Improvements of the Bandwidth and Radiation Characteristics of a 5G Mobile Communications Microstrip Antenna with a Novel Wedge Shaped Substrate Design
Mouhamad S Abou Chahine1, Mohamad Arnaout2, Fatma Tangour3, Mohamad-Youssef Abu Shahine4
1Mouhamad S Abou Chahine, LR2E Laboratory, ECAM-EPMI School of Engineering, Cergy, France.
2Mohamad Arnaout, Department of Electrical and Electronics Engineering, International University of Beirut, Beirut, Lebanon.
3Fatma Tangour, LR2E Laboratory, ECAM-EPMI School of Engineering, Cergy, France.
4Mohamad-Youssef Abu Shahine, Department of Electrical and Electronics Engineering, International University of Beirut, Beirut, Lebanon.
Manuscript received on 06 June 2024 | Revised Manuscript received on 17 June 2024 | Manuscript Accepted on 15 July 2024 | Manuscript published on 30 July 2024 | PP: 1-7 | Volume-13 Issue-8, July 2024 | Retrieval Number: 100.1/ijitee.H991613080724 | DOI: 10.35940/ijitee.H9916.13080724
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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: This study proposes a new approach for designing microstrip antennas. The resonant frequency of the proposed antenna is 3.55 GHz, allowing it to operate in the current 5G band (mid-band). The design approach is based on a wedge-shaped substrate with a relatively low thickness at the level of the feed line and a higher thickness at the level of the radiating patch. The FR4 wedge substrate-based design of a 6 mm linear slope enhances the radiation by 9% and the bandwidth by 10.3%, while degrading the return loss by 2.3 dB compared to a standard box substrate-based antenna design of the exact dimensions. To remedy the degradation in terms of S11, the rectangular inset feed line is replaced by a trapezoidal one, which re-enhances the return loss by 3.4 dB, making it better than the original one.
Keywords: Bandwidth, Directivity, Inset Fed, Microstrip Antenna, Wedge Substrate, 5G Mobile Communication.
Scope of the Article: Electrical and Electronics