Small folded CPW fed slot antennas

Abstract

In this paper the folded slot and shorting pin concepts are combined to create a small, uni-planar radiating solution. It is found that by using a shorting conductor across the aperture of the folded slot we could reduce the number of folds required to achieve a solution with an input impedance of 50 Omega. The size of the shorting conductor directly impacted the number of folds required and thus the overall size of the low profile radiator; the larger the shorting conductor the smaller the number of folds and therefore the smaller the overall size of the antenna. Although a consequence of using this size reduction technique is a reduction in antenna bandwidth and efficiency, this is expected and no different to that observed for any size reduction scheme