Side notched two-stage Parany monopole antenna

It is known that Parany and Sierpinski monopoles are resonant, log-periodic and multi-band antennas. In this work, a new multiband antenna is presented, which is a modification of a traditional fractal equilateral Parany monopole. This new antenna is achieved eliminating two side connections between the triangles that shape the traditional two-stage Parany monopole antenna. Then, the resultant two-stage Parany fractal monopole increases its electrical size and one of its bandwidths is widened. Specifically, the new side notched two-stage fractal Parany monopole provides two bandwidths using a 50 Ohm feeding from 0.92 GHz to 1.01 GHz and from 2.26 GHz to 3.37 GHz, for a VSWR <; 2. It also shows an approximate gain of 6 dBi in such bands. Also, the proposed antenna was simulated using an FDTD algorithm. Then, a good agreement between the simulated and measured results was observed.