TY - JOUR
T1 - Rigorous Design Method for Symmetric Reflectionless Filters with Arbitrary Prescribed Transmission Response
AU - Lee, Jongheun
AU - Lee, Boyoung
AU - Nam, Seunggoo
AU - Lee, Juseop
N1 - 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.
PY - 2020/6
Y1 - 2020/6
N2 - 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.
AB - 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.
KW - Arbitrary transmission response
KW - perfect impedance matching
KW - symmetric reflectionless filter
UR - http://www.scopus.com/inward/record.url?scp=85086236188&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2020.2976967
DO - 10.1109/TMTT.2020.2976967
M3 - Article
AN - SCOPUS:85086236188
VL - 68
SP - 2300
EP - 2307
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
SN - 0018-9480
IS - 6
M1 - 9025777
ER -