A Novel Ultra-Miniature 90 Degrees Metamaterial Phase Shifter For Beamforming Applications

In radiofrequency (RF) applications, reducing the structure size of the phase shifter (PS) other remains a key challenge. In this article, a new compact-wilds-phase shifter for reducing the size area of the conventional design has been introduced. Unlike, conventional shifter, the proposed one leverages metamaterial for size reduction by using complementary split ring resonator. It operates at central frequency 2.4 GHz. The experimental results showed that the proposed design can significantly reduce 66% from the size of conventional structure.