An experimental study on the resonant frequency of shorted elliptical patch

In this paper, a parametric study on the resonant frequency of shorted elliptical microstrip antenna is presented. A feed probe is located off-axis to generate closely spaced dual resonances for weakly elliptical patch. Using multiple shorting posts, the resonant frequencies of these modes are selectively tuned. Measured results are compared with simulation studies (IE3D) for validation. In the following sections, studies on elliptical patch with multiple shorts located in off-centred positions are presented. An elliptical patch loaded with multiple shorts has not been presented before in literature. The effort has been to study the impact of shorts on the resonant frequencies, thereby generalizing the potentiality of application areas