Chen P.-CYang K.-YLin Y.-HWang W.-SWu T.-YRUEY-BEEI WU2021-09-022021-09-02201721563950https://www.scopus.com/inward/record.uri?eid=2-s2.0-85028449344&doi=10.1109%2fTCPMT.2017.2734846&partnerID=40&md5=aec7d49b021b262af51ca80eb1f34081https://scholars.lib.ntu.edu.tw/handle/123456789/581090This paper proposes a novel two-cap wideband filter that suppresses the high-frequency noise in a power trace routing. By combining electromagnetic bandgap (EBG) theory and decoupling capacitors, the EBG propagation characteristics are studied and a systematic design procedure is proposed. Advanced Design System (ADS) and gigahertz transverse electromagnetic (GTEM) cell measurement are used to validate the accuracy of the proposed analysis and the validity of the design. It is found that the filter gives a 67% stopband with 20-dB suppression, using only two capacitors that are spaced one-twentieth of a wavelength apart. ? 2011-2012 IEEE.Decoupling capacitor (de-cap); electromagnetic bandgap (EBG); electromagnetic interference (EMI)[SDGs]SDG7Bandpass filters; Capacitors; Dispersion (waves); Electric power transmission; Electromagnetic pulse; Electromagnetic wave interference; Energy gap; Natural frequencies; Periodic structures; Signal interference; Advanced design system; Decoupling capacitor; Electromagnetic band gaps; Giga-hertz Transverse ElectroMagnetic (GTEM) cell; High-frequency noise; Noise suppression; Propagation characteristics; Systematic designs; Metamaterialsjournal article10.1109/TCPMT.2017.27348462-s2.0-85028449344