Design of Reconfigurable Crossovers

This talk will present our recent work on reconfigurable crossovers for applications in wideband reconfigurable radio systems. The design of microstrip and half-mode substrate integrated waveguide (HMSIW) reconfigurable crossovers is shown. The microstrip crossover is tuned from 1.29 to 2.06 GHz. Its size is reduced by 92% compared with the conventional two-section branch-line crossover. The measured HMSIW crossover is tuned from 2.2 to 5.0 GHz.