| Autor: |
Taher, Nihade, Touhami, Naima Amar, Zakriti, Alia, Rahmani, Faouzi, Elftouh, Hanae |
| Předmět: |
|
| Zdroj: |
International Journal of Microwave & Optical Technology; Sep2021, Vol. 16 Issue 5, p470-478, 9p |
| Abstrakt: |
In this manuscript, a practical coplanar waveguide (CPW) fed ultra-wideband (UWB) antenna, with a capability of variable rejection frequency bands is designed, analyzed, and validated by simulation and experimental measures. This work attends to achieve a reconfigurable frequency notched at Worldwide Interoperability for Microwave Access (WIMAX) ranging from 3.3 to 3.7 GHz, Wireless Local Area Network (WLAN) from 5.15 to 5.825 GHz and Satellite communication from 7.42 to 7.78 GHz. The overall dimensions of the antenna occupy a tiny size of just 20 x 20 mm2 realized by using an FR4 substrate which characterizes by the dielectric constant of 4.3 and a thickness of 1.6 mm. This structure can provide a reconfigurable band-notch characteristic by adding an L-shaped slot with 2 metallic strips to the structure of patch antenna in order to filter out undesirable narrowband signals of which frequencies overlap with those of the UWB bands. Switching on or off the metallic strips enable or disable the bands notched and thus the reconfigurability is introduced. The offered antenna operates at a frequency range from 3.1 GHz to over 18.9 GHz with voltage standing wave ratio characteristic (VSWR) <2, except the notched bands VSWR > 2. Simulation and measured results approve a good agreement. Current distribution, efficiency and radiation pattern characteristics of the antenna are also examined. The presented work offers a perfect combination of miniature size, wide operational region, multimode operation, simple geometrical configuration, and good radiation patterns. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
