Broadband delay compensation phase shifter using slotted substrate integrated waveguide structure

Summary form only given, as follows. This paper presents a broadband fixed delay compensation phase shifter that makes use of non-radiating longitudinal slots in the broad wall of a substrate integrated waveguide. The design concept is built up on the difference of propagation constants of TE10 mode and quasi-TEM mode, which are the fundamental modes of substrate integrated waveguide and slotted substrate integrated waveguide in our circuit, respectively. The proposed method is then validated by both theory and experiments.