Fast frequency sweep for building-block connections in microwave filter analysis via the reduced-basis method

Rubia Hernández, Valentín de la and Galán, Alba (2018). Fast frequency sweep for building-block connections in microwave filter analysis via the reduced-basis method. In: "2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)", 16/07/2018 - 18/072018, Ann Arbor, MI, USA. pp. 1-3. https://doi.org/10.1109/IMWS-AMP.2018.8457159.

Description

Title: Fast frequency sweep for building-block connections in microwave filter analysis via the reduced-basis method
Author/s:
  • Rubia Hernández, Valentín de la
  • Galán, Alba
Item Type: Presentation at Congress or Conference (Article)
Event Title: 2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)
Event Dates: 16/07/2018 - 18/072018
Event Location: Ann Arbor, MI, USA
Title of Book: 2018 IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP)
Date: 2018
Subjects:
Freetext Keywords: Computer aided engineering; finite element methods; Galerkin method; reduced basis methods; reduced order systems
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Matemática Aplicada a las Tecnologías de la Información y las Comunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Current design of microwave filters relies on intensive computer simulations to accurately predict the electromagnetic behavior of microwave circuits. Typically, global optimization techniques are taken into account and reduced knowledge of the actual electromagnetics is considered within computer-aided design. To this end, microwave filter development results in a rather time-consuming engineering task. In this work, we address a methodology for fast frequency analysis in microwave circuits in order to speed up full-wave simulations. Appropriate Finite Element solution to time-harmonic Maxwell’s equations in the frequency band of interest is involved and a reliable reduced-order model is obtained via the ReducedBasis Method. This time, the analysis domain is decomposed into building-blocks and a reduced-order model for fast frequency sweep is carried out for each block. The electromagnetics within each block is described in terms of a Generalised Impedance Matrix (GIM) transfer function. In order to get the frequency response of the whole microwave circuit, the GIMs for each block should be connected appropriately. This process has been traditionally done frequency by frequency and can be considered a bottleneck in Domain Decomposition (DD) approaches. In this work, we take into account a further fast frequency sweep for the building-block connection problem. As a result, a speed-up in the simulation time in microwave circuits is achieved as the bottleneck in the DD approach is completely removed.

More information

Item ID: 55285
DC Identifier: http://oa.upm.es/55285/
OAI Identifier: oai:oa.upm.es:55285
DOI: 10.1109/IMWS-AMP.2018.8457159
Official URL: https://ieeexplore.ieee.org/document/8457159
Deposited by: Memoria Investigacion
Deposited on: 01 Jul 2019 16:40
Last Modified: 01 Jul 2019 16:40
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