Improved bandwidth and F/B ratio of a CPW-fed planar monopole antenna

A directional planar monopole antenna is described. The antenna comprises of a circular monopole, coplanar waveguide (CPW) feed line and a ground plane. To achieve unidirectional radiation, a stub is also attached to on the ground plane to increase the lower end impedance bandwidth and also increase...

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Detalles Bibliográficos
Autores principales: Ellis, M.S., Ahmed, A.-R., Kponyo, J.J., Gyasi, K.O., Kwakye, K.S.O., Ameyaw, S.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2022
Materias:
Research Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9379583/
https://www.ncbi.nlm.nih.gov/pubmed/35982842
http://dx.doi.org/10.1016/j.heliyon.2022.e10037
Descripción
Sumario:A directional planar monopole antenna is described. The antenna comprises of a circular monopole, coplanar waveguide (CPW) feed line and a ground plane. To achieve unidirectional radiation, a stub is also attached to on the ground plane to increase the lower end impedance bandwidth and also increase the Front-to-Back ratio (F/B). The proposed antenna is etched on a 50 × 50 mm(2) FR4 substrate. Simulated and experimental results reveal that the proposed antenna can achieve an impedance bandwidth from 2.3 – 10.5 GHz for S(11) < −10 dB, and unidirectional radiation patterns with high gain and high efficiency.

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