Abstract
In this article, we present a novel generic reflectionless filter topology that can produce an arbitrary predefined transmission response while having the perfect impedance matching at both ports. A detailed procedure for synthesizing reflectionless filters using our topology is also given in this article. One of the unique features of our reflectionless filter topology is that the even- and odd-mode half circuits are not correlated with each other, which makes the filter synthesis straightforward. Hence, the synthesis procedure does not necessitate using either an optimization technique or a numerical method. This article also presents a methodology for transforming a generic topology into a practical one with a reduced number of elements. The presented filter topology and design parameters have been verified by designing lowpass and bandpass filters.
| Original language | English |
|---|---|
| Article number | 9025777 |
| Pages (from-to) | 2300-2307 |
| Number of pages | 8 |
| Journal | IEEE Transactions on Microwave Theory and Techniques |
| Volume | 68 |
| Issue number | 6 |
| DOIs | |
| Publication status | Published - 2020 Jun |
Bibliographical note
Funding Information:Manuscript received November 7, 2019; revised January 3, 2020; accepted January 15, 2020. Date of publication March 5, 2020; date of current version June 3, 2020. This work was supported by the National Research Foundation of Korea (NRF) through the Korea Government (MSIT) under Grant NRF-2018R1A2B6006095. (Corresponding author: Juseop Lee.) Jongheun Lee, Seunggoo Nam, and Juseop Lee are with the Department of Computer and Communications Engineering, Korea University, Seoul 02841, South Korea (email: juseoplee@gmail.com).
Publisher Copyright:
© 1963-2012 IEEE.
Keywords
- Arbitrary transmission response
- perfect impedance matching
- symmetric reflectionless filter
ASJC Scopus subject areas
- Radiation
- Condensed Matter Physics
- Electrical and Electronic Engineering