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A new metallic capped inhomogeneous hybrid hemispherical dielectric resonator antenna has been investigated as an ultra-wideband antenna. The proposed structure offers 170 % bandwidth with an operational bandwidth ranging from 4.7–60 GHz, significantly improving the impedance bandwidth compared to that of available open literature. The designed antenna has been fed by coaxial cable of standard dimensions...
In order to maneuver over the ultra wideband range, several structures have been investigated with increased impedance bandwidth. In this context a three stacked conical ring dielectric resonator antenna has been proposed to operate beyond the ultra wideband range. The proposed antenna offers a fractional bandwidth of 161% with a monopole type radiation pattern. The enhanced bandwidth is due to the...
A small footprint dielectric resonator antenna (DRA) for potential use in biomedical communication is presented. The antenna is designed to operate within the lower European ultrawideband (UWB) frequency band (3.4–5.0 GHz). The selected DRA geometry in combination with a lower permittivity material results in a reduction of antenna size with wide impedance bandwidth. The bandwidth is enhanced by removal...
A novel design of compact dielectric resonator antenna (DRA) dedicated to ultra wideband applications such as Digital Video Broadcasting-Handheld (DVB-H) is presented in this paper. A miniaturization technique has been performed in order to reduce the antenna size. The obtained dimensions of the final design of the DRA are ??0/7 ?? ??0/13 ?? ??0/28 at 466 MHz. Also, measurements are presented to validate...
Microstrip Antennas (MSAs) consist of a metallic radiating patch on one side of thin dielectric substrate and other side is ground plane. Most important advantages of MSAs are low profile, light weight and compatibility with integrated circuit technology. MSAs are used in mobile communication, satellite communication, radar, direct broadcasting, global positioning systems and remote sensing. The major...
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