A Compact Wideband Circularly Polarized Planar Monopole Antenna with Axial Ratio Bandwidth Entirely Encompassing the Antenna Bandwidth
| Autor: | Falih M. Alnahwi, Yasir I. A. Al-Yasir, Nazar T. Ali, Ibrahim Gharbia, Chan Hwang See, Raed A. Abd-Alhameed |
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| Jazyk: | angličtina |
| Rok vydání: | 2022 |
| Předmět: |
General Computer Science
Sensors Culture and Communities Internet of Things General Engineering General Materials Science Acoustics Electrical and Electronic Engineering Optimisation and learning Axial Ratio circular polarization planar antenna wideband Smart cities Engineering Research Group AI and Technologies |
| Popis: | The antenna presented in this study is a compact wideband monopole with wideband circular polarization that can be used across the whole antenna bandwidth. A rectangular C-shaped patch is partially covered by a ground plane in the proposed planar monopole antenna. Inserting a rectangular stub to the ground plane, etching a slit at the antenna patch, and adding a semicircular stub at the top of the antenna feed line increase the antenna impedance bandwidth (BW) and axial ratio bandwidth (ARBW). An FR4 substrate with overall dimensions of 25 mm×25 mm×1.6 mm is used to create the antenna. The antenna's observed impedance BW is 70% (4.55 GHz in the 4.3-8.85 GHz band), while the measured broadside ARBW is improved to a value of 82.2 percent (5.3 GHz along the range 3.8-9.1 GHz). The impedance BW is perfectly covered by the ARBW; hence the antenna can be considered circularly polarized throughout its operational spectrum. Within the antenna BW, the measured gain is greater than 1.5 dB. |
| Databáze: | OpenAIRE |
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