Papers in Engineering by J. Brian Davies
IEE Journal on Microwaves, Optics and Acoustics, Jan 1977
An analysis and design procedure are presented for a [waveguide] mode transducer which converts t... more An analysis and design procedure are presented for a [waveguide] mode transducer which converts the rectangular TE10 mode into the circular TE01 mode. The [electromagnetic] field analysis leads to an explicit evaluation of the transducer's S matrix. An experimental model has been designed using the procedure and the measured performance, 0.2 dB average insertion loss from 33 to 50 GHz, is a significant improvement upon previously reported designs [namely, by Bell Labs in USA and Hitachi in Japan].
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Papers by J. Brian Davies
Journal of Lightwave Technology, 1988
Abstract-A novel approach to analyze discontinuity problems in op-tical waveguides is presented. ... more Abstract-A novel approach to analyze discontinuity problems in op-tical waveguides is presented. The method is a combination of the vec-tor finite element and the least square boundary residual method. The vector Sfield 6nite element method is capable of providing accurate ...
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IEEE/OSA Journal of Lightwave Technology - J LIGHTWAVE TECHNOL, 1994
This paper presents a comparison of two- finite-element programs developed for accurate cross-sec... more This paper presents a comparison of two- finite-element programs developed for accurate cross-sectional analysis of arbitrary optical and microwave waveguiding structures. Both techniques were developed in response to the growing demand from scientists and engineers for application-specific expert systems, and employ advanced interactive pre- and post-processing facilities. They show good agreement, strongly complement one another, and could form the core of a whole library of similar “intelligent” software for computer-assisted analysis and design, with a wide range of possible applications within both supercomputer and workstation environments
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Papers in Engineering by J. Brian Davies
Papers by J. Brian Davies