Band-Notched Antipodal Vivaldi Antenna using Edge-Located Vias Mushroom EBG Structure for Ultra Wideband Applications
Saidu A. Adamu1, Thelaha Masri2, Wan Azlan W. Z. Abidin3,Kismet H. Ping4
1Saidu A. Adamu*, Department of Electronics Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Malaysia.
2Thelaha Hj Masri, Department of Electronics Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Malaysia.
3Wan Azlan W. Z. Abidin, Department of Electronics Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Malaysia.
4Kismet H. Ping, Department of Electronics Engineering, Faculty of Engineering, Universiti Malaysia Sarawak, Malaysia.
Manuscript received on January 17, 2020. | Revised Manuscript received on January 23, 2020. | Manuscript published on February 10, 2020. | PP: 2455-2459 | Volume-9 Issue-4, February 2020. | Retrieval Number: C8572019320/2020©BEIESP | DOI: 10.35940/ijitee.C8572.029420
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: An Ultra wideband (UWB) Antipodal Vivaldi Antenna operating at 2.78 GHz to more than 12 GHz with dual notch band attributes is designed for application in ultra-wideband. The proposed double-layered antenna is designed on a low cost FR-4 dielectric material with combined thickness of 2.1mm. Two edge-located vias mushroom type EBG metamaterial structures were incorporated within a conventional antipodal Vivaldi antenna (AVA) in between the two substrate layers and below the feeding line, to realize the proposed antenna. Using the band gap property of the EBG structure, two notch bands were created within the ultra wideband frequency range of the antenna for WiMAX IEEE 802.16 application at 3.18 – 3.80 GHz and WLAN IEEE 802.11a application at 5.13 – 5.80 GHz. Simulation results showed a almost stable directional radiation pattern in the entire frequency range except in the two notch bands, having a peak realize gain of 7.69 dBi at 6.5 GHz. Additionally, surface current distribution and far-field radiation patterns are also studied to characterize the achievement of the presented antenna.
Keywords: Antipodal Vivaldi Antenna, Edge Located vias, Ultra Wideband, Slot Edge Corrugation, Reflection Coefficient.
Scope of the Article: Smart Antenna