This paper presents the design of a low-pass filters based on substrate integrated coaxial line (SICL). The SICL is a modified version of the more popular substrate integrated waveguide that allows the propagation of the TEM mode. This feature leads to reduced size and no modal dispersion, while preserving the electromagnetic shielding. A low-pass filter was designed starting from a quasi-lumped design approach, and it was subsequently improved, reducing its footprint by meander lines and incorporating transmission zeros by adding open stubs. The design procedure of the different topologies and experimental verification of the low-pass SICL filter are reported in the paper.
A Miniaturized Low-Pass Filter with Transmission Zeroes in SICL Technology
Delmonte N.;Silvestri L.;Tomassoni C.;Perregrini L.;Bozzi M.
2025-01-01
Abstract
This paper presents the design of a low-pass filters based on substrate integrated coaxial line (SICL). The SICL is a modified version of the more popular substrate integrated waveguide that allows the propagation of the TEM mode. This feature leads to reduced size and no modal dispersion, while preserving the electromagnetic shielding. A low-pass filter was designed starting from a quasi-lumped design approach, and it was subsequently improved, reducing its footprint by meander lines and incorporating transmission zeros by adding open stubs. The design procedure of the different topologies and experimental verification of the low-pass SICL filter are reported in the paper.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
