Electronically reconfigurable patches for transmit-array structures at 12GHz

The aim of the paper below is to develop certain active radiating elements for reconfigurable patch arrays. In literature it could be found different possibilities to obtain feasible reconfigurable antennas, whether placing the active circuitry in the transmission lines or directly over the patch. In this paper, the second option is chosen and active radiating elements are analyzed, designed, simulated and prototyped. Finally, measurements of these prototypes are shown. This work is part of a more complete and ambitious project to design and prototype reconfigurable transmit-array structures for microwave applications.