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Design of compact UWB monopole patch antenna with octagonal shape for C-band, Wi-MAX, and WLAN applications

F. ABAYAJE1, A. A. ALRAWACHY1, Y. S. MEZAAL2,3,*

Affiliation

  1. Department of Software, College of Computer Science and Mathematics, University of Mosul, Iraq
  2. Department of Mobile Communications and Computing Engineering, University of Information Technology and Communications, Baghdad, Iraq
  3. Visiting Researcher, Al-Farahidi University, Baghdad, Iraq

Abstract

This study presents a new compact UWB monopole antenna designed for 4G and 5G wireless band communications. The antenna features a partial ground plane and an octagonal radiation patch, which enable two resonances at 2.6 and 5 GHz bands with a bandwidth of S11 < -10 dB ranging from 2 – 6 GHz (4000 MHz). The antenna covers the frequencies of 3.7- 4.2 GHz (C-band), 3.2-3.8 GHz (WiMAX band), and 5.15-5.85 GHz (WLAN band), making it suitable for various applications including wireless medical applications. Fabricated on an FR4 substrate with a dielectric constant of ɛr =4.4, loss tangent (tan δ)= 0.015, and thickness of 1.6 mm, the proposed antenna exhibits bi-directional and omnidirectional radiation patterns in the E and H-planes. Additionally, it offers advantages in terms of wireless baseband transmission at high data rates and in the near-field region. Compared to other UWB antennas in the literature, the presented antenna has very compact size of only 30 × 20 × 1.6 mm3 , making it easily integrable into various wireless medical terminals. The experimental results demonstrate the effectiveness and performance of the proposed antenna design.

Keywords

Monopole antenna, FR4 material, WiMAX, WLAN, C-band, UWB antenna, Microstrip patch antenna.

Citation

F. ABAYAJE, A. A. ALRAWACHY, Y. S. MEZAAL, Design of compact UWB monopole patch antenna with octagonal shape for C-band, Wi-MAX, and WLAN applications, Optoelectronics and Advanced Materials - Rapid Communications, 17, 7-8, July-August 2023, pp.323-328 (2023).

Submitted at: Aug. 14, 2022

Accepted at: Aug. 7, 2023