Analysis of the Resonance Characteristics of the Six-Tooth-Shaped Monopole Microstrip Antenna

The monopole microstrip antenna with the six-tooth-shaped radiator is considered. The influence of the depth of symmetrical rectangular cutouts, the length and width of the radiator on the resonance frequencies of the antenna is studied. The analysis of the changing in the values of the first, second, and third resonance frequencies is made when varying the dimensions of these radiator geometric parameters. Based on the analysis for the studied characteristics, nonlinear regression models are constructed with high accuracy from three radiator parameters (the relative errors of the models are 2.56%, 3.39%, and 0.36% for the first, second, and third resonance frequencies, respectively).