COMPACT ULTRA-WIDEBAND PLANAR TAPERED SLOT ANTENNA FOR USE IN A MICROWAVE IMAGING SYSTEM

摘要

The design of an ultra-wideband planar tapered slot antenna for use in a circular cylindrical microwave imaging system is presented. The antenna was designed assuming high dielectric substrate material Rogers RT6010LM to achieve its compact size. The developed antenna element (50 × 50 mm{sup}2) features a 10-dB return loss bandwidth from 2.75 GHz to more than 11 GHz The gain of the antenna is between 3.5 and 9.4 dBi over the 3-10 GHz band. The experimental tests showed that the manufactured antenna element supports transmission of narrow pulses with negligible distortions, as required in the microwave imaging system.