Implementation of second-order open-loop resonator filter with skew-symmetric input/output coupling structure

• Main Authors: Toh, Y.L., Lin, C.-H., Wong, P.W., Kuo, J.-T.
• Format: Article
• Published: Institute of Electrical and Electronics Engineers Inc. 2018
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-85044760274&doi=10.1109%2fAPMC.2017.8251551&partnerID=40&md5=6499d19091b6d05332489a727818d14d; http://eprints.utp.edu.my/21854/

Second-order open-loop resonator filters are implemented with a skew-symmetric or so-called zero-degree input/output feed structure. The two resonators are coupled through their two end sections, and two transmission zeros are created on both sides of the passband. One more zero is tuned by changing...