Title :
Application of anisotropic EBG for suppressing common-mode resonances in CPW-to-CPS transitions
Author :
Lok, L.B. ; Robertson, I.D. ; Chongcheawchamnan, M.
Author_Institution :
Sch. of Electron. & Electr. Eng., Univ. of Leeds, Leeds
Abstract :
The phenomenon of common-mode radiation limits the in-band performance of balanced transmission lines such as the coplanar strip (CPS). When such transmission lines are measured single-endedly, by connecting them between practical baluns/transitions, resonances in the frequency response are observed owing to common-mode propagation. It is proposed, and demonstrated for the first time, that an electromagnetic-bandgap ground (EBG) method can help to suppress the unwanted propagation of common-modes along balanced transmission lines.
Keywords :
coplanar transmission lines; coplanar waveguides; photonic band gap; strip line transitions; CPW-to-CPS transitions; anisotropic EBG; balanced transmission lines; common-mode resonance suppression; coplanar strip; electromagnetic-bandgap ground method;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20080224