Reconfigurable Substrate Integrated Waveguide

摘要

In this paper, a new substrate integrated waveguide (SIW), which is called reconfigurable substrate integrated waveguide (RCSIW) is proposed. RCSIW is derived from SIW and tunable technology which is widely used in microwave system. It is realized by replacing the side-wall metal posts of SIW with several grounded varactors which are employed to make the SIW tunable. The cutoff frequency and propagation constant can be reconfigurable by controlling these varactors. A RCSIW is designed to test these properties with the input and output of microstrip line. Ansoft HFSS was used to get the characteristics of RCSIW. The results show the reconfiguration of RCSIW.