A Microstrip Stepped-Impedance Resonator Bandpass Filter Based on Inductive Coupling

• DOI: 10.1515/freq-2018-0112
• Publication Date: 2018-11-17T11:42:56Z
• Authors: X. C. Zhang; X. Chen; L. Sun; Y. S. Huang; X. F. Gao
• Keywords: Helical resonator; Spurious relationship

Abstract A simple and successful design for a microstrip stepped-impedance resonator (SIR) bandpass filter (BPF) based on inductive coupling is presented. It well known that SIRs are used to shift or suppress the higher order frequencies. In achieve compact circuit size, perceptual utilized. Based theoretical analysis, this can spurious frequency 3.8 f 0 . The experimental results show good agreement with theory simulations.