0000000000328987

AUTHOR

Giuseppe Conciauro

showing 6 related works from this author

S-domain modeling of conducting post in rectangular waveguides by the BI-RME method

2002

This paper describes the application of the Boundary Integral - Resonant Mode Expansion method to the modeling of a conducting post in a rectangular waveguide. The mathematical model of this structure is determined in a very short time, in the form of pole expansion of the Generalized Admittance Matrix in the s-domain. This model is very useful in the CAD of combline or interdigital filters.

EngineeringAdmittanceCurrent (mathematics)business.industryMathematical analysisStructure (category theory)Electronic engineeringBoundary (topology)CADDomain modelbusinessIntegral equationAdmittance parameters32nd European Microwave Conference, 2002
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Efficient analysis of waveguide filters by the integral equation technique and the BI-RME method

2003

This paper presents the study of rectangular waveguide filters with rounded corners in the cross-section of the waveguides. These components are suitable for low-cost mass production and can be rigorously analyzed by efficient CAD tools. The analysis approach described in this paper is based on the integral equation technique in conjunction with the boundary integral-resonant mode expansion method. Two representative examples are also reported.

Waveguide filterBoundary integral equationsComputer scienceCad toolsMathematical analysisElectronic engineeringMode (statistics)Boundary (topology)Electronic design automationIntegral equation2002 IEEE MTT-S International Microwave Symposium Digest (Cat. No.02CH37278)
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Efficient CAD of Optimal Multi-Port Junctions Loaded with Partial-Height Cylindrical Posts using the 3D BI-RME Method

2005

A rigorous full-wave technique based on the 3D BI-RME (Boundary Integral-Resonant Mode Expansion) method for the analysis and design of compensated waveguide junctions is presented. This method is used to investigate the electrical performance of right-angled bends and rectangular waveguide T-junctions loaded with partial-height cylindrical posts, with the aim of extending the typical usable bandwidths of such components. It is found that the electrical performance of a two-way power divider can be significantly improved by considering a post displaced along the symmetry plane of the structure. Therefore, this contribution reveals a new crucial design parameter not considered in previous wo…

Engineeringbusiness.industryAcousticsBandwidth (signal processing)Electronic engineeringPower dividers and directional couplersCADMicrowave transmissionWidebandUSablebusinessWaveguide (optics)Integral equationIEEE MTT-S International Microwave Symposium Digest, 2005.
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Efficient analysis of in-line waveguide filters and frequency-selective surfaces with stepped holes

2003

This paper presents a novel method for the analysis of large classes of microwave and mm-wave passive components, including in-line waveguide filters, single- and multi-layer frequency selective surfaces, and open-ended waveguide array antennas. This method is based on the segmentation technique, which permits us to reduce complex components to cascaded waveguide step discontinuities, which are separately characterized through their generalized impedance matrices, as calculated by the integral equation (IE) technique and the boundary integral-resonant mode expansion (BI-RME) method. Some examples demonstrate the flexibility and efficiency of the IE/BI-RME method, and its utility in investig…

Waveguide (electromagnetism)EngineeringWaveguide filterbusiness.industryComputer Graphics and Computer-Aided DesignIntegral equationSelective surfaceComputer Science ApplicationsOpticsvisual_artLine (geometry)Electronic componentvisual_art.visual_art_mediumElectrical and Electronic EngineeringbusinessElectrical impedanceMicrowaveInternational Journal of RF and Microwave Computer-Aided Engineering
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Analysis of Cylindrical Dielectric Resonators in Rectangular Cavities Using a State-Space Integral-Equation Method

2006

In this letter, a state-space integral-equation method in the s-domain has been employed for the accurate analysis of rectangular cavities loaded with cylindrical dielectric resonators. The dielectric obstacles have been treated in terms of their polarization equivalent charge and current densities. The dielectric resonator can be placed at any arbitrary position inside the cavity. The presented technique allows to calculate in a very efficient way a large number of solenoidal modes. The resonant frequencies of dielectric-loaded cavities are calculated and compared with data from literature and a commercial finite element method software, showing a good agreement

PhysicsSolenoidal vector fieldbusiness.industryNumerical analysisPhysics::OpticsCharge densityDielectricDielectric resonatorCondensed Matter PhysicsIntegral equationFinite element methodComputational physicsResonatorOpticsElectrical and Electronic EngineeringbusinessIEEE Microwave and Wireless Components Letters
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Efficient CAD of Generalized Coaxial Probes in Rectangular Waveguide using the 3D BI-RME Method

2006

An efficient full-wave method based on the 3D BI-RME (boundary integral-resonant mode expansion) technique for the accurate design of generalized probe-excited rectangular waveguides is presented. The flexibility of the developed CAD tool allows to analyze two common configurations frequently used in modern coaxial-fed microwave devices: conventional and disc-ended coaxial probe excitation. This last configuration is used to drastically improve the electrical response of the classical coaxial probe excitation. Moreover, the influence of the distance from the probe to the waveguide shortcircuit is also discussed, and it is shown that it plays a very important role in the design of probe-exci…

PhysicsCoaxial probeOpticsbusiness.industryCad toolsBoundary (topology)CADCoaxialbusinessWaveguide (optics)MicrowaveExcitation2006 European Microwave Conference
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