Planar Reconfigurable Plasma Leaky-Wave Antenna with Electronic Beam-Scanning for MIMO Applications

Abstract A planar leaky-wave antenna (LWA) based on the reconfigurable conductivity of plasma is designed for MIMO applications with electronic beam scanning capability. 112-semi-elliptical ionized gratings are encased by plexiglass grating filled a noble gas. These printed metal-backed dielectric substrate total dimensions $$ L\times {W}_{s}\times h=241\times 262.5\times 2.67\, {\mathrm{mm}}^{3}$$ L × W s h = 241 262.5 2.67 mm 3 . coplanar fed Yagi-Uda like dipole integrated LWA to launch required excitation waves. The radiated direction, gain, and side lobe level adjusted controlling periodicity ionized/non-ionized gratings. compact in construction has high gain. fan-shaped obtained from semi-elliptical arrays different aspect ratios. effect ON/OFF configurations radiation characteristics at fixed frequency investigated. At 10.1 GHz, electronically scanned − 28 34° using periodicities gain 20 dBi efficiency 74%. mutual coupling between two elements investigated reduced 35 dB. Four arranged structure data rate application. envelope correlation coefficient 0.0002 diversity 9.9998 dB achieved.