Dual-Band A-Sandwich Radome Design for Airborne Applications

A dual-band A-sandwich radome is proposed for airborne applications. Each layer of the radome wall structure is dimensioned in a thickness of 1/12 wavelength corresponding to a selectable design frequency. The 3-D ray-tracing method is applied to numerical analysis of antenna-radome interactions. Results demonstrate the radome feasible for dual-band applications in the ranges of 1.53-1.60 and 6.49-6.75 times of the design frequency, respectively. The design method is proved convenient for designing dual-band radomes with selectable passbands, such as a radome for both X- and Ka-band applications.