Cart (Loading....) | Create Account
Close category search window

A New Class of Pseudoelliptic Waveguide Filters Using Dual-Post 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
$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

2 Author(s)
Tomassoni, C. ; Dept. of Electron. & Inf. Eng. (DIEI), Univ. of Perugia, Perugia, Italy ; Sorrentino, R.

A new class of inline pseudoelliptic waveguide filters is presented in this paper. The proposed structure is based on a novel resonator, namely, the dual-post resonator, consisting of a pair of antipodal partial-height posts. The odd and even symmetry modes of the dual-post resonator are exploited as the resonant mode and nonresonating mode, respectively. The nonresonating mode generates a direct input-to-output coupling, thus providing a transmission zero that can be located either below or above the pole of the resonant mode. The coupling between the resonant mode and the source (or load), as well as the input-to-output coupling, can be controlled by properly selecting the height and position of each post of the dual-post resonator, no additional waveguide discontinuity being needed. N th-order filtering functions with a number of transmission zeros up to the number of poles can be realized by cascading N dual-post resonators. With respect to the conventional inline waveguide filter with inductive obstacles, the dual-post filter is easier to tune, shorter, and more selective, such advantages being paid by a somewhat lower Q factor. The design of fourth- and sixth-order dual-post filters is presented; the experimental results demonstrate the feasibility of the approach proposed.

Published in:

Microwave Theory and Techniques, IEEE Transactions on  (Volume:61 ,  Issue: 6 )

Date of Publication:

June 2013

Need Help?

IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.