On the Synthesis of Filtering Antennas (Invited)

In this paper a cascaded trisection (CT) filtering antenna is introduced. The filtering antenna has a 3
^rd
order filtering response with a lower-band transmission zero (TZ). With this TZ, the selectivity at the lower stopband of the filtering antenna is improved significantly. For verification, the antenna is synthesized and measured. The measured results agree well with the simulation.