By Topic

Wide-Stopband Bandpass Filters Using Asymmetric Stepped-Impedance Resonators

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
$33 $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

2 Author(s)
Chan Ho Kim ; Dept. of Electr. & Comput. Eng., Univ. of California, Davis, Davis, CA, USA ; Kai Chang

This letter presents novel bandpass filters (BPFs) with a wide stopband using asymmetric stepped-impedance resonators (SIRs). An uncoupled section located within conventional coupled lines functions as a means of achieving additional transmission zeros between each existing zeros, created by the conventional coupled lines. Designing two types of resonators, which have the same fundamental resonant frequency f1 with different spurious harmonic resonances, results in extending the stopband bandwidth with the better suppression level. Embedded inserted feeder structure is also designed to create supplementary transmission zeros at about 9.0 and 13.0 GHz. Measured results of the proposed filter show the suppression level of -23.7 dB up to 10.6f1 with the FBW of 8.9%.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:23 ,  Issue: 2 )