Design of Multi-Band Filters Using Parallel Connected Topology

This paper presents the design of multi-band filters using parallel connected topology. The resonator in each branch is the dual-mode resonator which provides two resonant modes per passband for miniaturization. The coupling values of the resonator are obtained by mapping the filtering function of t...

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Bibliographic Details
Main Authors: S. Cheab, P. W. Wong, S. Soeung
Format: Article
Language:English
Published: Spolecnost pro radioelektronicke inzenyrstvi 2018-04-01
Series:Radioengineering
Subjects:
Online Access:https://www.radioeng.cz/fulltexts/2018/18_01_0186_0192.pdf
Description
Summary:This paper presents the design of multi-band filters using parallel connected topology. The resonator in each branch is the dual-mode resonator which provides two resonant modes per passband for miniaturization. The coupling values of the resonator are obtained by mapping the filtering function of the dual-mode resonator to the second order Chebyshev polynomial. The control of the filter parameters, such as pass-band bandwidths and band separation, is addressed. Dual-band and triple-band filter prototypes are designed and fabricated to validate the proposed concept. The measured results show good agreement with the simulations.
ISSN:1210-2512