Multi-pole microstrip directional filters for multiplexing applications

Author

Lobato-Morales, Humberto ; Corona-Chávez, Alonso ; Olvera-Cervantes, J. Luis ; Murthy, D.V.B.

Author_Institution

Inst. Nac. de Astrofis., Opt. y Electron., INAOE, Tonantzintla, Spain

fYear

2011

fDate

Feb. 28 2011-March 2 2011

Firstpage

344

Lastpage

349

Abstract

Theory and experiment of multi-pole microstrip directional filters for multiplexing networks are presented in this paper. Conventional microstrip directional filters present only a single-pole filter response. By applying stopband filter theory, two Butterworth microstrip directional filters are designed and tested. The desired multi-pole filter response is achieved by cascading two or more similar single stages connected by immitance inverters. These types of directional filters are ideal candidates for multiplexing applications since they present the characteristics of easy implementation and the capacity of a modular concept. Moreover, a flat response is obtained along the passband due to the multi-pole filter behavior.

Keywords

Butterworth filters; band-stop filters; multiplexing; Butterworth microstrip directional filters; immitance inverters; multi-pole microstrip directional filters; multiplexing applications; multiplexing networks; single-pole filter response; stopband filter theory; Band pass filters; Bandwidth; Filtering theory; Microstrip filters; Microwave filters; Multiplexing; Resonator filters;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Communications and Computers (CONIELECOMP), 2011 21st International Conference on

Conference_Location

San Andres Cholula

Print_ISBN

978-1-4244-9558-0

Type

conf

DOI

10.1109/CONIELECOMP.2011.5749360

Filename

5749360