By Topic

Microstrip dual-mode bandpass filter using CPW-fed triangular loop resonator with controllable attenuation pole

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Xu-Guang Wang ; Dept. of Electron. Eng., Sogang Univ., Seoul, South Korea ; Young-Ho Cho ; Kuk-Jin Chun ; Sang-Won Yun

Novel microstrip dual-mode bandpass filter (BPF) based on the triangular loop resonator with coplanar-waveguide (CPW) feeding structure is presented. The novelty of this design is to use two forms of perturbation, the isosceles triangle shape of microstrip loop resonator and the open stub element, both of which contribute to the coupling between two degenerate modes. By making a various combinations of these two parameters, it is possible to design both narrow and wide band filters and to control the attenuation pole frequency simultaneously. Moreover, the issue of harmonic suppression using dumb-bell-shaped defected ground structure (DGS) cells integrated at each input/output port is also investigated. Experimental results show a good agreement with the simulated ones, which validates the proposed design.

Published in:

Microwave Conference Proceedings (APMC), 2010 Asia-Pacific

Date of Conference:

7-10 Dec. 2010