Suppression and controlling of higher order modes in microstrip antenna with composite resonator

Suppression of higher order harmonic modes of the resonating frequency in a microstrip antenna has been proposed in the paper. Controlling harmonics in the microstrip antenna has been implemented by integrating composite resonators at the microstrip feed line which resulted in elimination of higher order modes occurring between the fundamental resonating frequency and the second harmonics of the microstrip antenna. The integration of the composite resonator in the microstrip feed line to suppress and control the higher order modes is the prime novelty of the paper.