Rather than using the fictional Dorothy device to measure these tornadoes from the inside, astronomers used the sensitive, ...

This FAQ will look at the Butler matrix, a widely used passive technique for implanting and ESA, which is not well known.

Abstract: This letter presents a compact dual-band dual circularly polarized shared-aperture phased array antenna for K/Ka-band satellite applications. The K- and Ka-band antennas are stacked ...

Abstract: A broadband dual-polarized meta-dielectric resonator antenna (MDRA) array with high isolation is presented in this letter. The MDRA consists of the 4×4 meta-dielectric resonator (MDR) ...