Improved Doubly Tapered Electromagnetic Periodic Structure (EPS) for Bandstop Filter Applications

Man Long HER  Yu Zhen WANG  Yi Chyun CHIOU  Fan Hsi KUNG  

IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.10   pp.2151-2153
Publication Date: 2003/10/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Microwaves, Millimeter-Waves
doubly tapered electromagnetic periodic structure (DT-EPS),  coplanar waveguide (CPW),  cylindrical coplanar waveguide (CCPW),  

Full Text: PDF(1.2MB)>>
Buy this Article

In this paper, we proposed the doubly tapered electromagnetic periodic structure (DT-EPS) bandstop filters in coplanar waveguide (CPW) and cylindrical coplanar waveguide (CCPW). The DT-EPS bandstop filter not only can effectively improve the stopband rejection but also increase its bandwidth. In addition, this technique can significantly reduce the passband ripples compared with conventional case.