6533b825fe1ef96bd128264f

RESEARCH PRODUCT

Efficient analysis of cubic junction of rectangular waveguides using admittance-matrix representation

V.e. BoriaBenito GimenoSantiago CogollosHector EstebanMarco Guglielmi

subject

Computer Networks and Communicationsbusiness.industryMathematical analysisPhysics::OpticsWaveguide (optics)Admittance parametersMatrix (mathematics)OpticsIntersectionSimple (abstract algebra)SegmentationElectrical and Electronic EngineeringRepresentation (mathematics)businessBlock (data storage)Mathematics

description

In the paper an efficient and accurate method, based on the multimode-admittance-matrix representation and the theory of cavities, is proposed for the analysis of a six-port ‘cubic’ junction composed of the orthogonal intersection of three rectangular waveguides. Very simple closed-form analytical expressions are explicitly detailed for all matrix elements of this basic key building block. More general waveguide multiport junctions, composed of a central cubic junction with arbitrarily shaped waveguide access ports, are also studied using a segmentation procedure. To validate the theory, numerical results are first discussed for a standard rectangular waveguide six-port cross junction. Finally, the analysis method proposed is also successfully applied to H- and E-plane T-junctions whose side arms are waveguides with rounded corners.

https://doi.org/10.1049/ip-map:20000828