Non-periodic flipped-SIR EBG for dual-band SSN mitigation in 2-layer PCB
Journal
2018 IEEE Electrical Design of Advanced Packaging and Systems
Date Issued
2018
Author(s)
Abstract
In order to offer simultaneously switching noise (SSN) mitigation for dual WLAN bands in PCB of only two metal layers, this paper proposes a novel flipped stepped-impedance-resonator electromagnetic bandgap (FSIR-EBG) structure with its 2 × 2 modified non-periodic combination. An equivalent circuit model is also developed to investigate the EBG design concept, whose stopband performance is enhanced by the theory of stepped-impedance resonator and the slot resonance. The unit cell of 2 × 2 modified non-periodic EBG combination can suppress SSN of both 2.4-3.1 GHz and 4.5~6 GHz bands with best suppression level up to 30 dB and 50 dB, respectively, and the simulation results agree well with the measurement.
Type
conference paper