Curve-fltting Formulas for Fast Determination of Frequency Band-notched Response of UWB Antennas

The aim of this paper is to present approximated formulas that help researchers and UWB antennas designers to fast determine the frequency band-notched response of the nearly quarter/half-wavelength resonators. The formulas are obtained using the curve-fltting technique. The process of flnding the best flt equation with the available results is known as curve fltting. The obtained formulas describe a relationship between the total length of the resonator and the corresponding notched frequency. To verify the proposed methodology, the results obtained from the approximated formulas are compared with the results obtained from the EM simulator based on a prototype design of UWB antenna previously published in literature [3]. The validity of the proposed methodology is verifled and high accuracy results are obtained. REFERENCES