A novel approach to analyzing and designing dielectric‐coated conducting conical antennas with enhanced bandwidth

A rigorous analysis of a dielectric‐coated conical antenna in the presence of a loop is presented in this paper. The poor matching in return loss characteristics of an isolated loop antenna has previously been improved using a conductive cone but with a narrow bandwidth. The current approach achieves 23.10% –10 dB bandwidth, compared to the 6.56% –10 dB bandwidth of a conductive conical antenna, resulting in a 252.13% –10 dB improvement. We analyze the return loss, radiation pattern, and −10 dB bandwidth by varying parameters such as wire diameter, loop radius, loop height from the cone's vertex, and permittivity. Simulated results are compared with computed results, demonstrating the effectiveness of the proposed design.