[Paper] Dual-polarized Ultra-wideband Antenna with Improved Polarization Purity

抄録

In this paper, a compact UWB dual-polarized antenna with improved co-to-cross-polarization ratio is proposed. This antenna is fed by two orthogonal tapered CPW lines to achieve dual-polarization operation. To enhance the polarization purity and the isolation level between the antenna's ports, a new technique is proposed. The detailed design, as well as the analysis of the obtained results, are presented and discussed, which revealed that the proposed antenna is matched over the entire UWB band with good isolation level between its ports of 20dB and high co-to-cross polarization ratio of more than 20dB. With these features, the proposed antenna is an optimized candidate for media applications.