth improvement
- NiTi
- shape memory alloy
- slot antenna
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering