Affiliations: [a] Centre for Space Science (ANGKASA), Universiti Kebangsaan Malaysia, Selangor, Malaysia | [b] Department of Electrical, Electronic and Systems Engineering, Universiti Kebangsaan Malaysia, Selangor, Malaysia | [c] Center for Artificial Intelligence Technology, Universiti Kebangsaan Malaysia, Selangor, Malaysia
Correspondence:
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Corresponding author: M.M. Islam, Centre for Space Science (ANGKASA), Universiti Kebangsaan Malaysia, 43600 UKM, Bangi, Selangor, Malaysia. E-mail:[email protected]
Abstract: In this paper, a disc-shaped monopole antenna has been
investigated for super-wideband applications with a structure of parasitic
element. The proposed SWB antenna consists of disc-shaped patch and a
partial ground plane with a structure of parasitic element. The parasitic
element consists of 4 rectangular embedded slots on the ground plane. This
parasitic element on the ground plane leads the UWB frequency band into the
SWB frequency band. This proposed SWB antenna is fed by a microstrip line
and is printed on low dielectric FR4 material of 1.6 mm thickness. All the
simulations are performed using commercially available, finite element
method (FEM) based Ansoft high-frequency structure simulator (HFSS) software
and CST Microwave Studio. Measured results exhibit that the proposed
disc-shaped antenna shows a wide bandwidth which covers from 2.90 GHz to
more than 20 GHz, with a compact dimension of 25 mm × 33 mm for VSWR
< 2, observing a SWB frequency. A good combination is noticed between
simulation and measurement. The simple construction, sharply, surface
current flow, much impedance bandwidth, nearly omnidirectional radiation
patterns, stable peak gain (3.20-6.22 dBi) and a considerable bandwidth
dimension ratio (≥ 2062. 22) are a good deal sounder than the existing
super wideband antennas which make it appropriate for many wireless
communication systems such as L, C, X, UWB, Ku, and SWB bands.
