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should be times This paper includes the simulation and design parameter microstrip E-shaped patch antenna, demonstrating different operating frequencies. In this study three unequal resonance arms are fed by probe feed to the folded patch in order to increase the impedance bandwidth. The miniaturisation of the size of patch is done by the application of shorting pins . The performance of broadening the impedance bandwidth is explored by investigating the behavior of surface currents in patch. The tuning resonance ability of antenna is present within the impedance bandwidth by varying the length of unequal resonance arms. For ultra-wideband applications the measured -10 dB impedance bandwidth of fabricated antenna is 76.18% from 3.34 to 7.45 GHz. The size of the antenna is 0.379λL × 0.145λL × 0.078 λL, where λL is wavelength at the lower frequency of measured operating bandwidth in the free space. It is designed by air substrate which has a dielectric constant of 1.0006. In addition to this, parametric studies are done by investigating the effect of different key parameters on obtaining an optimal design of the proposed antenna design.

Miniaturised Asymmetrical E-Shaped Patch Antenna With Circular Polarisation