Design of Compact Wideband Bandpass Filters Based on Multiconductor Transmission Lines With Interconnected Alternate Lines

Author

Sanchez-Martinez, Juan Jose ; Marquez-Segura, Enrique ; Lucyszyn, Stepan

Author_Institution

Dept. de Ing. de Comun., Univ. de Malaga, Malaga, Spain

Volume

24

Issue

7

fYear

2014

fDate

Jul-14

Firstpage

454

Lastpage

456

Abstract

A new compact wideband bandpass filter consists of one series and one shunt multiconductor transmission-line (MTL) structure with short-circuited alternate lines is proposed. Based on this topology, a three-pole filter with two transmission zeros at the edges of the desired passband, generated by the shunt MTL, and with a wide stopband can be easily designed. Therefore, a comprehensive study of the filter is carried out and useful closed-form design equations are obtained and assessed by means of measurements. A filter is designed, fabricated and measured for validation and excellent agreement between analytical and measured results is obtained.

Keywords

band-pass filters; multiconductor transmission lines; closed-form design equations; compact wideband bandpass filter; interconnected alternate lines; series MTL structure; short-circuited alternate lines; shunt MTL; shunt multiconductor transmission-line structure; three-pole filter; transmission zeros; Band-pass filters; Couplings; Equations; Filtering theory; Impedance; Wideband; Wireless communication; Bandpass filter (BPF); coupled lines; filters; multiconductor transmission lines (MTLs);

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2014.2316498

Filename

6827241