| dc.description.abstract | This article demonstrates a novel design of a splitbowtie
slotted multi-resonant antenna. The design process
was inspired from previous research of integrating a slot of
a similar profile to the outer boundary of a rectangular
patch antenna. The followed approach presents steps of
proposed antenna evolution, which starts with a bowtieshape
slotted antenna and a coaxial feed to a final design
with a split-bowtie-shaped slot, and a double transmission
line feed. Polar dimensions of the outer boundary (radii and
angle) and slot profiles together with the dimensions of the
feed, whether coaxial or transmission line, were considered
as parameters for optimization. Four antennas were
accordingly studied, which led to the final split-bowtieshaped
antenna IV. These designs were performed utilizing
a special simulation package called “CST Microwave Suite”
that included the optimizer “Genetic Algorithm”. The final
design offers 4 simultaneous bands from a single splitbowtie-
shaped slot; a big advantage of unnecessary
integration of a set of complicated slots on front and ground
planes. Further, the antenna finds applications in mobile
GSM and LTE bands 900/1800 MHz and 2.1 GHz, together
with the satellite communications band 1.25 GHz. It is
therefore simple, non-reconfigurable, easy to fabricate,
designed on a single copper layer, with a low cost FR4
substrate and a plane copper ground. | en_US |
