| Abstrakt: |
A novel multiband patch antenna with a modified hexagonal structure is introduced in this paper to target the most required frequencies used for radio frequency energy harvesting applications, including WLAN-2.4G, WLAN-5G, WLAN-6G (Wireless Local Area Network), Mobile LTE (Long Term Evolution), and WIMAX (Worldwide Interoperability for Microwave Access). A novel fractal shape is designed and combined with a conventional hexagonal geometrical shape in order to implement the front patch of the antenna. The proposed antenna is simulated with CST Studio Suite software and fabricated on FR-4 substrate. Different antenna stages with parametric study and optimization were implemented to get the best performance from the proposed antenna. The proposed multiband antenna (Antenna-1) supports four resonate frequencies (2.4045 GHz, 3.568 GHz, 4.6405 GHz, 5.869 GHz) and has a high gain of (3.2 dBi) at the frequency of 2.4045 GHz. The proposed antenna covers all of the WLAN-2.4G (IEEE 802.11) frequency band and achieved a maximum bandwidth of (0.5101 GHz) at a frequency of 5.869 GHz, making it a suitable antenna for radio frequency energy harvesting applications. The measured results have shown good agreement with the simulation results. Furthermore, an evaluation of this proposed work in comparison to other published works highlighted the advantages in terms of antenna thickness, size, gain, and the number of supported operating frequencies. Also, the comparison showed that the FR-4 substrate used to implement this proposed work is much cheaper than other substrate types used to implement other published works. [ABSTRACT FROM AUTHOR] |
