TY - GEN
T1 - Coupling matrix sign reversal transformation
AU - Das, Ranjan
AU - Zhang, Qingfeng
AU - Kandwal, Abhishek
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/6/29
Y1 - 2018/6/29
N2 - This paper explores a new transformation of coupling matrix (CM) called sign reversal technique. It is mathematically proved that, sign reversal transformation holds S-parameter invariant property by preserving eigen values and eigen vectors of original CM. It is also showed that, sign reversal operation offer another type of similarity transformation. Proposed sign reversal technique is independent of filter order and coupling topology. Also, this technique is equally applicable to resonating as well as non-resonating nodes which provide more degree of freedom for design. Two different lossless filter examples are examined to verify this technique. Finally, a 4th-order inline bandpass filter is designed and simulated to illustrate sign reversal technique in bandpass frequency domain.
AB - This paper explores a new transformation of coupling matrix (CM) called sign reversal technique. It is mathematically proved that, sign reversal transformation holds S-parameter invariant property by preserving eigen values and eigen vectors of original CM. It is also showed that, sign reversal operation offer another type of similarity transformation. Proposed sign reversal technique is independent of filter order and coupling topology. Also, this technique is equally applicable to resonating as well as non-resonating nodes which provide more degree of freedom for design. Two different lossless filter examples are examined to verify this technique. Finally, a 4th-order inline bandpass filter is designed and simulated to illustrate sign reversal technique in bandpass frequency domain.
KW - coupling matrix (CM)
KW - eigen value
KW - lossless filter
KW - S-parameter
KW - Similar matrices
KW - similarity transformation
UR - http://www.scopus.com/inward/record.url?scp=85050405166&partnerID=8YFLogxK
U2 - 10.1109/IEEE-IWS.2018.8400848
DO - 10.1109/IEEE-IWS.2018.8400848
M3 - Conference Proceeding
AN - SCOPUS:85050405166
T3 - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings
SP - 1
EP - 3
BT - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018 - Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2018 IEEE MTT-S International Wireless Symposium, IWS 2018
Y2 - 6 May 2018 through 9 May 2018
ER -