EM based design of large-scale dielectric resonator multiplexers by space mapping

Ismail, M.A.; Smith, D. J.; Panariello, A.; Wang, Y.; Yu, Ming

doi:10.1109/mwsym.2003.1210936

Cited by 10 publications

(8 citation statements)

References 8 publications

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“…Electrical field strength is another parameter of interest as it is used for power breakdown analysis [3]. The electrical field values in HFSS are normalized to 1 V/m, while in MWS, field values are calculated based on 1J stored energy.…”

Section: Resonant Frequencies Of One or Two Resonatorseigen Mode Solversmentioning

confidence: 99%

“…Space mapping uses a fast coarse (circuit) model for optimization while the fine model (full-wave simulation) is used only for verification or calibration of the coarse model. For example, a spacemapping-based algorithm for filter design has been developed in [3] and successfully applied to design tenchannel dielectric resonator (DR) output multiplexers with more than 100 design parameters. In this section, we consider the application of space-mapping optimization to high-order DR filters and T-switches.…”

Section: Cad Techniques For Em Simulatorsmentioning

confidence: 99%

“…Direct EM-based optimization of such filters is formidable because of the large number of design parameters and the complexity of the filters. A variation of the filter design algorithm in [3] has been applied to design the ten-pole DR-loaded cavity filter shown in Figure 11. This filter is typically used in the input multiplexer stage of a satellite communication system.…”

Section: High-order Dr Filter Designmentioning

confidence: 99%

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Passive 3-D simulators

Panariello

Ismail

et al. 2008

IEEE Microwave

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Section: Resonant Frequencies Of One or Two Resonatorseigen Mode Solversmentioning

confidence: 99%

Section: Cad Techniques For Em Simulatorsmentioning

confidence: 99%

Section: High-order Dr Filter Designmentioning

confidence: 99%

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Passive 3-D simulators

Panariello

Ismail

et al. 2008

IEEE Microwave

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“…Use of optimization allows including the interaction among the channel filters very easily, using very accurate models (even full‐wave electromagnetic) for representing both the filters and the junction []. An interesting example of such an approach, combining finite‐element method and space mapping optimization, is reported in [], where a 10‐channel multiplexer is designed with a significant improvement of computation speed with respect to purely electromagnetic‐based models.…”

Section: Introductionmentioning

confidence: 99%

Application of polynomial design of multiplexers to the implementation of a manifold microstrip triplexer

Rebenaque

Macchiarella

2013

Int J RF and Microwave Comp Aid Eng

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This article presents a microstrip implementation of a manifold multiplexer. The design procedure is based on evaluation, through an efficient synthesis algorithm recently proposed, of the characteristic polynomials of the triplexer, including the channel filters. Both the manifold and channel filters parameters are also available at the end of the synthesis. This approach, based on polynomial modeling of the triplexer, has been experimentally validated for the first time through a practical implementation in planar technology. The fabricated prototype consists of three channel filters of third order centered at 1.84, 1.95, and 2.14 GHz, with bandwidth of 75, 60, and 60 MHz respectively. This work illustrates in detail the design and implementation of the practical triplexer, starting from the initial specifications and obtaining the final physical dimensions of the structure. Following the technique here shown, each filter is synthesized taking into account for the loading effects of the whole manifold; the filters dimensioning can be carried out with the filters separated from the multiplexer. In this way the optimization tasks are greatly simplified as compared with previous techniques for multiplexer design. The measured results of a manufactured prototype show return losses under 17 dB and minimum isolation between channels equal to 25 dB. © 2013 Wiley Periodicals, Inc. Int J RF and Microwave CAE 23:690–698, 2013.

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“…In addition, ASM techniques have also been used for the design of multiplexers based on dielectric-resonator lters [47], where the number of ASM iterations needed are high due to the high number of variables involved in the complete design process.…”

Section: Design and Optimization Procedures Of Microwave Waveguide Ltersmentioning

confidence: 99%

Development of New Tunable Passive Microwave Components in Waveguide Technology

García¹

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La present tesis doctoral té com a objectiu el estudi, desenvolupament, diseny i fabricació de nous components pasius de microones, tals com els ltres i multiplexors que operen en les bandes d'alta freqüencia dels actuals i futurs satèl•lits de telecomunicació (bandes Ku, K i Ka) entre 12 i 40 GHz, Aquests components han de ser capaços d'oferir tant, respostes clàsiques sencilles com avançades (eliptiques), i que a més a més presenten una capacitat de resintonització (tant en termes de freqüència central com d'amplada de banda). Aquestos nous components pasius donaràn solució a les necesitats dels actuals sistemes espacials, que requereixen de majors taxes de transmissió de dades (senyals de major amplada de banda), així com de major exibilitat en les frequencies de operació, per oferir en un mateix dispositiu distints serveis i prestacions.Per aquesta raó, es proposen tant modicacions a les estructures del ltres clàsics de microones actuals, com la introducció de noves estructures.Així mateix, també s'investigarà l'us dels tornells d'ajustament post-fabricació dels ltres com a tornells de sintonía metàl•lica i la introducció de tornells de sintonía realitzats amb diferents materials dielèctrics Es pretén, d'aquesta forma, la millora de les respostes del dispositius actuals; reduint la envergadura i els costos de producció (gràcies a la relaxació de les toleràncies de fabricació), abaratint d'aquesta forma la fabricació i futura operació dels ltres mateixos.Aprotant aquestos nous dispositius es treballarà també en el disseny, fabricaçió i mesura de components més complexes, com poden ser els multiplexors de canal i els commutadors amb resposta selectiva en freqüencia, tots ells necessaris en els sistemes de comunicacions espacials i en íntima relació amb els ltres abans esmenats.Per nalitzar, el desenvolupament de tots aquestos dispositius vindrà acompanyat d'una metodologia de disseny basada en l'us del Mapatge Espacial Agressiu (Aggressive Space Mapping, ASM), especialment adaptat als ltres en guia d'ona.vii

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EM based design of large-scale dielectric resonator multiplexers by space mapping

Cited by 10 publications

References 8 publications

Passive 3-D simulators

Passive 3-D simulators

Application of polynomial design of multiplexers to the implementation of a manifold microstrip triplexer

Development of New Tunable Passive Microwave Components in Waveguide Technology

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