A Novel Reconfigurable Planar Switched-Beam Filtenna with 360-Degree Beam Scanning

This paper presents a novel reconfigurable planar switched-beam Filtenna (SBF). The substrate-integrated cavity (SIC) resonators terminated by antipodal dipoles, deliver the filtering response with a third-degree Chebyshev response. By integrating the PIN diodes, the structure has effectively divided the azimuthal plane into eight sectors, enabling a reconfigurable pattern. The operating frequency of the proposed SBF is 12.7-13.3 GHz with return loss of 20 dB, realized gain of about 5 dBi, and covering beam of 360 degrees. The simulated and synthesized results are compared and shows a good agreement.