TY - GEN
T1 - Absorptive bandpass filter with a pair of transmission zeros
AU - Jeong, Seong Wook
AU - Lee, Juseop
N1 - Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea goverment (MSIT) (No. NRF-2018R1A2B6006095).
Publisher Copyright:
© 2020 IEEE.
PY - 2020/6
Y1 - 2020/6
N2 - In this paper, the design approach for an absorptive bandpass filter with a pair of transmission zeros is introduced. The design is based on using dangling resonators coupled to the output port. One of the unique features of the proposed design approach is that the resonant frequencies of the dangling resonators determine the locations of the transmission zeros. In addition, the design method allows us to relocate the transmission zeros without degrading a reflectionless response at the input port. For verification, we have designed three third-order microstrip line filters centered at 3 GHz having 10 % bandwidth. The filters have been designed to have one transmission zero in the lower stopband and one in the upper stopband. For demonstrating the relocation facility, the filters have been designed to have different sets of transmission zeros. The filters have been fabricated and measured for verifying the presented design method.
AB - In this paper, the design approach for an absorptive bandpass filter with a pair of transmission zeros is introduced. The design is based on using dangling resonators coupled to the output port. One of the unique features of the proposed design approach is that the resonant frequencies of the dangling resonators determine the locations of the transmission zeros. In addition, the design method allows us to relocate the transmission zeros without degrading a reflectionless response at the input port. For verification, we have designed three third-order microstrip line filters centered at 3 GHz having 10 % bandwidth. The filters have been designed to have one transmission zero in the lower stopband and one in the upper stopband. For demonstrating the relocation facility, the filters have been designed to have different sets of transmission zeros. The filters have been fabricated and measured for verifying the presented design method.
KW - Absorptive filter
KW - Dangling resonator
KW - Microstrip line filter
KW - Transmission zero
UR - http://www.scopus.com/inward/record.url?scp=85091343095&partnerID=8YFLogxK
U2 - 10.1109/NEWCAS49341.2020.9159775
DO - 10.1109/NEWCAS49341.2020.9159775
M3 - Conference contribution
AN - SCOPUS:85091343095
T3 - NEWCAS 2020 - 18th IEEE International New Circuits and Systems Conference, Proceedings
SP - 102
EP - 105
BT - NEWCAS 2020 - 18th IEEE International New Circuits and Systems Conference, Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 18th IEEE International New Circuits and Systems Conference, NEWCAS 2020
Y2 - 16 June 2020 through 19 June 2020
ER -