The size and shape of the ground plane affects the monopole
antenna’s performance [5]. However, in practice the shape of
the monopole has more a dominant effect. In [6], the author
presented a printed triangular monopole which had a bandwidth
of 32.5%. In [7], the authors analyzed the performance of a
rectangular monopole by changing the size of a rectangular
monopole and its distance above the ground plane. Therefore,
adjusting the shape of a monopole is very important technique to
achieve the desired results.