A cylindrical monopole antenna with a higher order mode ring patch for wideband applications

摘要

A cylindrical monopole antenna with a higher order mode ring patch for wideband applications is proposed. To accomplish wideband characteristic, a stepped cylindrical monopole and a TM41 higher order mode ring patch with four shorting pins are adopted. The proposed antenna has conical radiation pattern with wide 10-dB return loss bandwidth of 9.45 GHz (2 GHz-11.45 GHz). It can cover various wireless services such as WiBro (2.3 GHz-2.39 GHz), WLAN (2.4 GHz-2.484 GHz, 5.15 GHz-5.35 GHz, 5.725 GHz-5.875 GHz), DMB (2.63 GHz-2.655 GHz), and UWB (3.1 GHz-10.6 GHz).