A time-domain analysis of a wide-band circularly-polarized crossed-slot antenna

A dual feed crossed-slot antenna is presented. The antenna is analyzed using a time-domain method of moments approach. The technique is capable of analyzing the antenna characteristics over a wide-band of frequency in one application. Here, by using dual-feed, circular-polarization and a bandwidth of about 60 percent is achieved for VSWR=2. Theoretical and experimental results are in good agreement with each other and show that the antenna is circularly polarized over a wide band of frequency.