The use of lattice networks for modelling symmetric transmission line components and discontinuities

This article proposes the lattice network as a beneficial alternative to T‐ and $ \Pi - $topologies for modeling symmetric transmission line discontinuities and components.The lattice network presents some important features, which make it a powerful tool to find realizable equivalent circuits. The...

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Bibliographic Details
Published in:Microwave and optical technology letters 2013-03, Vol.55 (3), p.636-639
Main Authors: Abdo-Sánchez, Elena, Esteban, Jaime, Martín-Guerrero, Teresa M., Page, Juan E., Camacho-Peñalosa, Carlos
Format: Article
Language:English
Subjects:
Discontinuity
equivalent circuit
lattice network
Lattices
Microwaves
Networks
realizability
Reproduction
Topology
transmission line
Transmission lines
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Summary:This article proposes the lattice network as a beneficial alternative to T‐ and $ \Pi - $topologies for modeling symmetric transmission line discontinuities and components.The lattice network presents some important features, which make it a powerful tool to find realizable equivalent circuits. The limitations of the T‐ and $ \Pi - $topologies and the validity of the lattice network in terms of realizability are highlighted in this article through two microstrip components: a dumbbell‐shaped defected ground structure and a microstrip stepped‐impedance hairpin resonator. Moreover, the lattice image impedance is proposed here as a parameter that allows determining whether a branch of the network is predominant. © 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:636–639, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27385
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.27385