Design and synthesis of quasi dual-mode, elliptic coaxial filter
This article introduces the design of a novel quasi dual-mode, elliptic coaxial filter. The transfer function is mapped to a Generalized Chebyshev prototype with symmetrically located transmission zeros (TZs) where the coupling values are extracted. Furthermore, the miniaturization is achieved by in...
| Main Authors: | Cheab, S., Wong, P.W. |
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| Format: | Article |
| Institution: | Universiti Teknologi Petronas |
| Record Id / ISBN-0: | utp-eprints.26060 / |
| Published: |
Czech Technical University
2015
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| Online Access: |
https://www.scopus.com/inward/record.uri?eid=2-s2.0-84946091710&doi=10.13164%2fre.2015.0795&partnerID=40&md5=b3f9d78b1493f89060a930315fab244a http://eprints.utp.edu.my/26060/ |
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| Summary: |
This article introduces the design of a novel quasi dual-mode, elliptic coaxial filter. The transfer function is mapped to a Generalized Chebyshev prototype with symmetrically located transmission zeros (TZs) where the coupling values are extracted. Furthermore, the miniaturization is achieved by incorporating stepped-impedance coaxial line with inductive element shunted at the center to exhibit a quasi dual-mode property. Theoretical analysis together with experimental prototype is presented. The center frequency of the filter is 2.7 GHz. The simulated and measured insertion loss/return loss are 1.2 dB/15 dB and 2.5 dB/11.5 dB respectively. Both theoretical and measured results show a very good agreement. |
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