SUBSTRATE INTEGRATED WAVEGUIDE BAND-PASS FILTER FED BY A NOVEL BROADBAND TRANSITION TO CPW

Abstract

The paper presents a band-pass filter (BPF) intended for substrate integrated waveguide (SIW) applications, supplied with a novel broadband transition from SIW to miniature coaxial connectors through an intermediate coplanar(CPW) transmission line. The band-pass filter uses inductive diaphragms defined by rows of metal plated via holes of equal diameters. Simulated characteristics are in excellent agreement with experimental results, although BPF simulations were performed with standard waveguide ports while the manufactured component is provided with the novel CPW transition on both ports.

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