Comparative Analysis in Radar Cross Section of Low Profile and Conventionally Sized UHF SATCOM Antenna

In this paper, we show and compare the results in radar cross-section (RCS) between metamaterial-based $\lambda_{\text{low}}/40$ low profile tactical UHF SATCOM antenna, operates in the band of 245 MHz - 310 MHz, and conventionally $\lambda/4$ sized aperture. The monostatic RCS results of both differently sized apertures have been examined in the frequency range of the S-band, under both $\theta$ and $\varphi$-polarized plane wave incidence angle up to 60°. A reduction of one-tenth in antenna profile yields a considerable decrease in RCS.