Circular waveguide bifurcation for asymmetric modes
Abstract
An analytical solution for a circular waveguide bifurcation with incident TE(11)- and TM(11)-modes is presented using the residue calculus method. It is shown how the coupling between the TE(1n)- and TM(1n)-modes can be taken into account by expressing the coupling factor as a contour integral, which is the key step enabling the residue calculus method to be applied. Graphical results for the scattering matrix parameters of the junction are given for a range of waveguide radii of interest in the design of dual-mode coaxial prime focus feeds for paraboloidal antennas.
- Publication:
-
IEE Proceedings H: Microwaves Optics and Antennas
- Pub Date:
- December 1984
- Bibcode:
- 1984IPMOA.131..397S
- Keywords:
-
- Branching (Physics);
- Circular Waveguides;
- Computerized Simulation;
- Coupled Modes;
- Propagation Modes;
- S Matrix Theory;
- Antenna Feeds;
- Coupling Coefficients;
- Joints (Junctions);
- Microwave Coupling;
- Parabolic Antennas;
- Electronics and Electrical Engineering