In this article, we present a new generic reflectionless filter topology that can be used in designing not only a filter having zero reflection at one port but also a filter having zero reflection at both ports. Detailed mathematical analysis of the presented reflectionless filter topology is provided. The three unique features, which will be described throughout this article, allow us to straightforwardly synthesize a reflectionless filter with ease. Hence, the synthesis procedure does not necessitate using either an optimization technique or a numerical method. This article also presents a rigorous design methodology involving closed-form design formulas for distributed-element filters using the proposed topology. The presented filter topology and design methodology have been verified by designing and fabricating bandpass filters.
|Number of pages||12|
|Journal||IEEE Transactions on Microwave Theory and Techniques|
|Publication status||Published - 2021 Jun|
Bibliographical noteFunding Information:
Manuscript received November 25, 2020; revised January 8, 2021; accepted March 11, 2021. Date of publication April 9, 2021; date of current version June 3, 2021. This work was supported by the National Research Foundation of Korea (NRF) under Grant NRF-2018R1A2B6006095. (Corresponding author: Juseop Lee.) The authors are with the Department of Computer and Radio Communications Engineering, Korea University, Seoul 02841, South Korea (e-mail: firstname.lastname@example.org).
© 1963-2012 IEEE.
- Absorptive filter
- reflectionless filter
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering