Filtering Power Divider with Reflectionless Response and Wide Isolation at Output Ports

Boyoung Lee, Seunggoo Nam, Juseop Lee

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)


In this paper, we present a new filtering power divider structure that has a reflectionless response at the two output ports and excellent isolation performance between the two output ports. Hence, the presented filtering power divider can be employed in, for example, combining two signals in two paths without producing signals reflected back to both paths. For obtaining the aforementioned new features of the presented filtering power divider, we have developed a new isolation network made with a resonator, two resistors, and two inverters. We provide analytic design equations so that time-consuming optimization or parametric study is not required in designing filtering power dividers. For verifying the new divider structure and the design equations, we have designed, fabricated, and measured a second-order microstrip reflectionless filtering power divider.

Original languageEnglish
Article number8712572
Pages (from-to)2684-2692
Number of pages9
JournalIEEE Transactions on Microwave Theory and Techniques
Issue number7
Publication statusPublished - 2019 Jul

Bibliographical note

Funding Information:
Manuscript received August 19, 2018; revised February 1, 2019; accepted March 21, 2019. Date of publication May 10, 2019; date of current version July 1, 2019. This work was supported by the Korea Government (Ministry of Science and ICT) through the National Research Foundation of Korea under Grant NRF-2018R1A2B6006095. (Corresponding author: Juseop Lee.) The authors are with the College of Informatics, Korea University, Seoul 02841, South Korea (e-mail:

Publisher Copyright:
© 1963-2012 IEEE.


  • Filtering power divider
  • high isolation
  • new topology
  • reflectionless

ASJC Scopus subject areas

  • Radiation
  • Condensed Matter Physics
  • Electrical and Electronic Engineering


Dive into the research topics of 'Filtering Power Divider with Reflectionless Response and Wide Isolation at Output Ports'. Together they form a unique fingerprint.

Cite this