Title :
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
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);
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2014.2316498
