Novel Broadside Trisection Filters Employing Nonresonating Nodes

Martinez-Mendoza, M.; Casamichana, David; Perez-Soler, F.J.; Álvarez‐Melcón, A.

doi:10.1109/eumc.2008.4751532

2008 38th European Microwave Conference 2008

DOI: 10.1109/eumc.2008.4751532

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Novel Broadside Trisection Filters Employing Nonresonating Nodes

M. Martinez-Mendoza

David Casamichana

F.J. Perez-Soler

et al.

Abstract: Abstract-This work presents novel filter topologies implemented in microstrip technology. The topologies combine printed line resonators with non resonating nodes (NRN) to implement transmission zeros in a very flexible way. Depending on the number of resonators and NRN, the filtering response exhibits a single transmission zero either below or above the passband, or two transmission zeros, one at each side of the passband. Several examples are designed and validated, using the new proposed structures.

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2021

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Unified Analytical Synthesis of Cascaded n-Tuplets Filters Including Nonresonant Nodes

Mejillones

Oldoni²,

Moscato³

et al. 2021

IEEE Trans. Microwave Theory Techn.

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This paper presents an analytical method for the synthesis of a low-pass prototype filter constituted by cascaded n-tuplets including resonant and non-resonant nodes. The method extends the features of previous published solutions, limited to resonant nodes only or that allow the inclusion of non-resonant nodes but in rigid configurations. The method begins with extracted-pole synthesis, arbitrarily defining the transmission zeros. Then, a filter topology transformation is applied by grouped node blocks to obtain the desired topology, with each n-tuplet characterized by the assigned transmission zeros. The procedure overcomes the ad-hoc techniques currently available in the literature. Moreover, the novel filter transformation presented here (from extracted-pole to cross-coupled topology) provides an additional degree of freedom for filter synthesis, which can be further exploited by filter designers. Several examples are presented to validate the novel synthesis procedure.

show abstract

Unified Analytical Synthesis of Cascaded n-Tuplets Filters Including Nonresonant Nodes

Mejillones

Oldoni²,

Moscato³

et al. 2021

IEEE Trans. Microwave Theory Techn.

View full text Add to dashboard Cite

show abstract

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Novel Broadside Trisection Filters Employing Nonresonating Nodes

Cited by 1 publication

References 10 publications

Unified Analytical Synthesis of Cascaded n-Tuplets Filters Including Nonresonant Nodes

Unified Analytical Synthesis of Cascaded n-Tuplets Filters Including Nonresonant Nodes

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